./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 6c24879c 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-?-6c24879 [2022-07-12 12:58:23,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:58:23,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:58:23,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:58:23,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:58:23,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:58:23,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:58:23,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:58:23,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:58:23,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:58:23,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:58:23,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:58:23,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:58:23,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:58:23,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:58:23,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:58:23,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:58:23,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:58:23,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:58:23,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:58:23,695 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:58:23,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:58:23,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:58:23,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:58:23,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:58:23,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:58:23,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:58:23,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:58:23,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:58:23,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:58:23,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:58:23,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:58:23,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:58:23,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:58:23,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:58:23,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:58:23,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:58:23,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:58:23,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:58:23,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:58:23,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:58:23,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:58:23,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:58:23,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:58:23,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:58:23,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:58:23,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:58:23,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:58:23,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:58:23,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:58:23,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:58:23,748 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:58:23,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:58:23,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:58:23,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:58:23,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:58:23,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:58:23,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:58:23,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:58:23,750 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:58:23,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:58:23,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:58:23,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:58:23,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:58:23,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:58:23,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:58:23,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:58:23,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:58:23,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:58:23,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:58:23,752 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:58:23,752 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:58:23,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:58:23,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28ad7165b7652313e24287c0ae583e63a8e735cceddf7021c32bc93d57d1e3d7 [2022-07-12 12:58:23,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:58:23,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:58:23,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:58:23,960 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:58:23,960 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:58:23,961 INFO L432 ainManager$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 [2022-07-12 12:58:24,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43eab95ca/7f0a27f923824a3e83133a13dc92b508/FLAGd3bb501e9 [2022-07-12 12:58:24,700 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:58:24,701 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 [2022-07-12 12:58:24,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43eab95ca/7f0a27f923824a3e83133a13dc92b508/FLAGd3bb501e9 [2022-07-12 12:58:24,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43eab95ca/7f0a27f923824a3e83133a13dc92b508 [2022-07-12 12:58:24,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:58:24,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:58:24,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:58:24,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:58:24,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:58:24,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:58:24" (1/1) ... [2022-07-12 12:58:24,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cdb9c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:24, skipping insertion in model container [2022-07-12 12:58:24,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:58:24" (1/1) ... [2022-07-12 12:58:24,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:58:24,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:58:25,365 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6621] [2022-07-12 12:58:25,368 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] [2022-07-12 12:58:26,130 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] [2022-07-12 12:58:27,256 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 12:58:27,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:58:27,293 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:58:27,387 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6621] [2022-07-12 12:58:27,388 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] [2022-07-12 12:58:27,405 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] [2022-07-12 12:58:27,656 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-12 12:58:27,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:58:27,713 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:58:27,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27 WrapperNode [2022-07-12 12:58:27,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:58:27,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:58:27,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:58:27,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:58:27,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27" (1/1) ... [2022-07-12 12:58:27,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27" (1/1) ... [2022-07-12 12:58:28,016 INFO L137 Inliner]: procedures = 383, calls = 6912, calls flagged for inlining = 191, calls inlined = 77, statements flattened = 11282 [2022-07-12 12:58:28,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:58:28,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:58:28,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:58:28,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:58:28,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27" (1/1) ... [2022-07-12 12:58:28,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27" (1/1) ... [2022-07-12 12:58:28,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27" (1/1) ... [2022-07-12 12:58:28,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27" (1/1) ... [2022-07-12 12:58:28,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27" (1/1) ... [2022-07-12 12:58:28,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27" (1/1) ... [2022-07-12 12:58:28,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27" (1/1) ... [2022-07-12 12:58:28,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:58:28,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:58:28,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:58:28,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:58:28,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27" (1/1) ... [2022-07-12 12:58:28,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:58:28,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:58:28,354 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) [2022-07-12 12:58:28,366 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 [2022-07-12 12:58:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-12 12:58:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-12 12:58:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-12 12:58:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-12 12:58:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_if_write [2022-07-12 12:58:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_if_write [2022-07-12 12:58:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure strn_len [2022-07-12 12:58:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure strn_len [2022-07-12 12:58:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-12 12:58:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:58:28,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:58:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-12 12:58:28,388 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-12 12:58:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-12 12:58:28,388 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-12 12:58:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 12:58:28,388 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 12:58:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 12:58:28,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 12:58:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:58:28,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:58:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-07-12 12:58:28,389 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-07-12 12:58:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_thread_write [2022-07-12 12:58:28,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_thread_write [2022-07-12 12:58:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-12 12:58:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 12:58:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 12:58:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:58:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:58:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:58:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:58:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:58:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:58:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure count_trail_chars [2022-07-12 12:58:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure count_trail_chars [2022-07-12 12:58:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure dev_net [2022-07-12 12:58:28,391 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_net [2022-07-12 12:58:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:58:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 12:58:28,391 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 12:58:28,391 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-07-12 12:58:28,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-07-12 12:58:28,392 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 12:58:28,392 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 12:58:28,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:58:28,392 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-07-12 12:58:28,392 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-07-12 12:58:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-07-12 12:58:28,393 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-07-12 12:58:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-12 12:58:28,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-12 12:58:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-12 12:58:28,394 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-12 12:58:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:58:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:58:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2022-07-12 12:58:28,394 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2022-07-12 12:58:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 12:58:28,395 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 12:58:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2022-07-12 12:58:28,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2022-07-12 12:58:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure hex32_arg [2022-07-12 12:58:28,395 INFO L138 BoogieDeclarations]: Found implementation of procedure hex32_arg [2022-07-12 12:58:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 12:58:28,395 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 12:58:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2022-07-12 12:58:28,396 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2022-07-12 12:58:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure num_arg [2022-07-12 12:58:28,396 INFO L138 BoogieDeclarations]: Found implementation of procedure num_arg [2022-07-12 12:58:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 12:58:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 12:58:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 12:58:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 12:58:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_thread_open [2022-07-12 12:58:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_thread_open [2022-07-12 12:58:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:58:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:58:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-12 12:58:28,397 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-12 12:58:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-12 12:58:28,398 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-12 12:58:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 12:58:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-07-12 12:58:28,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-07-12 12:58:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 12:58:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-07-12 12:58:28,399 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-07-12 12:58:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure pgctrl_write [2022-07-12 12:58:28,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pgctrl_write [2022-07-12 12:58:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-07-12 12:58:28,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-07-12 12:58:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 12:58:28,400 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 12:58:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-12 12:58:28,400 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-12 12:58:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 12:58:28,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 12:58:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-07-12 12:58:28,400 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-07-12 12:58:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-12 12:58:28,401 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-12 12:58:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:58:28,401 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:58:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-12 12:58:28,401 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-12 12:58:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 12:58:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-07-12 12:58:28,401 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-07-12 12:58:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_clear_counters [2022-07-12 12:58:28,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_clear_counters [2022-07-12 12:58:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc_node [2022-07-12 12:58:28,403 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc_node [2022-07-12 12:58:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:58:28,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:58:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-07-12 12:58:28,405 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-07-12 12:58:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure in6_pton [2022-07-12 12:58:28,406 INFO L138 BoogieDeclarations]: Found implementation of procedure in6_pton [2022-07-12 12:58:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2022-07-12 12:58:28,406 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2022-07-12 12:58:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-07-12 12:58:28,410 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-07-12 12:58:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:58:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-07-12 12:58:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-07-12 12:58:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 12:58:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 12:58:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-12 12:58:28,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-12 12:58:28,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:58:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:58:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-12 12:58:28,412 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-12 12:58:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure __pktgen_NN_threads [2022-07-12 12:58:28,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __pktgen_NN_threads [2022-07-12 12:58:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 12:58:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_wait_all_threads_run [2022-07-12 12:58:28,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_wait_all_threads_run [2022-07-12 12:58:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-07-12 12:58:28,412 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-07-12 12:58:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure in_aton [2022-07-12 12:58:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure in_aton [2022-07-12 12:58:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure mac_pton [2022-07-12 12:58:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_pton [2022-07-12 12:58:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_subsys [2022-07-12 12:58:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_subsys [2022-07-12 12:58:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-07-12 12:58:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-07-12 12:58:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure proc_remove [2022-07-12 12:58:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_remove [2022-07-12 12:58:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure free_SAs [2022-07-12 12:58:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure free_SAs [2022-07-12 12:58:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-12 12:58:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-12 12:58:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 12:58:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 12:58:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure pgctrl_open [2022-07-12 12:58:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pgctrl_open [2022-07-12 12:58:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-12 12:58:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-12 12:58:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-07-12 12:58:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-07-12 12:58:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 12:58:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_if_open [2022-07-12 12:58:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_if_open [2022-07-12 12:58:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-12 12:58:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:58:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:58:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 12:58:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 12:58:28,899 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:58:28,902 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:58:43,106 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:58:45,462 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:58:45,480 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:58:45,481 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 12:58:45,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:58:45 BoogieIcfgContainer [2022-07-12 12:58:45,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:58:45,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:58:45,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:58:45,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:58:45,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:58:24" (1/3) ... [2022-07-12 12:58:45,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e4632c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:58:45, skipping insertion in model container [2022-07-12 12:58:45,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:58:27" (2/3) ... [2022-07-12 12:58:45,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e4632c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:58:45, skipping insertion in model container [2022-07-12 12:58:45,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:58:45" (3/3) ... [2022-07-12 12:58:45,491 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 [2022-07-12 12:58:45,500 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:58:45,501 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:58:45,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:58:45,583 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@8e3674d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@17ba5e81 [2022-07-12 12:58:45,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:58:45,591 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) [2022-07-12 12:58:45,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-12 12:58:45,623 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:58:45,625 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] [2022-07-12 12:58:45,625 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:58:45,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:58:45,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1040167170, now seen corresponding path program 1 times [2022-07-12 12:58:45,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:58:45,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967537256] [2022-07-12 12:58:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:58:45,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:58:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:58:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:58:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:58:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 12:58:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:58:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:58:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:58:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 12:58:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 12:58:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 12:58:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 12:58:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:58:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:58:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 12:58:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 12:58:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 12:58:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 12:58:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 12:58:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:58:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:58:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 12:58:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 12:58:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 12:58:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 12:58:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 12:58:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:58:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:58:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 12:58:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-12 12:58:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-12 12:58:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-12 12:58:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-12 12:58:46,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:58:46,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967537256] [2022-07-12 12:58:46,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967537256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:58:46,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:58:46,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:58:46,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425756794] [2022-07-12 12:58:46,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:58:46,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:58:46,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:58:46,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:58:46,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:58:46,476 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) [2022-07-12 12:59:22,974 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 [] [2022-07-12 12:59:24,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:27,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:29,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:31,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:33,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:35,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:37,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:39,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:47,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:49,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:51,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:53,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:55,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:57,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:59,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:01,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:03,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:06,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:07,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:00:07,733 INFO L93 Difference]: Finished difference Result 4499 states and 6755 transitions. [2022-07-12 13:00:07,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 13:00:07,735 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 [2022-07-12 13:00:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:00:07,760 INFO L225 Difference]: With dead ends: 4499 [2022-07-12 13:00:07,760 INFO L226 Difference]: Without dead ends: 2925 [2022-07-12 13:00:07,770 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 [2022-07-12 13:00:07,772 INFO L413 NwaCegarLoop]: 2399 mSDtfsCounter, 2750 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 828 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2973 SdHoareTripleChecker+Valid, 6135 SdHoareTripleChecker+Invalid, 4629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 828 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:00:07,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2973 Valid, 6135 Invalid, 4629 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [828 Valid, 3783 Invalid, 18 Unknown, 0 Unchecked, 80.8s Time] [2022-07-12 13:00:07,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-07-12 13:00:07,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2750. [2022-07-12 13:00:07,958 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) [2022-07-12 13:00:07,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 4045 transitions. [2022-07-12 13:00:07,976 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 4045 transitions. Word has length 213 [2022-07-12 13:00:07,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:00:07,977 INFO L495 AbstractCegarLoop]: Abstraction has 2750 states and 4045 transitions. [2022-07-12 13:00:07,978 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) [2022-07-12 13:00:07,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 4045 transitions. [2022-07-12 13:00:07,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-12 13:00:07,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:00:07,987 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] [2022-07-12 13:00:07,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 13:00:07,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:00:07,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:00:07,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1442494954, now seen corresponding path program 1 times [2022-07-12 13:00:07,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:00:07,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693285410] [2022-07-12 13:00:07,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:00:07,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:00:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:00:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 13:00:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 13:00:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 13:00:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 13:00:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 13:00:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 13:00:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 13:00:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:00:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 13:00:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 13:00:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 13:00:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:00:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 13:00:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 13:00:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:00:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 13:00:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 13:00:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 13:00:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 13:00:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:00:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 13:00:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:00:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 13:00:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 13:00:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-12 13:00:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 13:00:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-12 13:00:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:00:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-12 13:00:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:08,381 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2022-07-12 13:00:08,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:00:08,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693285410] [2022-07-12 13:00:08,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693285410] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:00:08,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:00:08,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:00:08,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207923765] [2022-07-12 13:00:08,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:00:08,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:00:08,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:00:08,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:00:08,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:00:08,384 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) [2022-07-12 13:00:30,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:32,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:34,889 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 [] [2022-07-12 13:00:40,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:00:40,552 INFO L93 Difference]: Finished difference Result 8190 states and 12149 transitions. [2022-07-12 13:00:40,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 13:00:40,552 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 [2022-07-12 13:00:40,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:00:40,579 INFO L225 Difference]: With dead ends: 8190 [2022-07-12 13:00:40,580 INFO L226 Difference]: Without dead ends: 5480 [2022-07-12 13:00:40,590 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 [2022-07-12 13:00:40,591 INFO L413 NwaCegarLoop]: 2498 mSDtfsCounter, 4978 mSDsluCounter, 3281 mSDsCounter, 0 mSdLazyCounter, 2626 mSolverCounterSat, 2174 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5221 SdHoareTripleChecker+Valid, 5779 SdHoareTripleChecker+Invalid, 4803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2174 IncrementalHoareTripleChecker+Valid, 2626 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:00:40,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5221 Valid, 5779 Invalid, 4803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2174 Valid, 2626 Invalid, 3 Unknown, 0 Unchecked, 31.8s Time] [2022-07-12 13:00:40,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5480 states. [2022-07-12 13:00:40,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5480 to 5172. [2022-07-12 13:00:40,730 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) [2022-07-12 13:00:40,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 7652 transitions. [2022-07-12 13:00:40,753 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 7652 transitions. Word has length 208 [2022-07-12 13:00:40,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:00:40,753 INFO L495 AbstractCegarLoop]: Abstraction has 5172 states and 7652 transitions. [2022-07-12 13:00:40,753 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) [2022-07-12 13:00:40,754 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 7652 transitions. [2022-07-12 13:00:40,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-12 13:00:40,776 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:00:40,776 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] [2022-07-12 13:00:40,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 13:00:40,776 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:00:40,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:00:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash -514015625, now seen corresponding path program 1 times [2022-07-12 13:00:40,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:00:40,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334535745] [2022-07-12 13:00:40,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:00:40,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:00:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:00:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 13:00:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 13:00:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 13:00:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 13:00:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 13:00:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 13:00:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 13:00:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:00:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 13:00:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 13:00:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 13:00:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:00:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 13:00:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:00:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 13:00:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 13:00:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 13:00:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 13:00:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 13:00:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:00:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:00:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-12 13:00:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:00:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-12 13:00:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:00:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 13:00:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 13:00:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-12 13:00:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 13:00:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:00:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 13:00:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:00:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 13:00:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 13:00:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 13:00:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-12 13:00:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-12 13:00:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:00:41,246 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-07-12 13:00:41,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:00:41,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334535745] [2022-07-12 13:00:41,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334535745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:00:41,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:00:41,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:00:41,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535988997] [2022-07-12 13:00:41,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:00:41,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:00:41,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:00:41,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:00:41,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:00:41,250 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) [2022-07-12 13:01:04,682 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 [] [2022-07-12 13:01:06,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:01:08,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:01:33,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:01:35,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:01:37,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:01:44,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:01:46,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:01:46,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:01:46,863 INFO L93 Difference]: Finished difference Result 13616 states and 20258 transitions. [2022-07-12 13:01:46,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 13:01:46,864 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 [2022-07-12 13:01:46,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:01:46,911 INFO L225 Difference]: With dead ends: 13616 [2022-07-12 13:01:46,912 INFO L226 Difference]: Without dead ends: 8484 [2022-07-12 13:01:46,933 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 [2022-07-12 13:01:46,936 INFO L413 NwaCegarLoop]: 3757 mSDtfsCounter, 3439 mSDsluCounter, 4445 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 1159 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3679 SdHoareTripleChecker+Valid, 8202 SdHoareTripleChecker+Invalid, 4398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1159 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:01:46,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3679 Valid, 8202 Invalid, 4398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1159 Valid, 3232 Invalid, 7 Unknown, 0 Unchecked, 65.2s Time] [2022-07-12 13:01:46,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8484 states. [2022-07-12 13:01:47,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8484 to 7924. [2022-07-12 13:01:47,243 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) [2022-07-12 13:01:47,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 11735 transitions. [2022-07-12 13:01:47,277 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 11735 transitions. Word has length 273 [2022-07-12 13:01:47,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:01:47,278 INFO L495 AbstractCegarLoop]: Abstraction has 7924 states and 11735 transitions. [2022-07-12 13:01:47,280 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) [2022-07-12 13:01:47,280 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 11735 transitions. [2022-07-12 13:01:47,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-12 13:01:47,302 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:01:47,303 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] [2022-07-12 13:01:47,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 13:01:47,303 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:01:47,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:01:47,304 INFO L85 PathProgramCache]: Analyzing trace with hash 94582647, now seen corresponding path program 1 times [2022-07-12 13:01:47,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:01:47,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265951597] [2022-07-12 13:01:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:01:47,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:01:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:01:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 13:01:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 13:01:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 13:01:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 13:01:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 13:01:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 13:01:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 13:01:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:01:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 13:01:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 13:01:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 13:01:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 13:01:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 13:01:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:01:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 13:01:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 13:01:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 13:01:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 13:01:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 13:01:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:01:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-12 13:01:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-12 13:01:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-12 13:01:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-12 13:01:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:01:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 13:01:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 13:01:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-12 13:01:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-12 13:01:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-12 13:01:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-12 13:01:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:01:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 13:01:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 13:01:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-12 13:01:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-12 13:01:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-12 13:01:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:01:47,828 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2022-07-12 13:01:47,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:01:47,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265951597] [2022-07-12 13:01:47,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265951597] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:01:47,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:01:47,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:01:47,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520316078] [2022-07-12 13:01:47,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:01:47,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:01:47,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:01:47,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:01:47,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:01:47,831 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) [2022-07-12 13:02:27,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:02:28,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:02:37,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:02:39,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:02:41,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:02:43,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:02:45,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:02:47,654 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 []