./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.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 18adc7ce46ffd1a3ff82c3c7fa6ef66e3ed2399c064dd9dfbe8501509215a2b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 02:29:08,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 02:29:08,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 02:29:08,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 02:29:08,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 02:29:08,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 02:29:08,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 02:29:08,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 02:29:08,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 02:29:08,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 02:29:08,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 02:29:08,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 02:29:08,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 02:29:08,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 02:29:08,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 02:29:08,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 02:29:08,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 02:29:08,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 02:29:08,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 02:29:08,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 02:29:08,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 02:29:08,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 02:29:08,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 02:29:08,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 02:29:08,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 02:29:08,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 02:29:08,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 02:29:08,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 02:29:08,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 02:29:08,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 02:29:08,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 02:29:08,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 02:29:08,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 02:29:08,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 02:29:08,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 02:29:08,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 02:29:08,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 02:29:08,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 02:29:08,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 02:29:08,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 02:29:08,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 02:29:08,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 02:29:08,884 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 02:29:08,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 02:29:08,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 02:29:08,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 02:29:08,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 02:29:08,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 02:29:08,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 02:29:08,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 02:29:08,888 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 02:29:08,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 02:29:08,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 02:29:08,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 02:29:08,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 02:29:08,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 02:29:08,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 02:29:08,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 02:29:08,890 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 02:29:08,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 02:29:08,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 02:29:08,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 02:29:08,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 02:29:08,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 02:29:08,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 02:29:08,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 02:29:08,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 02:29:08,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 02:29:08,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 02:29:08,893 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 02:29:08,893 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 02:29:08,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 02:29:08,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 02:29:08,893 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18adc7ce46ffd1a3ff82c3c7fa6ef66e3ed2399c064dd9dfbe8501509215a2b1 [2021-11-17 02:29:09,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 02:29:09,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 02:29:09,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 02:29:09,128 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 02:29:09,131 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 02:29:09,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-11-17 02:29:09,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/366d2ccbd/7600bee9dfb742b5b0dc26bed5d9bcca/FLAG813412721 [2021-11-17 02:29:09,855 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 02:29:09,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-11-17 02:29:09,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/366d2ccbd/7600bee9dfb742b5b0dc26bed5d9bcca/FLAG813412721 [2021-11-17 02:29:09,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/366d2ccbd/7600bee9dfb742b5b0dc26bed5d9bcca [2021-11-17 02:29:09,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 02:29:09,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 02:29:09,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 02:29:09,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 02:29:09,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 02:29:09,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:29:09" (1/1) ... [2021-11-17 02:29:09,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@607c908e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:09, skipping insertion in model container [2021-11-17 02:29:09,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:29:09" (1/1) ... [2021-11-17 02:29:09,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 02:29:10,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 02:29:12,367 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i[376341,376354] [2021-11-17 02:29:12,411 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 02:29:12,438 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 02:29:12,762 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i[376341,376354] [2021-11-17 02:29:12,771 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 02:29:12,922 INFO L208 MainTranslator]: Completed translation [2021-11-17 02:29:12,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12 WrapperNode [2021-11-17 02:29:12,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 02:29:12,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 02:29:12,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 02:29:12,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 02:29:12,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12" (1/1) ... [2021-11-17 02:29:13,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12" (1/1) ... [2021-11-17 02:29:13,299 INFO L137 Inliner]: procedures = 595, calls = 3937, calls flagged for inlining = 264, calls inlined = 257, statements flattened = 9781 [2021-11-17 02:29:13,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 02:29:13,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 02:29:13,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 02:29:13,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 02:29:13,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12" (1/1) ... [2021-11-17 02:29:13,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12" (1/1) ... [2021-11-17 02:29:13,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12" (1/1) ... [2021-11-17 02:29:13,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12" (1/1) ... [2021-11-17 02:29:13,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12" (1/1) ... [2021-11-17 02:29:13,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12" (1/1) ... [2021-11-17 02:29:13,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12" (1/1) ... [2021-11-17 02:29:13,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 02:29:13,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 02:29:13,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 02:29:13,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 02:29:13,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12" (1/1) ... [2021-11-17 02:29:13,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 02:29:13,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:29:13,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 02:29:13,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 02:29:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure resize_cache_dev [2021-11-17 02:29:13,682 INFO L138 BoogieDeclarations]: Found implementation of procedure resize_cache_dev [2021-11-17 02:29:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure block_size_is_power_of_two [2021-11-17 02:29:13,682 INFO L138 BoogieDeclarations]: Found implementation of procedure block_size_is_power_of_two [2021-11-17 02:29:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-17 02:29:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-17 02:29:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_manager_destroy [2021-11-17 02:29:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_manager_destroy [2021-11-17 02:29:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-11-17 02:29:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-11-17 02:29:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_sm_root [2021-11-17 02:29:13,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_sm_root [2021-11-17 02:29:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure bio_writes_complete_block [2021-11-17 02:29:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_writes_complete_block [2021-11-17 02:29:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-17 02:29:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_pre_commit [2021-11-17 02:29:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_pre_commit [2021-11-17 02:29:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2021-11-17 02:29:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2021-11-17 02:29:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure cache_map [2021-11-17 02:29:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_map [2021-11-17 02:29:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 02:29:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 02:29:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure process_migrations [2021-11-17 02:29:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure process_migrations [2021-11-17 02:29:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_origin_clear_discard [2021-11-17 02:29:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_origin_clear_discard [2021-11-17 02:29:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_checksum [2021-11-17 02:29:13,685 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_checksum [2021-11-17 02:29:13,685 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-17 02:29:13,686 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-17 02:29:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure put_policy [2021-11-17 02:29:13,686 INFO L138 BoogieDeclarations]: Found implementation of procedure put_policy [2021-11-17 02:29:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_tick_bio_needed [2021-11-17 02:29:13,686 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_tick_bio_needed [2021-11-17 02:29:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 02:29:13,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 02:29:13,686 INFO L130 BoogieDeclarations]: Found specification of procedure update_flags [2021-11-17 02:29:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure update_flags [2021-11-17 02:29:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure calc_discard_block_range [2021-11-17 02:29:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_discard_block_range [2021-11-17 02:29:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-11-17 02:29:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-11-17 02:29:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release_no_holder [2021-11-17 02:29:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure free_bitset [2021-11-17 02:29:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bitset [2021-11-17 02:29:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure commit_if_needed [2021-11-17 02:29:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure commit_if_needed [2021-11-17 02:29:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-17 02:29:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-17 02:29:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-17 02:29:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-17 02:29:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data [2021-11-17 02:29:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data [2021-11-17 02:29:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_then_cache [2021-11-17 02:29:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_then_cache [2021-11-17 02:29:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-17 02:29:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-17 02:29:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_remove_mapping [2021-11-17 02:29:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_remove_mapping [2021-11-17 02:29:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure dblock_to_oblock [2021-11-17 02:29:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure dblock_to_oblock [2021-11-17 02:29:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 02:29:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 02:29:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin [2021-11-17 02:29:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin [2021-11-17 02:29:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bitset [2021-11-17 02:29:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bitset [2021-11-17 02:29:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain_range [2021-11-17 02:29:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain_range [2021-11-17 02:29:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure from_cblock [2021-11-17 02:29:13,690 INFO L138 BoogieDeclarations]: Found implementation of procedure from_cblock [2021-11-17 02:29:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure writethrough_mode [2021-11-17 02:29:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure writethrough_mode [2021-11-17 02:29:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure write_dirty_bitset [2021-11-17 02:29:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dirty_bitset [2021-11-17 02:29:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 02:29:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 02:29:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure writeback_mode [2021-11-17 02:29:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure writeback_mode [2021-11-17 02:29:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure cache_postsuspend [2021-11-17 02:29:13,691 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_postsuspend [2021-11-17 02:29:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_migration [2021-11-17 02:29:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_migration [2021-11-17 02:29:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure issue_copy_or_discard [2021-11-17 02:29:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_copy_or_discard [2021-11-17 02:29:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure cache_dtr [2021-11-17 02:29:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_dtr [2021-11-17 02:29:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-17 02:29:13,692 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-17 02:29:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-17 02:29:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_prison_cell [2021-11-17 02:29:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_prison_cell [2021-11-17 02:29:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_version [2021-11-17 02:29:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_version [2021-11-17 02:29:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 02:29:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 02:29:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 02:29:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 02:29:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure __create_persistent_data_objects [2021-11-17 02:29:13,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_persistent_data_objects [2021-11-17 02:29:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 02:29:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data_size [2021-11-17 02:29:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data_size [2021-11-17 02:29:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_resize [2021-11-17 02:29:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_resize [2021-11-17 02:29:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 02:29:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 02:29:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_request [2021-11-17 02:29:13,694 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_request [2021-11-17 02:29:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure pack_value [2021-11-17 02:29:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure pack_value [2021-11-17 02:29:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-17 02:29:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-17 02:29:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2021-11-17 02:29:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2021-11-17 02:29:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 02:29:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure clear_discard [2021-11-17 02:29:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_discard [2021-11-17 02:29:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_cell [2021-11-17 02:29:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_cell [2021-11-17 02:29:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 02:29:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 02:29:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure process_deferred_flush_bios [2021-11-17 02:29:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure process_deferred_flush_bios [2021-11-17 02:29:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure cell_defer [2021-11-17 02:29:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_defer [2021-11-17 02:29:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 02:29:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_commit [2021-11-17 02:29:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_commit [2021-11-17 02:29:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure sb_check [2021-11-17 02:29:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_check [2021-11-17 02:29:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_destroy [2021-11-17 02:29:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_destroy [2021-11-17 02:29:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure cache_device_name [2021-11-17 02:29:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_device_name [2021-11-17 02:29:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 02:29:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure get_policy_once [2021-11-17 02:29:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure get_policy_once [2021-11-17 02:29:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure issue [2021-11-17 02:29:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure issue [2021-11-17 02:29:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 02:29:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 02:29:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure inc_and_issue [2021-11-17 02:29:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_and_issue [2021-11-17 02:29:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure write_discard_bitset [2021-11-17 02:29:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure write_discard_bitset [2021-11-17 02:29:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure sync_metadata [2021-11-17 02:29:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_metadata [2021-11-17 02:29:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-17 02:29:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-17 02:29:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard_range [2021-11-17 02:29:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard_range [2021-11-17 02:29:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure policy_unchanged [2021-11-17 02:29:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_unchanged [2021-11-17 02:29:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-17 02:29:13,700 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-17 02:29:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure set_config_value [2021-11-17 02:29:13,700 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config_value [2021-11-17 02:29:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure stop_worker [2021-11-17 02:29:13,700 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_worker [2021-11-17 02:29:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_12 [2021-11-17 02:29:13,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_12 [2021-11-17 02:29:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 02:29:13,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 02:29:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure policy_force_mapping [2021-11-17 02:29:13,701 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_force_mapping [2021-11-17 02:29:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_clear_discard [2021-11-17 02:29:13,701 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_clear_discard [2021-11-17 02:29:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure __save_sm_root [2021-11-17 02:29:13,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __save_sm_root [2021-11-17 02:29:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 02:29:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-11-17 02:29:13,701 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-11-17 02:29:13,701 INFO L130 BoogieDeclarations]: Found specification of procedure blocks_are_unmapped_or_clean [2021-11-17 02:29:13,701 INFO L138 BoogieDeclarations]: Found implementation of procedure blocks_are_unmapped_or_clean [2021-11-17 02:29:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-17 02:29:13,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-17 02:29:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 02:29:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure do_worker [2021-11-17 02:29:13,702 INFO L138 BoogieDeclarations]: Found implementation of procedure do_worker [2021-11-17 02:29:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-11-17 02:29:13,702 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-11-17 02:29:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure build_key [2021-11-17 02:29:13,702 INFO L138 BoogieDeclarations]: Found implementation of procedure build_key [2021-11-17 02:29:13,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 02:29:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 02:29:13,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 02:29:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure write_hints [2021-11-17 02:29:13,703 INFO L138 BoogieDeclarations]: Found implementation of procedure write_hints [2021-11-17 02:29:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-11-17 02:29:13,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-11-17 02:29:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure __find_policy [2021-11-17 02:29:13,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_policy [2021-11-17 02:29:13,703 INFO L130 BoogieDeclarations]: Found specification of procedure policy_tick [2021-11-17 02:29:13,704 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_tick [2021-11-17 02:29:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure cache_resume [2021-11-17 02:29:13,704 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_resume [2021-11-17 02:29:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-11-17 02:29:13,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-11-17 02:29:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_close [2021-11-17 02:29:13,704 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_close [2021-11-17 02:29:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_hint_size [2021-11-17 02:29:13,704 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_hint_size [2021-11-17 02:29:13,704 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-17 02:29:13,705 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-17 02:29:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_pop [2021-11-17 02:29:13,705 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_pop [2021-11-17 02:29:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure free_migration [2021-11-17 02:29:13,705 INFO L138 BoogieDeclarations]: Found implementation of procedure free_migration [2021-11-17 02:29:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 02:29:13,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 02:29:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure passthrough_mode [2021-11-17 02:29:13,705 INFO L138 BoogieDeclarations]: Found implementation of procedure passthrough_mode [2021-11-17 02:29:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure get_cache_mode [2021-11-17 02:29:13,706 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cache_mode [2021-11-17 02:29:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure to_cblock [2021-11-17 02:29:13,706 INFO L138 BoogieDeclarations]: Found implementation of procedure to_cblock [2021-11-17 02:29:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure cache_iterate_devices [2021-11-17 02:29:13,706 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_iterate_devices [2021-11-17 02:29:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure to_oblock [2021-11-17 02:29:13,706 INFO L138 BoogieDeclarations]: Found implementation of procedure to_oblock [2021-11-17 02:29:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-11-17 02:29:13,706 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-11-17 02:29:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure block_div [2021-11-17 02:29:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure block_div [2021-11-17 02:29:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-17 02:29:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-17 02:29:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 02:29:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 02:29:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure oblocks_per_dblock [2021-11-17 02:29:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure oblocks_per_dblock [2021-11-17 02:29:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure policy_set_dirty [2021-11-17 02:29:13,707 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_set_dirty [2021-11-17 02:29:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_size [2021-11-17 02:29:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_size [2021-11-17 02:29:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure cache_message [2021-11-17 02:29:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_message [2021-11-17 02:29:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-17 02:29:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-17 02:29:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure inc_ds [2021-11-17 02:29:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_ds [2021-11-17 02:29:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 02:29:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 02:29:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure inc_hit_counter [2021-11-17 02:29:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_hit_counter [2021-11-17 02:29:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 02:29:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 02:29:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_11 [2021-11-17 02:29:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_11 [2021-11-17 02:29:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_visit_release [2021-11-17 02:29:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cell_visit_release [2021-11-17 02:29:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure commit [2021-11-17 02:29:13,709 INFO L138 BoogieDeclarations]: Found implementation of procedure commit [2021-11-17 02:29:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-11-17 02:29:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-11-17 02:29:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure cache_io_hints [2021-11-17 02:29:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_io_hints [2021-11-17 02:29:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure cache_end_io [2021-11-17 02:29:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_end_io [2021-11-17 02:29:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_begin [2021-11-17 02:29:13,710 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_begin [2021-11-17 02:29:13,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 02:29:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 02:29:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 02:29:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 02:29:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_abort [2021-11-17 02:29:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_abort [2021-11-17 02:29:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure read_superblock_fields [2021-11-17 02:29:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure read_superblock_fields [2021-11-17 02:29:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2021-11-17 02:29:13,711 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2021-11-17 02:29:13,711 INFO L130 BoogieDeclarations]: Found specification of procedure inc_miss_counter [2021-11-17 02:29:13,712 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_miss_counter [2021-11-17 02:29:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure migration_failure [2021-11-17 02:29:13,712 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_failure [2021-11-17 02:29:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure dm_hook_bio [2021-11-17 02:29:13,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_hook_bio [2021-11-17 02:29:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_set_value [2021-11-17 02:29:13,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_set_value [2021-11-17 02:29:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure free_io_migration [2021-11-17 02:29:13,712 INFO L138 BoogieDeclarations]: Found implementation of procedure free_io_migration [2021-11-17 02:29:13,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-17 02:29:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-17 02:29:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure do_waker [2021-11-17 02:29:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure do_waker [2021-11-17 02:29:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_size [2021-11-17 02:29:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_size [2021-11-17 02:29:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure is_discarded_oblock [2021-11-17 02:29:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure is_discarded_oblock [2021-11-17 02:29:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bitset [2021-11-17 02:29:13,713 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bitset [2021-11-17 02:29:13,713 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 02:29:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 02:29:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure __setup_mapping_info [2021-11-17 02:29:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __setup_mapping_info [2021-11-17 02:29:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 02:29:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 02:29:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-17 02:29:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-17 02:29:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure bitset_size_in_bytes [2021-11-17 02:29:13,714 INFO L138 BoogieDeclarations]: Found implementation of procedure bitset_size_in_bytes [2021-11-17 02:29:13,714 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-17 02:29:13,715 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-17 02:29:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 02:29:13,715 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 02:29:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_is_read_only [2021-11-17 02:29:13,715 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_is_read_only [2021-11-17 02:29:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 02:29:13,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 02:29:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_location [2021-11-17 02:29:13,715 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_location [2021-11-17 02:29:13,715 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2021-11-17 02:29:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2021-11-17 02:29:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dirty [2021-11-17 02:29:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dirty [2021-11-17 02:29:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_copy [2021-11-17 02:29:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_copy [2021-11-17 02:29:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-17 02:29:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-17 02:29:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure quiesce_migration [2021-11-17 02:29:13,716 INFO L138 BoogieDeclarations]: Found implementation of procedure quiesce_migration [2021-11-17 02:29:13,716 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2021-11-17 02:29:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2021-11-17 02:29:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2021-11-17 02:29:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2021-11-17 02:29:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2021-11-17 02:29:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2021-11-17 02:29:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-17 02:29:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-17 02:29:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 02:29:13,717 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 02:29:13,717 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 02:29:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-11-17 02:29:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-11-17 02:29:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure free_prison_cell [2021-11-17 02:29:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure free_prison_cell [2021-11-17 02:29:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 02:29:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure __format_metadata [2021-11-17 02:29:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __format_metadata [2021-11-17 02:29:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-17 02:29:13,718 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-17 02:29:13,718 INFO L130 BoogieDeclarations]: Found specification of procedure discard_or_flush [2021-11-17 02:29:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure discard_or_flush [2021-11-17 02:29:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_data_structs [2021-11-17 02:29:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_data_structs [2021-11-17 02:29:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-11-17 02:29:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-11-17 02:29:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure unpack_value [2021-11-17 02:29:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure unpack_value [2021-11-17 02:29:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_destroy [2021-11-17 02:29:13,719 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_destroy [2021-11-17 02:29:13,719 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_read_lock [2021-11-17 02:29:13,720 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_read_lock [2021-11-17 02:29:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 02:29:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_data [2021-11-17 02:29:13,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_data [2021-11-17 02:29:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure from_dblock [2021-11-17 02:29:13,720 INFO L138 BoogieDeclarations]: Found implementation of procedure from_dblock [2021-11-17 02:29:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 02:29:13,720 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 02:29:13,720 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-17 02:29:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-17 02:29:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 02:29:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 02:29:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure cache_bvec_merge [2021-11-17 02:29:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_bvec_merge [2021-11-17 02:29:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-17 02:29:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-17 02:29:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 02:29:13,721 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 02:29:13,721 INFO L130 BoogieDeclarations]: Found specification of procedure is_dirty [2021-11-17 02:29:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure is_dirty [2021-11-17 02:29:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure __open_or_format_metadata [2021-11-17 02:29:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_or_format_metadata [2021-11-17 02:29:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2021-11-17 02:29:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2021-11-17 02:29:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-17 02:29:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-17 02:29:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_get_value [2021-11-17 02:29:13,722 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_get_value [2021-11-17 02:29:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_empty [2021-11-17 02:29:13,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_empty [2021-11-17 02:29:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure set_dirty [2021-11-17 02:29:13,723 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dirty [2021-11-17 02:29:13,727 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2021-11-17 02:29:13,727 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2021-11-17 02:29:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_walk [2021-11-17 02:29:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_walk [2021-11-17 02:29:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-17 02:29:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-17 02:29:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_cache [2021-11-17 02:29:13,728 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_cache [2021-11-17 02:29:13,728 INFO L130 BoogieDeclarations]: Found specification of procedure oblock_to_dblock [2021-11-17 02:29:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure oblock_to_dblock [2021-11-17 02:29:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure wake_worker [2021-11-17 02:29:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_worker [2021-11-17 02:29:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_free_structs [2021-11-17 02:29:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_free_structs [2021-11-17 02:29:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure dm_disk_bitset_init [2021-11-17 02:29:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_disk_bitset_init [2021-11-17 02:29:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard [2021-11-17 02:29:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard [2021-11-17 02:29:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure get_bio_block [2021-11-17 02:29:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bio_block [2021-11-17 02:29:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure destroy [2021-11-17 02:29:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy [2021-11-17 02:29:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_read_lock [2021-11-17 02:29:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_read_lock [2021-11-17 02:29:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 02:29:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 02:29:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release [2021-11-17 02:29:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure is_quiescing [2021-11-17 02:29:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quiescing [2021-11-17 02:29:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 02:29:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 02:29:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure abort_transaction [2021-11-17 02:29:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure abort_transaction [2021-11-17 02:29:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 02:29:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_mode [2021-11-17 02:29:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_mode [2021-11-17 02:29:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_info_init [2021-11-17 02:29:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_info_init [2021-11-17 02:29:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 02:29:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 02:29:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure from_oblock [2021-11-17 02:29:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure from_oblock [2021-11-17 02:29:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 02:29:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 02:29:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_lock [2021-11-17 02:29:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_lock [2021-11-17 02:29:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_copy [2021-11-17 02:29:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_copy [2021-11-17 02:29:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-17 02:29:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-17 02:29:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_name [2021-11-17 02:29:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_name [2021-11-17 02:29:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure spare_migration_bandwidth [2021-11-17 02:29:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure spare_migration_bandwidth [2021-11-17 02:29:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_add [2021-11-17 02:29:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_add [2021-11-17 02:29:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_cache_dirty [2021-11-17 02:29:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_cache_dirty [2021-11-17 02:29:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_put_cell [2021-11-17 02:29:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_put_cell [2021-11-17 02:29:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-17 02:29:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-11-17 02:29:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure defer_bio [2021-11-17 02:29:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure defer_bio [2021-11-17 02:29:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_operation_failed [2021-11-17 02:29:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_operation_failed [2021-11-17 02:29:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-17 02:29:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-17 02:29:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2021-11-17 02:29:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2021-11-17 02:29:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_requests [2021-11-17 02:29:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_requests [2021-11-17 02:29:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-17 02:29:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-17 02:29:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2021-11-17 02:29:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2021-11-17 02:29:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure policy_remove_mapping [2021-11-17 02:29:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_remove_mapping [2021-11-17 02:29:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure to_dblock [2021-11-17 02:29:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure to_dblock [2021-11-17 02:29:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-17 02:29:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-17 02:29:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain [2021-11-17 02:29:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain [2021-11-17 02:29:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-11-17 02:29:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-11-17 02:29:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure at_least_one_arg [2021-11-17 02:29:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure at_least_one_arg [2021-11-17 02:29:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure __queue_quiesced_migration [2021-11-17 02:29:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __queue_quiesced_migration [2021-11-17 02:29:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure inc_io_migrations [2021-11-17 02:29:13,737 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_io_migrations [2021-11-17 02:29:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2021-11-17 02:29:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure policy_map [2021-11-17 02:29:13,737 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_map [2021-11-17 02:29:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_prison_free_cell [2021-11-17 02:29:13,737 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_prison_free_cell [2021-11-17 02:29:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_destroy [2021-11-17 02:29:13,737 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_destroy [2021-11-17 02:29:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure complete_migration [2021-11-17 02:29:13,737 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_migration [2021-11-17 02:29:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 02:29:13,738 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 02:29:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 02:29:13,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 02:29:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure __destroy_persistent_data_objects [2021-11-17 02:29:13,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __destroy_persistent_data_objects [2021-11-17 02:29:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure lookup [2021-11-17 02:29:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup [2021-11-17 02:29:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_request [2021-11-17 02:29:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_request [2021-11-17 02:29:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure migration_success_pre_commit [2021-11-17 02:29:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_success_pre_commit [2021-11-17 02:29:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 02:29:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure cache_status [2021-11-17 02:29:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_status [2021-11-17 02:29:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_unlock [2021-11-17 02:29:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_unlock [2021-11-17 02:29:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2021-11-17 02:29:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2021-11-17 02:29:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-17 02:29:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-11-17 02:29:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-11-17 02:29:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure process_cell [2021-11-17 02:29:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cell [2021-11-17 02:29:14,789 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 02:29:14,794 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 02:29:15,318 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 02:29:24,937 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 02:29:24,957 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 02:29:24,957 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 02:29:24,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:29:24 BoogieIcfgContainer [2021-11-17 02:29:24,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 02:29:24,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 02:29:24,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 02:29:24,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 02:29:24,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 02:29:09" (1/3) ... [2021-11-17 02:29:24,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2743c830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:29:24, skipping insertion in model container [2021-11-17 02:29:24,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:29:12" (2/3) ... [2021-11-17 02:29:24,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2743c830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:29:24, skipping insertion in model container [2021-11-17 02:29:24,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 02:29:24" (3/3) ... [2021-11-17 02:29:24,968 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-11-17 02:29:24,973 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 02:29:24,974 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 02:29:25,024 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 02:29:25,033 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 02:29:25,034 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 02:29:25,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 3864 states, 2495 states have (on average 1.2749498997995992) internal successors, (3181), 2578 states have internal predecessors, (3181), 1124 states have call successors, (1124), 244 states have call predecessors, (1124), 243 states have return successors, (1118), 1089 states have call predecessors, (1118), 1118 states have call successors, (1118) [2021-11-17 02:29:25,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-17 02:29:25,118 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:29:25,118 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:29:25,119 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:29:25,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:29:25,122 INFO L85 PathProgramCache]: Analyzing trace with hash -901261265, now seen corresponding path program 1 times [2021-11-17 02:29:25,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:29:25,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476462670] [2021-11-17 02:29:25,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:29:25,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:29:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:29:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:29:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:29:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:29:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:29:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:29:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:29:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:29:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:29:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:25,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:29:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 02:29:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 02:29:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 02:29:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 02:29:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 02:29:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 02:29:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 02:29:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:26,163 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 02:29:26,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:29:26,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476462670] [2021-11-17 02:29:26,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476462670] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:29:26,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:29:26,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 02:29:26,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915201589] [2021-11-17 02:29:26,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:29:26,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 02:29:26,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:29:26,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 02:29:26,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 02:29:26,196 INFO L87 Difference]: Start difference. First operand has 3864 states, 2495 states have (on average 1.2749498997995992) internal successors, (3181), 2578 states have internal predecessors, (3181), 1124 states have call successors, (1124), 244 states have call predecessors, (1124), 243 states have return successors, (1118), 1089 states have call predecessors, (1118), 1118 states have call successors, (1118) Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 02:29:28,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:29:37,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:29:39,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:29:39,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:29:39,905 INFO L93 Difference]: Finished difference Result 8414 states and 12295 transitions. [2021-11-17 02:29:39,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 02:29:39,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 253 [2021-11-17 02:29:39,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:29:39,951 INFO L225 Difference]: With dead ends: 8414 [2021-11-17 02:29:39,952 INFO L226 Difference]: Without dead ends: 4534 [2021-11-17 02:29:39,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:29:39,987 INFO L933 BasicCegarLoop]: 4907 mSDtfsCounter, 4314 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 5018 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4419 SdHoareTripleChecker+Valid, 7060 SdHoareTripleChecker+Invalid, 7310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5018 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:29:39,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4419 Valid, 7060 Invalid, 7310 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5018 Valid, 2290 Invalid, 2 Unknown, 0 Unchecked, 13.2s Time] [2021-11-17 02:29:40,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4534 states. [2021-11-17 02:29:40,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4534 to 3843. [2021-11-17 02:29:40,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3843 states, 2482 states have (on average 1.2695406929895245) internal successors, (3151), 2557 states have internal predecessors, (3151), 1118 states have call successors, (1118), 243 states have call predecessors, (1118), 242 states have return successors, (1116), 1087 states have call predecessors, (1116), 1116 states have call successors, (1116) [2021-11-17 02:29:40,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 5385 transitions. [2021-11-17 02:29:40,219 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 5385 transitions. Word has length 253 [2021-11-17 02:29:40,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:29:40,220 INFO L470 AbstractCegarLoop]: Abstraction has 3843 states and 5385 transitions. [2021-11-17 02:29:40,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 02:29:40,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 5385 transitions. [2021-11-17 02:29:40,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-17 02:29:40,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:29:40,225 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:29:40,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 02:29:40,226 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:29:40,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:29:40,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1699436963, now seen corresponding path program 1 times [2021-11-17 02:29:40,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:29:40,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738742352] [2021-11-17 02:29:40,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:29:40,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:29:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:29:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:29:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:29:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:29:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:29:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:29:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:29:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:29:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:29:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:29:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 02:29:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 02:29:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 02:29:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 02:29:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 02:29:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 02:29:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 02:29:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 02:29:40,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:29:40,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738742352] [2021-11-17 02:29:40,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738742352] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:29:40,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:29:40,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:29:40,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953288069] [2021-11-17 02:29:40,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:29:40,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:29:40,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:29:40,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:29:40,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:29:40,776 INFO L87 Difference]: Start difference. First operand 3843 states and 5385 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 02:29:42,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:29:56,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:29:57,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:29:58,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:29:58,683 INFO L93 Difference]: Finished difference Result 12831 states and 18518 transitions. [2021-11-17 02:29:58,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:29:58,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 253 [2021-11-17 02:29:58,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:29:58,736 INFO L225 Difference]: With dead ends: 12831 [2021-11-17 02:29:58,736 INFO L226 Difference]: Without dead ends: 9021 [2021-11-17 02:29:58,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:29:58,759 INFO L933 BasicCegarLoop]: 6152 mSDtfsCounter, 13119 mSDsluCounter, 6778 mSDsCounter, 0 mSdLazyCounter, 5130 mSolverCounterSat, 10709 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13831 SdHoareTripleChecker+Valid, 12930 SdHoareTripleChecker+Invalid, 15840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10709 IncrementalHoareTripleChecker+Valid, 5130 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-11-17 02:29:58,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13831 Valid, 12930 Invalid, 15840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10709 Valid, 5130 Invalid, 1 Unknown, 0 Unchecked, 17.3s Time] [2021-11-17 02:29:58,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9021 states. [2021-11-17 02:29:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9021 to 7636. [2021-11-17 02:29:59,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7636 states, 4935 states have (on average 1.2705167173252279) internal successors, (6270), 5084 states have internal predecessors, (6270), 2216 states have call successors, (2216), 485 states have call predecessors, (2216), 484 states have return successors, (2216), 2156 states have call predecessors, (2216), 2214 states have call successors, (2216) [2021-11-17 02:29:59,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7636 states to 7636 states and 10702 transitions. [2021-11-17 02:29:59,080 INFO L78 Accepts]: Start accepts. Automaton has 7636 states and 10702 transitions. Word has length 253 [2021-11-17 02:29:59,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:29:59,083 INFO L470 AbstractCegarLoop]: Abstraction has 7636 states and 10702 transitions. [2021-11-17 02:29:59,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 02:29:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand 7636 states and 10702 transitions. [2021-11-17 02:29:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-17 02:29:59,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:29:59,092 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-11-17 02:29:59,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 02:29:59,093 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:29:59,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:29:59,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1091692974, now seen corresponding path program 1 times [2021-11-17 02:29:59,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:29:59,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324889835] [2021-11-17 02:29:59,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:29:59,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:29:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:29:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:29:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:29:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:29:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:29:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:29:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:29:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:29:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:29:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:29:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 02:29:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 02:29:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 02:29:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 02:29:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 02:29:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 02:29:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 02:29:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 02:29:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 02:29:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:29:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 02:29:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:29:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:29:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 02:29:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 02:29:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:29:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-11-17 02:29:59,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:29:59,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324889835] [2021-11-17 02:29:59,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324889835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:29:59,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:29:59,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 02:29:59,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477825655] [2021-11-17 02:29:59,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:29:59,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 02:29:59,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:29:59,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 02:29:59,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:29:59,728 INFO L87 Difference]: Start difference. First operand 7636 states and 10702 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (35), 8 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 02:30:01,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:30:14,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:30:30,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:30:32,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:30:32,232 INFO L93 Difference]: Finished difference Result 26594 states and 38841 transitions. [2021-11-17 02:30:32,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 02:30:32,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (35), 8 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 335 [2021-11-17 02:30:32,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:30:32,344 INFO L225 Difference]: With dead ends: 26594 [2021-11-17 02:30:32,344 INFO L226 Difference]: Without dead ends: 18997 [2021-11-17 02:30:32,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2021-11-17 02:30:32,377 INFO L933 BasicCegarLoop]: 5625 mSDtfsCounter, 13318 mSDsluCounter, 7496 mSDsCounter, 0 mSdLazyCounter, 9879 mSolverCounterSat, 12880 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14469 SdHoareTripleChecker+Valid, 13121 SdHoareTripleChecker+Invalid, 22760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12880 IncrementalHoareTripleChecker+Valid, 9879 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:30:32,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14469 Valid, 13121 Invalid, 22760 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12880 Valid, 9879 Invalid, 1 Unknown, 0 Unchecked, 31.2s Time] [2021-11-17 02:30:32,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18997 states. [2021-11-17 02:30:33,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18997 to 13073. [2021-11-17 02:30:33,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13073 states, 8382 states have (on average 1.2581722739203054) internal successors, (10546), 8675 states have internal predecessors, (10546), 3781 states have call successors, (3781), 909 states have call predecessors, (3781), 909 states have return successors, (3783), 3662 states have call predecessors, (3783), 3779 states have call successors, (3783) [2021-11-17 02:30:33,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13073 states to 13073 states and 18110 transitions. [2021-11-17 02:30:33,179 INFO L78 Accepts]: Start accepts. Automaton has 13073 states and 18110 transitions. Word has length 335 [2021-11-17 02:30:33,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:30:33,180 INFO L470 AbstractCegarLoop]: Abstraction has 13073 states and 18110 transitions. [2021-11-17 02:30:33,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (35), 8 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 02:30:33,181 INFO L276 IsEmpty]: Start isEmpty. Operand 13073 states and 18110 transitions. [2021-11-17 02:30:33,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-11-17 02:30:33,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:30:33,188 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-11-17 02:30:33,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 02:30:33,188 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:30:33,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:30:33,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1123739714, now seen corresponding path program 1 times [2021-11-17 02:30:33,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:30:33,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326864061] [2021-11-17 02:30:33,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:30:33,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:30:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:30:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:30:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:30:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:30:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:30:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:30:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:30:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:30:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:30:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:30:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 02:30:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 02:30:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 02:30:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 02:30:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 02:30:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 02:30:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 02:30:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 02:30:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-17 02:30:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 02:30:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-17 02:30:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 02:30:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 02:30:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 02:30:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 02:30:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:33,788 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 02:30:33,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:30:33,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326864061] [2021-11-17 02:30:33,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326864061] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:30:33,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195597545] [2021-11-17 02:30:33,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:30:33,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:30:33,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:30:33,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:30:33,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 02:30:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:35,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 3536 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-17 02:30:35,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:30:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-11-17 02:30:35,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:30:35,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195597545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:30:35,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:30:35,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2021-11-17 02:30:35,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650804130] [2021-11-17 02:30:35,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:30:35,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 02:30:35,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:30:35,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 02:30:35,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:30:35,526 INFO L87 Difference]: Start difference. First operand 13073 states and 18110 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 02:30:36,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:30:36,221 INFO L93 Difference]: Finished difference Result 26219 states and 36640 transitions. [2021-11-17 02:30:36,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 02:30:36,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 327 [2021-11-17 02:30:36,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:30:36,281 INFO L225 Difference]: With dead ends: 26219 [2021-11-17 02:30:36,282 INFO L226 Difference]: Without dead ends: 13185 [2021-11-17 02:30:36,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:30:36,337 INFO L933 BasicCegarLoop]: 5380 mSDtfsCounter, 22 mSDsluCounter, 16111 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 21491 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 02:30:36,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 21491 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 02:30:36,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13185 states. [2021-11-17 02:30:36,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13185 to 13185. [2021-11-17 02:30:36,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13185 states, 8458 states have (on average 1.25632537242847) internal successors, (10626), 8751 states have internal predecessors, (10626), 3809 states have call successors, (3809), 917 states have call predecessors, (3809), 917 states have return successors, (3811), 3690 states have call predecessors, (3811), 3807 states have call successors, (3811) [2021-11-17 02:30:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13185 states to 13185 states and 18246 transitions. [2021-11-17 02:30:37,025 INFO L78 Accepts]: Start accepts. Automaton has 13185 states and 18246 transitions. Word has length 327 [2021-11-17 02:30:37,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:30:37,028 INFO L470 AbstractCegarLoop]: Abstraction has 13185 states and 18246 transitions. [2021-11-17 02:30:37,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 02:30:37,029 INFO L276 IsEmpty]: Start isEmpty. Operand 13185 states and 18246 transitions. [2021-11-17 02:30:37,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-11-17 02:30:37,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:30:37,041 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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] [2021-11-17 02:30:37,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 02:30:37,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:30:37,250 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:30:37,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:30:37,251 INFO L85 PathProgramCache]: Analyzing trace with hash 178096419, now seen corresponding path program 1 times [2021-11-17 02:30:37,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:30:37,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519572639] [2021-11-17 02:30:37,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:30:37,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:30:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:30:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:30:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:30:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:30:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:30:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:30:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:30:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:30:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:30:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:30:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 02:30:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 02:30:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 02:30:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 02:30:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 02:30:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 02:30:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 02:30:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 02:30:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 02:30:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 02:30:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 02:30:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 02:30:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 02:30:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 02:30:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 02:30:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 02:30:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-17 02:30:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-17 02:30:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-11-17 02:30:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 02:30:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2021-11-17 02:30:37,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:30:37,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519572639] [2021-11-17 02:30:37,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519572639] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:30:37,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063060911] [2021-11-17 02:30:37,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:30:37,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:30:37,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:30:37,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:30:37,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 02:30:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:39,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 3784 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-17 02:30:39,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:30:39,660 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2021-11-17 02:30:39,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:30:39,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063060911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:30:39,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:30:39,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2021-11-17 02:30:39,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424912494] [2021-11-17 02:30:39,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:30:39,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 02:30:39,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:30:39,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 02:30:39,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:30:39,663 INFO L87 Difference]: Start difference. First operand 13185 states and 18246 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 02:30:40,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:30:40,433 INFO L93 Difference]: Finished difference Result 26463 states and 36968 transitions. [2021-11-17 02:30:40,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 02:30:40,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 362 [2021-11-17 02:30:40,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:30:40,490 INFO L225 Difference]: With dead ends: 26463 [2021-11-17 02:30:40,491 INFO L226 Difference]: Without dead ends: 13317 [2021-11-17 02:30:40,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:30:40,541 INFO L933 BasicCegarLoop]: 5381 mSDtfsCounter, 25 mSDsluCounter, 16117 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 21498 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 02:30:40,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 21498 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 02:30:40,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13317 states. [2021-11-17 02:30:41,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13317 to 13309. [2021-11-17 02:30:41,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13309 states, 8542 states have (on average 1.2552095527979397) internal successors, (10722), 8835 states have internal predecessors, (10722), 3841 states have call successors, (3841), 925 states have call predecessors, (3841), 925 states have return successors, (3855), 3722 states have call predecessors, (3855), 3839 states have call successors, (3855) [2021-11-17 02:30:41,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13309 states to 13309 states and 18418 transitions. [2021-11-17 02:30:41,255 INFO L78 Accepts]: Start accepts. Automaton has 13309 states and 18418 transitions. Word has length 362 [2021-11-17 02:30:41,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:30:41,256 INFO L470 AbstractCegarLoop]: Abstraction has 13309 states and 18418 transitions. [2021-11-17 02:30:41,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-17 02:30:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 13309 states and 18418 transitions. [2021-11-17 02:30:41,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-11-17 02:30:41,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:30:41,266 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:30:41,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 02:30:41,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:30:41,490 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:30:41,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:30:41,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1251783846, now seen corresponding path program 1 times [2021-11-17 02:30:41,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:30:41,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053595350] [2021-11-17 02:30:41,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:30:41,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:30:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:30:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:30:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:30:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:30:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:30:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:30:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:30:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:30:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:30:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:30:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 02:30:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 02:30:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 02:30:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 02:30:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 02:30:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 02:30:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 02:30:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 02:30:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 02:30:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 02:30:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-17 02:30:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 02:30:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:42,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:42,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:30:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:42,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 02:30:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:42,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:42,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 02:30:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:42,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 02:30:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-11-17 02:30:42,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:30:42,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053595350] [2021-11-17 02:30:42,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053595350] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:30:42,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661908526] [2021-11-17 02:30:42,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:30:42,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:30:42,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:30:42,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:30:42,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 02:30:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:43,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 4175 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 02:30:43,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:30:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2021-11-17 02:30:43,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:30:43,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661908526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:30:43,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:30:43,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2021-11-17 02:30:43,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591047993] [2021-11-17 02:30:43,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:30:43,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 02:30:43,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:30:43,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 02:30:43,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-17 02:30:43,760 INFO L87 Difference]: Start difference. First operand 13309 states and 18418 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 02:30:44,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:30:44,665 INFO L93 Difference]: Finished difference Result 32840 states and 45410 transitions. [2021-11-17 02:30:44,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 02:30:44,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 393 [2021-11-17 02:30:44,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:30:44,743 INFO L225 Difference]: With dead ends: 32840 [2021-11-17 02:30:44,743 INFO L226 Difference]: Without dead ends: 19570 [2021-11-17 02:30:44,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-17 02:30:44,787 INFO L933 BasicCegarLoop]: 7285 mSDtfsCounter, 4966 mSDsluCounter, 4470 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4966 SdHoareTripleChecker+Valid, 11755 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:30:44,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4966 Valid, 11755 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 02:30:44,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19570 states. [2021-11-17 02:30:45,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19570 to 19556. [2021-11-17 02:30:45,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19556 states, 12590 states have (on average 1.253296266878475) internal successors, (15779), 13030 states have internal predecessors, (15779), 5582 states have call successors, (5582), 1383 states have call predecessors, (5582), 1383 states have return successors, (5602), 5404 states have call predecessors, (5602), 5580 states have call successors, (5602) [2021-11-17 02:30:45,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19556 states to 19556 states and 26963 transitions. [2021-11-17 02:30:45,678 INFO L78 Accepts]: Start accepts. Automaton has 19556 states and 26963 transitions. Word has length 393 [2021-11-17 02:30:45,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:30:45,679 INFO L470 AbstractCegarLoop]: Abstraction has 19556 states and 26963 transitions. [2021-11-17 02:30:45,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-17 02:30:45,679 INFO L276 IsEmpty]: Start isEmpty. Operand 19556 states and 26963 transitions. [2021-11-17 02:30:45,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-11-17 02:30:45,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:30:45,694 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:30:45,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-17 02:30:45,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:30:45,918 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:30:45,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:30:45,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2111277653, now seen corresponding path program 1 times [2021-11-17 02:30:45,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:30:45,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215622053] [2021-11-17 02:30:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:30:45,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:30:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:30:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:30:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:30:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:30:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:30:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:30:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:30:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:30:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:30:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:30:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 02:30:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 02:30:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 02:30:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 02:30:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 02:30:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 02:30:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 02:30:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 02:30:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 02:30:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 02:30:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 02:30:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-17 02:30:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 02:30:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:30:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 02:30:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 02:30:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 02:30:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:46,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1042 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 1034 trivial. 0 not checked. [2021-11-17 02:30:46,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:30:46,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215622053] [2021-11-17 02:30:46,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215622053] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:30:46,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50159236] [2021-11-17 02:30:46,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:30:46,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:30:46,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:30:46,444 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:30:46,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 02:30:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:47,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 4333 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 02:30:47,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:30:48,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1042 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1036 trivial. 0 not checked. [2021-11-17 02:30:48,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:30:48,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50159236] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:30:48,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:30:48,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2021-11-17 02:30:48,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283979453] [2021-11-17 02:30:48,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:30:48,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 02:30:48,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:30:48,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 02:30:48,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-17 02:30:48,222 INFO L87 Difference]: Start difference. First operand 19556 states and 26963 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 02:30:49,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:30:49,712 INFO L93 Difference]: Finished difference Result 45246 states and 62384 transitions. [2021-11-17 02:30:49,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 02:30:49,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 418 [2021-11-17 02:30:49,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:30:49,934 INFO L225 Difference]: With dead ends: 45246 [2021-11-17 02:30:49,935 INFO L226 Difference]: Without dead ends: 25729 [2021-11-17 02:30:49,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-17 02:30:49,980 INFO L933 BasicCegarLoop]: 6596 mSDtfsCounter, 5008 mSDsluCounter, 4454 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5008 SdHoareTripleChecker+Valid, 11050 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:30:49,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5008 Valid, 11050 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 02:30:49,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25729 states. [2021-11-17 02:30:51,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25729 to 25715. [2021-11-17 02:30:51,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25715 states, 16578 states have (on average 1.2533478103510676) internal successors, (20778), 17165 states have internal predecessors, (20778), 7303 states have call successors, (7303), 1833 states have call predecessors, (7303), 1833 states have return successors, (7329), 7066 states have call predecessors, (7329), 7301 states have call successors, (7329) [2021-11-17 02:30:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25715 states to 25715 states and 35410 transitions. [2021-11-17 02:30:51,127 INFO L78 Accepts]: Start accepts. Automaton has 25715 states and 35410 transitions. Word has length 418 [2021-11-17 02:30:51,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:30:51,129 INFO L470 AbstractCegarLoop]: Abstraction has 25715 states and 35410 transitions. [2021-11-17 02:30:51,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-17 02:30:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 25715 states and 35410 transitions. [2021-11-17 02:30:51,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-17 02:30:51,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:30:51,144 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-17 02:30:51,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-17 02:30:51,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:30:51,360 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:30:51,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:30:51,360 INFO L85 PathProgramCache]: Analyzing trace with hash -870746568, now seen corresponding path program 1 times [2021-11-17 02:30:51,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:30:51,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568713263] [2021-11-17 02:30:51,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:30:51,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:30:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:30:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:30:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:30:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:30:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:30:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:30:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:30:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:30:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:30:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:30:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 02:30:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 02:30:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 02:30:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 02:30:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 02:30:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 02:30:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 02:30:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 02:30:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 02:30:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 02:30:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 02:30:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 02:30:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:30:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:30:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 02:30:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 02:30:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:51,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 1031 trivial. 0 not checked. [2021-11-17 02:30:51,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:30:51,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568713263] [2021-11-17 02:30:51,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568713263] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:30:51,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141583608] [2021-11-17 02:30:51,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:30:51,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:30:51,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:30:51,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:30:51,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-17 02:30:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:30:53,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 3888 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 02:30:53,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:30:53,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2021-11-17 02:30:53,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:30:53,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141583608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:30:53,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:30:53,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 10 [2021-11-17 02:30:53,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419114762] [2021-11-17 02:30:53,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:30:53,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 02:30:53,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:30:53,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 02:30:53,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:30:53,603 INFO L87 Difference]: Start difference. First operand 25715 states and 35410 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 02:30:55,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:30:57,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:30:57,820 INFO L93 Difference]: Finished difference Result 64195 states and 88358 transitions. [2021-11-17 02:30:57,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 02:30:57,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 414 [2021-11-17 02:30:57,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:30:58,006 INFO L225 Difference]: With dead ends: 64195 [2021-11-17 02:30:58,007 INFO L226 Difference]: Without dead ends: 38519 [2021-11-17 02:30:58,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-17 02:30:58,119 INFO L933 BasicCegarLoop]: 10147 mSDtfsCounter, 5132 mSDsluCounter, 15306 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 25453 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:30:58,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5132 Valid, 25453 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 02:30:58,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38519 states. [2021-11-17 02:31:00,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38519 to 38503. [2021-11-17 02:31:00,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38503 states, 24793 states have (on average 1.2516032751179769) internal successors, (31031), 25675 states have internal predecessors, (31031), 10957 states have call successors, (10957), 2751 states have call predecessors, (10957), 2752 states have return successors, (10999), 10600 states have call predecessors, (10999), 10955 states have call successors, (10999) [2021-11-17 02:31:00,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38503 states to 38503 states and 52987 transitions. [2021-11-17 02:31:00,282 INFO L78 Accepts]: Start accepts. Automaton has 38503 states and 52987 transitions. Word has length 414 [2021-11-17 02:31:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:31:00,283 INFO L470 AbstractCegarLoop]: Abstraction has 38503 states and 52987 transitions. [2021-11-17 02:31:00,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 02:31:00,283 INFO L276 IsEmpty]: Start isEmpty. Operand 38503 states and 52987 transitions. [2021-11-17 02:31:00,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-11-17 02:31:00,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:31:00,304 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:31:00,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-17 02:31:00,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:31:00,528 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:31:00,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:31:00,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1845655679, now seen corresponding path program 1 times [2021-11-17 02:31:00,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:31:00,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573128864] [2021-11-17 02:31:00,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:00,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:31:00,601 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 02:31:00,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371579782] [2021-11-17 02:31:00,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:00,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:31:00,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:31:00,603 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:31:00,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-17 02:31:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:01,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 3977 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 02:31:01,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:31:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-11-17 02:31:02,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:31:02,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:31:02,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573128864] [2021-11-17 02:31:02,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 02:31:02,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371579782] [2021-11-17 02:31:02,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371579782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:31:02,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:31:02,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-17 02:31:02,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055490543] [2021-11-17 02:31:02,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:31:02,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 02:31:02,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:31:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 02:31:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 02:31:02,355 INFO L87 Difference]: Start difference. First operand 38503 states and 52987 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 02:31:04,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:31:04,863 INFO L93 Difference]: Finished difference Result 80603 states and 111638 transitions. [2021-11-17 02:31:04,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 02:31:04,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 407 [2021-11-17 02:31:04,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:31:05,031 INFO L225 Difference]: With dead ends: 80603 [2021-11-17 02:31:05,031 INFO L226 Difference]: Without dead ends: 42139 [2021-11-17 02:31:05,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 02:31:05,131 INFO L933 BasicCegarLoop]: 6561 mSDtfsCounter, 727 mSDsluCounter, 5598 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 12159 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:31:05,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 12159 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 02:31:05,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42139 states. [2021-11-17 02:31:06,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42139 to 38507. [2021-11-17 02:31:06,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38507 states, 24797 states have (on average 1.2515626890349638) internal successors, (31035), 25679 states have internal predecessors, (31035), 10957 states have call successors, (10957), 2751 states have call predecessors, (10957), 2752 states have return successors, (10999), 10600 states have call predecessors, (10999), 10955 states have call successors, (10999) [2021-11-17 02:31:07,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38507 states to 38507 states and 52991 transitions. [2021-11-17 02:31:07,139 INFO L78 Accepts]: Start accepts. Automaton has 38507 states and 52991 transitions. Word has length 407 [2021-11-17 02:31:07,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:31:07,140 INFO L470 AbstractCegarLoop]: Abstraction has 38507 states and 52991 transitions. [2021-11-17 02:31:07,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 02:31:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 38507 states and 52991 transitions. [2021-11-17 02:31:07,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-17 02:31:07,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:31:07,161 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:31:07,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-17 02:31:07,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:31:07,372 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:31:07,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:31:07,372 INFO L85 PathProgramCache]: Analyzing trace with hash 313485834, now seen corresponding path program 1 times [2021-11-17 02:31:07,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:31:07,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43077672] [2021-11-17 02:31:07,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:07,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:31:07,470 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 02:31:07,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647720471] [2021-11-17 02:31:07,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:07,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:31:07,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:31:07,471 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:31:07,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-17 02:31:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:08,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 4134 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-17 02:31:08,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:31:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1051 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-11-17 02:31:09,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:31:09,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:31:09,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43077672] [2021-11-17 02:31:09,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 02:31:09,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647720471] [2021-11-17 02:31:09,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647720471] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:31:09,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:31:09,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:31:09,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953955658] [2021-11-17 02:31:09,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:31:09,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:31:09,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:31:09,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:31:09,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:31:09,456 INFO L87 Difference]: Start difference. First operand 38507 states and 52991 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 02:31:11,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:31:11,635 INFO L93 Difference]: Finished difference Result 79189 states and 109380 transitions. [2021-11-17 02:31:11,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 02:31:11,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 412 [2021-11-17 02:31:11,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:31:11,792 INFO L225 Difference]: With dead ends: 79189 [2021-11-17 02:31:11,794 INFO L226 Difference]: Without dead ends: 40721 [2021-11-17 02:31:12,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 02:31:12,027 INFO L933 BasicCegarLoop]: 5996 mSDtfsCounter, 1762 mSDsluCounter, 22322 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1814 SdHoareTripleChecker+Valid, 28318 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 02:31:12,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1814 Valid, 28318 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 02:31:12,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40721 states. [2021-11-17 02:31:14,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40721 to 38523. [2021-11-17 02:31:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38523 states, 24813 states have (on average 1.2514004755571677) internal successors, (31051), 25695 states have internal predecessors, (31051), 10957 states have call successors, (10957), 2751 states have call predecessors, (10957), 2752 states have return successors, (10999), 10600 states have call predecessors, (10999), 10955 states have call successors, (10999) [2021-11-17 02:31:14,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38523 states to 38523 states and 53007 transitions. [2021-11-17 02:31:14,291 INFO L78 Accepts]: Start accepts. Automaton has 38523 states and 53007 transitions. Word has length 412 [2021-11-17 02:31:14,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:31:14,292 INFO L470 AbstractCegarLoop]: Abstraction has 38523 states and 53007 transitions. [2021-11-17 02:31:14,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 02:31:14,292 INFO L276 IsEmpty]: Start isEmpty. Operand 38523 states and 53007 transitions. [2021-11-17 02:31:14,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-11-17 02:31:14,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:31:14,311 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:31:14,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-17 02:31:14,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:31:14,528 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:31:14,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:31:14,528 INFO L85 PathProgramCache]: Analyzing trace with hash 152357316, now seen corresponding path program 1 times [2021-11-17 02:31:14,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:31:14,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166773198] [2021-11-17 02:31:14,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:14,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:31:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:31:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:31:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:31:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:31:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:31:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:31:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:31:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:31:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:31:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:31:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 02:31:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 02:31:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 02:31:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 02:31:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 02:31:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 02:31:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 02:31:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:14,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 02:31:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 02:31:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 02:31:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 02:31:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 02:31:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-17 02:31:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-11-17 02:31:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 02:31:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 02:31:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:15,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2021-11-17 02:31:15,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:31:15,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166773198] [2021-11-17 02:31:15,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166773198] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:31:15,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879932735] [2021-11-17 02:31:15,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:15,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:31:15,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:31:15,180 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:31:15,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-17 02:31:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:16,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 4208 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 02:31:16,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:31:17,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1061 trivial. 0 not checked. [2021-11-17 02:31:17,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:31:17,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879932735] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:31:17,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:31:17,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2021-11-17 02:31:17,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630086302] [2021-11-17 02:31:17,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:31:17,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 02:31:17,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:31:17,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 02:31:17,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-11-17 02:31:17,149 INFO L87 Difference]: Start difference. First operand 38523 states and 53007 transitions. Second operand has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-17 02:31:19,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:31:22,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:31:22,245 INFO L93 Difference]: Finished difference Result 90483 states and 124568 transitions. [2021-11-17 02:31:22,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 02:31:22,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 442 [2021-11-17 02:31:22,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:31:22,448 INFO L225 Difference]: With dead ends: 90483 [2021-11-17 02:31:22,448 INFO L226 Difference]: Without dead ends: 51999 [2021-11-17 02:31:22,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=743, Unknown=0, NotChecked=0, Total=870 [2021-11-17 02:31:22,558 INFO L933 BasicCegarLoop]: 10498 mSDtfsCounter, 6808 mSDsluCounter, 56825 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 367 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6860 SdHoareTripleChecker+Valid, 67323 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-17 02:31:22,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6860 Valid, 67323 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 283 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-17 02:31:22,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51999 states. [2021-11-17 02:31:24,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51999 to 38577. [2021-11-17 02:31:24,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38577 states, 24851 states have (on average 1.2514989336445212) internal successors, (31101), 25735 states have internal predecessors, (31101), 10973 states have call successors, (10973), 2751 states have call predecessors, (10973), 2752 states have return successors, (11015), 10614 states have call predecessors, (11015), 10971 states have call successors, (11015) [2021-11-17 02:31:24,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38577 states to 38577 states and 53089 transitions. [2021-11-17 02:31:24,589 INFO L78 Accepts]: Start accepts. Automaton has 38577 states and 53089 transitions. Word has length 442 [2021-11-17 02:31:24,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:31:24,590 INFO L470 AbstractCegarLoop]: Abstraction has 38577 states and 53089 transitions. [2021-11-17 02:31:24,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-17 02:31:24,590 INFO L276 IsEmpty]: Start isEmpty. Operand 38577 states and 53089 transitions. [2021-11-17 02:31:24,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2021-11-17 02:31:24,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:31:24,610 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:31:24,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-17 02:31:24,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-17 02:31:24,836 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:31:24,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:31:24,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1647532043, now seen corresponding path program 1 times [2021-11-17 02:31:24,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:31:24,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454549633] [2021-11-17 02:31:24,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:24,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:31:25,045 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 02:31:25,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044831125] [2021-11-17 02:31:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:25,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:31:25,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:31:25,064 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:31:25,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-17 02:31:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:26,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 4230 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 02:31:26,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:31:26,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1063 trivial. 0 not checked. [2021-11-17 02:31:26,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:31:26,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:31:26,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454549633] [2021-11-17 02:31:26,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 02:31:26,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044831125] [2021-11-17 02:31:26,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044831125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:31:26,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:31:26,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 02:31:26,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3511112] [2021-11-17 02:31:26,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:31:26,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 02:31:26,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:31:26,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 02:31:26,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 02:31:26,817 INFO L87 Difference]: Start difference. First operand 38577 states and 53089 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 02:31:29,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:31:29,132 INFO L93 Difference]: Finished difference Result 82523 states and 114548 transitions. [2021-11-17 02:31:29,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 02:31:29,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 429 [2021-11-17 02:31:29,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:31:29,279 INFO L225 Difference]: With dead ends: 82523 [2021-11-17 02:31:29,279 INFO L226 Difference]: Without dead ends: 43985 [2021-11-17 02:31:29,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 02:31:29,385 INFO L933 BasicCegarLoop]: 6508 mSDtfsCounter, 1445 mSDsluCounter, 11672 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 18180 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:31:29,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1595 Valid, 18180 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 02:31:29,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43985 states. [2021-11-17 02:31:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43985 to 38585. [2021-11-17 02:31:31,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38585 states, 24859 states have (on average 1.2514179975059334) internal successors, (31109), 25743 states have internal predecessors, (31109), 10973 states have call successors, (10973), 2751 states have call predecessors, (10973), 2752 states have return successors, (11015), 10614 states have call predecessors, (11015), 10971 states have call successors, (11015) [2021-11-17 02:31:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38585 states to 38585 states and 53097 transitions. [2021-11-17 02:31:31,515 INFO L78 Accepts]: Start accepts. Automaton has 38585 states and 53097 transitions. Word has length 429 [2021-11-17 02:31:31,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:31:31,516 INFO L470 AbstractCegarLoop]: Abstraction has 38585 states and 53097 transitions. [2021-11-17 02:31:31,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 02:31:31,516 INFO L276 IsEmpty]: Start isEmpty. Operand 38585 states and 53097 transitions. [2021-11-17 02:31:31,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-11-17 02:31:31,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:31:31,727 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:31:31,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-17 02:31:31,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:31:31,928 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:31:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:31:31,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1794113610, now seen corresponding path program 1 times [2021-11-17 02:31:31,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:31:31,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478011875] [2021-11-17 02:31:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:31,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:31:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:31:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:31:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:31:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:31:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:31:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:31:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:31:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:31:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:31:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:31:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 02:31:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 02:31:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 02:31:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 02:31:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 02:31:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 02:31:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 02:31:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 02:31:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 02:31:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 02:31:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 02:31:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-11-17 02:31:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-17 02:31:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-11-17 02:31:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-11-17 02:31:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2021-11-17 02:31:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 02:31:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 02:31:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:32,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 8 proven. 28 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2021-11-17 02:31:32,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:31:32,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478011875] [2021-11-17 02:31:32,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478011875] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:31:32,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477294527] [2021-11-17 02:31:32,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:32,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:31:32,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:31:32,626 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:31:32,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-17 02:31:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:33,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 4148 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-17 02:31:33,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:31:34,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2021-11-17 02:31:34,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:31:34,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477294527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:31:34,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:31:34,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2021-11-17 02:31:34,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704142727] [2021-11-17 02:31:34,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:31:34,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 02:31:34,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:31:34,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 02:31:34,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-11-17 02:31:34,602 INFO L87 Difference]: Start difference. First operand 38585 states and 53097 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-17 02:31:36,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:31:40,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:31:40,209 INFO L93 Difference]: Finished difference Result 115516 states and 158978 transitions. [2021-11-17 02:31:40,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 02:31:40,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 454 [2021-11-17 02:31:40,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:31:40,501 INFO L225 Difference]: With dead ends: 115516 [2021-11-17 02:31:40,502 INFO L226 Difference]: Without dead ends: 76892 [2021-11-17 02:31:40,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-11-17 02:31:40,624 INFO L933 BasicCegarLoop]: 10486 mSDtfsCounter, 5310 mSDsluCounter, 15860 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5310 SdHoareTripleChecker+Valid, 26346 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-17 02:31:40,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5310 Valid, 26346 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-17 02:31:40,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76892 states. [2021-11-17 02:31:44,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76892 to 76749. [2021-11-17 02:31:44,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76749 states, 49450 states have (on average 1.251809908998989) internal successors, (61902), 51211 states have internal predecessors, (61902), 21841 states have call successors, (21841), 5454 states have call predecessors, (21841), 5457 states have return successors, (21927), 21131 states have call predecessors, (21927), 21839 states have call successors, (21927) [2021-11-17 02:31:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76749 states to 76749 states and 105670 transitions. [2021-11-17 02:31:44,862 INFO L78 Accepts]: Start accepts. Automaton has 76749 states and 105670 transitions. Word has length 454 [2021-11-17 02:31:44,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:31:44,862 INFO L470 AbstractCegarLoop]: Abstraction has 76749 states and 105670 transitions. [2021-11-17 02:31:44,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-17 02:31:44,863 INFO L276 IsEmpty]: Start isEmpty. Operand 76749 states and 105670 transitions. [2021-11-17 02:31:44,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2021-11-17 02:31:44,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:31:44,899 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:31:44,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-17 02:31:45,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-17 02:31:45,126 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:31:45,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:31:45,127 INFO L85 PathProgramCache]: Analyzing trace with hash -779154476, now seen corresponding path program 1 times [2021-11-17 02:31:45,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:31:45,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357935305] [2021-11-17 02:31:45,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:45,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:31:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:31:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 02:31:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 02:31:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 02:31:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 02:31:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 02:31:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 02:31:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 02:31:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 02:31:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-17 02:31:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 02:31:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 02:31:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-17 02:31:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 02:31:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-11-17 02:31:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 02:31:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 02:31:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-11-17 02:31:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 02:31:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-11-17 02:31:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 02:31:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 02:31:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-11-17 02:31:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-17 02:31:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 02:31:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-17 02:31:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-11-17 02:31:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 02:31:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:31:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 02:31:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 02:31:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:45,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2021-11-17 02:31:45,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:31:45,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357935305] [2021-11-17 02:31:45,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357935305] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 02:31:45,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243824011] [2021-11-17 02:31:45,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:31:45,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 02:31:45,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 02:31:45,765 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 02:31:45,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-17 02:31:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:31:47,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 4364 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-17 02:31:47,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 02:31:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2021-11-17 02:31:47,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 02:31:47,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243824011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:31:47,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 02:31:47,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2021-11-17 02:31:47,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306364445] [2021-11-17 02:31:47,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:31:47,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 02:31:47,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:31:47,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 02:31:47,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-11-17 02:31:47,831 INFO L87 Difference]: Start difference. First operand 76749 states and 105670 transitions. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 02:31:49,581 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []