./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 c3fed411 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 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 05:47:43,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 05:47:43,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 05:47:43,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 05:47:43,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 05:47:43,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 05:47:43,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 05:47:43,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 05:47:43,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 05:47:43,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 05:47:43,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 05:47:43,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 05:47:43,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 05:47:43,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 05:47:43,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 05:47:43,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 05:47:43,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 05:47:43,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 05:47:43,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 05:47:43,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 05:47:43,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 05:47:43,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 05:47:43,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 05:47:43,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 05:47:43,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 05:47:43,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 05:47:43,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 05:47:43,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 05:47:43,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 05:47:43,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 05:47:43,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 05:47:43,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 05:47:43,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 05:47:43,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 05:47:43,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 05:47:43,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 05:47:43,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 05:47:43,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 05:47:43,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 05:47:43,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 05:47:43,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 05:47:43,664 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 05:47:43,691 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 05:47:43,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 05:47:43,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 05:47:43,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 05:47:43,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 05:47:43,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 05:47:43,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 05:47:43,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 05:47:43,694 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 05:47:43,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 05:47:43,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 05:47:43,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 05:47:43,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 05:47:43,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 05:47:43,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 05:47:43,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 05:47:43,696 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 05:47:43,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 05:47:43,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 05:47:43,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 05:47:43,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 05:47:43,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:47:43,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 05:47:43,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 05:47:43,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 05:47:43,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 05:47:43,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 05:47:43,698 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 05:47:43,698 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 05:47:43,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 05:47:43,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 05:47:43,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18adc7ce46ffd1a3ff82c3c7fa6ef66e3ed2399c064dd9dfbe8501509215a2b1 [2021-12-18 05:47:43,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 05:47:43,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 05:47:43,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 05:47:43,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 05:47:43,902 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 05:47:43,903 INFO L432 ainManager$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 [2021-12-18 05:47:43,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd5639d9/df27d2d79aba47e09311f57900cb54a3/FLAG59ddb7619 [2021-12-18 05:47:44,558 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 05:47:44,558 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 [2021-12-18 05:47:44,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd5639d9/df27d2d79aba47e09311f57900cb54a3/FLAG59ddb7619 [2021-12-18 05:47:44,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd5639d9/df27d2d79aba47e09311f57900cb54a3 [2021-12-18 05:47:44,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 05:47:44,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 05:47:44,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 05:47:44,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 05:47:44,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 05:47:44,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:47:44" (1/1) ... [2021-12-18 05:47:44,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c6f48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:44, skipping insertion in model container [2021-12-18 05:47:44,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:47:44" (1/1) ... [2021-12-18 05:47:44,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 05:47:45,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 05:47:47,827 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] [2021-12-18 05:47:47,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:47:47,910 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 05:47:48,249 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] [2021-12-18 05:47:48,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 05:47:48,389 INFO L208 MainTranslator]: Completed translation [2021-12-18 05:47:48,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48 WrapperNode [2021-12-18 05:47:48,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 05:47:48,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 05:47:48,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 05:47:48,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 05:47:48,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48" (1/1) ... [2021-12-18 05:47:48,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48" (1/1) ... [2021-12-18 05:47:48,759 INFO L137 Inliner]: procedures = 595, calls = 3937, calls flagged for inlining = 264, calls inlined = 257, statements flattened = 9795 [2021-12-18 05:47:48,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 05:47:48,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 05:47:48,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 05:47:48,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 05:47:48,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48" (1/1) ... [2021-12-18 05:47:48,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48" (1/1) ... [2021-12-18 05:47:48,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48" (1/1) ... [2021-12-18 05:47:48,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48" (1/1) ... [2021-12-18 05:47:49,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48" (1/1) ... [2021-12-18 05:47:49,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48" (1/1) ... [2021-12-18 05:47:49,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48" (1/1) ... [2021-12-18 05:47:49,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 05:47:49,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 05:47:49,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 05:47:49,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 05:47:49,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48" (1/1) ... [2021-12-18 05:47:49,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 05:47:49,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:47:49,189 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) [2021-12-18 05:47:49,244 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 [2021-12-18 05:47:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure resize_cache_dev [2021-12-18 05:47:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure resize_cache_dev [2021-12-18 05:47:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure block_size_is_power_of_two [2021-12-18 05:47:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure block_size_is_power_of_two [2021-12-18 05:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 05:47:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 05:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_manager_destroy [2021-12-18 05:47:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_manager_destroy [2021-12-18 05:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2021-12-18 05:47:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2021-12-18 05:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_sm_root [2021-12-18 05:47:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_sm_root [2021-12-18 05:47:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure bio_writes_complete_block [2021-12-18 05:47:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_writes_complete_block [2021-12-18 05:47:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-18 05:47:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_pre_commit [2021-12-18 05:47:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_pre_commit [2021-12-18 05:47:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2021-12-18 05:47:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2021-12-18 05:47:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure cache_map [2021-12-18 05:47:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_map [2021-12-18 05:47:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 05:47:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 05:47:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure process_migrations [2021-12-18 05:47:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure process_migrations [2021-12-18 05:47:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_origin_clear_discard [2021-12-18 05:47:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_origin_clear_discard [2021-12-18 05:47:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_checksum [2021-12-18 05:47:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_checksum [2021-12-18 05:47:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-18 05:47:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-18 05:47:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure put_policy [2021-12-18 05:47:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure put_policy [2021-12-18 05:47:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_tick_bio_needed [2021-12-18 05:47:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_tick_bio_needed [2021-12-18 05:47:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 05:47:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 05:47:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure update_flags [2021-12-18 05:47:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure update_flags [2021-12-18 05:47:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure calc_discard_block_range [2021-12-18 05:47:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_discard_block_range [2021-12-18 05:47:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-12-18 05:47:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2021-12-18 05:47:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release_no_holder [2021-12-18 05:47:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure free_bitset [2021-12-18 05:47:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bitset [2021-12-18 05:47:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure commit_if_needed [2021-12-18 05:47:49,273 INFO L138 BoogieDeclarations]: Found implementation of procedure commit_if_needed [2021-12-18 05:47:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-18 05:47:49,273 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-18 05:47:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-18 05:47:49,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-18 05:47:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data [2021-12-18 05:47:49,273 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data [2021-12-18 05:47:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_then_cache [2021-12-18 05:47:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_then_cache [2021-12-18 05:47:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-18 05:47:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-18 05:47:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_remove_mapping [2021-12-18 05:47:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_remove_mapping [2021-12-18 05:47:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure dblock_to_oblock [2021-12-18 05:47:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure dblock_to_oblock [2021-12-18 05:47:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 05:47:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 05:47:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin [2021-12-18 05:47:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin [2021-12-18 05:47:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bitset [2021-12-18 05:47:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bitset [2021-12-18 05:47:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain_range [2021-12-18 05:47:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain_range [2021-12-18 05:47:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure from_cblock [2021-12-18 05:47:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure from_cblock [2021-12-18 05:47:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure writethrough_mode [2021-12-18 05:47:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure writethrough_mode [2021-12-18 05:47:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure write_dirty_bitset [2021-12-18 05:47:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure write_dirty_bitset [2021-12-18 05:47:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 05:47:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 05:47:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure writeback_mode [2021-12-18 05:47:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure writeback_mode [2021-12-18 05:47:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure cache_postsuspend [2021-12-18 05:47:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_postsuspend [2021-12-18 05:47:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_migration [2021-12-18 05:47:49,279 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_migration [2021-12-18 05:47:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure issue_copy_or_discard [2021-12-18 05:47:49,279 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_copy_or_discard [2021-12-18 05:47:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure cache_dtr [2021-12-18 05:47:49,279 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_dtr [2021-12-18 05:47:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-18 05:47:49,280 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-18 05:47:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-18 05:47:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_prison_cell [2021-12-18 05:47:49,280 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_prison_cell [2021-12-18 05:47:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_version [2021-12-18 05:47:49,281 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_version [2021-12-18 05:47:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 05:47:49,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 05:47:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 05:47:49,281 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 05:47:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure __create_persistent_data_objects [2021-12-18 05:47:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_persistent_data_objects [2021-12-18 05:47:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 05:47:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure get_per_bio_data_size [2021-12-18 05:47:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure get_per_bio_data_size [2021-12-18 05:47:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_resize [2021-12-18 05:47:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_resize [2021-12-18 05:47:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 05:47:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 05:47:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_request [2021-12-18 05:47:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_request [2021-12-18 05:47:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure pack_value [2021-12-18 05:47:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pack_value [2021-12-18 05:47:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-18 05:47:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-18 05:47:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2021-12-18 05:47:49,284 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2021-12-18 05:47:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 05:47:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure clear_discard [2021-12-18 05:47:49,285 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_discard [2021-12-18 05:47:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_get_cell [2021-12-18 05:47:49,286 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_get_cell [2021-12-18 05:47:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 05:47:49,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 05:47:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure process_deferred_flush_bios [2021-12-18 05:47:49,288 INFO L138 BoogieDeclarations]: Found implementation of procedure process_deferred_flush_bios [2021-12-18 05:47:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure cell_defer [2021-12-18 05:47:49,288 INFO L138 BoogieDeclarations]: Found implementation of procedure cell_defer [2021-12-18 05:47:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 05:47:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_commit [2021-12-18 05:47:49,292 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_commit [2021-12-18 05:47:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure sb_check [2021-12-18 05:47:49,292 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_check [2021-12-18 05:47:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_destroy [2021-12-18 05:47:49,292 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_destroy [2021-12-18 05:47:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure cache_device_name [2021-12-18 05:47:49,292 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_device_name [2021-12-18 05:47:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 05:47:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure get_policy_once [2021-12-18 05:47:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure get_policy_once [2021-12-18 05:47:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure issue [2021-12-18 05:47:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure issue [2021-12-18 05:47:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 05:47:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 05:47:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure inc_and_issue [2021-12-18 05:47:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_and_issue [2021-12-18 05:47:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure write_discard_bitset [2021-12-18 05:47:49,293 INFO L138 BoogieDeclarations]: Found implementation of procedure write_discard_bitset [2021-12-18 05:47:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure sync_metadata [2021-12-18 05:47:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_metadata [2021-12-18 05:47:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-18 05:47:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-18 05:47:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard_range [2021-12-18 05:47:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard_range [2021-12-18 05:47:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure policy_unchanged [2021-12-18 05:47:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_unchanged [2021-12-18 05:47:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-18 05:47:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-18 05:47:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure set_config_value [2021-12-18 05:47:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure set_config_value [2021-12-18 05:47:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure stop_worker [2021-12-18 05:47:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_worker [2021-12-18 05:47:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_12 [2021-12-18 05:47:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_12 [2021-12-18 05:47:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 05:47:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 05:47:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure policy_force_mapping [2021-12-18 05:47:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_force_mapping [2021-12-18 05:47:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_origin_clear_discard [2021-12-18 05:47:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_origin_clear_discard [2021-12-18 05:47:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure __save_sm_root [2021-12-18 05:47:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __save_sm_root [2021-12-18 05:47:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 05:47:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-18 05:47:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-18 05:47:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure blocks_are_unmapped_or_clean [2021-12-18 05:47:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure blocks_are_unmapped_or_clean [2021-12-18 05:47:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-18 05:47:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-18 05:47:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 05:47:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure do_worker [2021-12-18 05:47:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure do_worker [2021-12-18 05:47:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2021-12-18 05:47:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2021-12-18 05:47:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure build_key [2021-12-18 05:47:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure build_key [2021-12-18 05:47:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 05:47:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 05:47:49,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 05:47:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure write_hints [2021-12-18 05:47:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure write_hints [2021-12-18 05:47:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-12-18 05:47:49,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-12-18 05:47:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure __find_policy [2021-12-18 05:47:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_policy [2021-12-18 05:47:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure policy_tick [2021-12-18 05:47:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_tick [2021-12-18 05:47:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure cache_resume [2021-12-18 05:47:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_resume [2021-12-18 05:47:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2021-12-18 05:47:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2021-12-18 05:47:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_close [2021-12-18 05:47:49,299 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_close [2021-12-18 05:47:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_hint_size [2021-12-18 05:47:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_hint_size [2021-12-18 05:47:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-18 05:47:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-18 05:47:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_pop [2021-12-18 05:47:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_pop [2021-12-18 05:47:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure free_migration [2021-12-18 05:47:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure free_migration [2021-12-18 05:47:49,300 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-18 05:47:49,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-18 05:47:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure passthrough_mode [2021-12-18 05:47:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure passthrough_mode [2021-12-18 05:47:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure get_cache_mode [2021-12-18 05:47:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cache_mode [2021-12-18 05:47:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure to_cblock [2021-12-18 05:47:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure to_cblock [2021-12-18 05:47:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure cache_iterate_devices [2021-12-18 05:47:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_iterate_devices [2021-12-18 05:47:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure to_oblock [2021-12-18 05:47:49,301 INFO L138 BoogieDeclarations]: Found implementation of procedure to_oblock [2021-12-18 05:47:49,301 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-18 05:47:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-18 05:47:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure block_div [2021-12-18 05:47:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure block_div [2021-12-18 05:47:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-18 05:47:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-18 05:47:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 05:47:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 05:47:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure oblocks_per_dblock [2021-12-18 05:47:49,302 INFO L138 BoogieDeclarations]: Found implementation of procedure oblocks_per_dblock [2021-12-18 05:47:49,302 INFO L130 BoogieDeclarations]: Found specification of procedure policy_set_dirty [2021-12-18 05:47:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_set_dirty [2021-12-18 05:47:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_size [2021-12-18 05:47:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_size [2021-12-18 05:47:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure cache_message [2021-12-18 05:47:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_message [2021-12-18 05:47:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-18 05:47:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-18 05:47:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure inc_ds [2021-12-18 05:47:49,303 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_ds [2021-12-18 05:47:49,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 05:47:49,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 05:47:49,304 INFO L130 BoogieDeclarations]: Found specification of procedure inc_hit_counter [2021-12-18 05:47:49,304 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_hit_counter [2021-12-18 05:47:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 05:47:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 05:47:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_11 [2021-12-18 05:47:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_11 [2021-12-18 05:47:49,307 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_visit_release [2021-12-18 05:47:49,307 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cell_visit_release [2021-12-18 05:47:49,308 INFO L130 BoogieDeclarations]: Found specification of procedure commit [2021-12-18 05:47:49,308 INFO L138 BoogieDeclarations]: Found implementation of procedure commit [2021-12-18 05:47:49,308 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-12-18 05:47:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-12-18 05:47:49,309 INFO L130 BoogieDeclarations]: Found specification of procedure cache_io_hints [2021-12-18 05:47:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_io_hints [2021-12-18 05:47:49,309 INFO L130 BoogieDeclarations]: Found specification of procedure cache_end_io [2021-12-18 05:47:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_end_io [2021-12-18 05:47:49,309 INFO L130 BoogieDeclarations]: Found specification of procedure accounted_begin [2021-12-18 05:47:49,309 INFO L138 BoogieDeclarations]: Found implementation of procedure accounted_begin [2021-12-18 05:47:49,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 05:47:49,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 05:47:49,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 05:47:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 05:47:49,310 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_metadata_abort [2021-12-18 05:47:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_metadata_abort [2021-12-18 05:47:49,310 INFO L130 BoogieDeclarations]: Found specification of procedure read_superblock_fields [2021-12-18 05:47:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure read_superblock_fields [2021-12-18 05:47:49,310 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_min [2021-12-18 05:47:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_min [2021-12-18 05:47:49,310 INFO L130 BoogieDeclarations]: Found specification of procedure inc_miss_counter [2021-12-18 05:47:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_miss_counter [2021-12-18 05:47:49,310 INFO L130 BoogieDeclarations]: Found specification of procedure migration_failure [2021-12-18 05:47:49,310 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_failure [2021-12-18 05:47:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure dm_hook_bio [2021-12-18 05:47:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_hook_bio [2021-12-18 05:47:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_set_value [2021-12-18 05:47:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_set_value [2021-12-18 05:47:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure free_io_migration [2021-12-18 05:47:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure free_io_migration [2021-12-18 05:47:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-18 05:47:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-18 05:47:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure do_waker [2021-12-18 05:47:49,311 INFO L138 BoogieDeclarations]: Found implementation of procedure do_waker [2021-12-18 05:47:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_size [2021-12-18 05:47:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_size [2021-12-18 05:47:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure is_discarded_oblock [2021-12-18 05:47:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure is_discarded_oblock [2021-12-18 05:47:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bitset [2021-12-18 05:47:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bitset [2021-12-18 05:47:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 05:47:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 05:47:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure __setup_mapping_info [2021-12-18 05:47:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __setup_mapping_info [2021-12-18 05:47:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 05:47:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 05:47:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-18 05:47:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-18 05:47:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure bitset_size_in_bytes [2021-12-18 05:47:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure bitset_size_in_bytes [2021-12-18 05:47:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 05:47:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 05:47:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 05:47:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 05:47:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_is_read_only [2021-12-18 05:47:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_is_read_only [2021-12-18 05:47:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 05:47:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 05:47:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_location [2021-12-18 05:47:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_location [2021-12-18 05:47:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure dm_read_arg_group [2021-12-18 05:47:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_read_arg_group [2021-12-18 05:47:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure clear_dirty [2021-12-18 05:47:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_dirty [2021-12-18 05:47:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_copy [2021-12-18 05:47:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_copy [2021-12-18 05:47:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-18 05:47:49,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-18 05:47:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure quiesce_migration [2021-12-18 05:47:49,315 INFO L138 BoogieDeclarations]: Found implementation of procedure quiesce_migration [2021-12-18 05:47:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2021-12-18 05:47:49,315 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2021-12-18 05:47:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure blk_limits_io_opt [2021-12-18 05:47:49,315 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_limits_io_opt [2021-12-18 05:47:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2021-12-18 05:47:49,315 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2021-12-18 05:47:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-18 05:47:49,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-18 05:47:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 05:47:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 05:47:49,316 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 05:47:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-18 05:47:49,316 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-18 05:47:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure free_prison_cell [2021-12-18 05:47:49,316 INFO L138 BoogieDeclarations]: Found implementation of procedure free_prison_cell [2021-12-18 05:47:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 05:47:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure __format_metadata [2021-12-18 05:47:49,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __format_metadata [2021-12-18 05:47:49,316 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-18 05:47:49,317 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-18 05:47:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure discard_or_flush [2021-12-18 05:47:49,317 INFO L138 BoogieDeclarations]: Found implementation of procedure discard_or_flush [2021-12-18 05:47:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_data_structs [2021-12-18 05:47:49,317 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_data_structs [2021-12-18 05:47:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-18 05:47:49,317 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-18 05:47:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure unpack_value [2021-12-18 05:47:49,317 INFO L138 BoogieDeclarations]: Found implementation of procedure unpack_value [2021-12-18 05:47:49,317 INFO L130 BoogieDeclarations]: Found specification of procedure dm_sm_destroy [2021-12-18 05:47:49,317 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_sm_destroy [2021-12-18 05:47:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_read_lock [2021-12-18 05:47:49,318 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_read_lock [2021-12-18 05:47:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 05:47:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure dm_block_data [2021-12-18 05:47:49,318 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_block_data [2021-12-18 05:47:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure from_dblock [2021-12-18 05:47:49,318 INFO L138 BoogieDeclarations]: Found implementation of procedure from_dblock [2021-12-18 05:47:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 05:47:49,318 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 05:47:49,318 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-18 05:47:49,318 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-18 05:47:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 05:47:49,319 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 05:47:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure cache_bvec_merge [2021-12-18 05:47:49,319 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_bvec_merge [2021-12-18 05:47:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-18 05:47:49,319 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-18 05:47:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-18 05:47:49,319 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-18 05:47:49,319 INFO L130 BoogieDeclarations]: Found specification of procedure is_dirty [2021-12-18 05:47:49,319 INFO L138 BoogieDeclarations]: Found implementation of procedure is_dirty [2021-12-18 05:47:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure __open_or_format_metadata [2021-12-18 05:47:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __open_or_format_metadata [2021-12-18 05:47:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2021-12-18 05:47:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2021-12-18 05:47:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-18 05:47:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-18 05:47:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_get_value [2021-12-18 05:47:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_get_value [2021-12-18 05:47:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_empty [2021-12-18 05:47:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_empty [2021-12-18 05:47:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure set_dirty [2021-12-18 05:47:49,321 INFO L138 BoogieDeclarations]: Found implementation of procedure set_dirty [2021-12-18 05:47:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2021-12-18 05:47:49,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2021-12-18 05:47:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_walk [2021-12-18 05:47:49,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_walk [2021-12-18 05:47:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 05:47:49,321 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 05:47:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure remap_to_cache [2021-12-18 05:47:49,321 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_to_cache [2021-12-18 05:47:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure oblock_to_dblock [2021-12-18 05:47:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure oblock_to_dblock [2021-12-18 05:47:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure wake_worker [2021-12-18 05:47:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_worker [2021-12-18 05:47:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_free_structs [2021-12-18 05:47:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_free_structs [2021-12-18 05:47:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure dm_disk_bitset_init [2021-12-18 05:47:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_disk_bitset_init [2021-12-18 05:47:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure set_discard [2021-12-18 05:47:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure set_discard [2021-12-18 05:47:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure get_bio_block [2021-12-18 05:47:49,322 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bio_block [2021-12-18 05:47:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure destroy [2021-12-18 05:47:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy [2021-12-18 05:47:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_read_lock [2021-12-18 05:47:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_read_lock [2021-12-18 05:47:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 05:47:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 05:47:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cell_release [2021-12-18 05:47:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure is_quiescing [2021-12-18 05:47:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quiescing [2021-12-18 05:47:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 05:47:49,323 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 05:47:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure abort_transaction [2021-12-18 05:47:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure abort_transaction [2021-12-18 05:47:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 05:47:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_mode [2021-12-18 05:47:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_mode [2021-12-18 05:47:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure dm_array_info_init [2021-12-18 05:47:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_array_info_init [2021-12-18 05:47:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 05:47:49,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 05:47:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure from_oblock [2021-12-18 05:47:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure from_oblock [2021-12-18 05:47:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 05:47:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 05:47:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure superblock_lock [2021-12-18 05:47:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure superblock_lock [2021-12-18 05:47:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_copy [2021-12-18 05:47:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_copy [2021-12-18 05:47:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 05:47:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 05:47:49,325 INFO L130 BoogieDeclarations]: Found specification of procedure dm_cache_policy_get_name [2021-12-18 05:47:49,325 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_cache_policy_get_name [2021-12-18 05:47:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure spare_migration_bandwidth [2021-12-18 05:47:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure spare_migration_bandwidth [2021-12-18 05:47:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_add [2021-12-18 05:47:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_add [2021-12-18 05:47:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure remap_cell_to_cache_dirty [2021-12-18 05:47:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_cell_to_cache_dirty [2021-12-18 05:47:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure prealloc_put_cell [2021-12-18 05:47:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure prealloc_put_cell [2021-12-18 05:47:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-12-18 05:47:49,326 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-12-18 05:47:49,326 INFO L130 BoogieDeclarations]: Found specification of procedure defer_bio [2021-12-18 05:47:49,327 INFO L138 BoogieDeclarations]: Found implementation of procedure defer_bio [2021-12-18 05:47:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure metadata_operation_failed [2021-12-18 05:47:49,327 INFO L138 BoogieDeclarations]: Found implementation of procedure metadata_operation_failed [2021-12-18 05:47:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-18 05:47:49,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-18 05:47:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure dm_shift_arg [2021-12-18 05:47:49,327 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_shift_arg [2021-12-18 05:47:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_requests [2021-12-18 05:47:49,327 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_requests [2021-12-18 05:47:49,327 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-18 05:47:49,327 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-18 05:47:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_merge [2021-12-18 05:47:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_merge [2021-12-18 05:47:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure policy_remove_mapping [2021-12-18 05:47:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_remove_mapping [2021-12-18 05:47:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure to_dblock [2021-12-18 05:47:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure to_dblock [2021-12-18 05:47:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-18 05:47:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-18 05:47:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure bio_detain [2021-12-18 05:47:49,328 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_detain [2021-12-18 05:47:49,328 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-12-18 05:47:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-12-18 05:47:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure at_least_one_arg [2021-12-18 05:47:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure at_least_one_arg [2021-12-18 05:47:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure __queue_quiesced_migration [2021-12-18 05:47:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __queue_quiesced_migration [2021-12-18 05:47:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure inc_io_migrations [2021-12-18 05:47:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_io_migrations [2021-12-18 05:47:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2021-12-18 05:47:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure policy_map [2021-12-18 05:47:49,329 INFO L138 BoogieDeclarations]: Found implementation of procedure policy_map [2021-12-18 05:47:49,329 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_prison_free_cell [2021-12-18 05:47:49,330 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_prison_free_cell [2021-12-18 05:47:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure dm_tm_destroy [2021-12-18 05:47:49,330 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_tm_destroy [2021-12-18 05:47:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure complete_migration [2021-12-18 05:47:49,330 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_migration [2021-12-18 05:47:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 05:47:49,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 05:47:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 05:47:49,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-18 05:47:49,330 INFO L130 BoogieDeclarations]: Found specification of procedure __destroy_persistent_data_objects [2021-12-18 05:47:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __destroy_persistent_data_objects [2021-12-18 05:47:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure lookup [2021-12-18 05:47:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup [2021-12-18 05:47:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure process_invalidation_request [2021-12-18 05:47:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure process_invalidation_request [2021-12-18 05:47:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure migration_success_pre_commit [2021-12-18 05:47:49,333 INFO L138 BoogieDeclarations]: Found implementation of procedure migration_success_pre_commit [2021-12-18 05:47:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 05:47:49,333 INFO L130 BoogieDeclarations]: Found specification of procedure cache_status [2021-12-18 05:47:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure cache_status [2021-12-18 05:47:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bm_unlock [2021-12-18 05:47:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bm_unlock [2021-12-18 05:47:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2021-12-18 05:47:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2021-12-18 05:47:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-18 05:47:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-12-18 05:47:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dm_oblock_t~0~TO~VOID [2021-12-18 05:47:49,334 INFO L130 BoogieDeclarations]: Found specification of procedure process_cell [2021-12-18 05:47:49,334 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cell [2021-12-18 05:47:50,316 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 05:47:50,320 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 05:47:50,799 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 05:47:58,200 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 05:47:58,216 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 05:47:58,217 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 05:47:58,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:47:58 BoogieIcfgContainer [2021-12-18 05:47:58,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 05:47:58,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 05:47:58,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 05:47:58,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 05:47:58,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 05:47:44" (1/3) ... [2021-12-18 05:47:58,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54607715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:47:58, skipping insertion in model container [2021-12-18 05:47:58,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:47:48" (2/3) ... [2021-12-18 05:47:58,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54607715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:47:58, skipping insertion in model container [2021-12-18 05:47:58,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:47:58" (3/3) ... [2021-12-18 05:47:58,227 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--md--dm-cache.ko-entry_point.cil.out.i [2021-12-18 05:47:58,231 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 05:47:58,231 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 05:47:58,276 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 05:47:58,288 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 [2021-12-18 05:47:58,288 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 05:47:58,357 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) [2021-12-18 05:47:58,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-18 05:47:58,377 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:47:58,378 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] [2021-12-18 05:47:58,378 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:47:58,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:47:58,383 INFO L85 PathProgramCache]: Analyzing trace with hash -901261265, now seen corresponding path program 1 times [2021-12-18 05:47:58,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:47:58,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012517289] [2021-12-18 05:47:58,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:47:58,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:47:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:47:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:47:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:47:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:47:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:47:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:47:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:47:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:47:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:47:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:47:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:47:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:47:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:47:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:47:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:47:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:47:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:47:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:47:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:47:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:47:59,484 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-18 05:47:59,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:47:59,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012517289] [2021-12-18 05:47:59,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012517289] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:47:59,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:47:59,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 05:47:59,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284307886] [2021-12-18 05:47:59,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:47:59,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 05:47:59,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:47:59,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 05:47:59,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 05:47:59,516 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) [2021-12-18 05:48:05,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:48:11,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:48:11,850 INFO L93 Difference]: Finished difference Result 8414 states and 12295 transitions. [2021-12-18 05:48:11,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 05:48:11,853 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 [2021-12-18 05:48:11,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:48:11,904 INFO L225 Difference]: With dead ends: 8414 [2021-12-18 05:48:11,905 INFO L226 Difference]: Without dead ends: 4534 [2021-12-18 05:48:11,929 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 [2021-12-18 05:48:11,932 INFO L933 BasicCegarLoop]: 4910 mSDtfsCounter, 4312 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 2287 mSolverCounterSat, 5012 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4421 SdHoareTripleChecker+Valid, 7063 SdHoareTripleChecker+Invalid, 7299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5012 IncrementalHoareTripleChecker+Valid, 2287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-12-18 05:48:11,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4421 Valid, 7063 Invalid, 7299 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5012 Valid, 2287 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2021-12-18 05:48:11,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4534 states. [2021-12-18 05:48:12,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4534 to 3843. [2021-12-18 05:48:12,157 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) [2021-12-18 05:48:12,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 5385 transitions. [2021-12-18 05:48:12,183 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 5385 transitions. Word has length 253 [2021-12-18 05:48:12,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:48:12,185 INFO L470 AbstractCegarLoop]: Abstraction has 3843 states and 5385 transitions. [2021-12-18 05:48:12,185 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) [2021-12-18 05:48:12,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 5385 transitions. [2021-12-18 05:48:12,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-18 05:48:12,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:48:12,191 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] [2021-12-18 05:48:12,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 05:48:12,192 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:48:12,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:48:12,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1699436963, now seen corresponding path program 1 times [2021-12-18 05:48:12,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:48:12,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179331544] [2021-12-18 05:48:12,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:48:12,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:48:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:48:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:48:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:48:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:48:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:48:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:48:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:48:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:48:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:48:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:48:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:48:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:48:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:48:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:48:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:48:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:48:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:48:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:12,869 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-18 05:48:12,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:48:12,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179331544] [2021-12-18 05:48:12,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179331544] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:48:12,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:48:12,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 05:48:12,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32472756] [2021-12-18 05:48:12,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:48:12,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:48:12,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:48:12,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:48:12,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:48:12,876 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) [2021-12-18 05:48:28,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:48:31,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:48:31,275 INFO L93 Difference]: Finished difference Result 12831 states and 18518 transitions. [2021-12-18 05:48:31,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 05:48:31,276 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 [2021-12-18 05:48:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:48:31,334 INFO L225 Difference]: With dead ends: 12831 [2021-12-18 05:48:31,334 INFO L226 Difference]: Without dead ends: 9021 [2021-12-18 05:48:31,361 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 [2021-12-18 05:48:31,362 INFO L933 BasicCegarLoop]: 6141 mSDtfsCounter, 13129 mSDsluCounter, 6773 mSDsCounter, 0 mSdLazyCounter, 5119 mSolverCounterSat, 10747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13841 SdHoareTripleChecker+Valid, 12914 SdHoareTripleChecker+Invalid, 15866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10747 IncrementalHoareTripleChecker+Valid, 5119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-12-18 05:48:31,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13841 Valid, 12914 Invalid, 15866 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10747 Valid, 5119 Invalid, 0 Unknown, 0 Unchecked, 17.5s Time] [2021-12-18 05:48:31,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9021 states. [2021-12-18 05:48:31,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9021 to 7636. [2021-12-18 05:48:31,646 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) [2021-12-18 05:48:31,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7636 states to 7636 states and 10702 transitions. [2021-12-18 05:48:31,679 INFO L78 Accepts]: Start accepts. Automaton has 7636 states and 10702 transitions. Word has length 253 [2021-12-18 05:48:31,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:48:31,681 INFO L470 AbstractCegarLoop]: Abstraction has 7636 states and 10702 transitions. [2021-12-18 05:48:31,682 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) [2021-12-18 05:48:31,682 INFO L276 IsEmpty]: Start isEmpty. Operand 7636 states and 10702 transitions. [2021-12-18 05:48:31,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-12-18 05:48:31,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:48:31,694 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] [2021-12-18 05:48:31,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 05:48:31,694 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:48:31,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:48:31,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1091692974, now seen corresponding path program 1 times [2021-12-18 05:48:31,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:48:31,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449675707] [2021-12-18 05:48:31,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:48:31,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:48:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:48:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:48:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:48:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:48:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:31,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:48:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:48:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:48:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:48:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:48:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:48:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:48:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:48:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:48:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:48:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:48:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:48:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:48:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 05:48:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 05:48:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:48:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 05:48:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:48:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:48:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 05:48:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 05:48:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:48:32,397 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2021-12-18 05:48:32,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:48:32,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449675707] [2021-12-18 05:48:32,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449675707] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:48:32,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:48:32,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 05:48:32,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551748537] [2021-12-18 05:48:32,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:48:32,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 05:48:32,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:48:32,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 05:48:32,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-18 05:48:32,406 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) [2021-12-18 05:48:39,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:48:51,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:05,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:08,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:49:08,547 INFO L93 Difference]: Finished difference Result 26594 states and 38841 transitions. [2021-12-18 05:49:08,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 05:49:08,547 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 [2021-12-18 05:49:08,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:49:08,656 INFO L225 Difference]: With dead ends: 26594 [2021-12-18 05:49:08,657 INFO L226 Difference]: Without dead ends: 18997 [2021-12-18 05:49:08,691 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 [2021-12-18 05:49:08,695 INFO L933 BasicCegarLoop]: 5590 mSDtfsCounter, 13306 mSDsluCounter, 7410 mSDsCounter, 0 mSdLazyCounter, 9962 mSolverCounterSat, 12856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14450 SdHoareTripleChecker+Valid, 13000 SdHoareTripleChecker+Invalid, 22818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 12856 IncrementalHoareTripleChecker+Valid, 9962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2021-12-18 05:49:08,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14450 Valid, 13000 Invalid, 22818 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [12856 Valid, 9962 Invalid, 0 Unknown, 0 Unchecked, 34.4s Time] [2021-12-18 05:49:08,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18997 states. [2021-12-18 05:49:09,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18997 to 13073. [2021-12-18 05:49:09,420 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) [2021-12-18 05:49:09,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13073 states to 13073 states and 18110 transitions. [2021-12-18 05:49:09,484 INFO L78 Accepts]: Start accepts. Automaton has 13073 states and 18110 transitions. Word has length 335 [2021-12-18 05:49:09,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:49:09,485 INFO L470 AbstractCegarLoop]: Abstraction has 13073 states and 18110 transitions. [2021-12-18 05:49:09,485 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) [2021-12-18 05:49:09,485 INFO L276 IsEmpty]: Start isEmpty. Operand 13073 states and 18110 transitions. [2021-12-18 05:49:09,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-12-18 05:49:09,493 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:49:09,493 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] [2021-12-18 05:49:09,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 05:49:09,494 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:49:09,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:49:09,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2077905195, now seen corresponding path program 1 times [2021-12-18 05:49:09,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:49:09,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887906963] [2021-12-18 05:49:09,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:49:09,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:49:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:49:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:49:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:49:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:49:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:49:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:49:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:49:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:09,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:49:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:49:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:49:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:49:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:49:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:49:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:49:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:49:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:49:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:49:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 05:49:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 05:49:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-18 05:49:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 05:49:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 05:49:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 05:49:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 05:49:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 05:49:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:10,236 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-18 05:49:10,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:49:10,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887906963] [2021-12-18 05:49:10,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887906963] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:49:10,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324861061] [2021-12-18 05:49:10,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:49:10,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:49:10,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:49:10,266 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) [2021-12-18 05:49:10,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 05:49:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:11,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 3711 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 05:49:11,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:49:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2021-12-18 05:49:12,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:49:12,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324861061] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:49:12,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 05:49:12,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2021-12-18 05:49:12,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813644457] [2021-12-18 05:49:12,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:49:12,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 05:49:12,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:49:12,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 05:49:12,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-18 05:49:12,153 INFO L87 Difference]: Start difference. First operand 13073 states and 18110 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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) [2021-12-18 05:49:12,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:49:12,946 INFO L93 Difference]: Finished difference Result 26219 states and 36640 transitions. [2021-12-18 05:49:12,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 05:49:12,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 325 [2021-12-18 05:49:12,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:49:12,998 INFO L225 Difference]: With dead ends: 26219 [2021-12-18 05:49:12,998 INFO L226 Difference]: Without dead ends: 13185 [2021-12-18 05:49:13,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:49:13,041 INFO L933 BasicCegarLoop]: 5380 mSDtfsCounter, 22 mSDsluCounter, 16111 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2021-12-18 05:49:13,042 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] [2021-12-18 05:49:13,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13185 states. [2021-12-18 05:49:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13185 to 13185. [2021-12-18 05:49:13,624 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) [2021-12-18 05:49:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13185 states to 13185 states and 18246 transitions. [2021-12-18 05:49:13,683 INFO L78 Accepts]: Start accepts. Automaton has 13185 states and 18246 transitions. Word has length 325 [2021-12-18 05:49:13,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:49:13,687 INFO L470 AbstractCegarLoop]: Abstraction has 13185 states and 18246 transitions. [2021-12-18 05:49:13,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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) [2021-12-18 05:49:13,687 INFO L276 IsEmpty]: Start isEmpty. Operand 13185 states and 18246 transitions. [2021-12-18 05:49:13,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-12-18 05:49:13,700 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:49:13,701 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] [2021-12-18 05:49:13,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-18 05:49:13,923 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 [2021-12-18 05:49:13,924 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:49:13,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:49:13,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1830330364, now seen corresponding path program 1 times [2021-12-18 05:49:13,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:49:13,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191853030] [2021-12-18 05:49:13,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:49:13,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:49:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:49:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:49:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:49:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:49:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:49:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:49:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:49:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:49:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:49:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:49:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:49:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:49:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:49:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:49:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:49:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:49:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:49:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-18 05:49:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-18 05:49:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 05:49:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 05:49:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 05:49:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 05:49:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 05:49:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-18 05:49:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 05:49:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 05:49:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 05:49:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 05:49:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 05:49:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2021-12-18 05:49:14,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:49:14,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191853030] [2021-12-18 05:49:14,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191853030] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:49:14,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364457016] [2021-12-18 05:49:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:49:14,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:49:14,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:49:14,732 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) [2021-12-18 05:49:14,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 05:49:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:16,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 3983 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 05:49:16,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:49:16,474 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2021-12-18 05:49:16,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:49:16,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364457016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:49:16,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 05:49:16,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2021-12-18 05:49:16,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585790317] [2021-12-18 05:49:16,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:49:16,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 05:49:16,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:49:16,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 05:49:16,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-12-18 05:49:16,476 INFO L87 Difference]: Start difference. First operand 13185 states and 18246 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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) [2021-12-18 05:49:17,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:49:17,133 INFO L93 Difference]: Finished difference Result 26463 states and 36968 transitions. [2021-12-18 05:49:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 05:49:17,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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 361 [2021-12-18 05:49:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:49:17,208 INFO L225 Difference]: With dead ends: 26463 [2021-12-18 05:49:17,208 INFO L226 Difference]: Without dead ends: 13317 [2021-12-18 05:49:17,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:49:17,372 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 [2021-12-18 05:49:17,373 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] [2021-12-18 05:49:17,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13317 states. [2021-12-18 05:49:17,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13317 to 13309. [2021-12-18 05:49:17,922 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) [2021-12-18 05:49:17,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13309 states to 13309 states and 18418 transitions. [2021-12-18 05:49:17,973 INFO L78 Accepts]: Start accepts. Automaton has 13309 states and 18418 transitions. Word has length 361 [2021-12-18 05:49:17,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:49:17,974 INFO L470 AbstractCegarLoop]: Abstraction has 13309 states and 18418 transitions. [2021-12-18 05:49:17,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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) [2021-12-18 05:49:17,974 INFO L276 IsEmpty]: Start isEmpty. Operand 13309 states and 18418 transitions. [2021-12-18 05:49:17,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2021-12-18 05:49:17,983 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:49:17,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:49:18,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 05:49:18,223 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 [2021-12-18 05:49:18,224 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:49:18,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:49:18,224 INFO L85 PathProgramCache]: Analyzing trace with hash -651008873, now seen corresponding path program 1 times [2021-12-18 05:49:18,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:49:18,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197744988] [2021-12-18 05:49:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:49:18,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:49:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:49:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:49:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:49:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:49:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:49:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:49:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:49:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:49:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:49:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:49:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:49:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:49:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:49:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:49:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:49:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:49:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:49:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 05:49:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 05:49:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 05:49:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-18 05:49:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 05:49:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:49:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 05:49:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:49:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:49:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 05:49:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 05:49:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:49:18,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1026 trivial. 0 not checked. [2021-12-18 05:49:18,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:49:18,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197744988] [2021-12-18 05:49:18,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197744988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:49:18,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:49:18,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 05:49:18,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417715118] [2021-12-18 05:49:18,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:49:18,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 05:49:18,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:49:18,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 05:49:18,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:49:18,757 INFO L87 Difference]: Start difference. First operand 13309 states and 18418 transitions. Second operand has 10 states, 10 states have (on average 12.9) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (38), 9 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 05:49:25,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:49:33,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:50:17,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:50:19,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:50:21,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:50:22,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:50:25,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 05:50:28,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:50:28,605 INFO L93 Difference]: Finished difference Result 43110 states and 63307 transitions. [2021-12-18 05:50:28,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-18 05:50:28,606 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.9) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (38), 9 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 388 [2021-12-18 05:50:28,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:50:28,791 INFO L225 Difference]: With dead ends: 43110 [2021-12-18 05:50:28,792 INFO L226 Difference]: Without dead ends: 29840 [2021-12-18 05:50:28,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2021-12-18 05:50:28,840 INFO L933 BasicCegarLoop]: 7525 mSDtfsCounter, 9790 mSDsluCounter, 12715 mSDsCounter, 0 mSdLazyCounter, 19258 mSolverCounterSat, 7929 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11109 SdHoareTripleChecker+Valid, 20240 SdHoareTripleChecker+Invalid, 27190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7929 IncrementalHoareTripleChecker+Valid, 19258 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.3s IncrementalHoareTripleChecker+Time [2021-12-18 05:50:28,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11109 Valid, 20240 Invalid, 27190 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7929 Valid, 19258 Invalid, 3 Unknown, 0 Unchecked, 67.3s Time] [2021-12-18 05:50:28,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29840 states. [2021-12-18 05:50:29,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29840 to 19556. [2021-12-18 05:50:29,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19556 states, 12590 states have (on average 1.252025416997617) internal successors, (15763), 13030 states have internal predecessors, (15763), 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) [2021-12-18 05:50:30,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19556 states to 19556 states and 26947 transitions. [2021-12-18 05:50:30,052 INFO L78 Accepts]: Start accepts. Automaton has 19556 states and 26947 transitions. Word has length 388 [2021-12-18 05:50:30,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:50:30,053 INFO L470 AbstractCegarLoop]: Abstraction has 19556 states and 26947 transitions. [2021-12-18 05:50:30,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.9) internal successors, (129), 3 states have internal predecessors, (129), 3 states have call successors, (38), 9 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 05:50:30,053 INFO L276 IsEmpty]: Start isEmpty. Operand 19556 states and 26947 transitions. [2021-12-18 05:50:30,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-12-18 05:50:30,071 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:50:30,071 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] [2021-12-18 05:50:30,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 05:50:30,072 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:50:30,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:50:30,072 INFO L85 PathProgramCache]: Analyzing trace with hash 2111277653, now seen corresponding path program 1 times [2021-12-18 05:50:30,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:50:30,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944037574] [2021-12-18 05:50:30,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:30,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:50:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:50:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:50:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:50:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:50:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:50:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:50:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:50:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:50:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:50:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:50:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:50:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:50:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:50:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:50:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:50:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:50:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:50:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 05:50:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 05:50:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 05:50:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-18 05:50:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-12-18 05:50:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 05:50:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:50:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 05:50:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 05:50:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 05:50:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:30,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1042 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 1034 trivial. 0 not checked. [2021-12-18 05:50:30,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:50:30,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944037574] [2021-12-18 05:50:30,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944037574] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:50:30,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504291970] [2021-12-18 05:50:30,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:30,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:30,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:50:30,647 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) [2021-12-18 05:50:30,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 05:50:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:31,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 4535 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 05:50:31,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:50:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1042 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1036 trivial. 0 not checked. [2021-12-18 05:50:32,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:50:32,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504291970] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:50:32,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 05:50:32,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2021-12-18 05:50:32,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815697892] [2021-12-18 05:50:32,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:50:32,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 05:50:32,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:50:32,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 05:50:32,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-12-18 05:50:32,373 INFO L87 Difference]: Start difference. First operand 19556 states and 26947 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) [2021-12-18 05:50:33,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:50:33,692 INFO L93 Difference]: Finished difference Result 45246 states and 62352 transitions. [2021-12-18 05:50:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 05:50:33,692 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 [2021-12-18 05:50:33,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:50:33,816 INFO L225 Difference]: With dead ends: 45246 [2021-12-18 05:50:33,816 INFO L226 Difference]: Without dead ends: 25729 [2021-12-18 05:50:33,886 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 [2021-12-18 05:50:33,887 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 [2021-12-18 05:50:33,887 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] [2021-12-18 05:50:33,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25729 states. [2021-12-18 05:50:35,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25729 to 25715. [2021-12-18 05:50:35,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25715 states, 16578 states have (on average 1.2523826758354446) internal successors, (20762), 17165 states have internal predecessors, (20762), 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) [2021-12-18 05:50:35,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25715 states to 25715 states and 35394 transitions. [2021-12-18 05:50:35,236 INFO L78 Accepts]: Start accepts. Automaton has 25715 states and 35394 transitions. Word has length 418 [2021-12-18 05:50:35,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:50:35,237 INFO L470 AbstractCegarLoop]: Abstraction has 25715 states and 35394 transitions. [2021-12-18 05:50:35,237 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) [2021-12-18 05:50:35,237 INFO L276 IsEmpty]: Start isEmpty. Operand 25715 states and 35394 transitions. [2021-12-18 05:50:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2021-12-18 05:50:35,253 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:50:35,253 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, 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] [2021-12-18 05:50:35,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 05:50:35,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:35,472 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:50:35,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:50:35,472 INFO L85 PathProgramCache]: Analyzing trace with hash 280185539, now seen corresponding path program 1 times [2021-12-18 05:50:35,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:50:35,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547341002] [2021-12-18 05:50:35,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:35,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:50:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:50:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:50:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:50:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:50:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:50:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:50:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:50:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:50:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:50:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:50:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:50:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:50:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:50:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:50:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:50:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:50:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:50:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 05:50:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 05:50:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 05:50:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-18 05:50:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:36,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 05:50:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:36,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:36,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:36,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 05:50:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:36,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 05:50:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:36,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 1033 trivial. 0 not checked. [2021-12-18 05:50:36,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:50:36,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547341002] [2021-12-18 05:50:36,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547341002] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:50:36,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306243291] [2021-12-18 05:50:36,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:36,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:36,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:50:36,076 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) [2021-12-18 05:50:36,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 05:50:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:37,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 4241 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 05:50:37,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:50:37,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1061 trivial. 0 not checked. [2021-12-18 05:50:37,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:50:37,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306243291] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:50:37,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 05:50:37,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 10 [2021-12-18 05:50:37,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105572117] [2021-12-18 05:50:37,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:50:37,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 05:50:37,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:50:37,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 05:50:37,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-18 05:50:37,909 INFO L87 Difference]: Start difference. First operand 25715 states and 35394 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 05:50:39,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:50:39,434 INFO L93 Difference]: Finished difference Result 58652 states and 80765 transitions. [2021-12-18 05:50:39,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 05:50:39,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 419 [2021-12-18 05:50:39,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:50:39,550 INFO L225 Difference]: With dead ends: 58652 [2021-12-18 05:50:39,550 INFO L226 Difference]: Without dead ends: 32976 [2021-12-18 05:50:39,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-12-18 05:50:39,757 INFO L933 BasicCegarLoop]: 10139 mSDtfsCounter, 5116 mSDsluCounter, 15306 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5116 SdHoareTripleChecker+Valid, 25445 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:50:39,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5116 Valid, 25445 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 05:50:39,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32976 states. [2021-12-18 05:50:41,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32976 to 25719. [2021-12-18 05:50:41,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25719 states, 16582 states have (on average 1.2523217947171632) internal successors, (20766), 17169 states have internal predecessors, (20766), 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) [2021-12-18 05:50:41,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25719 states to 25719 states and 35398 transitions. [2021-12-18 05:50:41,222 INFO L78 Accepts]: Start accepts. Automaton has 25719 states and 35398 transitions. Word has length 419 [2021-12-18 05:50:41,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:50:41,223 INFO L470 AbstractCegarLoop]: Abstraction has 25719 states and 35398 transitions. [2021-12-18 05:50:41,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 05:50:41,223 INFO L276 IsEmpty]: Start isEmpty. Operand 25719 states and 35398 transitions. [2021-12-18 05:50:41,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-12-18 05:50:41,238 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:50:41,245 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] [2021-12-18 05:50:41,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-18 05:50:41,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:41,460 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:50:41,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:50:41,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1845655679, now seen corresponding path program 1 times [2021-12-18 05:50:41,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:50:41,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597960524] [2021-12-18 05:50:41,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:41,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:50:41,613 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 05:50:41,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576668402] [2021-12-18 05:50:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:41,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:41,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:50:41,615 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) [2021-12-18 05:50:41,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 05:50:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:42,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 4390 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 05:50:42,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:50:43,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-12-18 05:50:43,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:50:43,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:50:43,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597960524] [2021-12-18 05:50:43,405 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 05:50:43,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576668402] [2021-12-18 05:50:43,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576668402] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:50:43,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:50:43,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 05:50:43,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304921086] [2021-12-18 05:50:43,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:50:43,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 05:50:43,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:50:43,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 05:50:43,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 05:50:43,407 INFO L87 Difference]: Start difference. First operand 25719 states and 35398 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) [2021-12-18 05:50:44,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:50:44,849 INFO L93 Difference]: Finished difference Result 53725 states and 74392 transitions. [2021-12-18 05:50:44,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 05:50:44,852 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 [2021-12-18 05:50:44,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:50:44,977 INFO L225 Difference]: With dead ends: 53725 [2021-12-18 05:50:44,978 INFO L226 Difference]: Without dead ends: 28045 [2021-12-18 05:50:45,078 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 [2021-12-18 05:50:45,078 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 [2021-12-18 05:50:45,079 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] [2021-12-18 05:50:45,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28045 states. [2021-12-18 05:50:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28045 to 25721. [2021-12-18 05:50:46,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25721 states, 16584 states have (on average 1.2522913651712495) internal successors, (20768), 17171 states have internal predecessors, (20768), 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) [2021-12-18 05:50:46,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25721 states to 25721 states and 35400 transitions. [2021-12-18 05:50:46,527 INFO L78 Accepts]: Start accepts. Automaton has 25721 states and 35400 transitions. Word has length 407 [2021-12-18 05:50:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:50:46,527 INFO L470 AbstractCegarLoop]: Abstraction has 25721 states and 35400 transitions. [2021-12-18 05:50:46,528 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) [2021-12-18 05:50:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 25721 states and 35400 transitions. [2021-12-18 05:50:46,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-12-18 05:50:46,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:50:46,544 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] [2021-12-18 05:50:46,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-18 05:50:46,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:46,764 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:50:46,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:50:46,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1454617919, now seen corresponding path program 1 times [2021-12-18 05:50:46,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:50:46,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456112566] [2021-12-18 05:50:46,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:46,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:50:46,884 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 05:50:46,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520103628] [2021-12-18 05:50:46,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:46,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:46,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:50:46,900 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) [2021-12-18 05:50:46,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 05:50:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:48,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 4391 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 05:50:48,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:50:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2021-12-18 05:50:48,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:50:48,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:50:48,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456112566] [2021-12-18 05:50:48,784 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 05:50:48,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520103628] [2021-12-18 05:50:48,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520103628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:50:48,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:50:48,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 05:50:48,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882085000] [2021-12-18 05:50:48,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:50:48,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 05:50:48,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:50:48,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 05:50:48,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 05:50:48,785 INFO L87 Difference]: Start difference. First operand 25721 states and 35400 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 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) [2021-12-18 05:50:50,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:50:50,529 INFO L93 Difference]: Finished difference Result 53374 states and 73780 transitions. [2021-12-18 05:50:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 05:50:50,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 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 [2021-12-18 05:50:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:50:50,658 INFO L225 Difference]: With dead ends: 53374 [2021-12-18 05:50:50,658 INFO L226 Difference]: Without dead ends: 27692 [2021-12-18 05:50:50,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 05:50:50,745 INFO L933 BasicCegarLoop]: 5905 mSDtfsCounter, 1824 mSDsluCounter, 22266 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 28171 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 [2021-12-18 05:50:50,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1876 Valid, 28171 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-18 05:50:50,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27692 states. [2021-12-18 05:50:52,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27692 to 25729. [2021-12-18 05:50:52,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25729 states, 16592 states have (on average 1.2521697203471553) internal successors, (20776), 17179 states have internal predecessors, (20776), 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) [2021-12-18 05:50:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25729 states to 25729 states and 35408 transitions. [2021-12-18 05:50:52,289 INFO L78 Accepts]: Start accepts. Automaton has 25729 states and 35408 transitions. Word has length 407 [2021-12-18 05:50:52,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:50:52,290 INFO L470 AbstractCegarLoop]: Abstraction has 25729 states and 35408 transitions. [2021-12-18 05:50:52,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 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) [2021-12-18 05:50:52,290 INFO L276 IsEmpty]: Start isEmpty. Operand 25729 states and 35408 transitions. [2021-12-18 05:50:52,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2021-12-18 05:50:52,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:50:52,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:50:52,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-18 05:50:52,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:52,517 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:50:52,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:50:52,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1846729367, now seen corresponding path program 1 times [2021-12-18 05:50:52,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:50:52,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177320986] [2021-12-18 05:50:52,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:52,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:50:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:50:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:50:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:50:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:50:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:50:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:50:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:50:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:50:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:50:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:50:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:50:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:50:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:50:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:50:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:50:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:50:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:50:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:52,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 05:50:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 05:50:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 05:50:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-18 05:50:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-18 05:50:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-18 05:50:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-18 05:50:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:50:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:50:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 05:50:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 05:50:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1069 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2021-12-18 05:50:53,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:50:53,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177320986] [2021-12-18 05:50:53,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177320986] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:50:53,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233240961] [2021-12-18 05:50:53,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:53,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:53,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:50:53,164 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) [2021-12-18 05:50:53,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 05:50:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:50:54,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 4297 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 05:50:54,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:50:55,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1069 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1057 trivial. 0 not checked. [2021-12-18 05:50:55,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:50:55,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233240961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:50:55,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 05:50:55,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 14 [2021-12-18 05:50:55,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364619412] [2021-12-18 05:50:55,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:50:55,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 05:50:55,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:50:55,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 05:50:55,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-12-18 05:50:55,139 INFO L87 Difference]: Start difference. First operand 25729 states and 35408 transitions. Second operand has 8 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 3 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 05:50:57,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:50:57,408 INFO L93 Difference]: Finished difference Result 59476 states and 81943 transitions. [2021-12-18 05:50:57,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 05:50:57,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 3 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 437 [2021-12-18 05:50:57,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:50:57,526 INFO L225 Difference]: With dead ends: 59476 [2021-12-18 05:50:57,527 INFO L226 Difference]: Without dead ends: 33786 [2021-12-18 05:50:57,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-12-18 05:50:57,609 INFO L933 BasicCegarLoop]: 10338 mSDtfsCounter, 6850 mSDsluCounter, 56277 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6902 SdHoareTripleChecker+Valid, 66615 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-18 05:50:57,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6902 Valid, 66615 Invalid, 651 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [367 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-18 05:50:57,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33786 states. [2021-12-18 05:50:58,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33786 to 25757. [2021-12-18 05:50:59,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25757 states, 16612 states have (on average 1.2522273055622442) internal successors, (20802), 17199 states have internal predecessors, (20802), 7311 states have call successors, (7311), 1833 states have call predecessors, (7311), 1833 states have return successors, (7337), 7074 states have call predecessors, (7337), 7309 states have call successors, (7337) [2021-12-18 05:50:59,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25757 states to 25757 states and 35450 transitions. [2021-12-18 05:50:59,304 INFO L78 Accepts]: Start accepts. Automaton has 25757 states and 35450 transitions. Word has length 437 [2021-12-18 05:50:59,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:50:59,305 INFO L470 AbstractCegarLoop]: Abstraction has 25757 states and 35450 transitions. [2021-12-18 05:50:59,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 3 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-18 05:50:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand 25757 states and 35450 transitions. [2021-12-18 05:50:59,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-12-18 05:50:59,319 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:50:59,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:50:59,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-18 05:50:59,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:59,522 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:50:59,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:50:59,522 INFO L85 PathProgramCache]: Analyzing trace with hash -478066018, now seen corresponding path program 1 times [2021-12-18 05:50:59,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:50:59,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419313889] [2021-12-18 05:50:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:59,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:50:59,673 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 05:50:59,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276917206] [2021-12-18 05:50:59,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:50:59,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:50:59,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:50:59,675 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) [2021-12-18 05:50:59,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-18 05:51:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:01,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 4496 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 05:51:01,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:51:01,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2021-12-18 05:51:01,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:51:01,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:51:01,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419313889] [2021-12-18 05:51:01,507 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 05:51:01,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276917206] [2021-12-18 05:51:01,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276917206] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:51:01,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 05:51:01,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 05:51:01,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009628333] [2021-12-18 05:51:01,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:51:01,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 05:51:01,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:51:01,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 05:51:01,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 05:51:01,509 INFO L87 Difference]: Start difference. First operand 25757 states and 35450 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-18 05:51:03,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:51:03,109 INFO L93 Difference]: Finished difference Result 55276 states and 76734 transitions. [2021-12-18 05:51:03,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 05:51:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 424 [2021-12-18 05:51:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:51:03,245 INFO L225 Difference]: With dead ends: 55276 [2021-12-18 05:51:03,245 INFO L226 Difference]: Without dead ends: 29558 [2021-12-18 05:51:03,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 05:51:03,445 INFO L933 BasicCegarLoop]: 6499 mSDtfsCounter, 1447 mSDsluCounter, 11664 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 18163 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-18 05:51:03,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1597 Valid, 18163 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-18 05:51:03,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29558 states. [2021-12-18 05:51:05,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29558 to 25761. [2021-12-18 05:51:05,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25761 states, 16616 states have (on average 1.2521665864227252) internal successors, (20806), 17203 states have internal predecessors, (20806), 7311 states have call successors, (7311), 1833 states have call predecessors, (7311), 1833 states have return successors, (7337), 7074 states have call predecessors, (7337), 7309 states have call successors, (7337) [2021-12-18 05:51:05,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25761 states to 25761 states and 35454 transitions. [2021-12-18 05:51:05,244 INFO L78 Accepts]: Start accepts. Automaton has 25761 states and 35454 transitions. Word has length 424 [2021-12-18 05:51:05,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:51:05,245 INFO L470 AbstractCegarLoop]: Abstraction has 25761 states and 35454 transitions. [2021-12-18 05:51:05,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-18 05:51:05,245 INFO L276 IsEmpty]: Start isEmpty. Operand 25761 states and 35454 transitions. [2021-12-18 05:51:05,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2021-12-18 05:51:05,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:51:05,268 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, 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] [2021-12-18 05:51:05,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-18 05:51:05,483 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,SelfDestructingSolverStorable11 [2021-12-18 05:51:05,484 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:51:05,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:51:05,485 INFO L85 PathProgramCache]: Analyzing trace with hash 275578885, now seen corresponding path program 1 times [2021-12-18 05:51:05,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:51:05,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567497755] [2021-12-18 05:51:05,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:51:05,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:51:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:51:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:51:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:51:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:51:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:05,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:51:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:51:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:51:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:51:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:51:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:51:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:51:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:51:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:51:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:51:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:51:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:51:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:51:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 05:51:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 05:51:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 05:51:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-18 05:51:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2021-12-18 05:51:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-12-18 05:51:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-18 05:51:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-18 05:51:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-12-18 05:51:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 05:51:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 05:51:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:06,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1075 trivial. 0 not checked. [2021-12-18 05:51:06,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:51:06,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567497755] [2021-12-18 05:51:06,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567497755] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:51:06,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141273336] [2021-12-18 05:51:06,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:51:06,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:51:06,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:51:06,499 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) [2021-12-18 05:51:06,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-18 05:51:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:07,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 4558 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 05:51:07,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:51:08,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2021-12-18 05:51:08,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:51:08,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141273336] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:51:08,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 05:51:08,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 17 [2021-12-18 05:51:08,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118752547] [2021-12-18 05:51:08,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:51:08,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 05:51:08,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:51:08,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 05:51:08,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-12-18 05:51:08,416 INFO L87 Difference]: Start difference. First operand 25761 states and 35454 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 05:51:10,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:51:10,629 INFO L93 Difference]: Finished difference Result 77102 states and 106121 transitions. [2021-12-18 05:51:10,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 05:51:10,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 459 [2021-12-18 05:51:10,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:51:10,970 INFO L225 Difference]: With dead ends: 77102 [2021-12-18 05:51:10,970 INFO L226 Difference]: Without dead ends: 51328 [2021-12-18 05:51:11,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-12-18 05:51:11,051 INFO L933 BasicCegarLoop]: 10486 mSDtfsCounter, 5310 mSDsluCounter, 15860 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5310 SdHoareTripleChecker+Valid, 26346 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 05:51:11,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5310 Valid, 26346 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 05:51:11,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51328 states. [2021-12-18 05:51:13,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51328 to 51231. [2021-12-18 05:51:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51231 states, 33048 states have (on average 1.2526022754780926) internal successors, (41396), 34217 states have internal predecessors, (41396), 14547 states have call successors, (14547), 3634 states have call predecessors, (14547), 3635 states have return successors, (14601), 14079 states have call predecessors, (14601), 14545 states have call successors, (14601) [2021-12-18 05:51:13,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51231 states to 51231 states and 70544 transitions. [2021-12-18 05:51:13,884 INFO L78 Accepts]: Start accepts. Automaton has 51231 states and 70544 transitions. Word has length 459 [2021-12-18 05:51:13,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:51:13,885 INFO L470 AbstractCegarLoop]: Abstraction has 51231 states and 70544 transitions. [2021-12-18 05:51:13,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 05:51:13,886 INFO L276 IsEmpty]: Start isEmpty. Operand 51231 states and 70544 transitions. [2021-12-18 05:51:14,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-12-18 05:51:14,096 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:51:14,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:51:14,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-18 05:51:14,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-18 05:51:14,312 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:51:14,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:51:14,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1738247815, now seen corresponding path program 1 times [2021-12-18 05:51:14,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:51:14,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223821480] [2021-12-18 05:51:14,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:51:14,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:51:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:51:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:51:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:51:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:51:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:51:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:51:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:51:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:51:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:51:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:51:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:51:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:51:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:51:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:51:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:51:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:51:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:51:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-18 05:51:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 05:51:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-18 05:51:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-18 05:51:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-18 05:51:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-12-18 05:51:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-18 05:51:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-12-18 05:51:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-12-18 05:51:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-12-18 05:51:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-18 05:51:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 05:51:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:14,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2021-12-18 05:51:14,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:51:14,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223821480] [2021-12-18 05:51:14,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223821480] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:51:14,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894110670] [2021-12-18 05:51:14,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:51:14,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:51:14,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:51:14,995 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) [2021-12-18 05:51:15,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-18 05:51:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:16,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 4462 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-18 05:51:16,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:51:17,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2021-12-18 05:51:17,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:51:17,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894110670] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:51:17,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 05:51:17,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2021-12-18 05:51:17,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015412292] [2021-12-18 05:51:17,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:51:17,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 05:51:17,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:51:17,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 05:51:17,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-12-18 05:51:17,009 INFO L87 Difference]: Start difference. First operand 51231 states and 70544 transitions. Second operand has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 05:51:21,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:51:21,305 INFO L93 Difference]: Finished difference Result 119450 states and 164745 transitions. [2021-12-18 05:51:21,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-18 05:51:21,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 462 [2021-12-18 05:51:21,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:51:21,586 INFO L225 Difference]: With dead ends: 119450 [2021-12-18 05:51:21,586 INFO L226 Difference]: Without dead ends: 68258 [2021-12-18 05:51:21,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 585 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=878, Unknown=0, NotChecked=0, Total=1056 [2021-12-18 05:51:21,754 INFO L933 BasicCegarLoop]: 10541 mSDtfsCounter, 6965 mSDsluCounter, 56910 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6994 SdHoareTripleChecker+Valid, 67451 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-18 05:51:21,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6994 Valid, 67451 Invalid, 960 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [477 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-18 05:51:21,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68258 states. [2021-12-18 05:51:24,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68258 to 51231. [2021-12-18 05:51:24,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51231 states, 33048 states have (on average 1.2526022754780926) internal successors, (41396), 34217 states have internal predecessors, (41396), 14547 states have call successors, (14547), 3634 states have call predecessors, (14547), 3635 states have return successors, (14601), 14079 states have call predecessors, (14601), 14545 states have call successors, (14601) [2021-12-18 05:51:24,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51231 states to 51231 states and 70544 transitions. [2021-12-18 05:51:24,797 INFO L78 Accepts]: Start accepts. Automaton has 51231 states and 70544 transitions. Word has length 462 [2021-12-18 05:51:24,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 05:51:24,797 INFO L470 AbstractCegarLoop]: Abstraction has 51231 states and 70544 transitions. [2021-12-18 05:51:24,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 8 states have internal predecessors, (160), 3 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-12-18 05:51:24,798 INFO L276 IsEmpty]: Start isEmpty. Operand 51231 states and 70544 transitions. [2021-12-18 05:51:24,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-12-18 05:51:24,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 05:51:24,817 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, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 05:51:24,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-18 05:51:25,043 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,SelfDestructingSolverStorable13 [2021-12-18 05:51:25,044 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 05:51:25,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 05:51:25,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2064240147, now seen corresponding path program 1 times [2021-12-18 05:51:25,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 05:51:25,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693025245] [2021-12-18 05:51:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:51:25,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 05:51:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:51:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 05:51:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 05:51:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 05:51:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 05:51:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 05:51:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 05:51:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 05:51:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 05:51:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 05:51:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-18 05:51:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-18 05:51:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 05:51:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 05:51:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 05:51:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-18 05:51:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 05:51:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-18 05:51:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-18 05:51:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 05:51:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 05:51:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 05:51:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 05:51:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-18 05:51:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 05:51:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 05:51:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 05:51:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 05:51:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-18 05:51:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 05:51:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 05:51:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 05:51:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 05:51:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 05:51:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 05:51:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 05:51:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-12-18 05:51:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-12-18 05:51:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-12-18 05:51:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-18 05:51:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-12-18 05:51:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-12-18 05:51:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 05:51:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 05:51:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 05:51:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 05:51:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 05:51:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 05:51:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 05:51:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:25,684 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 907 trivial. 0 not checked. [2021-12-18 05:51:25,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 05:51:25,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693025245] [2021-12-18 05:51:25,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693025245] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 05:51:25,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918555822] [2021-12-18 05:51:25,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 05:51:25,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 05:51:25,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 05:51:25,686 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) [2021-12-18 05:51:25,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-18 05:51:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 05:51:27,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 4897 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 05:51:27,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 05:51:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2021-12-18 05:51:27,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 05:51:27,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918555822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 05:51:27,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 05:51:27,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2021-12-18 05:51:27,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535089749] [2021-12-18 05:51:27,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 05:51:27,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 05:51:27,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 05:51:27,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 05:51:27,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-12-18 05:51:27,971 INFO L87 Difference]: Start difference. First operand 51231 states and 70544 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 3 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2021-12-18 05:51:30,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 05:51:30,940 INFO L93 Difference]: Finished difference Result 102647 states and 142680 transitions. [2021-12-18 05:51:30,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 05:51:30,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 3 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 481 [2021-12-18 05:51:30,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 05:51:31,201 INFO L225 Difference]: With dead ends: 102647 [2021-12-18 05:51:31,201 INFO L226 Difference]: Without dead ends: 51455 [2021-12-18 05:51:31,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-18 05:51:31,471 INFO L933 BasicCegarLoop]: 5368 mSDtfsCounter, 49 mSDsluCounter, 16020 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 21388 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 05:51:31,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 21388 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 05:51:31,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51455 states.