./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-43_2a-drivers--net--ethernet--realtek--atp.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-43_2a-drivers--net--ethernet--realtek--atp.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 b615ef3e9ec848bbbdbcac9993fc5d609594ef1caaa279a862c4f038e6ec482e --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 08:38:54,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 08:38:54,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 08:38:54,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 08:38:54,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 08:38:54,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 08:38:54,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 08:38:54,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 08:38:54,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 08:38:54,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 08:38:54,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 08:38:54,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 08:38:54,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 08:38:54,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 08:38:54,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 08:38:54,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 08:38:54,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 08:38:54,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 08:38:54,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 08:38:54,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 08:38:54,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 08:38:54,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 08:38:54,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 08:38:54,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 08:38:54,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 08:38:54,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 08:38:54,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 08:38:54,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 08:38:54,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 08:38:54,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 08:38:54,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 08:38:54,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 08:38:54,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 08:38:54,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 08:38:54,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 08:38:54,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 08:38:54,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 08:38:54,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 08:38:54,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 08:38:54,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 08:38:54,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 08:38:54,957 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 08:38:54,977 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 08:38:54,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 08:38:54,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 08:38:54,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 08:38:54,979 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 08:38:54,979 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 08:38:54,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 08:38:54,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 08:38:54,980 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 08:38:54,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 08:38:54,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 08:38:54,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 08:38:54,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 08:38:54,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 08:38:54,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 08:38:54,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 08:38:54,981 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 08:38:54,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 08:38:54,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 08:38:54,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 08:38:54,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 08:38:54,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:38:54,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 08:38:54,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 08:38:54,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 08:38:54,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 08:38:54,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 08:38:54,983 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 08:38:54,984 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 08:38:54,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 08:38:54,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 08:38:54,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b615ef3e9ec848bbbdbcac9993fc5d609594ef1caaa279a862c4f038e6ec482e [2021-12-18 08:38:55,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 08:38:55,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 08:38:55,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 08:38:55,227 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 08:38:55,228 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 08:38:55,229 INFO L432 ainManager$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-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2021-12-18 08:38:55,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f27f4faf1/224db64627684de99bc6ccfaf6789245/FLAG3f88e596c [2021-12-18 08:38:55,934 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 08:38:55,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2021-12-18 08:38:55,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f27f4faf1/224db64627684de99bc6ccfaf6789245/FLAG3f88e596c [2021-12-18 08:38:56,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f27f4faf1/224db64627684de99bc6ccfaf6789245 [2021-12-18 08:38:56,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 08:38:56,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 08:38:56,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 08:38:56,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 08:38:56,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 08:38:56,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:38:56" (1/1) ... [2021-12-18 08:38:56,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a52416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:56, skipping insertion in model container [2021-12-18 08:38:56,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:38:56" (1/1) ... [2021-12-18 08:38:56,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 08:38:56,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 08:38:57,347 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-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i[208194,208207] [2021-12-18 08:38:57,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:38:57,420 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 08:38:57,648 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-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i[208194,208207] [2021-12-18 08:38:57,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 08:38:57,767 INFO L208 MainTranslator]: Completed translation [2021-12-18 08:38:57,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57 WrapperNode [2021-12-18 08:38:57,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 08:38:57,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 08:38:57,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 08:38:57,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 08:38:57,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57" (1/1) ... [2021-12-18 08:38:57,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57" (1/1) ... [2021-12-18 08:38:57,927 INFO L137 Inliner]: procedures = 151, calls = 691, calls flagged for inlining = 70, calls inlined = 67, statements flattened = 1758 [2021-12-18 08:38:57,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 08:38:57,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 08:38:57,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 08:38:57,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 08:38:57,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57" (1/1) ... [2021-12-18 08:38:57,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57" (1/1) ... [2021-12-18 08:38:57,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57" (1/1) ... [2021-12-18 08:38:57,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57" (1/1) ... [2021-12-18 08:38:58,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57" (1/1) ... [2021-12-18 08:38:58,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57" (1/1) ... [2021-12-18 08:38:58,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57" (1/1) ... [2021-12-18 08:38:58,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 08:38:58,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 08:38:58,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 08:38:58,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 08:38:58,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57" (1/1) ... [2021-12-18 08:38:58,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 08:38:58,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:38:58,159 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 08:38:58,185 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 08:38:58,201 INFO L130 BoogieDeclarations]: Found specification of procedure atp_probe1 [2021-12-18 08:38:58,201 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_probe1 [2021-12-18 08:38:58,201 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2021-12-18 08:38:58,201 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2021-12-18 08:38:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure read_block [2021-12-18 08:38:58,202 INFO L138 BoogieDeclarations]: Found implementation of procedure read_block [2021-12-18 08:38:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 08:38:58,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 08:38:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 08:38:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 08:38:58,203 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 08:38:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-18 08:38:58,203 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-18 08:38:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 08:38:58,203 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 08:38:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure write_byte_mode0 [2021-12-18 08:38:58,204 INFO L138 BoogieDeclarations]: Found implementation of procedure write_byte_mode0 [2021-12-18 08:38:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure write_byte_mode1 [2021-12-18 08:38:58,204 INFO L138 BoogieDeclarations]: Found implementation of procedure write_byte_mode1 [2021-12-18 08:38:58,205 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-18 08:38:58,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-18 08:38:58,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-18 08:38:58,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-18 08:38:58,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 08:38:58,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 08:38:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 08:38:58,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 08:38:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2021-12-18 08:38:58,206 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2021-12-18 08:38:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 08:38:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure net_rx [2021-12-18 08:38:58,207 INFO L138 BoogieDeclarations]: Found implementation of procedure net_rx [2021-12-18 08:38:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 08:38:58,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 08:38:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg_high [2021-12-18 08:38:58,208 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg_high [2021-12-18 08:38:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 08:38:58,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 08:38:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 08:38:58,208 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 08:38:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 08:38:58,209 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 08:38:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure read_nibble [2021-12-18 08:38:58,209 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nibble [2021-12-18 08:38:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 08:38:58,210 INFO L130 BoogieDeclarations]: Found specification of procedure hardware_init [2021-12-18 08:38:58,210 INFO L138 BoogieDeclarations]: Found implementation of procedure hardware_init [2021-12-18 08:38:58,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 08:38:58,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 08:38:58,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 08:38:58,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-18 08:38:58,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-18 08:38:58,211 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-18 08:38:58,211 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-18 08:38:58,211 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-18 08:38:58,211 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-18 08:38:58,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 08:38:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-18 08:38:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-18 08:38:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg_byte [2021-12-18 08:38:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg_byte [2021-12-18 08:38:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 08:38:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 08:38:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-18 08:38:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-18 08:38:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 08:38:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 08:38:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure inbyte [2021-12-18 08:38:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure inbyte [2021-12-18 08:38:58,215 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_send [2021-12-18 08:38:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_send [2021-12-18 08:38:58,216 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 08:38:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 08:38:58,216 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-18 08:38:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-18 08:38:58,216 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-18 08:38:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-18 08:38:58,216 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 08:38:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 08:38:58,217 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-18 08:38:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-18 08:38:58,217 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 08:38:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 08:38:58,217 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_op [2021-12-18 08:38:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_op [2021-12-18 08:38:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 08:38:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 08:38:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 08:38:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 08:38:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 08:38:58,612 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 08:38:58,614 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 08:38:59,126 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 08:38:59,783 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 08:38:59,793 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 08:38:59,794 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 08:38:59,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:38:59 BoogieIcfgContainer [2021-12-18 08:38:59,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 08:38:59,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 08:38:59,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 08:38:59,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 08:38:59,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 08:38:56" (1/3) ... [2021-12-18 08:38:59,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4276f67a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:38:59, skipping insertion in model container [2021-12-18 08:38:59,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:38:57" (2/3) ... [2021-12-18 08:38:59,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4276f67a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:38:59, skipping insertion in model container [2021-12-18 08:38:59,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:38:59" (3/3) ... [2021-12-18 08:38:59,803 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2021-12-18 08:38:59,808 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 08:38:59,808 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 08:38:59,850 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 08:38:59,856 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 08:38:59,857 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 08:38:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 735 states, 472 states have (on average 1.3241525423728813) internal successors, (625), 487 states have internal predecessors, (625), 223 states have call successors, (223), 39 states have call predecessors, (223), 38 states have return successors, (218), 216 states have call predecessors, (218), 218 states have call successors, (218) [2021-12-18 08:38:59,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-12-18 08:38:59,921 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:38:59,922 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 08:38:59,923 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:38:59,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:38:59,927 INFO L85 PathProgramCache]: Analyzing trace with hash -764789626, now seen corresponding path program 1 times [2021-12-18 08:38:59,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:38:59,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067856538] [2021-12-18 08:38:59,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:38:59,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 08:39:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 08:39:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 08:39:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:39:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 08:39:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 08:39:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 08:39:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 08:39:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 08:39:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 08:39:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 08:39:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:39:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:39:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:01,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:01,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:01,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1696 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2021-12-18 08:39:01,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:01,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067856538] [2021-12-18 08:39:01,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067856538] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:01,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:39:01,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 08:39:01,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937736771] [2021-12-18 08:39:01,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:01,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 08:39:01,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:01,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 08:39:01,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 08:39:01,051 INFO L87 Difference]: Start difference. First operand has 735 states, 472 states have (on average 1.3241525423728813) internal successors, (625), 487 states have internal predecessors, (625), 223 states have call successors, (223), 39 states have call predecessors, (223), 38 states have return successors, (218), 216 states have call predecessors, (218), 218 states have call successors, (218) Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-18 08:39:03,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:03,193 INFO L93 Difference]: Finished difference Result 1555 states and 2291 transitions. [2021-12-18 08:39:03,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 08:39:03,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 292 [2021-12-18 08:39:03,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:03,213 INFO L225 Difference]: With dead ends: 1555 [2021-12-18 08:39:03,213 INFO L226 Difference]: Without dead ends: 803 [2021-12-18 08:39:03,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:39:03,231 INFO L933 BasicCegarLoop]: 893 mSDtfsCounter, 724 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1114 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:03,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 2118 Invalid, 2316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1114 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-18 08:39:03,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2021-12-18 08:39:03,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 713. [2021-12-18 08:39:03,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 459 states have (on average 1.3115468409586057) internal successors, (602), 467 states have internal predecessors, (602), 216 states have call successors, (216), 38 states have call predecessors, (216), 37 states have return successors, (215), 213 states have call predecessors, (215), 215 states have call successors, (215) [2021-12-18 08:39:03,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1033 transitions. [2021-12-18 08:39:03,328 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1033 transitions. Word has length 292 [2021-12-18 08:39:03,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:03,328 INFO L470 AbstractCegarLoop]: Abstraction has 713 states and 1033 transitions. [2021-12-18 08:39:03,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (38), 6 states have call predecessors, (38), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-18 08:39:03,329 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1033 transitions. [2021-12-18 08:39:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-12-18 08:39:03,337 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:03,338 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 08:39:03,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 08:39:03,338 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:03,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:03,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2126471959, now seen corresponding path program 1 times [2021-12-18 08:39:03,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:03,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571592259] [2021-12-18 08:39:03,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:03,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-18 08:39:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 08:39:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 08:39:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 08:39:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-18 08:39:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 08:39:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 08:39:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 08:39:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 08:39:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 08:39:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-18 08:39:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-18 08:39:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:39:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:39:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:03,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2452 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2452 trivial. 0 not checked. [2021-12-18 08:39:03,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:03,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571592259] [2021-12-18 08:39:03,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571592259] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:03,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:39:03,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 08:39:03,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316904175] [2021-12-18 08:39:03,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:03,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 08:39:03,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:03,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 08:39:03,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:39:03,926 INFO L87 Difference]: Start difference. First operand 713 states and 1033 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 08:39:08,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:08,101 INFO L93 Difference]: Finished difference Result 2308 states and 3378 transitions. [2021-12-18 08:39:08,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 08:39:08,102 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 327 [2021-12-18 08:39:08,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:08,112 INFO L225 Difference]: With dead ends: 2308 [2021-12-18 08:39:08,113 INFO L226 Difference]: Without dead ends: 1605 [2021-12-18 08:39:08,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-18 08:39:08,117 INFO L933 BasicCegarLoop]: 956 mSDtfsCounter, 2150 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 2580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 3827 SdHoareTripleChecker+Invalid, 5788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2580 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:08,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2286 Valid, 3827 Invalid, 5788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2580 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-12-18 08:39:08,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2021-12-18 08:39:08,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1416. [2021-12-18 08:39:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 911 states have (on average 1.3084522502744238) internal successors, (1192), 927 states have internal predecessors, (1192), 429 states have call successors, (429), 76 states have call predecessors, (429), 75 states have return successors, (428), 424 states have call predecessors, (428), 428 states have call successors, (428) [2021-12-18 08:39:08,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 2049 transitions. [2021-12-18 08:39:08,200 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 2049 transitions. Word has length 327 [2021-12-18 08:39:08,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:08,201 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 2049 transitions. [2021-12-18 08:39:08,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 08:39:08,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 2049 transitions. [2021-12-18 08:39:08,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-12-18 08:39:08,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:08,214 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 08:39:08,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 08:39:08,215 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:08,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:08,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1666869582, now seen corresponding path program 1 times [2021-12-18 08:39:08,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:08,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954715316] [2021-12-18 08:39:08,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:08,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 08:39:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 08:39:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 08:39:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:39:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 08:39:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 08:39:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 08:39:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 08:39:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 08:39:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-18 08:39:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 08:39:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 08:39:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:39:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:39:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:08,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2452 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2452 trivial. 0 not checked. [2021-12-18 08:39:08,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:08,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954715316] [2021-12-18 08:39:08,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954715316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:08,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:39:08,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 08:39:08,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910175957] [2021-12-18 08:39:08,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:08,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 08:39:08,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:08,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 08:39:08,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:39:08,702 INFO L87 Difference]: Start difference. First operand 1416 states and 2049 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 08:39:13,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:13,001 INFO L93 Difference]: Finished difference Result 4604 states and 6724 transitions. [2021-12-18 08:39:13,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 08:39:13,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 326 [2021-12-18 08:39:13,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:13,022 INFO L225 Difference]: With dead ends: 4604 [2021-12-18 08:39:13,023 INFO L226 Difference]: Without dead ends: 3198 [2021-12-18 08:39:13,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-18 08:39:13,032 INFO L933 BasicCegarLoop]: 981 mSDtfsCounter, 2143 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 3645 mSolverCounterSat, 2546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 4240 SdHoareTripleChecker+Invalid, 6191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2546 IncrementalHoareTripleChecker+Valid, 3645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:13,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2279 Valid, 4240 Invalid, 6191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2546 Valid, 3645 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-18 08:39:13,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3198 states. [2021-12-18 08:39:13,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3198 to 2809. [2021-12-18 08:39:13,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 1803 states have (on average 1.3072656683305601) internal successors, (2357), 1842 states have internal predecessors, (2357), 854 states have call successors, (854), 152 states have call predecessors, (854), 151 states have return successors, (853), 838 states have call predecessors, (853), 853 states have call successors, (853) [2021-12-18 08:39:13,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 4064 transitions. [2021-12-18 08:39:13,195 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 4064 transitions. Word has length 326 [2021-12-18 08:39:13,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:13,196 INFO L470 AbstractCegarLoop]: Abstraction has 2809 states and 4064 transitions. [2021-12-18 08:39:13,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 08:39:13,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 4064 transitions. [2021-12-18 08:39:13,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-12-18 08:39:13,214 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:13,214 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 08:39:13,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 08:39:13,215 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:13,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:13,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1962599507, now seen corresponding path program 1 times [2021-12-18 08:39:13,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:13,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9140376] [2021-12-18 08:39:13,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:13,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 08:39:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-18 08:39:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 08:39:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 08:39:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-18 08:39:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 08:39:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 08:39:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 08:39:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 08:39:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 08:39:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 08:39:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:39:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:39:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1696 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2021-12-18 08:39:13,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:13,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9140376] [2021-12-18 08:39:13,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9140376] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:13,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:39:13,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 08:39:13,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668759243] [2021-12-18 08:39:13,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:13,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 08:39:13,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:13,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 08:39:13,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:39:13,644 INFO L87 Difference]: Start difference. First operand 2809 states and 4064 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-12-18 08:39:17,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:17,383 INFO L93 Difference]: Finished difference Result 9170 states and 13376 transitions. [2021-12-18 08:39:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 08:39:17,383 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 294 [2021-12-18 08:39:17,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:17,422 INFO L225 Difference]: With dead ends: 9170 [2021-12-18 08:39:17,422 INFO L226 Difference]: Without dead ends: 6371 [2021-12-18 08:39:17,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-18 08:39:17,440 INFO L933 BasicCegarLoop]: 942 mSDtfsCounter, 2646 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 2779 mSolverCounterSat, 3333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 6112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3333 IncrementalHoareTripleChecker+Valid, 2779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:17,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2782 Valid, 3514 Invalid, 6112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3333 Valid, 2779 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-18 08:39:17,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6371 states. [2021-12-18 08:39:17,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6371 to 5612. [2021-12-18 08:39:17,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5612 states, 3604 states have (on average 1.3054938956714761) internal successors, (4705), 3680 states have internal predecessors, (4705), 1703 states have call successors, (1703), 305 states have call predecessors, (1703), 304 states have return successors, (1702), 1674 states have call predecessors, (1702), 1702 states have call successors, (1702) [2021-12-18 08:39:17,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5612 states to 5612 states and 8110 transitions. [2021-12-18 08:39:17,819 INFO L78 Accepts]: Start accepts. Automaton has 5612 states and 8110 transitions. Word has length 294 [2021-12-18 08:39:17,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:17,821 INFO L470 AbstractCegarLoop]: Abstraction has 5612 states and 8110 transitions. [2021-12-18 08:39:17,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-12-18 08:39:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5612 states and 8110 transitions. [2021-12-18 08:39:17,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-12-18 08:39:17,841 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:17,842 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-18 08:39:17,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 08:39:17,842 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:17,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:17,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1156520858, now seen corresponding path program 1 times [2021-12-18 08:39:17,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:17,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275854085] [2021-12-18 08:39:17,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:17,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:17,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:17,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:17,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:17,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:17,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 08:39:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 08:39:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:39:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 08:39:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 08:39:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 08:39:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 08:39:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 08:39:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 08:39:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-18 08:39:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-18 08:39:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-18 08:39:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:39:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:18,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:39:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:18,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2452 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2452 trivial. 0 not checked. [2021-12-18 08:39:18,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:18,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275854085] [2021-12-18 08:39:18,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275854085] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:18,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 08:39:18,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 08:39:18,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067938292] [2021-12-18 08:39:18,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:18,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 08:39:18,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:18,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 08:39:18,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-18 08:39:18,313 INFO L87 Difference]: Start difference. First operand 5612 states and 8110 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 08:39:21,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:21,872 INFO L93 Difference]: Finished difference Result 18081 states and 26296 transitions. [2021-12-18 08:39:21,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 08:39:21,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 329 [2021-12-18 08:39:21,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:21,938 INFO L225 Difference]: With dead ends: 18081 [2021-12-18 08:39:21,938 INFO L226 Difference]: Without dead ends: 12479 [2021-12-18 08:39:21,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2021-12-18 08:39:21,968 INFO L933 BasicCegarLoop]: 942 mSDtfsCounter, 2647 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 2779 mSolverCounterSat, 3333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 6112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3333 IncrementalHoareTripleChecker+Valid, 2779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:21,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2783 Valid, 3514 Invalid, 6112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3333 Valid, 2779 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-18 08:39:21,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12479 states. [2021-12-18 08:39:22,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12479 to 11053. [2021-12-18 08:39:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11053 states, 7108 states have (on average 1.3028981429375353) internal successors, (9261), 7251 states have internal predecessors, (9261), 3336 states have call successors, (3336), 609 states have call predecessors, (3336), 608 states have return successors, (3335), 3285 states have call predecessors, (3335), 3335 states have call successors, (3335) [2021-12-18 08:39:22,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11053 states to 11053 states and 15932 transitions. [2021-12-18 08:39:22,646 INFO L78 Accepts]: Start accepts. Automaton has 11053 states and 15932 transitions. Word has length 329 [2021-12-18 08:39:22,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:22,646 INFO L470 AbstractCegarLoop]: Abstraction has 11053 states and 15932 transitions. [2021-12-18 08:39:22,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-12-18 08:39:22,647 INFO L276 IsEmpty]: Start isEmpty. Operand 11053 states and 15932 transitions. [2021-12-18 08:39:22,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-12-18 08:39:22,669 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:22,669 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:39:22,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 08:39:22,670 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:22,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:22,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1761206975, now seen corresponding path program 1 times [2021-12-18 08:39:22,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:22,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136631614] [2021-12-18 08:39:22,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:22,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 08:39:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 08:39:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 08:39:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 08:39:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 08:39:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 08:39:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 08:39:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:22,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 08:39:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 08:39:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-18 08:39:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 08:39:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-18 08:39:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-18 08:39:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:39:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:39:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2457 trivial. 0 not checked. [2021-12-18 08:39:23,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:23,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136631614] [2021-12-18 08:39:23,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136631614] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:39:23,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781138161] [2021-12-18 08:39:23,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:23,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:39:23,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:39:23,337 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 08:39:23,339 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 08:39:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:23,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 1963 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 08:39:23,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:39:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 1387 proven. 0 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2021-12-18 08:39:24,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:39:24,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781138161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:24,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:39:24,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-18 08:39:24,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534498193] [2021-12-18 08:39:24,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:24,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 08:39:24,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:24,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 08:39:24,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-18 08:39:24,283 INFO L87 Difference]: Start difference. First operand 11053 states and 15932 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-12-18 08:39:25,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:25,106 INFO L93 Difference]: Finished difference Result 33139 states and 48145 transitions. [2021-12-18 08:39:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 08:39:25,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 338 [2021-12-18 08:39:25,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:25,218 INFO L225 Difference]: With dead ends: 33139 [2021-12-18 08:39:25,218 INFO L226 Difference]: Without dead ends: 22096 [2021-12-18 08:39:25,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-18 08:39:25,271 INFO L933 BasicCegarLoop]: 1843 mSDtfsCounter, 988 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:25,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [988 Valid, 2848 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 08:39:25,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22096 states. [2021-12-18 08:39:26,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22096 to 22093. [2021-12-18 08:39:26,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22093 states, 14207 states have (on average 1.291053705919617) internal successors, (18342), 14493 states have internal predecessors, (18342), 6669 states have call successors, (6669), 1217 states have call predecessors, (6669), 1216 states have return successors, (6762), 6568 states have call predecessors, (6762), 6668 states have call successors, (6762) [2021-12-18 08:39:26,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22093 states to 22093 states and 31773 transitions. [2021-12-18 08:39:26,409 INFO L78 Accepts]: Start accepts. Automaton has 22093 states and 31773 transitions. Word has length 338 [2021-12-18 08:39:26,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:26,411 INFO L470 AbstractCegarLoop]: Abstraction has 22093 states and 31773 transitions. [2021-12-18 08:39:26,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-12-18 08:39:26,412 INFO L276 IsEmpty]: Start isEmpty. Operand 22093 states and 31773 transitions. [2021-12-18 08:39:26,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-12-18 08:39:26,436 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:26,436 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 08:39:26,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 08:39:26,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-18 08:39:26,652 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:26,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:26,652 INFO L85 PathProgramCache]: Analyzing trace with hash -828578683, now seen corresponding path program 1 times [2021-12-18 08:39:26,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:26,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418234402] [2021-12-18 08:39:26,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:26,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 08:39:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 08:39:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 08:39:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 08:39:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 08:39:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:26,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 08:39:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 08:39:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 08:39:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 08:39:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-18 08:39:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 08:39:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-18 08:39:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-18 08:39:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:39:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:39:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2457 trivial. 0 not checked. [2021-12-18 08:39:27,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:27,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418234402] [2021-12-18 08:39:27,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418234402] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:39:27,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525734290] [2021-12-18 08:39:27,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:27,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:39:27,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:39:27,349 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 08:39:27,351 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 08:39:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:27,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 1963 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 08:39:27,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:39:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2459 backedges. 1154 proven. 0 refuted. 0 times theorem prover too weak. 1305 trivial. 0 not checked. [2021-12-18 08:39:28,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:39:28,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525734290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:28,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:39:28,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-18 08:39:28,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334504039] [2021-12-18 08:39:28,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:28,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 08:39:28,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:28,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 08:39:28,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-18 08:39:28,430 INFO L87 Difference]: Start difference. First operand 22093 states and 31773 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (53), 3 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-12-18 08:39:29,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:29,364 INFO L93 Difference]: Finished difference Result 52849 states and 75972 transitions. [2021-12-18 08:39:29,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 08:39:29,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (53), 3 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 338 [2021-12-18 08:39:29,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:29,547 INFO L225 Difference]: With dead ends: 52849 [2021-12-18 08:39:29,547 INFO L226 Difference]: Without dead ends: 30766 [2021-12-18 08:39:29,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-18 08:39:29,653 INFO L933 BasicCegarLoop]: 1242 mSDtfsCounter, 928 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:29,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [928 Valid, 2235 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 08:39:29,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30766 states. [2021-12-18 08:39:30,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30766 to 30763. [2021-12-18 08:39:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30763 states, 19851 states have (on average 1.2849730492166642) internal successors, (25508), 20205 states have internal predecessors, (25508), 9132 states have call successors, (9132), 1780 states have call predecessors, (9132), 1779 states have return successors, (9371), 9011 states have call predecessors, (9371), 9131 states have call successors, (9371) [2021-12-18 08:39:31,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30763 states to 30763 states and 44011 transitions. [2021-12-18 08:39:31,221 INFO L78 Accepts]: Start accepts. Automaton has 30763 states and 44011 transitions. Word has length 338 [2021-12-18 08:39:31,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:31,222 INFO L470 AbstractCegarLoop]: Abstraction has 30763 states and 44011 transitions. [2021-12-18 08:39:31,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (53), 3 states have call predecessors, (53), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-12-18 08:39:31,222 INFO L276 IsEmpty]: Start isEmpty. Operand 30763 states and 44011 transitions. [2021-12-18 08:39:31,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-12-18 08:39:31,239 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:31,240 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-12-18 08:39:31,271 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 08:39:31,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-18 08:39:31,456 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:31,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:31,456 INFO L85 PathProgramCache]: Analyzing trace with hash 834957377, now seen corresponding path program 1 times [2021-12-18 08:39:31,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:31,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644633436] [2021-12-18 08:39:31,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:31,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 08:39:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 08:39:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 08:39:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 08:39:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 08:39:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 08:39:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 08:39:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 08:39:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 08:39:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 08:39:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 08:39:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:31,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 08:39:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:32,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:39:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:32,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:32,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:39:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1701 trivial. 0 not checked. [2021-12-18 08:39:32,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:32,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644633436] [2021-12-18 08:39:32,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644633436] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:39:32,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145267541] [2021-12-18 08:39:32,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:32,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:39:32,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:39:32,142 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 08:39:32,144 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 08:39:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:32,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 1849 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:39:32,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:39:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2021-12-18 08:39:33,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:39:33,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145267541] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:33,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:39:33,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2021-12-18 08:39:33,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079699085] [2021-12-18 08:39:33,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:33,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:39:33,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:33,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:39:33,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-12-18 08:39:33,032 INFO L87 Difference]: Start difference. First operand 30763 states and 44011 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 08:39:34,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:34,460 INFO L93 Difference]: Finished difference Result 77267 states and 110471 transitions. [2021-12-18 08:39:34,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:39:34,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 304 [2021-12-18 08:39:34,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:34,914 INFO L225 Difference]: With dead ends: 77267 [2021-12-18 08:39:34,915 INFO L226 Difference]: Without dead ends: 46514 [2021-12-18 08:39:35,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2021-12-18 08:39:35,039 INFO L933 BasicCegarLoop]: 1445 mSDtfsCounter, 1052 mSDsluCounter, 6795 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 8240 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:35,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 8240 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 08:39:35,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46514 states. [2021-12-18 08:39:36,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46514 to 46157. [2021-12-18 08:39:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46157 states, 29833 states have (on average 1.2860255421848288) internal successors, (38366), 30417 states have internal predecessors, (38366), 13613 states have call successors, (13613), 2659 states have call predecessors, (13613), 2710 states have return successors, (14072), 13428 states have call predecessors, (14072), 13612 states have call successors, (14072) [2021-12-18 08:39:37,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46157 states to 46157 states and 66051 transitions. [2021-12-18 08:39:37,036 INFO L78 Accepts]: Start accepts. Automaton has 46157 states and 66051 transitions. Word has length 304 [2021-12-18 08:39:37,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:37,036 INFO L470 AbstractCegarLoop]: Abstraction has 46157 states and 66051 transitions. [2021-12-18 08:39:37,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 08:39:37,037 INFO L276 IsEmpty]: Start isEmpty. Operand 46157 states and 66051 transitions. [2021-12-18 08:39:37,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-12-18 08:39:37,064 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:37,065 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-12-18 08:39:37,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-18 08:39:37,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:39:37,290 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:37,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:37,290 INFO L85 PathProgramCache]: Analyzing trace with hash 753789413, now seen corresponding path program 1 times [2021-12-18 08:39:37,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:37,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443613361] [2021-12-18 08:39:37,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:37,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 08:39:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 08:39:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 08:39:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 08:39:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 08:39:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 08:39:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 08:39:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 08:39:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-18 08:39:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 08:39:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 08:39:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-18 08:39:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:39:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:39:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:37,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2021-12-18 08:39:37,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:37,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443613361] [2021-12-18 08:39:37,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443613361] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:39:37,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931671382] [2021-12-18 08:39:37,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:37,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:39:37,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:39:38,000 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 08:39:38,029 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 08:39:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:38,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1851 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:39:38,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:39:38,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2021-12-18 08:39:38,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:39:38,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931671382] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:38,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:39:38,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-12-18 08:39:38,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238980609] [2021-12-18 08:39:38,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:38,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:39:38,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:38,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:39:38,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-12-18 08:39:38,954 INFO L87 Difference]: Start difference. First operand 46157 states and 66051 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 08:39:40,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:40,949 INFO L93 Difference]: Finished difference Result 108130 states and 154585 transitions. [2021-12-18 08:39:40,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:39:40,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 305 [2021-12-18 08:39:40,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:41,588 INFO L225 Difference]: With dead ends: 108130 [2021-12-18 08:39:41,589 INFO L226 Difference]: Without dead ends: 61983 [2021-12-18 08:39:41,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-12-18 08:39:41,728 INFO L933 BasicCegarLoop]: 1467 mSDtfsCounter, 1052 mSDsluCounter, 6871 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 8338 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:41,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 8338 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 08:39:41,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61983 states. [2021-12-18 08:39:43,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61983 to 61533. [2021-12-18 08:39:44,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61533 states, 39799 states have (on average 1.286665494107892) internal successors, (51208), 40623 states have internal predecessors, (51208), 18094 states have call successors, (18094), 3538 states have call predecessors, (18094), 3639 states have return successors, (18737), 17833 states have call predecessors, (18737), 18093 states have call successors, (18737) [2021-12-18 08:39:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61533 states to 61533 states and 88039 transitions. [2021-12-18 08:39:44,423 INFO L78 Accepts]: Start accepts. Automaton has 61533 states and 88039 transitions. Word has length 305 [2021-12-18 08:39:44,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:44,424 INFO L470 AbstractCegarLoop]: Abstraction has 61533 states and 88039 transitions. [2021-12-18 08:39:44,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 08:39:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand 61533 states and 88039 transitions. [2021-12-18 08:39:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-18 08:39:44,461 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:44,462 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-12-18 08:39:44,491 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 08:39:44,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:39:44,688 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:44,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:44,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2002009830, now seen corresponding path program 1 times [2021-12-18 08:39:44,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:44,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552162210] [2021-12-18 08:39:44,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:44,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 08:39:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 08:39:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 08:39:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 08:39:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-18 08:39:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-18 08:39:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 08:39:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-18 08:39:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:44,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 08:39:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 08:39:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-12-18 08:39:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-18 08:39:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:39:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:39:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2021-12-18 08:39:45,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:45,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552162210] [2021-12-18 08:39:45,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552162210] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:39:45,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678772561] [2021-12-18 08:39:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:45,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:39:45,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:39:45,093 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 08:39:45,094 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 08:39:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:45,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1853 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:39:45,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:39:46,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2021-12-18 08:39:46,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:39:46,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678772561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:46,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:39:46,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-12-18 08:39:46,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886874803] [2021-12-18 08:39:46,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:46,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:39:46,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:46,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:39:46,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-12-18 08:39:46,082 INFO L87 Difference]: Start difference. First operand 61533 states and 88039 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 08:39:48,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:48,496 INFO L93 Difference]: Finished difference Result 138879 states and 198551 transitions. [2021-12-18 08:39:48,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:39:48,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 306 [2021-12-18 08:39:48,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:48,856 INFO L225 Difference]: With dead ends: 138879 [2021-12-18 08:39:48,857 INFO L226 Difference]: Without dead ends: 77356 [2021-12-18 08:39:49,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-12-18 08:39:49,062 INFO L933 BasicCegarLoop]: 1482 mSDtfsCounter, 1052 mSDsluCounter, 6931 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 8413 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:49,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 8413 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 08:39:49,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77356 states. [2021-12-18 08:39:51,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77356 to 61563. [2021-12-18 08:39:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61563 states, 39823 states have (on average 1.286492730331718) internal successors, (51232), 40641 states have internal predecessors, (51232), 18094 states have call successors, (18094), 3538 states have call predecessors, (18094), 3645 states have return successors, (18746), 17845 states have call predecessors, (18746), 18093 states have call successors, (18746) [2021-12-18 08:39:51,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61563 states to 61563 states and 88072 transitions. [2021-12-18 08:39:51,942 INFO L78 Accepts]: Start accepts. Automaton has 61563 states and 88072 transitions. Word has length 306 [2021-12-18 08:39:51,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:51,943 INFO L470 AbstractCegarLoop]: Abstraction has 61563 states and 88072 transitions. [2021-12-18 08:39:51,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 08:39:51,943 INFO L276 IsEmpty]: Start isEmpty. Operand 61563 states and 88072 transitions. [2021-12-18 08:39:51,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-12-18 08:39:51,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:51,967 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2021-12-18 08:39:51,986 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 08:39:52,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-18 08:39:52,168 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:52,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:52,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1772032802, now seen corresponding path program 1 times [2021-12-18 08:39:52,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:52,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006355908] [2021-12-18 08:39:52,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:52,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-18 08:39:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 08:39:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-18 08:39:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 08:39:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 08:39:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 08:39:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 08:39:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 08:39:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:39:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:39:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:39:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 08:39:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:39:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:39:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:39:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:39:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-18 08:39:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-18 08:39:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 08:39:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:39:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:39:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:39:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:39:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:39:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:39:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2021-12-18 08:39:52,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:39:52,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006355908] [2021-12-18 08:39:52,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006355908] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:39:52,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855505811] [2021-12-18 08:39:52,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:52,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:39:52,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:39:52,852 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 08:39:52,862 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 08:39:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:53,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 08:39:53,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:39:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1702 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2021-12-18 08:39:53,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 08:39:53,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855505811] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 08:39:53,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 08:39:53,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-12-18 08:39:53,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24655568] [2021-12-18 08:39:53,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 08:39:53,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 08:39:53,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:39:53,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 08:39:53,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-12-18 08:39:53,654 INFO L87 Difference]: Start difference. First operand 61563 states and 88072 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 08:39:56,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:39:56,011 INFO L93 Difference]: Finished difference Result 138933 states and 198608 transitions. [2021-12-18 08:39:56,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 08:39:56,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 307 [2021-12-18 08:39:56,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:39:56,385 INFO L225 Difference]: With dead ends: 138933 [2021-12-18 08:39:56,386 INFO L226 Difference]: Without dead ends: 77380 [2021-12-18 08:39:56,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-12-18 08:39:56,616 INFO L933 BasicCegarLoop]: 1482 mSDtfsCounter, 1052 mSDsluCounter, 6931 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 8413 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 08:39:56,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 8413 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 08:39:56,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77380 states. [2021-12-18 08:39:58,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77380 to 61584. [2021-12-18 08:39:58,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61584 states, 39841 states have (on average 1.2863632940940237) internal successors, (51250), 40650 states have internal predecessors, (51250), 18094 states have call successors, (18094), 3538 states have call predecessors, (18094), 3648 states have return successors, (18749), 17857 states have call predecessors, (18749), 18093 states have call successors, (18749) [2021-12-18 08:39:59,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61584 states to 61584 states and 88093 transitions. [2021-12-18 08:39:59,502 INFO L78 Accepts]: Start accepts. Automaton has 61584 states and 88093 transitions. Word has length 307 [2021-12-18 08:39:59,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:39:59,503 INFO L470 AbstractCegarLoop]: Abstraction has 61584 states and 88093 transitions. [2021-12-18 08:39:59,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-18 08:39:59,503 INFO L276 IsEmpty]: Start isEmpty. Operand 61584 states and 88093 transitions. [2021-12-18 08:39:59,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-12-18 08:39:59,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:39:59,536 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 6, 6, 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, 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] [2021-12-18 08:39:59,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-18 08:39:59,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:39:59,764 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:39:59,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:39:59,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1969812472, now seen corresponding path program 1 times [2021-12-18 08:39:59,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:39:59,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860313827] [2021-12-18 08:39:59,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:39:59,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:39:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:59,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:39:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:59,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:59,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:39:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:59,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:39:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:59,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:39:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:59,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 08:39:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:59,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-18 08:39:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-18 08:39:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:39:59,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-18 08:39:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 08:40:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 08:40:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:40:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:40:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:40:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:40:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:40:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:40:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 08:40:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:40:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:40:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:40:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:40:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:40:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:40:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 08:40:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:40:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:40:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:40:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:40:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 08:40:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:40:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:40:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:40:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:40:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:40:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:40:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-18 08:40:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:40:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:40:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:40:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:40:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 08:40:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 08:40:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-18 08:40:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:40:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:40:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:40:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:40:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:40:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:40:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 1697 trivial. 0 not checked. [2021-12-18 08:40:00,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:40:00,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860313827] [2021-12-18 08:40:00,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860313827] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:40:00,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893889346] [2021-12-18 08:40:00,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:40:00,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:40:00,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:40:00,238 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 08:40:00,240 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 08:40:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:00,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 1920 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-18 08:40:00,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:40:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 1702 trivial. 0 not checked. [2021-12-18 08:40:01,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 08:40:01,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 1703 trivial. 0 not checked. [2021-12-18 08:40:01,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893889346] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 08:40:01,875 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 08:40:01,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2021-12-18 08:40:01,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389369455] [2021-12-18 08:40:01,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 08:40:01,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-18 08:40:01,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:40:01,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-18 08:40:01,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-12-18 08:40:01,878 INFO L87 Difference]: Start difference. First operand 61584 states and 88093 transitions. Second operand has 24 states, 24 states have (on average 7.416666666666667) internal successors, (178), 15 states have internal predecessors, (178), 5 states have call successors, (80), 9 states have call predecessors, (80), 7 states have return successors, (71), 6 states have call predecessors, (71), 5 states have call successors, (71) [2021-12-18 08:40:26,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:40:26,641 INFO L93 Difference]: Finished difference Result 195204 states and 283408 transitions. [2021-12-18 08:40:26,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-12-18 08:40:26,641 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.416666666666667) internal successors, (178), 15 states have internal predecessors, (178), 5 states have call successors, (80), 9 states have call predecessors, (80), 7 states have return successors, (71), 6 states have call predecessors, (71), 5 states have call successors, (71) Word has length 319 [2021-12-18 08:40:26,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:40:27,559 INFO L225 Difference]: With dead ends: 195204 [2021-12-18 08:40:27,559 INFO L226 Difference]: Without dead ends: 133042 [2021-12-18 08:40:27,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 900 GetRequests, 762 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7019 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2847, Invalid=16335, Unknown=0, NotChecked=0, Total=19182 [2021-12-18 08:40:27,795 INFO L933 BasicCegarLoop]: 2218 mSDtfsCounter, 8657 mSDsluCounter, 18612 mSDsCounter, 0 mSdLazyCounter, 26032 mSolverCounterSat, 10211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8999 SdHoareTripleChecker+Valid, 20830 SdHoareTripleChecker+Invalid, 36243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10211 IncrementalHoareTripleChecker+Valid, 26032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-12-18 08:40:27,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8999 Valid, 20830 Invalid, 36243 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10211 Valid, 26032 Invalid, 0 Unknown, 0 Unchecked, 17.6s Time] [2021-12-18 08:40:27,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133042 states. [2021-12-18 08:40:31,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133042 to 99363. [2021-12-18 08:40:32,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99363 states, 64225 states have (on average 1.2848267808485792) internal successors, (82518), 65639 states have internal predecessors, (82518), 29112 states have call successors, (29112), 5752 states have call predecessors, (29112), 6025 states have return successors, (30383), 28709 states have call predecessors, (30383), 29111 states have call successors, (30383) [2021-12-18 08:40:32,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99363 states to 99363 states and 142013 transitions. [2021-12-18 08:40:32,542 INFO L78 Accepts]: Start accepts. Automaton has 99363 states and 142013 transitions. Word has length 319 [2021-12-18 08:40:32,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 08:40:32,543 INFO L470 AbstractCegarLoop]: Abstraction has 99363 states and 142013 transitions. [2021-12-18 08:40:32,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 7.416666666666667) internal successors, (178), 15 states have internal predecessors, (178), 5 states have call successors, (80), 9 states have call predecessors, (80), 7 states have return successors, (71), 6 states have call predecessors, (71), 5 states have call successors, (71) [2021-12-18 08:40:32,543 INFO L276 IsEmpty]: Start isEmpty. Operand 99363 states and 142013 transitions. [2021-12-18 08:40:32,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-12-18 08:40:32,601 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 08:40:32,601 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 6, 6, 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, 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] [2021-12-18 08:40:32,629 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 08:40:32,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:40:32,828 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 08:40:32,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 08:40:32,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1037067647, now seen corresponding path program 1 times [2021-12-18 08:40:32,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 08:40:32,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475841085] [2021-12-18 08:40:32,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:40:32,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 08:40:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 08:40:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:40:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 08:40:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:40:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-18 08:40:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-18 08:40:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 08:40:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 08:40:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 08:40:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 08:40:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:40:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:40:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:40:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:40:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:40:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:40:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 08:40:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:40:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:40:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:40:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:40:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:40:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:40:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 08:40:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:40:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:40:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:40:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:40:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 08:40:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:40:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:40:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:40:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:40:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:40:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:40:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 08:40:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 08:40:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 08:40:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 08:40:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 08:40:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-18 08:40:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 08:40:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 08:40:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-18 08:40:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-18 08:40:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 08:40:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:40:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:40:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-18 08:40:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 08:40:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 08:40:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-18 08:40:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 08:40:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 08:40:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 08:40:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 08:40:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-18 08:40:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2477 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 2453 trivial. 0 not checked. [2021-12-18 08:40:33,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 08:40:33,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475841085] [2021-12-18 08:40:33,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475841085] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 08:40:33,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811011416] [2021-12-18 08:40:33,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 08:40:33,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 08:40:33,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 08:40:33,572 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 08:40:33,576 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 08:40:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 08:40:33,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 2036 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-18 08:40:33,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 08:40:34,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2477 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 2458 trivial. 0 not checked. [2021-12-18 08:40:34,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 08:40:35,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2477 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 2459 trivial. 0 not checked. [2021-12-18 08:40:35,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811011416] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 08:40:35,190 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 08:40:35,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2021-12-18 08:40:35,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002232216] [2021-12-18 08:40:35,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 08:40:35,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-18 08:40:35,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 08:40:35,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-18 08:40:35,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-12-18 08:40:35,193 INFO L87 Difference]: Start difference. First operand 99363 states and 142013 transitions. Second operand has 24 states, 24 states have (on average 7.875) internal successors, (189), 15 states have internal predecessors, (189), 5 states have call successors, (96), 9 states have call predecessors, (96), 7 states have return successors, (87), 6 states have call predecessors, (87), 5 states have call successors, (87) [2021-12-18 08:41:02,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 08:41:02,578 INFO L93 Difference]: Finished difference Result 320885 states and 464725 transitions. [2021-12-18 08:41:02,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-12-18 08:41:02,579 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 7.875) internal successors, (189), 15 states have internal predecessors, (189), 5 states have call successors, (96), 9 states have call predecessors, (96), 7 states have return successors, (87), 6 states have call predecessors, (87), 5 states have call successors, (87) Word has length 354 [2021-12-18 08:41:02,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 08:41:04,162 INFO L225 Difference]: With dead ends: 320885 [2021-12-18 08:41:04,175 INFO L226 Difference]: Without dead ends: 220566 [2021-12-18 08:41:04,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 848 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7111 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2847, Invalid=16335, Unknown=0, NotChecked=0, Total=19182 [2021-12-18 08:41:04,625 INFO L933 BasicCegarLoop]: 1987 mSDtfsCounter, 8966 mSDsluCounter, 17798 mSDsCounter, 0 mSdLazyCounter, 26048 mSolverCounterSat, 10851 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9307 SdHoareTripleChecker+Valid, 19785 SdHoareTripleChecker+Invalid, 36899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10851 IncrementalHoareTripleChecker+Valid, 26048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-12-18 08:41:04,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9307 Valid, 19785 Invalid, 36899 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10851 Valid, 26048 Invalid, 0 Unknown, 0 Unchecked, 16.8s Time] [2021-12-18 08:41:04,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220566 states.