./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.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 b83c28af83745ba79af1b1ebec4b495db7aa2efb3702685bbdc4b86421ef4c0a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:07:07,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:07:07,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:07:07,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:07:07,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:07:07,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:07:07,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:07:07,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:07:07,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:07:07,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:07:07,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:07:07,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:07:07,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:07:07,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:07:07,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:07:07,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:07:07,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:07:07,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:07:07,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:07:07,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:07:07,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:07:07,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:07:07,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:07:07,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:07:07,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:07:07,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:07:07,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:07:07,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:07:07,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:07:07,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:07:07,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:07:07,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:07:07,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:07:07,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:07:07,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:07:07,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:07:07,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:07:07,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:07:07,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:07:07,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:07:07,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:07:07,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:07:07,992 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:07:07,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:07:07,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:07:07,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:07:07,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:07:07,995 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:07:07,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:07:07,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:07:07,996 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:07:07,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:07:07,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:07:07,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:07:07,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:07:07,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:07:07,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:07:07,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:07:07,998 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:07:07,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:07:07,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:07:07,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:07:07,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:07:07,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:07:07,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:07:07,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:07:07,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:07:08,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:07:08,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:07:08,006 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:07:08,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:07:08,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:07:08,007 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b83c28af83745ba79af1b1ebec4b495db7aa2efb3702685bbdc4b86421ef4c0a [2021-12-28 04:07:08,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:07:08,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:07:08,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:07:08,286 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:07:08,286 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:07:08,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-28 04:07:08,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bcafc3f8/0eedac4653ea4b28afd9aa86f62abee7/FLAG4165ee9d5 [2021-12-28 04:07:08,974 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:07:08,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-28 04:07:09,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bcafc3f8/0eedac4653ea4b28afd9aa86f62abee7/FLAG4165ee9d5 [2021-12-28 04:07:09,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bcafc3f8/0eedac4653ea4b28afd9aa86f62abee7 [2021-12-28 04:07:09,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:07:09,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:07:09,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:07:09,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:07:09,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:07:09,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:07:09" (1/1) ... [2021-12-28 04:07:09,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a88794b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:09, skipping insertion in model container [2021-12-28 04:07:09,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:07:09" (1/1) ... [2021-12-28 04:07:09,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:07:09,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:07:10,324 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-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i[216887,216900] [2021-12-28 04:07:10,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:07:10,354 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:07:10,577 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-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i[216887,216900] [2021-12-28 04:07:10,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:07:10,725 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:07:10,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10 WrapperNode [2021-12-28 04:07:10,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:07:10,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:07:10,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:07:10,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:07:10,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10" (1/1) ... [2021-12-28 04:07:10,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10" (1/1) ... [2021-12-28 04:07:10,894 INFO L137 Inliner]: procedures = 187, calls = 873, calls flagged for inlining = 93, calls inlined = 91, statements flattened = 3212 [2021-12-28 04:07:10,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:07:10,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:07:10,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:07:10,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:07:10,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10" (1/1) ... [2021-12-28 04:07:10,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10" (1/1) ... [2021-12-28 04:07:10,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10" (1/1) ... [2021-12-28 04:07:10,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10" (1/1) ... [2021-12-28 04:07:11,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10" (1/1) ... [2021-12-28 04:07:11,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10" (1/1) ... [2021-12-28 04:07:11,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10" (1/1) ... [2021-12-28 04:07:11,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:07:11,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:07:11,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:07:11,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:07:11,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10" (1/1) ... [2021-12-28 04:07:11,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:07:11,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:07:11,084 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) [2021-12-28 04:07:11,105 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 [2021-12-28 04:07:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2021-12-28 04:07:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2021-12-28 04:07:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2021-12-28 04:07:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2021-12-28 04:07:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:07:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-28 04:07:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-12-28 04:07:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-12-28 04:07:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:07:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:07:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:07:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:07:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:07:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:07:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:07:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-28 04:07:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-28 04:07:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-28 04:07:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-28 04:07:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2021-12-28 04:07:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2021-12-28 04:07:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:07:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:07:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 04:07:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 04:07:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:07:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:07:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 04:07:11,137 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 04:07:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-28 04:07:11,137 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-28 04:07:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:07:11,137 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:07:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2021-12-28 04:07:11,137 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2021-12-28 04:07:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:07:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:07:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:07:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 04:07:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 04:07:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:07:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:07:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:07:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:07:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 04:07:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 04:07:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-28 04:07:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-28 04:07:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:07:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-28 04:07:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-28 04:07:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:07:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:07:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2021-12-28 04:07:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2021-12-28 04:07:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2021-12-28 04:07:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2021-12-28 04:07:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:07:11,142 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-28 04:07:11,142 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-28 04:07:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2021-12-28 04:07:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2021-12-28 04:07:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:07:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:07:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:07:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-12-28 04:07:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-12-28 04:07:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2021-12-28 04:07:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2021-12-28 04:07:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-28 04:07:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-28 04:07:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2021-12-28 04:07:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2021-12-28 04:07:11,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:07:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-28 04:07:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-28 04:07:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 04:07:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 04:07:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-28 04:07:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-28 04:07:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2021-12-28 04:07:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2021-12-28 04:07:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2021-12-28 04:07:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2021-12-28 04:07:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:07:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-12-28 04:07:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-12-28 04:07:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:07:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2021-12-28 04:07:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2021-12-28 04:07:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-28 04:07:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-28 04:07:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2021-12-28 04:07:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2021-12-28 04:07:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 04:07:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 04:07:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:07:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:07:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2021-12-28 04:07:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2021-12-28 04:07:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-28 04:07:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-28 04:07:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 04:07:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 04:07:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 04:07:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 04:07:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 04:07:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 04:07:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:07:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:07:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:07:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-28 04:07:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-28 04:07:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2021-12-28 04:07:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2021-12-28 04:07:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-28 04:07:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-28 04:07:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:07:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:07:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:07:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2021-12-28 04:07:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2021-12-28 04:07:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-28 04:07:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-28 04:07:11,646 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:07:11,648 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:07:11,838 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:07:13,475 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:07:13,485 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:07:13,485 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:07:13,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:07:13 BoogieIcfgContainer [2021-12-28 04:07:13,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:07:13,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:07:13,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:07:13,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:07:13,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:07:09" (1/3) ... [2021-12-28 04:07:13,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2226b4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:07:13, skipping insertion in model container [2021-12-28 04:07:13,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:07:10" (2/3) ... [2021-12-28 04:07:13,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2226b4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:07:13, skipping insertion in model container [2021-12-28 04:07:13,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:07:13" (3/3) ... [2021-12-28 04:07:13,493 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-28 04:07:13,496 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:07:13,497 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:07:13,531 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:07:13,535 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 [2021-12-28 04:07:13,536 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:07:13,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 1106 states, 816 states have (on average 1.4227941176470589) internal successors, (1161), 848 states have internal predecessors, (1161), 236 states have call successors, (236), 53 states have call predecessors, (236), 52 states have return successors, (231), 229 states have call predecessors, (231), 231 states have call successors, (231) [2021-12-28 04:07:13,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-28 04:07:13,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:13,592 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-12-28 04:07:13,593 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:13,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:13,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1170411247, now seen corresponding path program 1 times [2021-12-28 04:07:13,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:13,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810899488] [2021-12-28 04:07:13,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:13,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:13,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:13,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:13,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:07:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:07:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:07:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:07:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:07:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 04:07:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:07:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:07:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:07:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:07:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:07:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:07:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:14,252 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-28 04:07:14,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:14,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810899488] [2021-12-28 04:07:14,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810899488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:14,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:14,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:07:14,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112653439] [2021-12-28 04:07:14,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:14,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:07:14,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:14,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:07:14,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:07:14,279 INFO L87 Difference]: Start difference. First operand has 1106 states, 816 states have (on average 1.4227941176470589) internal successors, (1161), 848 states have internal predecessors, (1161), 236 states have call successors, (236), 53 states have call predecessors, (236), 52 states have return successors, (231), 229 states have call predecessors, (231), 231 states have call successors, (231) Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:07:16,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:07:18,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:07:18,545 INFO L93 Difference]: Finished difference Result 2338 states and 3505 transitions. [2021-12-28 04:07:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:07:18,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2021-12-28 04:07:18,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:07:18,561 INFO L225 Difference]: With dead ends: 2338 [2021-12-28 04:07:18,561 INFO L226 Difference]: Without dead ends: 1194 [2021-12-28 04:07:18,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:07:18,575 INFO L933 BasicCegarLoop]: 1528 mSDtfsCounter, 1085 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 3662 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:07:18,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1139 Valid, 3662 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [649 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-28 04:07:18,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2021-12-28 04:07:18,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1064. [2021-12-28 04:07:18,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 787 states have (on average 1.4142312579415501) internal successors, (1113), 811 states have internal predecessors, (1113), 224 states have call successors, (224), 52 states have call predecessors, (224), 52 states have return successors, (224), 222 states have call predecessors, (224), 224 states have call successors, (224) [2021-12-28 04:07:18,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1561 transitions. [2021-12-28 04:07:18,692 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1561 transitions. Word has length 161 [2021-12-28 04:07:18,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:07:18,693 INFO L470 AbstractCegarLoop]: Abstraction has 1064 states and 1561 transitions. [2021-12-28 04:07:18,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:07:18,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1561 transitions. [2021-12-28 04:07:18,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-28 04:07:18,697 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:18,697 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-12-28 04:07:18,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:07:18,698 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:18,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:18,698 INFO L85 PathProgramCache]: Analyzing trace with hash -448386267, now seen corresponding path program 1 times [2021-12-28 04:07:18,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:18,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587361446] [2021-12-28 04:07:18,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:18,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:07:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:07:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:07:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:07:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:07:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 04:07:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:07:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:07:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:07:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:07:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:07:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:07:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:18,938 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-12-28 04:07:18,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:18,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587361446] [2021-12-28 04:07:18,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587361446] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:18,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:18,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:07:18,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793068496] [2021-12-28 04:07:18,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:18,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:07:18,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:18,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:07:18,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:07:18,941 INFO L87 Difference]: Start difference. First operand 1064 states and 1561 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-28 04:07:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:07:24,075 INFO L93 Difference]: Finished difference Result 2884 states and 4254 transitions. [2021-12-28 04:07:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:07:24,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 161 [2021-12-28 04:07:24,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:07:24,083 INFO L225 Difference]: With dead ends: 2884 [2021-12-28 04:07:24,083 INFO L226 Difference]: Without dead ends: 1856 [2021-12-28 04:07:24,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-28 04:07:24,087 INFO L933 BasicCegarLoop]: 1532 mSDtfsCounter, 2328 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 2925 mSolverCounterSat, 1207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 4269 SdHoareTripleChecker+Invalid, 4132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 2925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:07:24,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2467 Valid, 4269 Invalid, 4132 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1207 Valid, 2925 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-28 04:07:24,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2021-12-28 04:07:24,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1624. [2021-12-28 04:07:24,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1191 states have (on average 1.397984886649874) internal successors, (1665), 1224 states have internal predecessors, (1665), 341 states have call successors, (341), 91 states have call predecessors, (341), 91 states have return successors, (341), 338 states have call predecessors, (341), 341 states have call successors, (341) [2021-12-28 04:07:24,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2347 transitions. [2021-12-28 04:07:24,171 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2347 transitions. Word has length 161 [2021-12-28 04:07:24,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:07:24,173 INFO L470 AbstractCegarLoop]: Abstraction has 1624 states and 2347 transitions. [2021-12-28 04:07:24,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-28 04:07:24,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2347 transitions. [2021-12-28 04:07:24,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-28 04:07:24,180 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:24,181 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:07:24,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:07:24,181 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:24,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1775569213, now seen corresponding path program 1 times [2021-12-28 04:07:24,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:24,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139088799] [2021-12-28 04:07:24,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:24,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:07:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:07:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:07:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:07:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:07:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 04:07:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:07:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:07:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:07:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:07:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:07:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:07:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:07:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 04:07:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 04:07:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2021-12-28 04:07:24,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:24,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139088799] [2021-12-28 04:07:24,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139088799] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:24,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:24,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:07:24,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56566751] [2021-12-28 04:07:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:24,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:07:24,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:24,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:07:24,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:07:24,470 INFO L87 Difference]: Start difference. First operand 1624 states and 2347 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-28 04:07:26,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:07:28,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:07:28,534 INFO L93 Difference]: Finished difference Result 3434 states and 5029 transitions. [2021-12-28 04:07:28,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 04:07:28,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 222 [2021-12-28 04:07:28,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:07:28,545 INFO L225 Difference]: With dead ends: 3434 [2021-12-28 04:07:28,545 INFO L226 Difference]: Without dead ends: 1856 [2021-12-28 04:07:28,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:07:28,554 INFO L933 BasicCegarLoop]: 1453 mSDtfsCounter, 2780 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 1227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2921 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1227 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:07:28,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2921 Valid, 2897 Invalid, 2434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1227 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-28 04:07:28,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2021-12-28 04:07:28,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1624. [2021-12-28 04:07:28,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1191 states have (on average 1.396305625524769) internal successors, (1663), 1224 states have internal predecessors, (1663), 341 states have call successors, (341), 91 states have call predecessors, (341), 91 states have return successors, (341), 338 states have call predecessors, (341), 341 states have call successors, (341) [2021-12-28 04:07:28,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2345 transitions. [2021-12-28 04:07:28,622 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2345 transitions. Word has length 222 [2021-12-28 04:07:28,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:07:28,624 INFO L470 AbstractCegarLoop]: Abstraction has 1624 states and 2345 transitions. [2021-12-28 04:07:28,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-28 04:07:28,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2345 transitions. [2021-12-28 04:07:28,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-28 04:07:28,628 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:28,628 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:07:28,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:07:28,629 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:28,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:28,629 INFO L85 PathProgramCache]: Analyzing trace with hash 132888577, now seen corresponding path program 1 times [2021-12-28 04:07:28,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:28,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673318165] [2021-12-28 04:07:28,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:28,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:07:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:07:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:07:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:07:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:07:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 04:07:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:07:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:07:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:07:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:07:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:07:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:07:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:07:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 04:07:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 04:07:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2021-12-28 04:07:28,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:28,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673318165] [2021-12-28 04:07:28,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673318165] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:28,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:28,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 04:07:28,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072290291] [2021-12-28 04:07:28,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:28,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 04:07:28,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:28,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 04:07:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:07:28,929 INFO L87 Difference]: Start difference. First operand 1624 states and 2345 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-28 04:07:33,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:07:33,210 INFO L93 Difference]: Finished difference Result 3438 states and 5029 transitions. [2021-12-28 04:07:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:07:33,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 222 [2021-12-28 04:07:33,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:07:33,218 INFO L225 Difference]: With dead ends: 3438 [2021-12-28 04:07:33,218 INFO L226 Difference]: Without dead ends: 1856 [2021-12-28 04:07:33,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:07:33,223 INFO L933 BasicCegarLoop]: 1462 mSDtfsCounter, 1195 mSDsluCounter, 3188 mSDsCounter, 0 mSdLazyCounter, 2920 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 4650 SdHoareTripleChecker+Invalid, 3572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:07:33,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 4650 Invalid, 3572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2920 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-28 04:07:33,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2021-12-28 04:07:33,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1624. [2021-12-28 04:07:33,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1191 states have (on average 1.3946263643996641) internal successors, (1661), 1224 states have internal predecessors, (1661), 341 states have call successors, (341), 91 states have call predecessors, (341), 91 states have return successors, (341), 338 states have call predecessors, (341), 341 states have call successors, (341) [2021-12-28 04:07:33,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2343 transitions. [2021-12-28 04:07:33,272 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2343 transitions. Word has length 222 [2021-12-28 04:07:33,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:07:33,273 INFO L470 AbstractCegarLoop]: Abstraction has 1624 states and 2343 transitions. [2021-12-28 04:07:33,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-28 04:07:33,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2343 transitions. [2021-12-28 04:07:33,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-28 04:07:33,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:33,278 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:07:33,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:07:33,278 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:33,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:33,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1941303628, now seen corresponding path program 1 times [2021-12-28 04:07:33,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:33,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80257852] [2021-12-28 04:07:33,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:33,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:07:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:07:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:07:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:07:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:07:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 04:07:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:07:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:07:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:07:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:07:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:07:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:07:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:07:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-28 04:07:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:07:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:33,595 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2021-12-28 04:07:33,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:33,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80257852] [2021-12-28 04:07:33,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80257852] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:33,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:33,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 04:07:33,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255284756] [2021-12-28 04:07:33,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:33,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 04:07:33,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:33,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 04:07:33,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:07:33,597 INFO L87 Difference]: Start difference. First operand 1624 states and 2343 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-28 04:07:38,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:07:38,097 INFO L93 Difference]: Finished difference Result 2446 states and 3732 transitions. [2021-12-28 04:07:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 04:07:38,097 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 225 [2021-12-28 04:07:38,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:07:38,112 INFO L225 Difference]: With dead ends: 2446 [2021-12-28 04:07:38,113 INFO L226 Difference]: Without dead ends: 2444 [2021-12-28 04:07:38,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:07:38,115 INFO L933 BasicCegarLoop]: 2063 mSDtfsCounter, 2396 mSDsluCounter, 3820 mSDsCounter, 0 mSdLazyCounter, 2862 mSolverCounterSat, 1171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2486 SdHoareTripleChecker+Valid, 5883 SdHoareTripleChecker+Invalid, 4033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1171 IncrementalHoareTripleChecker+Valid, 2862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:07:38,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2486 Valid, 5883 Invalid, 4033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1171 Valid, 2862 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-28 04:07:38,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2021-12-28 04:07:38,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 1626. [2021-12-28 04:07:38,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1193 states have (on average 1.393964794635373) internal successors, (1663), 1226 states have internal predecessors, (1663), 341 states have call successors, (341), 91 states have call predecessors, (341), 91 states have return successors, (341), 338 states have call predecessors, (341), 341 states have call successors, (341) [2021-12-28 04:07:38,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2345 transitions. [2021-12-28 04:07:38,199 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2345 transitions. Word has length 225 [2021-12-28 04:07:38,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:07:38,199 INFO L470 AbstractCegarLoop]: Abstraction has 1626 states and 2345 transitions. [2021-12-28 04:07:38,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2021-12-28 04:07:38,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2345 transitions. [2021-12-28 04:07:38,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-12-28 04:07:38,204 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:38,204 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:07:38,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:07:38,204 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:38,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:38,205 INFO L85 PathProgramCache]: Analyzing trace with hash -880059583, now seen corresponding path program 1 times [2021-12-28 04:07:38,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:38,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566202524] [2021-12-28 04:07:38,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:38,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:07:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:07:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:07:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:07:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:07:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 04:07:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:07:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:07:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:07:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:07:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:07:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:07:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:07:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-28 04:07:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:07:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-28 04:07:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2021-12-28 04:07:38,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:38,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566202524] [2021-12-28 04:07:38,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566202524] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:38,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:38,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 04:07:38,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417902938] [2021-12-28 04:07:38,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:38,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 04:07:38,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:38,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 04:07:38,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:07:38,532 INFO L87 Difference]: Start difference. First operand 1626 states and 2345 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-28 04:07:41,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:07:43,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:07:46,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:07:46,177 INFO L93 Difference]: Finished difference Result 4028 states and 6019 transitions. [2021-12-28 04:07:46,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:07:46,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 235 [2021-12-28 04:07:46,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:07:46,188 INFO L225 Difference]: With dead ends: 4028 [2021-12-28 04:07:46,188 INFO L226 Difference]: Without dead ends: 2448 [2021-12-28 04:07:46,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-28 04:07:46,194 INFO L933 BasicCegarLoop]: 1778 mSDtfsCounter, 3428 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 2944 mSolverCounterSat, 1521 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3700 SdHoareTripleChecker+Valid, 4604 SdHoareTripleChecker+Invalid, 4466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1521 IncrementalHoareTripleChecker+Valid, 2944 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:07:46,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3700 Valid, 4604 Invalid, 4466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1521 Valid, 2944 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-12-28 04:07:46,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2021-12-28 04:07:46,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 1627. [2021-12-28 04:07:46,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1194 states have (on average 1.3936348408710217) internal successors, (1664), 1227 states have internal predecessors, (1664), 341 states have call successors, (341), 91 states have call predecessors, (341), 91 states have return successors, (341), 338 states have call predecessors, (341), 341 states have call successors, (341) [2021-12-28 04:07:46,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2346 transitions. [2021-12-28 04:07:46,277 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2346 transitions. Word has length 235 [2021-12-28 04:07:46,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:07:46,277 INFO L470 AbstractCegarLoop]: Abstraction has 1627 states and 2346 transitions. [2021-12-28 04:07:46,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-28 04:07:46,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2346 transitions. [2021-12-28 04:07:46,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-12-28 04:07:46,282 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:46,283 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:07:46,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 04:07:46,283 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:46,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:46,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1720594174, now seen corresponding path program 1 times [2021-12-28 04:07:46,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:46,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925225857] [2021-12-28 04:07:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:46,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:07:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:07:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:07:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:07:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:07:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 04:07:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:07:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:07:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:07:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:07:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:07:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:07:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:07:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-28 04:07:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:07:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-28 04:07:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:46,523 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2021-12-28 04:07:46,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:46,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925225857] [2021-12-28 04:07:46,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925225857] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:46,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:46,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:07:46,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39813749] [2021-12-28 04:07:46,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:46,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:07:46,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:46,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:07:46,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:07:46,526 INFO L87 Difference]: Start difference. First operand 1627 states and 2346 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:07:49,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:07:54,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:07:54,427 INFO L93 Difference]: Finished difference Result 3379 states and 5313 transitions. [2021-12-28 04:07:54,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 04:07:54,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 237 [2021-12-28 04:07:54,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:07:54,442 INFO L225 Difference]: With dead ends: 3379 [2021-12-28 04:07:54,443 INFO L226 Difference]: Without dead ends: 3377 [2021-12-28 04:07:54,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-12-28 04:07:54,445 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 3278 mSDsluCounter, 7017 mSDsCounter, 0 mSdLazyCounter, 4928 mSolverCounterSat, 1522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3469 SdHoareTripleChecker+Valid, 9497 SdHoareTripleChecker+Invalid, 6450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1522 IncrementalHoareTripleChecker+Valid, 4928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:07:54,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3469 Valid, 9497 Invalid, 6450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1522 Valid, 4928 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-12-28 04:07:54,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3377 states. [2021-12-28 04:07:54,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3377 to 1629. [2021-12-28 04:07:54,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1195 states have (on average 1.393305439330544) internal successors, (1665), 1227 states have internal predecessors, (1665), 342 states have call successors, (342), 91 states have call predecessors, (342), 91 states have return successors, (342), 339 states have call predecessors, (342), 342 states have call successors, (342) [2021-12-28 04:07:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2349 transitions. [2021-12-28 04:07:54,537 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2349 transitions. Word has length 237 [2021-12-28 04:07:54,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:07:54,538 INFO L470 AbstractCegarLoop]: Abstraction has 1629 states and 2349 transitions. [2021-12-28 04:07:54,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:07:54,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2349 transitions. [2021-12-28 04:07:54,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-12-28 04:07:54,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:07:54,547 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:07:54,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 04:07:54,547 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:07:54,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:07:54,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2044074345, now seen corresponding path program 1 times [2021-12-28 04:07:54,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:07:54,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671721869] [2021-12-28 04:07:54,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:07:54,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:07:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:07:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:07:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:07:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:07:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:07:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:07:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:07:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 04:07:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:07:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:07:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:07:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:07:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:07:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:07:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:07:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-28 04:07:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:07:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:07:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:07:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-28 04:07:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-28 04:07:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-28 04:07:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-28 04:07:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-28 04:07:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:07:54,852 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-12-28 04:07:54,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:07:54,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671721869] [2021-12-28 04:07:54,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671721869] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:07:54,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:07:54,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:07:54,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663945979] [2021-12-28 04:07:54,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:07:54,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:07:54,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:07:54,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:07:54,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:07:54,854 INFO L87 Difference]: Start difference. First operand 1629 states and 2349 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-28 04:07:56,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:07:59,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:08:00,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:08:03,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:08:03,382 INFO L93 Difference]: Finished difference Result 4088 states and 5965 transitions. [2021-12-28 04:08:03,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:08:03,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 267 [2021-12-28 04:08:03,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:08:03,391 INFO L225 Difference]: With dead ends: 4088 [2021-12-28 04:08:03,391 INFO L226 Difference]: Without dead ends: 2505 [2021-12-28 04:08:03,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-28 04:08:03,396 INFO L933 BasicCegarLoop]: 2118 mSDtfsCounter, 2470 mSDsluCounter, 2599 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 1107 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2648 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 3509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1107 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:08:03,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2648 Valid, 4717 Invalid, 3509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1107 Valid, 2401 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-12-28 04:08:03,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2021-12-28 04:08:03,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2169. [2021-12-28 04:08:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 1584 states have (on average 1.3869949494949494) internal successors, (2197), 1625 states have internal predecessors, (2197), 456 states have call successors, (456), 128 states have call predecessors, (456), 128 states have return successors, (456), 451 states have call predecessors, (456), 456 states have call successors, (456) [2021-12-28 04:08:03,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3109 transitions. [2021-12-28 04:08:03,532 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3109 transitions. Word has length 267 [2021-12-28 04:08:03,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:08:03,532 INFO L470 AbstractCegarLoop]: Abstraction has 2169 states and 3109 transitions. [2021-12-28 04:08:03,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-28 04:08:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3109 transitions. [2021-12-28 04:08:03,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-12-28 04:08:03,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:08:03,543 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:08:03,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 04:08:03,543 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:08:03,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:08:03,543 INFO L85 PathProgramCache]: Analyzing trace with hash 161296369, now seen corresponding path program 1 times [2021-12-28 04:08:03,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:08:03,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671162036] [2021-12-28 04:08:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:08:03,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:08:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:08:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:08:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:08:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:08:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:08:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:08:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:08:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 04:08:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:08:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:08:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:08:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:08:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:08:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:08:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:08:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-28 04:08:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:08:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-28 04:08:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-28 04:08:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-28 04:08:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-28 04:08:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-28 04:08:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2021-12-28 04:08:03,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:08:03,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671162036] [2021-12-28 04:08:03,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671162036] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:08:03,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:08:03,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 04:08:03,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388246963] [2021-12-28 04:08:03,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:08:03,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 04:08:03,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:08:03,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 04:08:03,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:08:03,837 INFO L87 Difference]: Start difference. First operand 2169 states and 3109 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-28 04:08:06,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:08:08,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:08:08,987 INFO L93 Difference]: Finished difference Result 4678 states and 6957 transitions. [2021-12-28 04:08:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 04:08:08,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 269 [2021-12-28 04:08:08,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:08:08,998 INFO L225 Difference]: With dead ends: 4678 [2021-12-28 04:08:08,998 INFO L226 Difference]: Without dead ends: 3095 [2021-12-28 04:08:09,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-28 04:08:09,002 INFO L933 BasicCegarLoop]: 1992 mSDtfsCounter, 2754 mSDsluCounter, 4131 mSDsCounter, 0 mSdLazyCounter, 3558 mSolverCounterSat, 953 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3023 SdHoareTripleChecker+Valid, 6123 SdHoareTripleChecker+Invalid, 4512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 953 IncrementalHoareTripleChecker+Valid, 3558 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:08:09,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3023 Valid, 6123 Invalid, 4512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [953 Valid, 3558 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-12-28 04:08:09,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2021-12-28 04:08:09,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 2173. [2021-12-28 04:08:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 1588 states have (on average 1.3866498740554156) internal successors, (2202), 1629 states have internal predecessors, (2202), 456 states have call successors, (456), 128 states have call predecessors, (456), 128 states have return successors, (456), 451 states have call predecessors, (456), 456 states have call successors, (456) [2021-12-28 04:08:09,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 3114 transitions. [2021-12-28 04:08:09,117 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 3114 transitions. Word has length 269 [2021-12-28 04:08:09,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:08:09,117 INFO L470 AbstractCegarLoop]: Abstraction has 2173 states and 3114 transitions. [2021-12-28 04:08:09,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-28 04:08:09,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 3114 transitions. [2021-12-28 04:08:09,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-12-28 04:08:09,126 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:08:09,127 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:08:09,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 04:08:09,127 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:08:09,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:08:09,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1663609119, now seen corresponding path program 1 times [2021-12-28 04:08:09,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:08:09,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275869961] [2021-12-28 04:08:09,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:08:09,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:08:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:08:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:08:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:08:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:08:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 04:08:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 04:08:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 04:08:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 04:08:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 04:08:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:08:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:08:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:08:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:08:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 04:08:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:08:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-28 04:08:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:08:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:08:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:08:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-28 04:08:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-28 04:08:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:08:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-28 04:08:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-28 04:08:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:08:09,399 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2021-12-28 04:08:09,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:08:09,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275869961] [2021-12-28 04:08:09,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275869961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:08:09,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:08:09,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:08:09,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870618311] [2021-12-28 04:08:09,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:08:09,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:08:09,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:08:09,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:08:09,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:08:09,403 INFO L87 Difference]: Start difference. First operand 2173 states and 3114 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)