./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ed18c341b13cb38f54b1bbde59f9cd5a73bcebd88430e5620ebca0060f7baed5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:15:13,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:15:13,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:15:13,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:15:13,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:15:13,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:15:13,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:15:13,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:15:13,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:15:13,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:15:13,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:15:13,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:15:13,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:15:13,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:15:13,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:15:13,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:15:13,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:15:13,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:15:13,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:15:13,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:15:13,531 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:15:13,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:15:13,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:15:13,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:15:13,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:15:13,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:15:13,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:15:13,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:15:13,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:15:13,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:15:13,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:15:13,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:15:13,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:15:13,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:15:13,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:15:13,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:15:13,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:15:13,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:15:13,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:15:13,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:15:13,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:15:13,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:15:13,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:15:13,596 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:15:13,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:15:13,596 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:15:13,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:15:13,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:15:13,598 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:15:13,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:15:13,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:15:13,598 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:15:13,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:15:13,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:15:13,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:15:13,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:15:13,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:15:13,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:15:13,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:15:13,600 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:15:13,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:15:13,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:15:13,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:15:13,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:15:13,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:15:13,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:15:13,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:15:13,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:15:13,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:15:13,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:15:13,602 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:15:13,602 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:15:13,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:15:13,603 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed18c341b13cb38f54b1bbde59f9cd5a73bcebd88430e5620ebca0060f7baed5 [2022-07-14 00:15:13,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:15:13,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:15:13,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:15:13,865 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:15:13,865 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:15:13,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-07-14 00:15:13,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a59ca31a/263f196293c049ac937418525d13bf5d/FLAG1a05fdbf8 [2022-07-14 00:15:14,677 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:15:14,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-07-14 00:15:14,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a59ca31a/263f196293c049ac937418525d13bf5d/FLAG1a05fdbf8 [2022-07-14 00:15:14,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a59ca31a/263f196293c049ac937418525d13bf5d [2022-07-14 00:15:14,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:15:14,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:15:14,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:15:14,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:15:14,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:15:14,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:15:14" (1/1) ... [2022-07-14 00:15:14,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab38a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:14, skipping insertion in model container [2022-07-14 00:15:14,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:15:14" (1/1) ... [2022-07-14 00:15:14,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:15:14,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:15:16,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[198800,198813] [2022-07-14 00:15:17,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:15:17,539 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:15:17,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[198800,198813] [2022-07-14 00:15:17,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:15:17,938 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:15:17,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17 WrapperNode [2022-07-14 00:15:17,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:15:17,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:15:17,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:15:17,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:15:17,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17" (1/1) ... [2022-07-14 00:15:18,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17" (1/1) ... [2022-07-14 00:15:18,232 INFO L137 Inliner]: procedures = 375, calls = 2229, calls flagged for inlining = 193, calls inlined = 191, statements flattened = 6492 [2022-07-14 00:15:18,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:15:18,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:15:18,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:15:18,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:15:18,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17" (1/1) ... [2022-07-14 00:15:18,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17" (1/1) ... [2022-07-14 00:15:18,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17" (1/1) ... [2022-07-14 00:15:18,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17" (1/1) ... [2022-07-14 00:15:18,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17" (1/1) ... [2022-07-14 00:15:18,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17" (1/1) ... [2022-07-14 00:15:18,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17" (1/1) ... [2022-07-14 00:15:18,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:15:18,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:15:18,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:15:18,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:15:18,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17" (1/1) ... [2022-07-14 00:15:18,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:15:18,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:15:18,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 00:15:18,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 00:15:18,651 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_destroy [2022-07-14 00:15:18,651 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_destroy [2022-07-14 00:15:18,651 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-07-14 00:15:18,651 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-07-14 00:15:18,652 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-14 00:15:18,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-14 00:15:18,652 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-07-14 00:15:18,652 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-07-14 00:15:18,652 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-14 00:15:18,653 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-07-14 00:15:18,653 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-07-14 00:15:18,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:15:18,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:15:18,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:15:18,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:15:18,654 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-14 00:15:18,654 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-14 00:15:18,654 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-14 00:15:18,654 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-14 00:15:18,654 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-07-14 00:15:18,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-07-14 00:15:18,654 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-14 00:15:18,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-14 00:15:18,655 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-07-14 00:15:18,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-07-14 00:15:18,655 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-07-14 00:15:18,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-07-14 00:15:18,655 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 00:15:18,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 00:15:18,655 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-14 00:15:18,655 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-14 00:15:18,655 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 00:15:18,656 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 00:15:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:15:18,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:15:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-07-14 00:15:18,656 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-07-14 00:15:18,656 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-07-14 00:15:18,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-07-14 00:15:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-14 00:15:18,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-14 00:15:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-07-14 00:15:18,657 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-07-14 00:15:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:15:18,658 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:15:18,658 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-07-14 00:15:18,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-07-14 00:15:18,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:15:18,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:15:18,658 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-07-14 00:15:18,658 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-07-14 00:15:18,658 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-14 00:15:18,659 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-14 00:15:18,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:15:18,659 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:15:18,660 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-07-14 00:15:18,660 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-07-14 00:15:18,660 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:15:18,660 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:15:18,661 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 00:15:18,661 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 00:15:18,661 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:15:18,661 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:15:18,661 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-07-14 00:15:18,661 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-07-14 00:15:18,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_19 [2022-07-14 00:15:18,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_19 [2022-07-14 00:15:18,662 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-07-14 00:15:18,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-07-14 00:15:18,662 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-07-14 00:15:18,662 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-07-14 00:15:18,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:15:18,663 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 00:15:18,663 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 00:15:18,663 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-14 00:15:18,663 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-14 00:15:18,663 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-14 00:15:18,664 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-14 00:15:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:15:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-14 00:15:18,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-14 00:15:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2022-07-14 00:15:18,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2022-07-14 00:15:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-07-14 00:15:18,664 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-07-14 00:15:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-14 00:15:18,665 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-14 00:15:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2022-07-14 00:15:18,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2022-07-14 00:15:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 00:15:18,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 00:15:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:15:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:15:18,665 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2022-07-14 00:15:18,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2022-07-14 00:15:18,666 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-07-14 00:15:18,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-07-14 00:15:18,666 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-14 00:15:18,666 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-14 00:15:18,666 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-14 00:15:18,666 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-14 00:15:18,666 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_create [2022-07-14 00:15:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_create [2022-07-14 00:15:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 00:15:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 00:15:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-14 00:15:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-14 00:15:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-07-14 00:15:18,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-07-14 00:15:18,667 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 00:15:18,668 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 00:15:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 00:15:18,668 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 00:15:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 00:15:18,668 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 00:15:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-07-14 00:15:18,668 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-07-14 00:15:18,668 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-07-14 00:15:18,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-07-14 00:15:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 00:15:18,669 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 00:15:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-14 00:15:18,669 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-14 00:15:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:15:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:15:18,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:15:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-14 00:15:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-14 00:15:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-07-14 00:15:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-07-14 00:15:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:15:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:15:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-07-14 00:15:18,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-07-14 00:15:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2022-07-14 00:15:18,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2022-07-14 00:15:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:15:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-07-14 00:15:18,671 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-07-14 00:15:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-14 00:15:18,671 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-14 00:15:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:15:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 00:15:18,671 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 00:15:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-07-14 00:15:18,672 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-07-14 00:15:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2022-07-14 00:15:18,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2022-07-14 00:15:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-07-14 00:15:18,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-07-14 00:15:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-07-14 00:15:18,672 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-07-14 00:15:18,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-14 00:15:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-14 00:15:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2022-07-14 00:15:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2022-07-14 00:15:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2022-07-14 00:15:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2022-07-14 00:15:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2022-07-14 00:15:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2022-07-14 00:15:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-07-14 00:15:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-07-14 00:15:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_16 [2022-07-14 00:15:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_16 [2022-07-14 00:15:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-14 00:15:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-14 00:15:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-07-14 00:15:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-07-14 00:15:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-07-14 00:15:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-07-14 00:15:18,674 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-14 00:15:18,674 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-14 00:15:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:15:18,675 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:15:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-07-14 00:15:18,675 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-07-14 00:15:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2022-07-14 00:15:18,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2022-07-14 00:15:18,675 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-07-14 00:15:18,675 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-07-14 00:15:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:15:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-14 00:15:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-14 00:15:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-14 00:15:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-14 00:15:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-14 00:15:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-14 00:15:18,676 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2022-07-14 00:15:18,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2022-07-14 00:15:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:15:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:15:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-07-14 00:15:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-07-14 00:15:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-07-14 00:15:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-07-14 00:15:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:15:18,677 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-14 00:15:18,677 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-14 00:15:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-14 00:15:18,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-14 00:15:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:15:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-14 00:15:18,678 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-14 00:15:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:15:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-14 00:15:18,678 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-14 00:15:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:15:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-07-14 00:15:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-07-14 00:15:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:15:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:15:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-14 00:15:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-14 00:15:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-14 00:15:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-14 00:15:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2022-07-14 00:15:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2022-07-14 00:15:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-14 00:15:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-14 00:15:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-14 00:15:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-14 00:15:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-14 00:15:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-14 00:15:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-07-14 00:15:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-07-14 00:15:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-14 00:15:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-14 00:15:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-14 00:15:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-14 00:15:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-14 00:15:18,681 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-14 00:15:18,681 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2022-07-14 00:15:18,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2022-07-14 00:15:18,682 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 00:15:18,682 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 00:15:18,682 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2022-07-14 00:15:18,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2022-07-14 00:15:18,682 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-07-14 00:15:18,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-07-14 00:15:18,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 00:15:18,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 00:15:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-07-14 00:15:18,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-07-14 00:15:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-07-14 00:15:18,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-07-14 00:15:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_44 [2022-07-14 00:15:18,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_44 [2022-07-14 00:15:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-07-14 00:15:18,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-07-14 00:15:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:15:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-07-14 00:15:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-07-14 00:15:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-14 00:15:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-14 00:15:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:15:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:15:18,684 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:15:18,684 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:15:18,685 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-14 00:15:18,685 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-14 00:15:19,511 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:15:19,513 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:15:20,005 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:15:23,509 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:15:23,544 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:15:23,545 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-14 00:15:23,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:15:23 BoogieIcfgContainer [2022-07-14 00:15:23,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:15:23,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:15:23,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:15:23,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:15:23,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:15:14" (1/3) ... [2022-07-14 00:15:23,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0d4f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:15:23, skipping insertion in model container [2022-07-14 00:15:23,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:15:17" (2/3) ... [2022-07-14 00:15:23,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0d4f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:15:23, skipping insertion in model container [2022-07-14 00:15:23,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:15:23" (3/3) ... [2022-07-14 00:15:23,563 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-07-14 00:15:23,580 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:15:23,580 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:15:23,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:15:23,692 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@76535b7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@51b85622 [2022-07-14 00:15:23,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:15:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 2188 states, 1551 states have (on average 1.3836234687298516) internal successors, (2146), 1610 states have internal predecessors, (2146), 515 states have call successors, (515), 121 states have call predecessors, (515), 120 states have return successors, (510), 497 states have call predecessors, (510), 510 states have call successors, (510) [2022-07-14 00:15:23,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-14 00:15:23,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:15:23,724 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:15:23,725 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:15:23,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:15:23,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1665950622, now seen corresponding path program 1 times [2022-07-14 00:15:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:15:23,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201786709] [2022-07-14 00:15:23,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:15:23,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:15:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:24,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:15:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:24,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:15:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:24,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:15:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:24,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:15:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:24,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:15:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:24,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:15:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:24,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:15:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:24,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:15:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-14 00:15:24,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:15:24,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201786709] [2022-07-14 00:15:24,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201786709] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:15:24,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:15:24,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:15:24,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192049054] [2022-07-14 00:15:24,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:15:24,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:15:24,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:15:24,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:15:24,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:15:24,616 INFO L87 Difference]: Start difference. First operand has 2188 states, 1551 states have (on average 1.3836234687298516) internal successors, (2146), 1610 states have internal predecessors, (2146), 515 states have call successors, (515), 121 states have call predecessors, (515), 120 states have return successors, (510), 497 states have call predecessors, (510), 510 states have call successors, (510) Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-14 00:15:34,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:15:34,699 INFO L93 Difference]: Finished difference Result 7161 states and 11104 transitions. [2022-07-14 00:15:34,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:15:34,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2022-07-14 00:15:34,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:15:34,769 INFO L225 Difference]: With dead ends: 7161 [2022-07-14 00:15:34,769 INFO L226 Difference]: Without dead ends: 4931 [2022-07-14 00:15:34,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:15:34,802 INFO L413 NwaCegarLoop]: 3785 mSDtfsCounter, 4560 mSDsluCounter, 9133 mSDsCounter, 0 mSdLazyCounter, 6028 mSolverCounterSat, 1587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4934 SdHoareTripleChecker+Valid, 12918 SdHoareTripleChecker+Invalid, 7615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1587 IncrementalHoareTripleChecker+Valid, 6028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:15:34,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4934 Valid, 12918 Invalid, 7615 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1587 Valid, 6028 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-07-14 00:15:34,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4931 states. [2022-07-14 00:15:35,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4931 to 4433. [2022-07-14 00:15:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 3151 states have (on average 1.365915582354808) internal successors, (4304), 3264 states have internal predecessors, (4304), 1025 states have call successors, (1025), 239 states have call predecessors, (1025), 256 states have return successors, (1194), 1010 states have call predecessors, (1194), 1024 states have call successors, (1194) [2022-07-14 00:15:35,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6523 transitions. [2022-07-14 00:15:35,160 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6523 transitions. Word has length 69 [2022-07-14 00:15:35,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:15:35,162 INFO L495 AbstractCegarLoop]: Abstraction has 4433 states and 6523 transitions. [2022-07-14 00:15:35,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-14 00:15:35,162 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6523 transitions. [2022-07-14 00:15:35,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-14 00:15:35,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:15:35,180 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:15:35,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:15:35,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:15:35,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:15:35,181 INFO L85 PathProgramCache]: Analyzing trace with hash 953309695, now seen corresponding path program 1 times [2022-07-14 00:15:35,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:15:35,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452776988] [2022-07-14 00:15:35,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:15:35,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:15:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:15:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:15:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:15:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:15:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:15:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:15:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:15:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:15:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 00:15:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:15:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-14 00:15:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:15:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-14 00:15:35,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:15:35,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452776988] [2022-07-14 00:15:35,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452776988] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:15:35,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:15:35,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:15:35,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319433148] [2022-07-14 00:15:35,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:15:35,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:15:35,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:15:35,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:15:35,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:15:35,589 INFO L87 Difference]: Start difference. First operand 4433 states and 6523 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 00:15:47,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:15:47,187 INFO L93 Difference]: Finished difference Result 14739 states and 22490 transitions. [2022-07-14 00:15:47,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:15:47,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2022-07-14 00:15:47,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:15:47,275 INFO L225 Difference]: With dead ends: 14739 [2022-07-14 00:15:47,276 INFO L226 Difference]: Without dead ends: 10326 [2022-07-14 00:15:47,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:15:47,300 INFO L413 NwaCegarLoop]: 3712 mSDtfsCounter, 6657 mSDsluCounter, 5008 mSDsCounter, 0 mSdLazyCounter, 5080 mSolverCounterSat, 3346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6994 SdHoareTripleChecker+Valid, 8720 SdHoareTripleChecker+Invalid, 8426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3346 IncrementalHoareTripleChecker+Valid, 5080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:15:47,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6994 Valid, 8720 Invalid, 8426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3346 Valid, 5080 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2022-07-14 00:15:47,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10326 states. [2022-07-14 00:15:47,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10326 to 8839. [2022-07-14 00:15:47,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8839 states, 6245 states have (on average 1.355004003202562) internal successors, (8462), 6489 states have internal predecessors, (8462), 2045 states have call successors, (2045), 467 states have call predecessors, (2045), 548 states have return successors, (2783), 2053 states have call predecessors, (2783), 2044 states have call successors, (2783) [2022-07-14 00:15:47,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8839 states to 8839 states and 13290 transitions. [2022-07-14 00:15:47,796 INFO L78 Accepts]: Start accepts. Automaton has 8839 states and 13290 transitions. Word has length 105 [2022-07-14 00:15:47,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:15:47,798 INFO L495 AbstractCegarLoop]: Abstraction has 8839 states and 13290 transitions. [2022-07-14 00:15:47,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 00:15:47,810 INFO L276 IsEmpty]: Start isEmpty. Operand 8839 states and 13290 transitions. [2022-07-14 00:15:47,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-14 00:15:47,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:15:47,815 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-07-14 00:15:47,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:15:47,816 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:15:47,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:15:47,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1261801524, now seen corresponding path program 1 times [2022-07-14 00:15:47,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:15:47,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358925743] [2022-07-14 00:15:47,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:15:47,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:15:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:15:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:15:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:15:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:15:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:15:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:15:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:15:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:15:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-14 00:15:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:15:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:15:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:15:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:15:48,189 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-14 00:15:48,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:15:48,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358925743] [2022-07-14 00:15:48,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358925743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:15:48,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:15:48,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:15:48,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701930492] [2022-07-14 00:15:48,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:15:48,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:15:48,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:15:48,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:15:48,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:15:48,193 INFO L87 Difference]: Start difference. First operand 8839 states and 13290 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 00:16:00,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:16:00,548 INFO L93 Difference]: Finished difference Result 26650 states and 40851 transitions. [2022-07-14 00:16:00,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:16:00,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-07-14 00:16:00,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:16:00,753 INFO L225 Difference]: With dead ends: 26650 [2022-07-14 00:16:00,754 INFO L226 Difference]: Without dead ends: 17831 [2022-07-14 00:16:00,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:16:00,838 INFO L413 NwaCegarLoop]: 4682 mSDtfsCounter, 4229 mSDsluCounter, 5974 mSDsCounter, 0 mSdLazyCounter, 4948 mSolverCounterSat, 2062 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4532 SdHoareTripleChecker+Valid, 10656 SdHoareTripleChecker+Invalid, 7010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2062 IncrementalHoareTripleChecker+Valid, 4948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:16:00,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4532 Valid, 10656 Invalid, 7010 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2062 Valid, 4948 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2022-07-14 00:16:00,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17831 states. [2022-07-14 00:16:01,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17831 to 14968. [2022-07-14 00:16:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14968 states, 10597 states have (on average 1.3512314806077192) internal successors, (14319), 11047 states have internal predecessors, (14319), 3359 states have call successors, (3359), 865 states have call predecessors, (3359), 1011 states have return successors, (4661), 3369 states have call predecessors, (4661), 3358 states have call successors, (4661) [2022-07-14 00:16:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14968 states to 14968 states and 22339 transitions. [2022-07-14 00:16:01,980 INFO L78 Accepts]: Start accepts. Automaton has 14968 states and 22339 transitions. Word has length 108 [2022-07-14 00:16:01,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:16:01,981 INFO L495 AbstractCegarLoop]: Abstraction has 14968 states and 22339 transitions. [2022-07-14 00:16:01,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-14 00:16:01,981 INFO L276 IsEmpty]: Start isEmpty. Operand 14968 states and 22339 transitions. [2022-07-14 00:16:01,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-14 00:16:01,995 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:16:01,995 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:16:01,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:16:01,996 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:16:01,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:16:01,996 INFO L85 PathProgramCache]: Analyzing trace with hash -599238503, now seen corresponding path program 1 times [2022-07-14 00:16:01,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:16:01,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533005134] [2022-07-14 00:16:01,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:16:01,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:16:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:16:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:16:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:16:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:16:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:16:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:16:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:16:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:16:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:16:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:16:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:16:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 00:16:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:16:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:16:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:16:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-07-14 00:16:02,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:16:02,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533005134] [2022-07-14 00:16:02,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533005134] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:16:02,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:16:02,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:16:02,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717183051] [2022-07-14 00:16:02,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:16:02,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:16:02,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:16:02,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:16:02,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:16:02,408 INFO L87 Difference]: Start difference. First operand 14968 states and 22339 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 00:16:14,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:16:14,353 INFO L93 Difference]: Finished difference Result 32759 states and 49872 transitions. [2022-07-14 00:16:14,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:16:14,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2022-07-14 00:16:14,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:16:14,514 INFO L225 Difference]: With dead ends: 32759 [2022-07-14 00:16:14,515 INFO L226 Difference]: Without dead ends: 17811 [2022-07-14 00:16:14,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:16:14,602 INFO L413 NwaCegarLoop]: 2931 mSDtfsCounter, 3942 mSDsluCounter, 3623 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 1106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4275 SdHoareTripleChecker+Valid, 6554 SdHoareTripleChecker+Invalid, 4288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1106 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:16:14,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4275 Valid, 6554 Invalid, 4288 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1106 Valid, 3182 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-07-14 00:16:14,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17811 states. [2022-07-14 00:16:15,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17811 to 14968. [2022-07-14 00:16:15,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14968 states, 10597 states have (on average 1.3504765499669718) internal successors, (14311), 11047 states have internal predecessors, (14311), 3359 states have call successors, (3359), 865 states have call predecessors, (3359), 1011 states have return successors, (4661), 3369 states have call predecessors, (4661), 3358 states have call successors, (4661) [2022-07-14 00:16:15,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14968 states to 14968 states and 22331 transitions. [2022-07-14 00:16:15,716 INFO L78 Accepts]: Start accepts. Automaton has 14968 states and 22331 transitions. Word has length 142 [2022-07-14 00:16:15,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:16:15,717 INFO L495 AbstractCegarLoop]: Abstraction has 14968 states and 22331 transitions. [2022-07-14 00:16:15,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 00:16:15,718 INFO L276 IsEmpty]: Start isEmpty. Operand 14968 states and 22331 transitions. [2022-07-14 00:16:15,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-14 00:16:15,726 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:16:15,726 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:16:15,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:16:15,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:16:15,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:16:15,728 INFO L85 PathProgramCache]: Analyzing trace with hash -410587588, now seen corresponding path program 1 times [2022-07-14 00:16:15,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:16:15,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297962974] [2022-07-14 00:16:15,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:16:15,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:16:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:16:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:15,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:16:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:15,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:16:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:15,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:16:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:15,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:16:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:15,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:16:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:16:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:16:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:16:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:16,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:16:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:16,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:16:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:16,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:16:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:16:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:16,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:16:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:16,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:16:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:16,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:16:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:16,118 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-14 00:16:16,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:16:16,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297962974] [2022-07-14 00:16:16,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297962974] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:16:16,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:16:16,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:16:16,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53676079] [2022-07-14 00:16:16,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:16:16,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:16:16,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:16:16,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:16:16,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:16:16,122 INFO L87 Difference]: Start difference. First operand 14968 states and 22331 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 00:16:28,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:16:28,248 INFO L93 Difference]: Finished difference Result 40582 states and 61940 transitions. [2022-07-14 00:16:28,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:16:28,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2022-07-14 00:16:28,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:16:28,517 INFO L225 Difference]: With dead ends: 40582 [2022-07-14 00:16:28,519 INFO L226 Difference]: Without dead ends: 25634 [2022-07-14 00:16:28,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:16:28,623 INFO L413 NwaCegarLoop]: 4010 mSDtfsCounter, 5177 mSDsluCounter, 3742 mSDsCounter, 0 mSdLazyCounter, 3179 mSolverCounterSat, 2474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5476 SdHoareTripleChecker+Valid, 7752 SdHoareTripleChecker+Invalid, 5653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2474 IncrementalHoareTripleChecker+Valid, 3179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:16:28,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5476 Valid, 7752 Invalid, 5653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2474 Valid, 3179 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-07-14 00:16:28,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25634 states. [2022-07-14 00:16:30,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25634 to 21365. [2022-07-14 00:16:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21365 states, 15153 states have (on average 1.348115884643305) internal successors, (20428), 15817 states have internal predecessors, (20428), 4721 states have call successors, (4721), 1275 states have call predecessors, (4721), 1490 states have return successors, (6617), 4733 states have call predecessors, (6617), 4720 states have call successors, (6617) [2022-07-14 00:16:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21365 states to 21365 states and 31766 transitions. [2022-07-14 00:16:30,337 INFO L78 Accepts]: Start accepts. Automaton has 21365 states and 31766 transitions. Word has length 149 [2022-07-14 00:16:30,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:16:30,340 INFO L495 AbstractCegarLoop]: Abstraction has 21365 states and 31766 transitions. [2022-07-14 00:16:30,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-14 00:16:30,340 INFO L276 IsEmpty]: Start isEmpty. Operand 21365 states and 31766 transitions. [2022-07-14 00:16:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-14 00:16:30,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:16:30,346 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:16:30,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 00:16:30,348 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:16:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:16:30,348 INFO L85 PathProgramCache]: Analyzing trace with hash -43905274, now seen corresponding path program 1 times [2022-07-14 00:16:30,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:16:30,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741769508] [2022-07-14 00:16:30,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:16:30,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:16:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:16:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:16:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:16:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:16:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:16:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:16:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:16:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:16:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:16:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:16:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:16:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:16:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-14 00:16:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:16:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:16:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:16:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:30,866 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-07-14 00:16:30,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:16:30,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741769508] [2022-07-14 00:16:30,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741769508] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:16:30,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:16:30,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 00:16:30,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72495643] [2022-07-14 00:16:30,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:16:30,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 00:16:30,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:16:30,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 00:16:30,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:16:30,870 INFO L87 Difference]: Start difference. First operand 21365 states and 31766 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-14 00:16:50,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:16:50,171 INFO L93 Difference]: Finished difference Result 47091 states and 73359 transitions. [2022-07-14 00:16:50,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 00:16:50,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 1 states have call successors, (16) Word has length 149 [2022-07-14 00:16:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:16:50,375 INFO L225 Difference]: With dead ends: 47091 [2022-07-14 00:16:50,375 INFO L226 Difference]: Without dead ends: 25746 [2022-07-14 00:16:50,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2022-07-14 00:16:50,478 INFO L413 NwaCegarLoop]: 2994 mSDtfsCounter, 964 mSDsluCounter, 18610 mSDsCounter, 0 mSdLazyCounter, 11822 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 21604 SdHoareTripleChecker+Invalid, 12459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 11822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:16:50,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 21604 Invalid, 12459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [637 Valid, 11822 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2022-07-14 00:16:50,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25746 states. [2022-07-14 00:16:51,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25746 to 21476. [2022-07-14 00:16:51,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21476 states, 15237 states have (on average 1.3467874253461967) internal successors, (20521), 15913 states have internal predecessors, (20521), 4721 states have call successors, (4721), 1275 states have call predecessors, (4721), 1517 states have return successors, (6912), 4748 states have call predecessors, (6912), 4720 states have call successors, (6912) [2022-07-14 00:16:51,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21476 states to 21476 states and 32154 transitions. [2022-07-14 00:16:51,910 INFO L78 Accepts]: Start accepts. Automaton has 21476 states and 32154 transitions. Word has length 149 [2022-07-14 00:16:51,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:16:51,911 INFO L495 AbstractCegarLoop]: Abstraction has 21476 states and 32154 transitions. [2022-07-14 00:16:51,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 7 states have internal predecessors, (83), 2 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-14 00:16:51,912 INFO L276 IsEmpty]: Start isEmpty. Operand 21476 states and 32154 transitions. [2022-07-14 00:16:51,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-14 00:16:51,918 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:16:51,918 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:16:51,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 00:16:51,919 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:16:51,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:16:51,921 INFO L85 PathProgramCache]: Analyzing trace with hash -277307092, now seen corresponding path program 1 times [2022-07-14 00:16:51,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:16:51,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383347659] [2022-07-14 00:16:51,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:16:51,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:16:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:16:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:16:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:16:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:16:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:16:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:16:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:16:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:16:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:16:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:16:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:16:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:16:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-14 00:16:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:16:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:16:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:16:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:16:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:16:52,499 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-07-14 00:16:52,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:16:52,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383347659] [2022-07-14 00:16:52,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383347659] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:16:52,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:16:52,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 00:16:52,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109535767] [2022-07-14 00:16:52,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:16:52,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 00:16:52,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:16:52,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 00:16:52,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:16:52,502 INFO L87 Difference]: Start difference. First operand 21476 states and 32154 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 00:17:05,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:17:05,386 INFO L93 Difference]: Finished difference Result 52292 states and 84323 transitions. [2022-07-14 00:17:05,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 00:17:05,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2022-07-14 00:17:05,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:17:05,570 INFO L225 Difference]: With dead ends: 52292 [2022-07-14 00:17:05,571 INFO L226 Difference]: Without dead ends: 30836 [2022-07-14 00:17:05,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:17:05,680 INFO L413 NwaCegarLoop]: 3056 mSDtfsCounter, 2380 mSDsluCounter, 9316 mSDsCounter, 0 mSdLazyCounter, 6514 mSolverCounterSat, 1632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2629 SdHoareTripleChecker+Valid, 12372 SdHoareTripleChecker+Invalid, 8146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1632 IncrementalHoareTripleChecker+Valid, 6514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:17:05,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2629 Valid, 12372 Invalid, 8146 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1632 Valid, 6514 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2022-07-14 00:17:05,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30836 states. [2022-07-14 00:17:06,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30836 to 21575. [2022-07-14 00:17:06,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21575 states, 15290 states have (on average 1.3477436232831916) internal successors, (20607), 15985 states have internal predecessors, (20607), 4763 states have call successors, (4763), 1275 states have call predecessors, (4763), 1521 states have return successors, (6855), 4778 states have call predecessors, (6855), 4762 states have call successors, (6855) [2022-07-14 00:17:06,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21575 states to 21575 states and 32225 transitions. [2022-07-14 00:17:06,806 INFO L78 Accepts]: Start accepts. Automaton has 21575 states and 32225 transitions. Word has length 155 [2022-07-14 00:17:06,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:17:06,807 INFO L495 AbstractCegarLoop]: Abstraction has 21575 states and 32225 transitions. [2022-07-14 00:17:06,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-14 00:17:06,807 INFO L276 IsEmpty]: Start isEmpty. Operand 21575 states and 32225 transitions. [2022-07-14 00:17:06,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-14 00:17:06,811 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:17:06,811 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:17:06,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 00:17:06,812 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:17:06,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:17:06,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1754202023, now seen corresponding path program 1 times [2022-07-14 00:17:06,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:17:06,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594954958] [2022-07-14 00:17:06,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:17:06,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:17:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:17:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:06,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:17:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:17:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:06,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:17:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:06,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:17:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:06,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:17:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:06,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:17:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:06,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:17:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:17:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:17:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:17:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:17:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-14 00:17:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:17:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:17:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:17:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:17:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:07,268 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-14 00:17:07,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:17:07,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594954958] [2022-07-14 00:17:07,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594954958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:17:07,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:17:07,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 00:17:07,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527645351] [2022-07-14 00:17:07,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:17:07,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 00:17:07,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:17:07,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 00:17:07,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:17:07,271 INFO L87 Difference]: Start difference. First operand 21575 states and 32225 transitions. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 8 states have internal predecessors, (93), 3 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 00:17:26,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:17:26,351 INFO L93 Difference]: Finished difference Result 47349 states and 73671 transitions. [2022-07-14 00:17:26,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:17:26,352 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 8 states have internal predecessors, (93), 3 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 2 states have call successors, (20) Word has length 170 [2022-07-14 00:17:26,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:17:26,704 INFO L225 Difference]: With dead ends: 47349 [2022-07-14 00:17:26,704 INFO L226 Difference]: Without dead ends: 25794 [2022-07-14 00:17:26,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-07-14 00:17:26,821 INFO L413 NwaCegarLoop]: 3018 mSDtfsCounter, 948 mSDsluCounter, 21001 mSDsCounter, 0 mSdLazyCounter, 12942 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 24019 SdHoareTripleChecker+Invalid, 13578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 12942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:17:26,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 24019 Invalid, 13578 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [636 Valid, 12942 Invalid, 0 Unknown, 0 Unchecked, 17.1s Time] [2022-07-14 00:17:26,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25794 states. [2022-07-14 00:17:27,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25794 to 21589. [2022-07-14 00:17:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21589 states, 15304 states have (on average 1.3461186617877678) internal successors, (20601), 15992 states have internal predecessors, (20601), 4763 states have call successors, (4763), 1275 states have call predecessors, (4763), 1521 states have return successors, (6826), 4785 states have call predecessors, (6826), 4762 states have call successors, (6826) [2022-07-14 00:17:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21589 states to 21589 states and 32190 transitions. [2022-07-14 00:17:28,377 INFO L78 Accepts]: Start accepts. Automaton has 21589 states and 32190 transitions. Word has length 170 [2022-07-14 00:17:28,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:17:28,378 INFO L495 AbstractCegarLoop]: Abstraction has 21589 states and 32190 transitions. [2022-07-14 00:17:28,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 8 states have internal predecessors, (93), 3 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 00:17:28,378 INFO L276 IsEmpty]: Start isEmpty. Operand 21589 states and 32190 transitions. [2022-07-14 00:17:28,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-14 00:17:28,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:17:28,386 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:17:28,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 00:17:28,386 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:17:28,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:17:28,387 INFO L85 PathProgramCache]: Analyzing trace with hash 729024575, now seen corresponding path program 1 times [2022-07-14 00:17:28,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:17:28,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289022122] [2022-07-14 00:17:28,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:17:28,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:17:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:17:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:17:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:17:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:17:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:17:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:17:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:17:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:17:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:17:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:17:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:17:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:17:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-14 00:17:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:17:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:17:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:17:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:17:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-14 00:17:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:28,912 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-07-14 00:17:28,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:17:28,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289022122] [2022-07-14 00:17:28,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289022122] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:17:28,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172388563] [2022-07-14 00:17:28,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:17:28,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:17:28,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:17:28,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:17:28,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 00:17:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:29,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 2669 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:17:29,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:17:30,065 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-07-14 00:17:30,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:17:30,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172388563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:17:30,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:17:30,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-07-14 00:17:30,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550587786] [2022-07-14 00:17:30,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:17:30,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:17:30,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:17:30,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:17:30,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:17:30,068 INFO L87 Difference]: Start difference. First operand 21589 states and 32190 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 00:17:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:17:31,597 INFO L93 Difference]: Finished difference Result 43185 states and 64369 transitions. [2022-07-14 00:17:31,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:17:31,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 176 [2022-07-14 00:17:31,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:17:31,772 INFO L225 Difference]: With dead ends: 43185 [2022-07-14 00:17:31,772 INFO L226 Difference]: Without dead ends: 21554 [2022-07-14 00:17:31,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:17:31,873 INFO L413 NwaCegarLoop]: 3363 mSDtfsCounter, 2980 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2980 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:17:31,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2980 Valid, 3675 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:17:31,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21554 states. [2022-07-14 00:17:33,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21554 to 21533. [2022-07-14 00:17:33,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21533 states, 15257 states have (on average 1.3466605492560793) internal successors, (20546), 15940 states have internal predecessors, (20546), 4749 states have call successors, (4749), 1280 states have call predecessors, (4749), 1526 states have return successors, (6782), 4771 states have call predecessors, (6782), 4748 states have call successors, (6782) [2022-07-14 00:17:33,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21533 states to 21533 states and 32077 transitions. [2022-07-14 00:17:33,301 INFO L78 Accepts]: Start accepts. Automaton has 21533 states and 32077 transitions. Word has length 176 [2022-07-14 00:17:33,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:17:33,301 INFO L495 AbstractCegarLoop]: Abstraction has 21533 states and 32077 transitions. [2022-07-14 00:17:33,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 00:17:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 21533 states and 32077 transitions. [2022-07-14 00:17:33,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-14 00:17:33,312 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:17:33,312 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:17:33,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-14 00:17:33,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:17:33,528 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:17:33,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:17:33,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1418660964, now seen corresponding path program 1 times [2022-07-14 00:17:33,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:17:33,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539943430] [2022-07-14 00:17:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:17:33,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:17:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:17:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:17:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:17:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:17:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:17:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:17:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:17:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:17:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:17:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:17:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:17:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:17:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-14 00:17:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:34,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:17:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:35,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:35,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:35,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:17:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:35,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:17:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:35,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:35,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:17:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:35,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-14 00:17:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-14 00:17:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:36,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-14 00:17:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-14 00:17:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:36,032 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 00:17:36,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:17:36,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539943430] [2022-07-14 00:17:36,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539943430] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:17:36,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018564678] [2022-07-14 00:17:36,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:17:36,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:17:36,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:17:36,035 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:17:36,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 00:17:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:37,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 2738 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-14 00:17:37,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:17:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-07-14 00:17:37,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:17:37,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018564678] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:17:37,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:17:37,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [26] total 29 [2022-07-14 00:17:37,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977305175] [2022-07-14 00:17:37,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:17:37,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:17:37,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:17:37,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:17:37,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-07-14 00:17:37,462 INFO L87 Difference]: Start difference. First operand 21533 states and 32077 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-14 00:17:39,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:17:39,224 INFO L93 Difference]: Finished difference Result 42822 states and 63829 transitions. [2022-07-14 00:17:39,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:17:39,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 190 [2022-07-14 00:17:39,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:17:39,438 INFO L225 Difference]: With dead ends: 42822 [2022-07-14 00:17:39,438 INFO L226 Difference]: Without dead ends: 21528 [2022-07-14 00:17:39,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=92, Invalid=838, Unknown=0, NotChecked=0, Total=930 [2022-07-14 00:17:39,575 INFO L413 NwaCegarLoop]: 3109 mSDtfsCounter, 3 mSDsluCounter, 9316 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12425 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:17:39,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 12425 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:17:39,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21528 states. [2022-07-14 00:17:41,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21528 to 21528. [2022-07-14 00:17:41,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21528 states, 15254 states have (on average 1.3466631703159826) internal successors, (20542), 15937 states have internal predecessors, (20542), 4748 states have call successors, (4748), 1279 states have call predecessors, (4748), 1525 states have return successors, (6781), 4770 states have call predecessors, (6781), 4747 states have call successors, (6781) [2022-07-14 00:17:41,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21528 states to 21528 states and 32071 transitions. [2022-07-14 00:17:41,359 INFO L78 Accepts]: Start accepts. Automaton has 21528 states and 32071 transitions. Word has length 190 [2022-07-14 00:17:41,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:17:41,360 INFO L495 AbstractCegarLoop]: Abstraction has 21528 states and 32071 transitions. [2022-07-14 00:17:41,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-14 00:17:41,360 INFO L276 IsEmpty]: Start isEmpty. Operand 21528 states and 32071 transitions. [2022-07-14 00:17:41,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-14 00:17:41,371 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:17:41,371 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:17:41,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:17:41,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-14 00:17:41,601 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:17:41,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:17:41,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1539380712, now seen corresponding path program 1 times [2022-07-14 00:17:41,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:17:41,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273082925] [2022-07-14 00:17:41,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:17:41,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:17:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:17:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:17:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:17:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:17:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:17:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:17:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:17:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:17:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:17:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:17:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 00:17:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 00:17:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-14 00:17:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:42,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 00:17:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:43,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:17:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:43,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:44,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:17:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:44,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:17:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:44,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:17:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:44,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:17:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:44,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-14 00:17:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 00:17:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:44,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-14 00:17:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:44,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 00:17:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-07-14 00:17:44,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:17:44,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273082925] [2022-07-14 00:17:44,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273082925] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:17:44,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766394003] [2022-07-14 00:17:44,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:17:44,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:17:44,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:17:44,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:17:44,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 00:17:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:17:45,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 116 conjunts are in the unsatisfiable core [2022-07-14 00:17:45,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:17:45,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:45,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:45,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:45,738 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:45,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:45,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:45,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:46,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:46,329 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-14 00:17:46,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-07-14 00:17:46,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:46,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:47,616 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-14 00:17:47,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-07-14 00:17:47,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:47,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-14 00:17:48,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-14 00:17:48,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-14 00:17:48,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-14 00:17:48,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-14 00:17:48,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-14 00:17:48,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-14 00:17:50,044 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-14 00:17:50,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-14 00:17:50,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-14 00:17:50,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:17:50,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:17:50,567 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-14 00:17:50,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 25 [2022-07-14 00:17:50,590 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-14 00:17:50,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-07-14 00:17:50,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-14 00:17:50,851 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-07-14 00:17:50,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:17:51,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766394003] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:17:51,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:17:51,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 21] total 44 [2022-07-14 00:17:51,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131685319] [2022-07-14 00:17:51,556 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:17:51,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-07-14 00:17:51,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:17:51,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-07-14 00:17:51,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1898, Unknown=13, NotChecked=0, Total=2070 [2022-07-14 00:17:51,558 INFO L87 Difference]: Start difference. First operand 21528 states and 32071 transitions. Second operand has 44 states, 44 states have (on average 4.818181818181818) internal successors, (212), 33 states have internal predecessors, (212), 15 states have call successors, (52), 12 states have call predecessors, (52), 16 states have return successors, (51), 20 states have call predecessors, (51), 15 states have call successors, (51) [2022-07-14 00:18:25,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:18:46,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []