./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--ieee802154--mrf24j40.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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--ieee802154--mrf24j40.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 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:44:49,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:44:49,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:44:49,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:44:49,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:44:49,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:44:49,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:44:49,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:44:49,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:44:49,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:44:49,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:44:49,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:44:49,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:44:49,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:44:49,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:44:49,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:44:49,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:44:49,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:44:49,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:44:49,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:44:49,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:44:49,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:44:49,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:44:49,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:44:49,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:44:49,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:44:49,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:44:49,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:44:49,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:44:49,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:44:49,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:44:49,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:44:49,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:44:49,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:44:49,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:44:49,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:44:49,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:44:49,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:44:49,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:44:49,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:44:49,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:44:49,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:44:49,511 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:44:49,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:44:49,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:44:49,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:44:49,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:44:49,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:44:49,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:44:49,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:44:49,515 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:44:49,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:44:49,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:44:49,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:44:49,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:44:49,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:44:49,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:44:49,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:44:49,517 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:44:49,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:44:49,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:44:49,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:44:49,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:44:49,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:44:49,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:44:49,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:44:49,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:44:49,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:44:49,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:44:49,520 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:44:49,520 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:44:49,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:44:49,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:44:49,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516f7415706b6c5853539632c826b0e29b08def0097a2be3ef08c779c9d5bd22 [2021-12-14 17:44:49,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:44:49,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:44:49,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:44:49,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:44:49,743 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:44:49,744 INFO L432 ainManager$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--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2021-12-14 17:44:49,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbbb9cc00/4b05bf023cc44b11a3240eb090a36ad4/FLAG996d03245 [2021-12-14 17:44:50,433 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:44:50,434 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--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2021-12-14 17:44:50,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbbb9cc00/4b05bf023cc44b11a3240eb090a36ad4/FLAG996d03245 [2021-12-14 17:44:50,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbbb9cc00/4b05bf023cc44b11a3240eb090a36ad4 [2021-12-14 17:44:50,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:44:50,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:44:50,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:44:50,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:44:50,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:44:50,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:44:50" (1/1) ... [2021-12-14 17:44:50,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@750f8644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:50, skipping insertion in model container [2021-12-14 17:44:50,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:44:50" (1/1) ... [2021-12-14 17:44:50,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:44:50,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:44:51,552 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--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2021-12-14 17:44:51,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:44:51,966 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:44:52,075 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--ieee802154--mrf24j40.ko-entry_point.cil.out.i[160816,160829] [2021-12-14 17:44:52,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:44:52,236 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:44:52,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52 WrapperNode [2021-12-14 17:44:52,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:44:52,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:44:52,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:44:52,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:44:52,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52" (1/1) ... [2021-12-14 17:44:52,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52" (1/1) ... [2021-12-14 17:44:52,436 INFO L137 Inliner]: procedures = 140, calls = 1066, calls flagged for inlining = 55, calls inlined = 52, statements flattened = 1906 [2021-12-14 17:44:52,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:44:52,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:44:52,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:44:52,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:44:52,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52" (1/1) ... [2021-12-14 17:44:52,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52" (1/1) ... [2021-12-14 17:44:52,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52" (1/1) ... [2021-12-14 17:44:52,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52" (1/1) ... [2021-12-14 17:44:52,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52" (1/1) ... [2021-12-14 17:44:52,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52" (1/1) ... [2021-12-14 17:44:52,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52" (1/1) ... [2021-12-14 17:44:52,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:44:52,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:44:52,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:44:52,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:44:52,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52" (1/1) ... [2021-12-14 17:44:52,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:44:52,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:44:52,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 17:44:52,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 17:44:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:44:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2021-12-14 17:44:52,718 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2021-12-14 17:44:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:44:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:44:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:44:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:44:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:44:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure write_long_reg [2021-12-14 17:44:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure write_long_reg [2021-12-14 17:44:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-12-14 17:44:52,719 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-12-14 17:44:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:44:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:44:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-12-14 17:44:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-12-14 17:44:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-12-14 17:44:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-12-14 17:44:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:44:52,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:44:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-14 17:44:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-14 17:44:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:44:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:44:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:44:52,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:44:52,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:44:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:44:52,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:44:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_set_channel [2021-12-14 17:44:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_set_channel [2021-12-14 17:44:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-12-14 17:44:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-12-14 17:44:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:44:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:44:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure write_short_reg [2021-12-14 17:44:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure write_short_reg [2021-12-14 17:44:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:44:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:44:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure ieee802154_unregister_device [2021-12-14 17:44:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee802154_unregister_device [2021-12-14 17:44:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 17:44:52,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 17:44:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:44:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:44:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-14 17:44:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-14 17:44:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-12-14 17:44:52,725 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-12-14 17:44:52,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-14 17:44:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-14 17:44:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure read_short_reg [2021-12-14 17:44:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure read_short_reg [2021-12-14 17:44:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_filter [2021-12-14 17:44:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_filter [2021-12-14 17:44:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:44:52,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-14 17:44:52,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-14 17:44:52,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:44:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-12-14 17:44:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-12-14 17:44:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:44:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 17:44:52,729 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 17:44:52,729 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-12-14 17:44:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-12-14 17:44:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_tx [2021-12-14 17:44:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_tx [2021-12-14 17:44:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_isr [2021-12-14 17:44:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_isr [2021-12-14 17:44:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure mrf24j40_ed [2021-12-14 17:44:52,730 INFO L138 BoogieDeclarations]: Found implementation of procedure mrf24j40_ed [2021-12-14 17:44:52,730 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:44:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:44:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure ieee802154_free_device [2021-12-14 17:44:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee802154_free_device [2021-12-14 17:44:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:44:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:44:52,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:44:52,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:44:52,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:44:52,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:44:53,212 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:44:53,214 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:45:02,455 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:45:10,967 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:45:10,979 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:45:10,979 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-14 17:45:10,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:45:10 BoogieIcfgContainer [2021-12-14 17:45:10,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:45:10,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:45:10,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:45:10,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:45:10,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:44:50" (1/3) ... [2021-12-14 17:45:10,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752999c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:45:10, skipping insertion in model container [2021-12-14 17:45:10,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:52" (2/3) ... [2021-12-14 17:45:10,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752999c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:45:10, skipping insertion in model container [2021-12-14 17:45:10,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:45:10" (3/3) ... [2021-12-14 17:45:10,989 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ieee802154--mrf24j40.ko-entry_point.cil.out.i [2021-12-14 17:45:10,994 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:45:10,994 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:45:11,034 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:45:11,040 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 17:45:11,040 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:45:11,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 621 states, 439 states have (on average 1.3690205011389522) internal successors, (601), 453 states have internal predecessors, (601), 148 states have call successors, (148), 33 states have call predecessors, (148), 32 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2021-12-14 17:45:11,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-14 17:45:11,100 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:45:11,101 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:45:11,102 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:45:11,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:45:11,107 INFO L85 PathProgramCache]: Analyzing trace with hash -829070918, now seen corresponding path program 1 times [2021-12-14 17:45:11,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:45:11,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312369306] [2021-12-14 17:45:11,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:45:11,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:45:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:11,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:45:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:45:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:11,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:45:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:11,695 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 17:45:11,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:45:11,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312369306] [2021-12-14 17:45:11,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312369306] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:45:11,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:45:11,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:45:11,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433509999] [2021-12-14 17:45:11,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:45:11,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:45:11,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:45:11,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:45:11,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:45:11,761 INFO L87 Difference]: Start difference. First operand has 621 states, 439 states have (on average 1.3690205011389522) internal successors, (601), 453 states have internal predecessors, (601), 148 states have call successors, (148), 33 states have call predecessors, (148), 32 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-14 17:45:13,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:15,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:18,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:20,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:22,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:25,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:28,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:30,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:32,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:33,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:45:33,067 INFO L93 Difference]: Finished difference Result 1873 states and 2867 transitions. [2021-12-14 17:45:33,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:45:33,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2021-12-14 17:45:33,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:45:33,094 INFO L225 Difference]: With dead ends: 1873 [2021-12-14 17:45:33,094 INFO L226 Difference]: Without dead ends: 1233 [2021-12-14 17:45:33,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:45:33,115 INFO L933 BasicCegarLoop]: 1006 mSDtfsCounter, 963 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 302 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2021-12-14 17:45:33,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1059 Valid, 2268 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 417 Invalid, 9 Unknown, 0 Unchecked, 21.0s Time] [2021-12-14 17:45:33,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2021-12-14 17:45:33,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1146. [2021-12-14 17:45:33,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 827 states have (on average 1.336154776299879) internal successors, (1105), 835 states have internal predecessors, (1105), 259 states have call successors, (259), 60 states have call predecessors, (259), 59 states have return successors, (258), 258 states have call predecessors, (258), 258 states have call successors, (258) [2021-12-14 17:45:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1622 transitions. [2021-12-14 17:45:33,297 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1622 transitions. Word has length 37 [2021-12-14 17:45:33,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:45:33,297 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 1622 transitions. [2021-12-14 17:45:33,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-14 17:45:33,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1622 transitions. [2021-12-14 17:45:33,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-14 17:45:33,306 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:45:33,306 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:45:33,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:45:33,307 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:45:33,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:45:33,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1782236089, now seen corresponding path program 1 times [2021-12-14 17:45:33,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:45:33,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283308825] [2021-12-14 17:45:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:45:33,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:45:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:33,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:45:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:33,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:45:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:45:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 17:45:33,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:45:33,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283308825] [2021-12-14 17:45:33,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283308825] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:45:33,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:45:33,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:45:33,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054266163] [2021-12-14 17:45:33,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:45:33,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:45:33,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:45:33,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:45:33,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:45:33,652 INFO L87 Difference]: Start difference. First operand 1146 states and 1622 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-14 17:45:35,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:38,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:40,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:42,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:45,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:47,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:49,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:45:51,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:45:51,338 INFO L93 Difference]: Finished difference Result 3541 states and 5099 transitions. [2021-12-14 17:45:51,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:45:51,338 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-12-14 17:45:51,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:45:51,354 INFO L225 Difference]: With dead ends: 3541 [2021-12-14 17:45:51,354 INFO L226 Difference]: Without dead ends: 2398 [2021-12-14 17:45:51,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-14 17:45:51,362 INFO L933 BasicCegarLoop]: 1022 mSDtfsCounter, 947 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 288 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 4137 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:45:51,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1038 Valid, 4137 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 693 Invalid, 7 Unknown, 0 Unchecked, 17.4s Time] [2021-12-14 17:45:51,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2021-12-14 17:45:51,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2259. [2021-12-14 17:45:51,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2259 states, 1636 states have (on average 1.3380195599022005) internal successors, (2189), 1658 states have internal predecessors, (2189), 499 states have call successors, (499), 116 states have call predecessors, (499), 123 states have return successors, (546), 500 states have call predecessors, (546), 498 states have call successors, (546) [2021-12-14 17:45:51,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 3234 transitions. [2021-12-14 17:45:51,455 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 3234 transitions. Word has length 39 [2021-12-14 17:45:51,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:45:51,456 INFO L470 AbstractCegarLoop]: Abstraction has 2259 states and 3234 transitions. [2021-12-14 17:45:51,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-14 17:45:51,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 3234 transitions. [2021-12-14 17:45:51,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-12-14 17:45:51,473 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:45:51,474 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:45:51,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:45:51,475 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:45:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:45:51,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2071322685, now seen corresponding path program 1 times [2021-12-14 17:45:51,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:45:51,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902307504] [2021-12-14 17:45:51,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:45:51,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:45:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:51,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:45:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:45:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:51,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:45:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:51,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:45:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:52,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 17:45:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:52,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:45:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:52,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:45:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:45:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:45:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 17:45:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:45:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 17:45:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:45:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:45:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:45:53,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 17:45:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:45:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 17:45:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:45:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:45:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:45:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 17:45:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:45:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 17:45:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:45:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 17:45:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:45:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:45:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:45:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 17:45:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:45:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:53,359 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 4 proven. 35 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-14 17:45:53,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:45:53,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902307504] [2021-12-14 17:45:53,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902307504] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 17:45:53,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213068727] [2021-12-14 17:45:53,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:45:53,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 17:45:53,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:45:53,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 17:45:53,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 17:45:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:45:54,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 3772 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 17:45:54,496 INFO L286 TraceCheckSpWp]: Computing forward predicates...