./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.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 f665efa4a665554cf7543e013a29ff4c6ab086907b4fe7628b89c7f514f54a81 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:19:24,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:19:24,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:19:24,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:19:24,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:19:24,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:19:24,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:19:24,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:19:24,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:19:24,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:19:24,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:19:24,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:19:24,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:19:24,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:19:24,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:19:24,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:19:24,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:19:24,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:19:24,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:19:24,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:19:24,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:19:24,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:19:24,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:19:24,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:19:24,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:19:24,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:19:24,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:19:24,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:19:24,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:19:24,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:19:24,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:19:24,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:19:24,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:19:24,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:19:24,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:19:24,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:19:24,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:19:24,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:19:24,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:19:24,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:19:24,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:19:24,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:19:24,618 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:19:24,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:19:24,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:19:24,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:19:24,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:19:24,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:19:24,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:19:24,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:19:24,620 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:19:24,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:19:24,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:19:24,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:19:24,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:19:24,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:19:24,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:19:24,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:19:24,622 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:19:24,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:19:24,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:19:24,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:19:24,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:19:24,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:19:24,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:19:24,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:19:24,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:19:24,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:19:24,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:19:24,624 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:19:24,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:19:24,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:19:24,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:19:24,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f665efa4a665554cf7543e013a29ff4c6ab086907b4fe7628b89c7f514f54a81 [2021-12-14 18:19:24,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:19:24,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:19:24,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:19:24,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:19:24,828 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:19:24,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2021-12-14 18:19:24,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e4d14bd/d001f114d83c451eae686bbc0a69c2e2/FLAG852b1e866 [2021-12-14 18:19:25,410 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:19:25,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2021-12-14 18:19:25,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e4d14bd/d001f114d83c451eae686bbc0a69c2e2/FLAG852b1e866 [2021-12-14 18:19:25,638 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e4d14bd/d001f114d83c451eae686bbc0a69c2e2 [2021-12-14 18:19:25,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:19:25,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:19:25,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:19:25,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:19:25,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:19:25,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:19:25" (1/1) ... [2021-12-14 18:19:25,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f902b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:25, skipping insertion in model container [2021-12-14 18:19:25,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:19:25" (1/1) ... [2021-12-14 18:19:25,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:19:25,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:19:26,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i[298813,298826] [2021-12-14 18:19:26,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:19:26,922 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:19:27,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i[298813,298826] [2021-12-14 18:19:27,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:19:27,378 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:19:27,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27 WrapperNode [2021-12-14 18:19:27,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:19:27,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:19:27,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:19:27,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:19:27,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27" (1/1) ... [2021-12-14 18:19:27,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27" (1/1) ... [2021-12-14 18:19:27,562 INFO L137 Inliner]: procedures = 237, calls = 2052, calls flagged for inlining = 107, calls inlined = 104, statements flattened = 4578 [2021-12-14 18:19:27,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:19:27,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:19:27,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:19:27,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:19:27,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27" (1/1) ... [2021-12-14 18:19:27,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27" (1/1) ... [2021-12-14 18:19:27,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27" (1/1) ... [2021-12-14 18:19:27,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27" (1/1) ... [2021-12-14 18:19:27,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27" (1/1) ... [2021-12-14 18:19:27,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27" (1/1) ... [2021-12-14 18:19:27,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27" (1/1) ... [2021-12-14 18:19:27,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:19:27,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:19:27,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:19:27,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:19:27,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27" (1/1) ... [2021-12-14 18:19:27,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:19:27,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:19:27,831 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 18:19:27,879 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 18:19:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2021-12-14 18:19:27,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2021-12-14 18:19:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_ioctl [2021-12-14 18:19:27,896 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_ioctl [2021-12-14 18:19:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:19:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:19:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:19:27,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:19:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2021-12-14 18:19:27,897 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2021-12-14 18:19:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:19:27,897 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:19:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2021-12-14 18:19:27,897 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2021-12-14 18:19:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2021-12-14 18:19:27,898 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2021-12-14 18:19:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 18:19:27,898 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 18:19:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-14 18:19:27,898 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-14 18:19:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 18:19:27,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 18:19:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:19:27,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:19:27,899 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-14 18:19:27,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-14 18:19:27,899 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2021-12-14 18:19:27,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2021-12-14 18:19:27,899 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-14 18:19:27,899 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-14 18:19:27,899 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2021-12-14 18:19:27,900 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2021-12-14 18:19:27,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:19:27,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:19:27,900 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2021-12-14 18:19:27,900 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2021-12-14 18:19:27,900 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2021-12-14 18:19:27,900 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2021-12-14 18:19:27,900 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:19:27,901 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:19:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 18:19:27,901 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 18:19:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2021-12-14 18:19:27,901 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2021-12-14 18:19:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-12-14 18:19:27,901 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-12-14 18:19:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2021-12-14 18:19:27,902 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2021-12-14 18:19:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 18:19:27,902 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 18:19:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:19:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:19:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2021-12-14 18:19:27,903 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2021-12-14 18:19:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2021-12-14 18:19:27,903 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2021-12-14 18:19:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-14 18:19:27,904 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-14 18:19:27,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-14 18:19:27,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-14 18:19:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2021-12-14 18:19:27,905 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2021-12-14 18:19:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:19:27,905 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:19:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:19:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:19:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2021-12-14 18:19:27,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2021-12-14 18:19:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2021-12-14 18:19:27,906 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2021-12-14 18:19:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-14 18:19:27,906 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-14 18:19:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-14 18:19:27,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-14 18:19:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2021-12-14 18:19:27,907 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2021-12-14 18:19:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:19:27,908 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:19:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-14 18:19:27,908 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-14 18:19:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:19:27,908 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:19:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2021-12-14 18:19:27,908 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2021-12-14 18:19:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2021-12-14 18:19:27,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2021-12-14 18:19:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:19:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2021-12-14 18:19:27,909 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2021-12-14 18:19:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2021-12-14 18:19:27,909 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2021-12-14 18:19:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:19:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2021-12-14 18:19:27,910 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2021-12-14 18:19:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-14 18:19:27,911 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-14 18:19:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2021-12-14 18:19:27,911 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2021-12-14 18:19:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-14 18:19:27,911 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-14 18:19:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:19:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:19:27,912 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:19:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:19:27,912 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:19:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2021-12-14 18:19:27,912 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2021-12-14 18:19:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-14 18:19:27,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-14 18:19:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 18:19:27,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 18:19:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2021-12-14 18:19:27,913 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2021-12-14 18:19:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-14 18:19:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-14 18:19:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:19:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-14 18:19:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-14 18:19:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-14 18:19:27,916 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-14 18:19:27,916 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2021-12-14 18:19:27,917 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2021-12-14 18:19:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-14 18:19:27,917 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-14 18:19:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:19:27,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:19:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2021-12-14 18:19:27,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2021-12-14 18:19:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2021-12-14 18:19:27,923 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2021-12-14 18:19:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:19:27,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:19:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2021-12-14 18:19:27,923 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2021-12-14 18:19:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:19:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2021-12-14 18:19:27,923 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2021-12-14 18:19:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:19:27,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:19:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:19:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:19:27,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:19:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:19:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-14 18:19:27,924 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-14 18:19:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 18:19:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-14 18:19:27,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-14 18:19:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2021-12-14 18:19:27,925 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2021-12-14 18:19:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2021-12-14 18:19:27,925 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2021-12-14 18:19:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2021-12-14 18:19:27,925 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2021-12-14 18:19:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2021-12-14 18:19:27,925 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2021-12-14 18:19:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2021-12-14 18:19:27,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2021-12-14 18:19:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2021-12-14 18:19:27,926 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2021-12-14 18:19:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2021-12-14 18:19:27,926 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2021-12-14 18:19:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-14 18:19:27,926 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-14 18:19:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2021-12-14 18:19:27,927 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2021-12-14 18:19:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-14 18:19:27,927 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-14 18:19:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-12-14 18:19:27,927 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-12-14 18:19:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:19:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-12-14 18:19:27,927 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-12-14 18:19:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2021-12-14 18:19:27,928 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2021-12-14 18:19:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-12-14 18:19:27,928 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-12-14 18:19:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:19:27,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:19:28,502 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:19:28,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:19:28,752 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:19:32,849 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:19:32,860 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:19:32,861 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:19:32,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:19:32 BoogieIcfgContainer [2021-12-14 18:19:32,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:19:32,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:19:32,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:19:32,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:19:32,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:19:25" (1/3) ... [2021-12-14 18:19:32,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6305a423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:19:32, skipping insertion in model container [2021-12-14 18:19:32,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:27" (2/3) ... [2021-12-14 18:19:32,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6305a423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:19:32, skipping insertion in model container [2021-12-14 18:19:32,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:19:32" (3/3) ... [2021-12-14 18:19:32,869 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--via-ircc.ko-entry_point.cil.out.i [2021-12-14 18:19:32,872 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:19:32,872 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:19:32,911 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:19:32,921 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 18:19:32,922 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:19:32,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 1842 states, 1142 states have (on average 1.3126094570928195) internal successors, (1499), 1173 states have internal predecessors, (1499), 618 states have call successors, (618), 81 states have call predecessors, (618), 80 states have return successors, (611), 600 states have call predecessors, (611), 611 states have call successors, (611) [2021-12-14 18:19:32,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-14 18:19:32,994 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:19:32,995 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-14 18:19:32,995 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:19:32,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:19:32,999 INFO L85 PathProgramCache]: Analyzing trace with hash -299152905, now seen corresponding path program 1 times [2021-12-14 18:19:33,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:19:33,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824977363] [2021-12-14 18:19:33,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:19:33,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:19:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:19:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:19:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:19:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:19:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:19:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 18:19:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 18:19:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 18:19:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:19:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 18:19:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:19:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:19:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:19:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 18:19:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:19:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:33,969 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-12-14 18:19:33,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:19:33,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824977363] [2021-12-14 18:19:33,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824977363] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:19:33,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:19:33,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:19:33,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424852200] [2021-12-14 18:19:33,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:19:33,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:19:33,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:19:34,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:19:34,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:19:34,010 INFO L87 Difference]: Start difference. First operand has 1842 states, 1142 states have (on average 1.3126094570928195) internal successors, (1499), 1173 states have internal predecessors, (1499), 618 states have call successors, (618), 81 states have call predecessors, (618), 80 states have return successors, (611), 600 states have call predecessors, (611), 611 states have call successors, (611) Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 18:19:38,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:19:46,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:19:46,033 INFO L93 Difference]: Finished difference Result 3738 states and 5584 transitions. [2021-12-14 18:19:46,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:19:46,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 195 [2021-12-14 18:19:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:19:46,055 INFO L225 Difference]: With dead ends: 3738 [2021-12-14 18:19:46,055 INFO L226 Difference]: Without dead ends: 1883 [2021-12-14 18:19:46,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:19:46,069 INFO L933 BasicCegarLoop]: 2271 mSDtfsCounter, 1699 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 3886 mSolverCounterSat, 2337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1970 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 6223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2337 IncrementalHoareTripleChecker+Valid, 3886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:19:46,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1970 Valid, 4460 Invalid, 6223 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2337 Valid, 3886 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2021-12-14 18:19:46,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2021-12-14 18:19:46,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1824. [2021-12-14 18:19:46,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1133 states have (on average 1.3053839364518975) internal successors, (1479), 1155 states have internal predecessors, (1479), 611 states have call successors, (611), 80 states have call predecessors, (611), 79 states have return successors, (610), 599 states have call predecessors, (610), 610 states have call successors, (610) [2021-12-14 18:19:46,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2700 transitions. [2021-12-14 18:19:46,224 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2700 transitions. Word has length 195 [2021-12-14 18:19:46,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:19:46,224 INFO L470 AbstractCegarLoop]: Abstraction has 1824 states and 2700 transitions. [2021-12-14 18:19:46,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-14 18:19:46,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2700 transitions. [2021-12-14 18:19:46,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-12-14 18:19:46,233 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:19:46,234 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-14 18:19:46,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:19:46,234 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:19:46,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:19:46,235 INFO L85 PathProgramCache]: Analyzing trace with hash 475855630, now seen corresponding path program 1 times [2021-12-14 18:19:46,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:19:46,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618263403] [2021-12-14 18:19:46,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:19:46,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:19:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:19:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:19:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:19:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:19:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:19:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 18:19:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 18:19:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 18:19:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 18:19:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-14 18:19:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:19:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 18:19:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 18:19:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 18:19:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:19:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-12-14 18:19:46,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:19:46,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618263403] [2021-12-14 18:19:46,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618263403] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:19:46,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:19:46,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 18:19:46,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213011822] [2021-12-14 18:19:46,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:19:46,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 18:19:46,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:19:46,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 18:19:46,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:19:46,675 INFO L87 Difference]: Start difference. First operand 1824 states and 2700 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:19:50,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:19:51,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:19:53,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:20:00,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:20:03,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:20:03,590 INFO L93 Difference]: Finished difference Result 5549 states and 8267 transitions. [2021-12-14 18:20:03,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-14 18:20:03,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2021-12-14 18:20:03,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:20:03,644 INFO L225 Difference]: With dead ends: 5549 [2021-12-14 18:20:03,647 INFO L226 Difference]: Without dead ends: 3747 [2021-12-14 18:20:03,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-14 18:20:03,659 INFO L933 BasicCegarLoop]: 2476 mSDtfsCounter, 5926 mSDsluCounter, 5869 mSDsCounter, 0 mSdLazyCounter, 7636 mSolverCounterSat, 7265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6400 SdHoareTripleChecker+Valid, 8345 SdHoareTripleChecker+Invalid, 14901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7265 IncrementalHoareTripleChecker+Valid, 7636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:20:03,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6400 Valid, 8345 Invalid, 14901 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7265 Valid, 7636 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2021-12-14 18:20:03,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2021-12-14 18:20:03,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3626. [2021-12-14 18:20:03,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 2250 states have (on average 1.304888888888889) internal successors, (2936), 2301 states have internal predecessors, (2936), 1214 states have call successors, (1214), 159 states have call predecessors, (1214), 161 states have return successors, (1228), 1187 states have call predecessors, (1228), 1213 states have call successors, (1228) [2021-12-14 18:20:03,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 5378 transitions. [2021-12-14 18:20:03,813 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 5378 transitions. Word has length 192 [2021-12-14 18:20:03,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:20:03,814 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 5378 transitions. [2021-12-14 18:20:03,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:20:03,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 5378 transitions. [2021-12-14 18:20:03,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-12-14 18:20:03,823 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:20:03,823 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-14 18:20:03,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:20:03,824 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:20:03,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:20:03,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1754365613, now seen corresponding path program 1 times [2021-12-14 18:20:03,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:20:03,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403307324] [2021-12-14 18:20:03,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:20:03,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:20:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:20:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:20:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:20:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:20:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:20:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 18:20:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 18:20:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-14 18:20:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-14 18:20:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 18:20:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-14 18:20:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:20:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 18:20:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 18:20:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:20:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:04,256 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-12-14 18:20:04,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:20:04,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403307324] [2021-12-14 18:20:04,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403307324] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:20:04,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:20:04,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 18:20:04,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644806358] [2021-12-14 18:20:04,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:20:04,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 18:20:04,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:20:04,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 18:20:04,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:20:04,261 INFO L87 Difference]: Start difference. First operand 3626 states and 5378 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:20:09,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:20:23,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:20:23,221 INFO L93 Difference]: Finished difference Result 11068 states and 16518 transitions. [2021-12-14 18:20:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-14 18:20:23,222 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 195 [2021-12-14 18:20:23,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:20:23,266 INFO L225 Difference]: With dead ends: 11068 [2021-12-14 18:20:23,267 INFO L226 Difference]: Without dead ends: 7464 [2021-12-14 18:20:23,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-14 18:20:23,288 INFO L933 BasicCegarLoop]: 2579 mSDtfsCounter, 5758 mSDsluCounter, 5988 mSDsCounter, 0 mSdLazyCounter, 7777 mSolverCounterSat, 7082 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6228 SdHoareTripleChecker+Valid, 8567 SdHoareTripleChecker+Invalid, 14859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7082 IncrementalHoareTripleChecker+Valid, 7777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-12-14 18:20:23,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6228 Valid, 8567 Invalid, 14859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7082 Valid, 7777 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2021-12-14 18:20:23,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7464 states. [2021-12-14 18:20:23,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7464 to 7233. [2021-12-14 18:20:23,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7233 states, 4490 states have (on average 1.3046770601336304) internal successors, (5858), 4592 states have internal predecessors, (5858), 2419 states have call successors, (2419), 317 states have call predecessors, (2419), 323 states have return successors, (2470), 2367 states have call predecessors, (2470), 2418 states have call successors, (2470) [2021-12-14 18:20:23,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7233 states to 7233 states and 10747 transitions. [2021-12-14 18:20:23,744 INFO L78 Accepts]: Start accepts. Automaton has 7233 states and 10747 transitions. Word has length 195 [2021-12-14 18:20:23,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:20:23,745 INFO L470 AbstractCegarLoop]: Abstraction has 7233 states and 10747 transitions. [2021-12-14 18:20:23,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:20:23,746 INFO L276 IsEmpty]: Start isEmpty. Operand 7233 states and 10747 transitions. [2021-12-14 18:20:23,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-12-14 18:20:23,755 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:20:23,756 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-14 18:20:23,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:20:23,756 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:20:23,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:20:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash 351077322, now seen corresponding path program 1 times [2021-12-14 18:20:23,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:20:23,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995867724] [2021-12-14 18:20:23,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:20:23,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:20:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:20:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:20:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:20:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:20:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:20:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:23,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 18:20:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 18:20:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 18:20:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:20:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 18:20:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:20:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 18:20:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 18:20:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:20:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:20:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,096 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-12-14 18:20:24,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:20:24,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995867724] [2021-12-14 18:20:24,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995867724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:20:24,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:20:24,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 18:20:24,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128520470] [2021-12-14 18:20:24,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:20:24,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 18:20:24,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:20:24,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 18:20:24,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:20:24,100 INFO L87 Difference]: Start difference. First operand 7233 states and 10747 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-14 18:20:27,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:20:29,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:20:30,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:20:32,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:20:33,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []