./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.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 df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 10:03:00,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 10:03:00,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 10:03:00,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 10:03:00,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 10:03:00,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 10:03:00,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 10:03:00,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 10:03:00,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 10:03:00,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 10:03:00,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 10:03:00,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 10:03:00,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 10:03:00,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 10:03:00,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 10:03:00,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 10:03:00,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 10:03:00,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 10:03:00,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 10:03:00,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 10:03:00,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 10:03:00,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 10:03:00,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 10:03:00,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 10:03:00,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 10:03:00,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 10:03:00,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 10:03:00,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 10:03:00,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 10:03:00,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 10:03:00,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 10:03:00,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 10:03:00,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 10:03:00,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 10:03:00,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 10:03:00,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 10:03:00,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 10:03:00,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 10:03:00,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 10:03:00,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 10:03:00,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 10:03:00,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 10:03:00,238 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 10:03:00,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 10:03:00,239 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 10:03:00,239 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 10:03:00,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 10:03:00,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 10:03:00,241 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 10:03:00,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 10:03:00,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 10:03:00,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 10:03:00,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 10:03:00,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 10:03:00,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 10:03:00,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 10:03:00,242 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 10:03:00,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 10:03:00,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 10:03:00,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 10:03:00,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 10:03:00,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:03:00,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 10:03:00,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 10:03:00,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 10:03:00,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 10:03:00,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 10:03:00,244 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 10:03:00,244 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 10:03:00,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 10:03:00,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 10:03:00,244 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df4f0c8d40dc980084ec2f9936d9bc7fc71c78b40a0de276eef2539e9d717dce [2021-11-04 10:03:00,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 10:03:00,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 10:03:00,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 10:03:00,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 10:03:00,453 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 10:03:00,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-04 10:03:00,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49806ed5/5867adee0d1b476ba13d795a2b8f2521/FLAG68b4d160e [2021-11-04 10:03:01,186 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 10:03:01,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-04 10:03:01,240 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49806ed5/5867adee0d1b476ba13d795a2b8f2521/FLAG68b4d160e [2021-11-04 10:03:01,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49806ed5/5867adee0d1b476ba13d795a2b8f2521 [2021-11-04 10:03:01,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 10:03:01,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 10:03:01,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 10:03:01,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 10:03:01,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 10:03:01,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:03:01" (1/1) ... [2021-11-04 10:03:01,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168f001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:01, skipping insertion in model container [2021-11-04 10:03:01,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:03:01" (1/1) ... [2021-11-04 10:03:01,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 10:03:01,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 10:03:03,786 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-04 10:03:03,788 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-04 10:03:03,789 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-04 10:03:03,789 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-04 10:03:03,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:03:03,849 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 10:03:04,187 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[415958,415971] [2021-11-04 10:03:04,188 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416127,416140] [2021-11-04 10:03:04,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416294,416307] [2021-11-04 10:03:04,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i[416462,416475] [2021-11-04 10:03:04,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:03:04,307 INFO L208 MainTranslator]: Completed translation [2021-11-04 10:03:04,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04 WrapperNode [2021-11-04 10:03:04,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 10:03:04,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 10:03:04,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 10:03:04,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 10:03:04,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04" (1/1) ... [2021-11-04 10:03:04,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04" (1/1) ... [2021-11-04 10:03:05,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 10:03:05,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 10:03:05,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 10:03:05,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 10:03:05,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04" (1/1) ... [2021-11-04 10:03:05,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04" (1/1) ... [2021-11-04 10:03:05,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04" (1/1) ... [2021-11-04 10:03:05,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04" (1/1) ... [2021-11-04 10:03:06,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04" (1/1) ... [2021-11-04 10:03:06,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04" (1/1) ... [2021-11-04 10:03:06,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04" (1/1) ... [2021-11-04 10:03:07,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 10:03:07,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 10:03:07,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 10:03:07,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 10:03:07,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04" (1/1) ... [2021-11-04 10:03:07,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:03:07,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 10:03:07,208 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) [2021-11-04 10:03:07,216 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 [2021-11-04 10:03:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure ngene_probe [2021-11-04 10:03:07,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ngene_probe [2021-11-04 10:03:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 10:03:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 10:03:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-04 10:03:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-04 10:03:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 10:03:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 10:03:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 10:03:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 10:03:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure init_channels [2021-11-04 10:03:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure init_channels [2021-11-04 10:03:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 10:03:07,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 10:03:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 10:03:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 10:03:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 10:03:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 10:03:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 10:03:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure my_dvb_dmxdev_ts_card_init [2021-11-04 10:03:07,253 INFO L138 BoogieDeclarations]: Found implementation of procedure my_dvb_dmxdev_ts_card_init [2021-11-04 10:03:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure init_channel [2021-11-04 10:03:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure init_channel [2021-11-04 10:03:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure release_channel [2021-11-04 10:03:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure release_channel [2021-11-04 10:03:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 10:03:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure drxk_gate_ctrl [2021-11-04 10:03:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure drxk_gate_ctrl [2021-11-04 10:03:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 10:03:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 10:03:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 10:03:17,277 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 10:03:17,278 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 10:03:17,278 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-04 10:03:17,278 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-04 10:03:17,278 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-04 10:03:17,278 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 10:03:17,279 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-04 10:03:17,279 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 10:03:17,279 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-04 10:03:17,279 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 10:03:17,280 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 10:03:17,280 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 10:03:17,323 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 10:03:17,323 INFO L299 CfgBuilder]: Removed 9947 assume(true) statements. [2021-11-04 10:03:17,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:03:17 BoogieIcfgContainer [2021-11-04 10:03:17,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 10:03:17,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 10:03:17,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 10:03:17,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 10:03:17,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 10:03:01" (1/3) ... [2021-11-04 10:03:17,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724c7ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:03:17, skipping insertion in model container [2021-11-04 10:03:17,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:03:04" (2/3) ... [2021-11-04 10:03:17,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724c7ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:03:17, skipping insertion in model container [2021-11-04 10:03:17,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:03:17" (3/3) ... [2021-11-04 10:03:17,341 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-ngene-ngene.cil.i [2021-11-04 10:03:17,346 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 10:03:17,346 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 265 error locations. [2021-11-04 10:03:17,402 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 10:03:17,409 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 [2021-11-04 10:03:17,410 INFO L340 AbstractCegarLoop]: Starting to check reachability of 265 error locations. [2021-11-04 10:03:17,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 10531 states, 10232 states have (on average 1.3958170445660671) internal successors, (14282), 10496 states have internal predecessors, (14282), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-04 10:03:17,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-04 10:03:17,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:03:17,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:03:17,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-04 10:03:17,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:03:17,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1619598642, now seen corresponding path program 1 times [2021-11-04 10:03:17,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:03:17,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801292399] [2021-11-04 10:03:17,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:03:17,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:03:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:03:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:03:18,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:03:18,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801292399] [2021-11-04 10:03:18,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801292399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:03:18,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:03:18,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:03:18,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083316604] [2021-11-04 10:03:18,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:03:18,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:03:18,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:03:18,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:03:18,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:03:18,335 INFO L87 Difference]: Start difference. First operand has 10531 states, 10232 states have (on average 1.3958170445660671) internal successors, (14282), 10496 states have internal predecessors, (14282), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:03:20,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:49,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:53,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:56,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:03:59,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:04:01,836 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:04:29,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:04:50,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:04:50,159 INFO L93 Difference]: Finished difference Result 30754 states and 41938 transitions. [2021-11-04 10:04:50,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:04:50,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-04 10:04:50,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:04:50,232 INFO L225 Difference]: With dead ends: 30754 [2021-11-04 10:04:50,233 INFO L226 Difference]: Without dead ends: 19205 [2021-11-04 10:04:50,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:04:50,283 INFO L933 BasicCegarLoop]: 644 mSDtfsCounter, 13230 mSDsluCounter, 13937 mSDsCounter, 0 mSdLazyCounter, 26714 mSolverCounterSat, 11 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83700.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13233 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 26731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 94.15ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 26714 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90314.57ms IncrementalHoareTripleChecker+Time [2021-11-04 10:04:50,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13233 Valid, 1270 Invalid, 26731 Unknown, 0 Unchecked, 94.15ms Time], IncrementalHoareTripleChecker [11 Valid, 26714 Invalid, 6 Unknown, 0 Unchecked, 90314.57ms Time] [2021-11-04 10:04:50,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19205 states. [2021-11-04 10:04:50,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19205 to 18764. [2021-11-04 10:04:50,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18764 states, 18461 states have (on average 1.3340555766209847) internal successors, (24628), 18725 states have internal predecessors, (24628), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (29), 26 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-04 10:04:50,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18764 states to 18764 states and 24683 transitions. [2021-11-04 10:04:50,723 INFO L78 Accepts]: Start accepts. Automaton has 18764 states and 24683 transitions. Word has length 54 [2021-11-04 10:04:50,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:04:50,724 INFO L470 AbstractCegarLoop]: Abstraction has 18764 states and 24683 transitions. [2021-11-04 10:04:50,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:04:50,726 INFO L276 IsEmpty]: Start isEmpty. Operand 18764 states and 24683 transitions. [2021-11-04 10:04:50,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-04 10:04:50,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:04:50,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:04:50,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 10:04:50,731 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-04 10:04:50,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:04:50,733 INFO L85 PathProgramCache]: Analyzing trace with hash -366283549, now seen corresponding path program 1 times [2021-11-04 10:04:50,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:04:50,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131412453] [2021-11-04 10:04:50,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:04:50,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:04:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:04:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:04:51,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:04:51,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131412453] [2021-11-04 10:04:51,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131412453] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:04:51,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:04:51,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:04:51,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042529984] [2021-11-04 10:04:51,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:04:51,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:04:51,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:04:51,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:04:51,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:04:51,005 INFO L87 Difference]: Start difference. First operand 18764 states and 24683 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:04:53,062 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:05:04,023 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:05:18,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:05:20,740 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:05:23,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:05:26,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:05:29,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:05:42,997 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:05:45,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:05:59,087 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:06:00,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:06:02,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:06:50,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:06:50,960 INFO L93 Difference]: Finished difference Result 55050 states and 72560 transitions. [2021-11-04 10:06:50,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:06:50,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-04 10:06:50,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:06:51,078 INFO L225 Difference]: With dead ends: 55050 [2021-11-04 10:06:51,078 INFO L226 Difference]: Without dead ends: 36386 [2021-11-04 10:06:51,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:06:51,133 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 12326 mSDsluCounter, 12330 mSDsCounter, 0 mSdLazyCounter, 25115 mSolverCounterSat, 12 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107672.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12326 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 25134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 194.17ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 25115 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118191.64ms IncrementalHoareTripleChecker+Time [2021-11-04 10:06:51,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12326 Valid, 91 Invalid, 25134 Unknown, 0 Unchecked, 194.17ms Time], IncrementalHoareTripleChecker [12 Valid, 25115 Invalid, 7 Unknown, 0 Unchecked, 118191.64ms Time] [2021-11-04 10:06:51,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36386 states. [2021-11-04 10:06:51,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36386 to 35696. [2021-11-04 10:06:51,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35696 states, 35355 states have (on average 1.3389619572903408) internal successors, (47339), 35619 states have internal predecessors, (47339), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (116), 52 states have call predecessors, (116), 52 states have call successors, (116) [2021-11-04 10:06:51,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35696 states to 35696 states and 47507 transitions. [2021-11-04 10:06:51,800 INFO L78 Accepts]: Start accepts. Automaton has 35696 states and 47507 transitions. Word has length 54 [2021-11-04 10:06:51,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:06:51,800 INFO L470 AbstractCegarLoop]: Abstraction has 35696 states and 47507 transitions. [2021-11-04 10:06:51,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:06:51,801 INFO L276 IsEmpty]: Start isEmpty. Operand 35696 states and 47507 transitions. [2021-11-04 10:06:51,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-04 10:06:51,804 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:06:51,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:06:51,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 10:06:51,805 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting release_channelErr0ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-04 10:06:51,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:06:51,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1004848618, now seen corresponding path program 1 times [2021-11-04 10:06:51,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:06:51,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950539051] [2021-11-04 10:06:51,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:06:51,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:06:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:06:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:06:52,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:06:52,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950539051] [2021-11-04 10:06:52,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950539051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:06:52,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:06:52,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:06:52,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182163183] [2021-11-04 10:06:52,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:06:52,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:06:52,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:06:52,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:06:52,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:06:52,020 INFO L87 Difference]: Start difference. First operand 35696 states and 47507 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:06:55,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:07:38,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:07:41,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:07:44,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:07:48,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:07:50,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:08:15,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:08:45,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:08:45,328 INFO L93 Difference]: Finished difference Result 57094 states and 75746 transitions. [2021-11-04 10:08:45,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:08:45,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-04 10:08:45,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:08:45,378 INFO L225 Difference]: With dead ends: 57094 [2021-11-04 10:08:45,378 INFO L226 Difference]: Without dead ends: 21498 [2021-11-04 10:08:45,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.91ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:08:45,437 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 1585 mSDsluCounter, 12612 mSDsCounter, 0 mSdLazyCounter, 25510 mSolverCounterSat, 21 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100824.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 25537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 82.36ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25510 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111938.00ms IncrementalHoareTripleChecker+Time [2021-11-04 10:08:45,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 52 Invalid, 25537 Unknown, 0 Unchecked, 82.36ms Time], IncrementalHoareTripleChecker [21 Valid, 25510 Invalid, 6 Unknown, 0 Unchecked, 111938.00ms Time] [2021-11-04 10:08:45,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21498 states. [2021-11-04 10:08:45,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21498 to 21384. [2021-11-04 10:08:45,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21384 states, 21081 states have (on average 1.3343769270907453) internal successors, (28130), 21345 states have internal predecessors, (28130), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (52), 26 states have call predecessors, (52), 26 states have call successors, (52) [2021-11-04 10:08:45,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21384 states to 21384 states and 28208 transitions. [2021-11-04 10:08:45,786 INFO L78 Accepts]: Start accepts. Automaton has 21384 states and 28208 transitions. Word has length 69 [2021-11-04 10:08:45,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:08:45,791 INFO L470 AbstractCegarLoop]: Abstraction has 21384 states and 28208 transitions. [2021-11-04 10:08:45,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:08:45,791 INFO L276 IsEmpty]: Start isEmpty. Operand 21384 states and 28208 transitions. [2021-11-04 10:08:45,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-04 10:08:45,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:08:45,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:08:45,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 10:08:45,797 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-04 10:08:45,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:08:45,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2044679664, now seen corresponding path program 1 times [2021-11-04 10:08:45,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:08:45,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088834502] [2021-11-04 10:08:45,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:08:45,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:08:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:08:46,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:08:46,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:08:46,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088834502] [2021-11-04 10:08:46,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088834502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:08:46,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:08:46,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:08:46,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625558320] [2021-11-04 10:08:46,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:08:46,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:08:46,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:08:46,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:08:46,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:08:46,048 INFO L87 Difference]: Start difference. First operand 21384 states and 28208 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:08:48,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:08:56,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:08:58,634 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:09:08,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:09:14,484 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:09:16,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:09:29,542 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:09:51,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:09:54,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:09:58,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:01,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:04,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:10:36,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:11:12,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:11:12,502 INFO L93 Difference]: Finished difference Result 59550 states and 78558 transitions. [2021-11-04 10:11:12,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:11:12,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-04 10:11:12,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:11:12,579 INFO L225 Difference]: With dead ends: 59550 [2021-11-04 10:11:12,579 INFO L226 Difference]: Without dead ends: 38266 [2021-11-04 10:11:12,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:11:12,622 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 11403 mSDsluCounter, 12767 mSDsCounter, 0 mSdLazyCounter, 25524 mSolverCounterSat, 7 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 126770.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11405 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 25540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 91.91ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25524 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 144699.29ms IncrementalHoareTripleChecker+Time [2021-11-04 10:11:12,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11405 Valid, 67 Invalid, 25540 Unknown, 0 Unchecked, 91.91ms Time], IncrementalHoareTripleChecker [7 Valid, 25524 Invalid, 9 Unknown, 0 Unchecked, 144699.29ms Time] [2021-11-04 10:11:12,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38266 states. [2021-11-04 10:11:13,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38266 to 37651. [2021-11-04 10:11:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37651 states, 37310 states have (on average 1.3364781559903511) internal successors, (49864), 37574 states have internal predecessors, (49864), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (112), 52 states have call predecessors, (112), 52 states have call successors, (112) [2021-11-04 10:11:13,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37651 states to 37651 states and 50028 transitions. [2021-11-04 10:11:13,168 INFO L78 Accepts]: Start accepts. Automaton has 37651 states and 50028 transitions. Word has length 77 [2021-11-04 10:11:13,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:11:13,169 INFO L470 AbstractCegarLoop]: Abstraction has 37651 states and 50028 transitions. [2021-11-04 10:11:13,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:11:13,169 INFO L276 IsEmpty]: Start isEmpty. Operand 37651 states and 50028 transitions. [2021-11-04 10:11:13,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-04 10:11:13,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:11:13,171 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:11:13,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 10:11:13,171 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-04 10:11:13,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:11:13,171 INFO L85 PathProgramCache]: Analyzing trace with hash 178101844, now seen corresponding path program 1 times [2021-11-04 10:11:13,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:11:13,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574282940] [2021-11-04 10:11:13,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:11:13,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:11:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:11:13,377 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:11:13,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:11:13,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574282940] [2021-11-04 10:11:13,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574282940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:11:13,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:11:13,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:11:13,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79365228] [2021-11-04 10:11:13,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:11:13,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:11:13,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:11:13,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:11:13,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:11:13,380 INFO L87 Difference]: Start difference. First operand 37651 states and 50028 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:11:15,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:11:33,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:11:36,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:11:48,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:11:52,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:11:56,327 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:12:41,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:12:44,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:12:48,484 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:12:51,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:12:54,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:13:29,513 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:13:31,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:13:39,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:14:10,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:14:10,387 INFO L93 Difference]: Finished difference Result 111026 states and 147779 transitions. [2021-11-04 10:14:10,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:14:10,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-04 10:14:10,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:14:10,533 INFO L225 Difference]: With dead ends: 111026 [2021-11-04 10:14:10,534 INFO L226 Difference]: Without dead ends: 73820 [2021-11-04 10:14:10,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:14:10,609 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 11988 mSDsluCounter, 12752 mSDsCounter, 0 mSdLazyCounter, 26777 mSolverCounterSat, 9 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 148956.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11991 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 26796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 108.12ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26777 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 174470.13ms IncrementalHoareTripleChecker+Time [2021-11-04 10:14:10,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11991 Valid, 67 Invalid, 26796 Unknown, 0 Unchecked, 108.12ms Time], IncrementalHoareTripleChecker [9 Valid, 26777 Invalid, 10 Unknown, 0 Unchecked, 174470.13ms Time] [2021-11-04 10:14:10,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73820 states. [2021-11-04 10:14:11,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73820 to 73383. [2021-11-04 10:14:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73383 states, 72966 states have (on average 1.3385960584381766) internal successors, (97672), 73230 states have internal predecessors, (97672), 104 states have call successors, (104), 48 states have call predecessors, (104), 48 states have return successors, (240), 104 states have call predecessors, (240), 104 states have call successors, (240) [2021-11-04 10:14:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73383 states to 73383 states and 98016 transitions. [2021-11-04 10:14:11,915 INFO L78 Accepts]: Start accepts. Automaton has 73383 states and 98016 transitions. Word has length 87 [2021-11-04 10:14:11,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:14:11,916 INFO L470 AbstractCegarLoop]: Abstraction has 73383 states and 98016 transitions. [2021-11-04 10:14:11,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:14:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 73383 states and 98016 transitions. [2021-11-04 10:14:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-04 10:14:11,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:14:11,918 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:14:11,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 10:14:11,919 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [init_channelErr0ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr1ASSERT_VIOLATIONERROR_FUNCTION, init_channelErr2ASSERT_VIOLATIONERROR_FUNCTION (and 262 more)] === [2021-11-04 10:14:11,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:14:11,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1101761834, now seen corresponding path program 1 times [2021-11-04 10:14:11,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:14:11,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658229058] [2021-11-04 10:14:11,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:14:11,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:14:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:14:12,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:14:12,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:14:12,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658229058] [2021-11-04 10:14:12,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658229058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:14:12,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:14:12,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:14:12,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296555670] [2021-11-04 10:14:12,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:14:12,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:14:12,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:14:12,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:14:12,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:14:12,375 INFO L87 Difference]: Start difference. First operand 73383 states and 98016 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 10:14:14,451 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:14:36,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:14:58,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:44,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:49,061 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:53,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:15:57,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:01,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:16:56,394 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15