./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-net-ethernet-micrel-ksz884x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-net-ethernet-micrel-ksz884x.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 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 19:01:16,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 19:01:16,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 19:01:17,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 19:01:17,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 19:01:17,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 19:01:17,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 19:01:17,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 19:01:17,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 19:01:17,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 19:01:17,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 19:01:17,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 19:01:17,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 19:01:17,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 19:01:17,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 19:01:17,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 19:01:17,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 19:01:17,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 19:01:17,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 19:01:17,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 19:01:17,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 19:01:17,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 19:01:17,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 19:01:17,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 19:01:17,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 19:01:17,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 19:01:17,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 19:01:17,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 19:01:17,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 19:01:17,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 19:01:17,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 19:01:17,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 19:01:17,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 19:01:17,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 19:01:17,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 19:01:17,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 19:01:17,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 19:01:17,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 19:01:17,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 19:01:17,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 19:01:17,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 19:01:17,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 19:01:17,110 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 19:01:17,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 19:01:17,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 19:01:17,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 19:01:17,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 19:01:17,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 19:01:17,114 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 19:01:17,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 19:01:17,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 19:01:17,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 19:01:17,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 19:01:17,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 19:01:17,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 19:01:17,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 19:01:17,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 19:01:17,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 19:01:17,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 19:01:17,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 19:01:17,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 19:01:17,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:01:17,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 19:01:17,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 19:01:17,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 19:01:17,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 19:01:17,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 19:01:17,117 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 19:01:17,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 19:01:17,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 19:01:17,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 19:01:17,117 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 [2021-11-06 19:01:17,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 19:01:17,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 19:01:17,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 19:01:17,360 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 19:01:17,361 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 19:01:17,361 INFO L432 ainManager$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-net-ethernet-micrel-ksz884x.cil.i [2021-11-06 19:01:17,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e2d22d87/b6ebe1b57d5b4cf6b8dc7659b220b963/FLAG6de1c6433 [2021-11-06 19:01:18,049 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 19:01:18,050 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-net-ethernet-micrel-ksz884x.cil.i [2021-11-06 19:01:18,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e2d22d87/b6ebe1b57d5b4cf6b8dc7659b220b963/FLAG6de1c6433 [2021-11-06 19:01:18,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e2d22d87/b6ebe1b57d5b4cf6b8dc7659b220b963 [2021-11-06 19:01:18,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 19:01:18,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 19:01:18,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 19:01:18,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 19:01:18,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 19:01:18,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:01:18" (1/1) ... [2021-11-06 19:01:18,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b06661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:18, skipping insertion in model container [2021-11-06 19:01:18,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:01:18" (1/1) ... [2021-11-06 19:01:18,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 19:01:18,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 19:01:21,560 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-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2021-11-06 19:01:21,564 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-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2021-11-06 19:01:21,565 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-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2021-11-06 19:01:21,565 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-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2021-11-06 19:01:21,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:01:21,673 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 19:01:22,008 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-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2021-11-06 19:01:22,010 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-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2021-11-06 19:01:22,010 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-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2021-11-06 19:01:22,011 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-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2021-11-06 19:01:22,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:01:22,266 INFO L208 MainTranslator]: Completed translation [2021-11-06 19:01:22,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22 WrapperNode [2021-11-06 19:01:22,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 19:01:22,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 19:01:22,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 19:01:22,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 19:01:22,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22" (1/1) ... [2021-11-06 19:01:22,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22" (1/1) ... [2021-11-06 19:01:23,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 19:01:23,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 19:01:23,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 19:01:23,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 19:01:23,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22" (1/1) ... [2021-11-06 19:01:23,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22" (1/1) ... [2021-11-06 19:01:23,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22" (1/1) ... [2021-11-06 19:01:23,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22" (1/1) ... [2021-11-06 19:01:24,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22" (1/1) ... [2021-11-06 19:01:24,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22" (1/1) ... [2021-11-06 19:01:25,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22" (1/1) ... [2021-11-06 19:01:25,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 19:01:25,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 19:01:25,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 19:01:25,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 19:01:25,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22" (1/1) ... [2021-11-06 19:01:25,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:01:25,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 19:01:25,264 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) [2021-11-06 19:01:25,295 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 [2021-11-06 19:01:25,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 19:01:25,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 19:01:25,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 19:01:25,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 19:01:25,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 19:01:25,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 19:01:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 19:01:25,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 19:01:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 19:01:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 19:01:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 19:01:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 19:01:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 19:01:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 19:01:25,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 19:02:24,820 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 19:02:24,821 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 19:02:24,821 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 19:02:24,821 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 19:02:24,823 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 19:02:24,824 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 19:02:24,861 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 19:02:24,862 INFO L299 CfgBuilder]: Removed 9514 assume(true) statements. [2021-11-06 19:02:24,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:02:24 BoogieIcfgContainer [2021-11-06 19:02:24,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 19:02:24,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 19:02:24,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 19:02:24,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 19:02:24,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:01:18" (1/3) ... [2021-11-06 19:02:24,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55108c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:02:24, skipping insertion in model container [2021-11-06 19:02:24,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:01:22" (2/3) ... [2021-11-06 19:02:24,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55108c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:02:24, skipping insertion in model container [2021-11-06 19:02:24,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:02:24" (3/3) ... [2021-11-06 19:02:24,878 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-06 19:02:24,881 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 19:02:24,882 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2021-11-06 19:02:24,933 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 19:02:24,936 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 [2021-11-06 19:02:24,937 INFO L340 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2021-11-06 19:02:25,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 9011 states, 8942 states have (on average 1.3325877879668977) internal successors, (11916), 9010 states have internal predecessors, (11916), 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) [2021-11-06 19:02:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-06 19:02:25,033 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:02:25,034 INFO L513 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] [2021-11-06 19:02:25,034 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:02:25,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:02:25,042 INFO L85 PathProgramCache]: Analyzing trace with hash -105954818, now seen corresponding path program 1 times [2021-11-06 19:02:25,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:02:25,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006295350] [2021-11-06 19:02:25,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:02:25,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:02:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:02:25,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:02:25,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:02:25,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006295350] [2021-11-06 19:02:25,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006295350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:02:25,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:02:25,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:02:25,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089873376] [2021-11-06 19:02:25,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:02:25,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:02:25,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:02:25,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:02:25,624 INFO L87 Difference]: Start difference. First operand has 9011 states, 8942 states have (on average 1.3325877879668977) internal successors, (11916), 9010 states have internal predecessors, (11916), 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) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-06 19:02:26,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:02:26,722 INFO L93 Difference]: Finished difference Result 26036 states and 34446 transitions. [2021-11-06 19:02:26,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:02:26,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2021-11-06 19:02:26,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:02:26,793 INFO L225 Difference]: With dead ends: 26036 [2021-11-06 19:02:26,793 INFO L226 Difference]: Without dead ends: 16776 [2021-11-06 19:02:26,816 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:02:26,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16776 states. [2021-11-06 19:02:27,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16776 to 16378. [2021-11-06 19:02:27,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16378 states, 16309 states have (on average 1.3054755043227666) internal successors, (21291), 16377 states have internal predecessors, (21291), 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) [2021-11-06 19:02:27,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16378 states to 16378 states and 21291 transitions. [2021-11-06 19:02:27,225 INFO L78 Accepts]: Start accepts. Automaton has 16378 states and 21291 transitions. Word has length 73 [2021-11-06 19:02:27,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:02:27,225 INFO L470 AbstractCegarLoop]: Abstraction has 16378 states and 21291 transitions. [2021-11-06 19:02:27,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-06 19:02:27,226 INFO L276 IsEmpty]: Start isEmpty. Operand 16378 states and 21291 transitions. [2021-11-06 19:02:27,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-06 19:02:27,229 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:02:27,229 INFO L513 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] [2021-11-06 19:02:27,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 19:02:27,229 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:02:27,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:02:27,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1581454207, now seen corresponding path program 1 times [2021-11-06 19:02:27,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:02:27,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614091242] [2021-11-06 19:02:27,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:02:27,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:02:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:02:27,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:02:27,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:02:27,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614091242] [2021-11-06 19:02:27,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614091242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:02:27,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:02:27,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:02:27,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772556794] [2021-11-06 19:02:27,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:02:27,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:02:27,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:02:27,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:02:27,437 INFO L87 Difference]: Start difference. First operand 16378 states and 21291 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-11-06 19:02:29,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:02:29,216 INFO L93 Difference]: Finished difference Result 48592 states and 63290 transitions. [2021-11-06 19:02:29,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:02:29,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-11-06 19:02:29,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:02:29,324 INFO L225 Difference]: With dead ends: 48592 [2021-11-06 19:02:29,324 INFO L226 Difference]: Without dead ends: 32370 [2021-11-06 19:02:29,358 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:02:29,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32370 states. [2021-11-06 19:02:29,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32370 to 32304. [2021-11-06 19:02:29,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32304 states, 32235 states have (on average 1.306871413060338) internal successors, (42127), 32303 states have internal predecessors, (42127), 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) [2021-11-06 19:02:30,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32304 states to 32304 states and 42127 transitions. [2021-11-06 19:02:30,023 INFO L78 Accepts]: Start accepts. Automaton has 32304 states and 42127 transitions. Word has length 75 [2021-11-06 19:02:30,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:02:30,025 INFO L470 AbstractCegarLoop]: Abstraction has 32304 states and 42127 transitions. [2021-11-06 19:02:30,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-11-06 19:02:30,025 INFO L276 IsEmpty]: Start isEmpty. Operand 32304 states and 42127 transitions. [2021-11-06 19:02:30,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-06 19:02:30,027 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:02:30,027 INFO L513 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, 1, 1] [2021-11-06 19:02:30,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 19:02:30,032 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:02:30,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:02:30,033 INFO L85 PathProgramCache]: Analyzing trace with hash 428041036, now seen corresponding path program 1 times [2021-11-06 19:02:30,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:02:30,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088552174] [2021-11-06 19:02:30,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:02:30,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:02:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:02:30,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:02:30,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:02:30,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088552174] [2021-11-06 19:02:30,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088552174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:02:30,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:02:30,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:02:30,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963545418] [2021-11-06 19:02:30,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:02:30,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:02:30,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:02:30,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:02:30,295 INFO L87 Difference]: Start difference. First operand 32304 states and 42127 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-06 19:02:31,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:02:31,995 INFO L93 Difference]: Finished difference Result 91100 states and 118731 transitions. [2021-11-06 19:02:31,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:02:31,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-06 19:02:31,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:02:32,148 INFO L225 Difference]: With dead ends: 91100 [2021-11-06 19:02:32,149 INFO L226 Difference]: Without dead ends: 58952 [2021-11-06 19:02:32,217 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:02:32,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58952 states. [2021-11-06 19:02:33,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58952 to 57956. [2021-11-06 19:02:33,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57956 states, 57887 states have (on average 1.306113635185793) internal successors, (75607), 57955 states have internal predecessors, (75607), 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) [2021-11-06 19:02:33,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57956 states to 57956 states and 75607 transitions. [2021-11-06 19:02:33,574 INFO L78 Accepts]: Start accepts. Automaton has 57956 states and 75607 transitions. Word has length 79 [2021-11-06 19:02:33,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:02:33,576 INFO L470 AbstractCegarLoop]: Abstraction has 57956 states and 75607 transitions. [2021-11-06 19:02:33,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-06 19:02:33,577 INFO L276 IsEmpty]: Start isEmpty. Operand 57956 states and 75607 transitions. [2021-11-06 19:02:33,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-06 19:02:33,579 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:02:33,579 INFO L513 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, 1, 1, 1, 1, 1, 1] [2021-11-06 19:02:33,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 19:02:33,580 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:02:33,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:02:33,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1875511950, now seen corresponding path program 1 times [2021-11-06 19:02:33,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:02:33,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224700057] [2021-11-06 19:02:33,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:02:33,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:02:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:02:33,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:02:33,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:02:33,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224700057] [2021-11-06 19:02:33,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224700057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:02:33,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:02:33,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 19:02:33,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821689327] [2021-11-06 19:02:33,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 19:02:33,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:02:33,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 19:02:33,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-06 19:02:33,986 INFO L87 Difference]: Start difference. First operand 57956 states and 75607 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2021-11-06 19:02:36,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:02:36,990 INFO L93 Difference]: Finished difference Result 119866 states and 156123 transitions. [2021-11-06 19:02:36,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 19:02:36,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 83 [2021-11-06 19:02:36,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:02:37,163 INFO L225 Difference]: With dead ends: 119866 [2021-11-06 19:02:37,163 INFO L226 Difference]: Without dead ends: 62066 [2021-11-06 19:02:37,286 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-06 19:02:37,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62066 states. [2021-11-06 19:02:38,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62066 to 61830. [2021-11-06 19:02:38,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61830 states, 61761 states have (on average 1.301160926798465) internal successors, (80361), 61829 states have internal predecessors, (80361), 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) [2021-11-06 19:02:38,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61830 states to 61830 states and 80361 transitions. [2021-11-06 19:02:38,752 INFO L78 Accepts]: Start accepts. Automaton has 61830 states and 80361 transitions. Word has length 83 [2021-11-06 19:02:38,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:02:38,753 INFO L470 AbstractCegarLoop]: Abstraction has 61830 states and 80361 transitions. [2021-11-06 19:02:38,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2021-11-06 19:02:38,753 INFO L276 IsEmpty]: Start isEmpty. Operand 61830 states and 80361 transitions. [2021-11-06 19:02:38,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-06 19:02:38,755 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:02:38,755 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 19:02:38,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 19:02:38,756 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:02:38,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:02:38,756 INFO L85 PathProgramCache]: Analyzing trace with hash 313540578, now seen corresponding path program 1 times [2021-11-06 19:02:38,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:02:38,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505359282] [2021-11-06 19:02:38,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:02:38,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:02:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:02:38,951 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:02:38,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:02:38,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505359282] [2021-11-06 19:02:38,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505359282] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:02:38,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:02:38,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:02:38,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107735499] [2021-11-06 19:02:38,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:02:38,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:02:38,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:02:38,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:02:38,954 INFO L87 Difference]: Start difference. First operand 61830 states and 80361 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-06 19:02:41,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:02:41,083 INFO L93 Difference]: Finished difference Result 165385 states and 215057 transitions. [2021-11-06 19:02:41,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:02:41,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2021-11-06 19:02:41,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:02:41,461 INFO L225 Difference]: With dead ends: 165385 [2021-11-06 19:02:41,461 INFO L226 Difference]: Without dead ends: 103711 [2021-11-06 19:02:41,585 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:02:41,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103711 states. [2021-11-06 19:02:43,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103711 to 103415. [2021-11-06 19:02:43,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103415 states, 103346 states have (on average 1.3021500590250228) internal successors, (134572), 103414 states have internal predecessors, (134572), 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) [2021-11-06 19:02:44,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103415 states to 103415 states and 134572 transitions. [2021-11-06 19:02:44,097 INFO L78 Accepts]: Start accepts. Automaton has 103415 states and 134572 transitions. Word has length 94 [2021-11-06 19:02:44,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:02:44,098 INFO L470 AbstractCegarLoop]: Abstraction has 103415 states and 134572 transitions. [2021-11-06 19:02:44,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-06 19:02:44,098 INFO L276 IsEmpty]: Start isEmpty. Operand 103415 states and 134572 transitions. [2021-11-06 19:02:44,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-06 19:02:44,101 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:02:44,101 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:02:44,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 19:02:44,101 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:02:44,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:02:44,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1750441019, now seen corresponding path program 1 times [2021-11-06 19:02:44,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:02:44,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279996657] [2021-11-06 19:02:44,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:02:44,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:02:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:02:44,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:02:44,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:02:44,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279996657] [2021-11-06 19:02:44,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279996657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:02:44,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:02:44,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:02:44,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461127847] [2021-11-06 19:02:44,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:02:44,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:02:44,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:02:44,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:02:44,279 INFO L87 Difference]: Start difference. First operand 103415 states and 134572 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-06 19:02:48,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:02:48,276 INFO L93 Difference]: Finished difference Result 262756 states and 342978 transitions. [2021-11-06 19:02:48,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:02:48,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2021-11-06 19:02:48,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:02:48,666 INFO L225 Difference]: With dead ends: 262756 [2021-11-06 19:02:48,666 INFO L226 Difference]: Without dead ends: 159497 [2021-11-06 19:02:48,817 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:02:48,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159497 states. [2021-11-06 19:02:52,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159497 to 155403. [2021-11-06 19:02:52,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155403 states, 155334 states have (on average 1.3083999639486525) internal successors, (203239), 155402 states have internal predecessors, (203239), 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) [2021-11-06 19:02:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155403 states to 155403 states and 203239 transitions. [2021-11-06 19:02:52,877 INFO L78 Accepts]: Start accepts. Automaton has 155403 states and 203239 transitions. Word has length 98 [2021-11-06 19:02:52,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:02:52,877 INFO L470 AbstractCegarLoop]: Abstraction has 155403 states and 203239 transitions. [2021-11-06 19:02:52,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-06 19:02:52,878 INFO L276 IsEmpty]: Start isEmpty. Operand 155403 states and 203239 transitions. [2021-11-06 19:02:52,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-06 19:02:52,879 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:02:52,879 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:02:52,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 19:02:52,879 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-06 19:02:52,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:02:52,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1019799535, now seen corresponding path program 1 times [2021-11-06 19:02:52,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:02:52,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010007607] [2021-11-06 19:02:52,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:02:52,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:02:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:02:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:02:53,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:02:53,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010007607] [2021-11-06 19:02:53,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010007607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:02:53,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:02:53,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:02:53,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684540938] [2021-11-06 19:02:53,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:02:53,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:02:53,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:02:53,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:02:53,057 INFO L87 Difference]: Start difference. First operand 155403 states and 203239 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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)