./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G --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 92fce7e8733fef6ba8e1d7d5b12f8bb98a90f9164efa69e5285fd66b003407a0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:13:56,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:13:56,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:13:56,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:13:56,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:13:56,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:13:56,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:13:56,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:13:56,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:13:56,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:13:56,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:13:56,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:13:56,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:13:56,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:13:56,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:13:56,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:13:56,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:13:56,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:13:56,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:13:56,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:13:56,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:13:56,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:13:56,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:13:56,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:13:56,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:13:56,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:13:56,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:13:56,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:13:56,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:13:56,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:13:56,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:13:56,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:13:56,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:13:56,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:13:56,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:13:56,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:13:56,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:13:56,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:13:56,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:13:56,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:13:56,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:13:56,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 14:13:56,289 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:13:56,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:13:56,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:13:56,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:13:56,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:13:56,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:13:56,301 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:13:56,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:13:56,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:13:56,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:13:56,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:13:56,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:13:56,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:13:56,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:13:56,304 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:13:56,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:13:56,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:13:56,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:13:56,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:13:56,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:13:56,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:13:56,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:13:56,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:13:56,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:13:56,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:13:56,307 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:13:56,307 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 14:13:56,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:13:56,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:13:56,308 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92fce7e8733fef6ba8e1d7d5b12f8bb98a90f9164efa69e5285fd66b003407a0 [2021-11-23 14:13:56,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:13:56,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:13:56,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:13:56,613 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:13:56,614 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:13:56,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-23 14:13:56,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/data/e3f850162/63dad7a4f42a4566941d1a33f0ce8ec9/FLAG52616952d [2021-11-23 14:13:57,819 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:13:57,820 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-23 14:13:57,961 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/data/e3f850162/63dad7a4f42a4566941d1a33f0ce8ec9/FLAG52616952d [2021-11-23 14:13:58,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/data/e3f850162/63dad7a4f42a4566941d1a33f0ce8ec9 [2021-11-23 14:13:58,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:13:58,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:13:58,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:13:58,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:13:58,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:13:58,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:58" (1/1) ... [2021-11-23 14:13:58,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507b07eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:58, skipping insertion in model container [2021-11-23 14:13:58,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:58" (1/1) ... [2021-11-23 14:13:58,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:13:58,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:14:06,086 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[622479,622492] [2021-11-23 14:14:06,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[622648,622661] [2021-11-23 14:14:06,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[622815,622828] [2021-11-23 14:14:06,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[622983,622996] [2021-11-23 14:14:06,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:14:06,286 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:14:07,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[622479,622492] [2021-11-23 14:14:07,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[622648,622661] [2021-11-23 14:14:07,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[622815,622828] [2021-11-23 14:14:07,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i[622983,622996] [2021-11-23 14:14:07,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:14:07,739 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:14:07,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07 WrapperNode [2021-11-23 14:14:07,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:14:07,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:14:07,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:14:07,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:14:07,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07" (1/1) ... [2021-11-23 14:14:07,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07" (1/1) ... [2021-11-23 14:14:12,367 INFO L137 Inliner]: procedures = 780, calls = 5890, calls flagged for inlining = 1789, calls inlined = 14327, statements flattened = 157848 [2021-11-23 14:14:12,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:14:12,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:14:12,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:14:12,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:14:12,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07" (1/1) ... [2021-11-23 14:14:12,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07" (1/1) ... [2021-11-23 14:14:13,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07" (1/1) ... [2021-11-23 14:14:13,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07" (1/1) ... [2021-11-23 14:14:15,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07" (1/1) ... [2021-11-23 14:14:16,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07" (1/1) ... [2021-11-23 14:14:16,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07" (1/1) ... [2021-11-23 14:14:17,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:14:17,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:14:17,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:14:17,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:14:17,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07" (1/1) ... [2021-11-23 14:14:17,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:14:17,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:14:17,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:14:17,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2796db1b-f4c3-4938-b02a-b224f3a0ca4f/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:14:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 14:14:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:14:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:14:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 14:14:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 14:14:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:14:17,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:14:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 14:14:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 14:14:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:14:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 14:14:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:14:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:14:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 14:14:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 14:14:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 14:14:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 14:14:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:14:19,207 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:14:19,209 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:16:21,958 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 14:16:21,958 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 14:16:21,958 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 14:16:21,958 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-23 14:16:21,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res#1 := 0; [2021-11-23 14:16:21,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res#1 := 0; [2021-11-23 14:16:21,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res#1 := 0; [2021-11-23 14:16:21,960 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res#1 := 0; [2021-11-23 14:16:21,960 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res#1 := 0; [2021-11-23 14:16:21,960 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 14:16:21,960 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 14:16:21,960 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res#1 := 0; [2021-11-23 14:16:21,960 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res#1 := 0; [2021-11-23 14:16:21,961 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#1: ldv_switch_3_#res#1 := 0; [2021-11-23 14:16:21,961 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res#1 := 0; [2021-11-23 14:16:21,961 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#3: ldv_switch_3_#res#1 := 0; [2021-11-23 14:16:21,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 14:16:21,973 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:16:22,081 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:16:22,082 INFO L301 CfgBuilder]: Removed 50 assume(true) statements. [2021-11-23 14:16:22,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:22 BoogieIcfgContainer [2021-11-23 14:16:22,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:16:22,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:16:22,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:16:22,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:16:22,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:13:58" (1/3) ... [2021-11-23 14:16:22,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b71d005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:16:22, skipping insertion in model container [2021-11-23 14:16:22,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:14:07" (2/3) ... [2021-11-23 14:16:22,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b71d005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:16:22, skipping insertion in model container [2021-11-23 14:16:22,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:22" (3/3) ... [2021-11-23 14:16:22,116 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-chelsio-cxgb4vf-cxgb4vf.cil.i [2021-11-23 14:16:22,123 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:16:22,123 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2021-11-23 14:16:22,296 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:16:22,320 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 [2021-11-23 14:16:22,320 INFO L340 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2021-11-23 14:16:22,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 24291 states, 24235 states have (on average 1.2508355683928203) internal successors, (30314), 24290 states have internal predecessors, (30314), 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) [2021-11-23 14:16:22,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-23 14:16:22,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:16:22,699 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:22,699 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-23 14:16:22,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:22,706 INFO L85 PathProgramCache]: Analyzing trace with hash 427500352, now seen corresponding path program 1 times [2021-11-23 14:16:22,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:22,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121151370] [2021-11-23 14:16:22,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:22,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:16:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:16:23,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:16:23,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121151370] [2021-11-23 14:16:23,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121151370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:16:23,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:16:23,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:16:23,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862105704] [2021-11-23 14:16:23,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:16:23,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:16:23,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:16:24,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:16:24,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:16:24,077 INFO L87 Difference]: Start difference. First operand has 24291 states, 24235 states have (on average 1.2508355683928203) internal successors, (30314), 24290 states have internal predecessors, (30314), 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 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2021-11-23 14:16:26,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:16:26,660 INFO L93 Difference]: Finished difference Result 70939 states and 88304 transitions. [2021-11-23 14:16:26,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:16:26,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 195 [2021-11-23 14:16:26,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:16:26,943 INFO L225 Difference]: With dead ends: 70939 [2021-11-23 14:16:26,943 INFO L226 Difference]: Without dead ends: 46476 [2021-11-23 14:16:27,003 INFO L932 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 [2021-11-23 14:16:27,008 INFO L933 BasicCegarLoop]: 29504 mSDtfsCounter, 28458 mSDsluCounter, 29412 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28458 SdHoareTripleChecker+Valid, 58916 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 14:16:27,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28458 Valid, 58916 Invalid, 39 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 14:16:27,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46476 states. [2021-11-23 14:16:28,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46476 to 46460. [2021-11-23 14:16:28,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46460 states, 46404 states have (on average 1.2160374105680545) internal successors, (56429), 46459 states have internal predecessors, (56429), 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) [2021-11-23 14:16:28,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46460 states to 46460 states and 56429 transitions. [2021-11-23 14:16:28,888 INFO L78 Accepts]: Start accepts. Automaton has 46460 states and 56429 transitions. Word has length 195 [2021-11-23 14:16:28,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:16:28,893 INFO L470 AbstractCegarLoop]: Abstraction has 46460 states and 56429 transitions. [2021-11-23 14:16:28,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2021-11-23 14:16:28,896 INFO L276 IsEmpty]: Start isEmpty. Operand 46460 states and 56429 transitions. [2021-11-23 14:16:28,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-23 14:16:28,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:16:28,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:28,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:16:28,913 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-23 14:16:28,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:28,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1780721276, now seen corresponding path program 1 times [2021-11-23 14:16:28,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:28,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267958353] [2021-11-23 14:16:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:28,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:16:29,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:16:29,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:16:29,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267958353] [2021-11-23 14:16:29,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267958353] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:16:29,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:16:29,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:16:29,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601872909] [2021-11-23 14:16:29,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:16:29,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:16:29,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:16:29,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:16:29,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:16:29,628 INFO L87 Difference]: Start difference. First operand 46460 states and 56429 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2021-11-23 14:16:31,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:16:31,499 INFO L93 Difference]: Finished difference Result 91939 states and 111697 transitions. [2021-11-23 14:16:31,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:16:31,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 209 [2021-11-23 14:16:31,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:16:31,637 INFO L225 Difference]: With dead ends: 91939 [2021-11-23 14:16:31,637 INFO L226 Difference]: Without dead ends: 45948 [2021-11-23 14:16:31,710 INFO L932 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 [2021-11-23 14:16:31,712 INFO L933 BasicCegarLoop]: 28316 mSDtfsCounter, 27778 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27778 SdHoareTripleChecker+Valid, 28841 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:16:31,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27778 Valid, 28841 Invalid, 6 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:16:31,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45948 states. [2021-11-23 14:16:33,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45948 to 45948. [2021-11-23 14:16:33,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45948 states, 45894 states have (on average 1.215649104458099) internal successors, (55791), 45947 states have internal predecessors, (55791), 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) [2021-11-23 14:16:33,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45948 states to 45948 states and 55791 transitions. [2021-11-23 14:16:33,531 INFO L78 Accepts]: Start accepts. Automaton has 45948 states and 55791 transitions. Word has length 209 [2021-11-23 14:16:33,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:16:33,534 INFO L470 AbstractCegarLoop]: Abstraction has 45948 states and 55791 transitions. [2021-11-23 14:16:33,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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) [2021-11-23 14:16:33,535 INFO L276 IsEmpty]: Start isEmpty. Operand 45948 states and 55791 transitions. [2021-11-23 14:16:33,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-23 14:16:33,543 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:16:33,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:33,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:16:33,544 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-23 14:16:33,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:33,544 INFO L85 PathProgramCache]: Analyzing trace with hash 642266825, now seen corresponding path program 1 times [2021-11-23 14:16:33,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:33,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082135068] [2021-11-23 14:16:33,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:33,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:16:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:16:34,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:16:34,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082135068] [2021-11-23 14:16:34,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082135068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:16:34,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:16:34,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:16:34,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869960960] [2021-11-23 14:16:34,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:16:34,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:16:34,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:16:34,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:16:34,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:16:34,096 INFO L87 Difference]: Start difference. First operand 45948 states and 55791 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2021-11-23 14:16:37,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:16:37,198 INFO L93 Difference]: Finished difference Result 129202 states and 156817 transitions. [2021-11-23 14:16:37,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:16:37,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 215 [2021-11-23 14:16:37,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:16:37,418 INFO L225 Difference]: With dead ends: 129202 [2021-11-23 14:16:37,419 INFO L226 Difference]: Without dead ends: 83723 [2021-11-23 14:16:37,532 INFO L932 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 [2021-11-23 14:16:37,537 INFO L933 BasicCegarLoop]: 29720 mSDtfsCounter, 23027 mSDsluCounter, 28205 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23027 SdHoareTripleChecker+Valid, 57925 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 14:16:37,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23027 Valid, 57925 Invalid, 120 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 14:16:37,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83723 states. [2021-11-23 14:16:40,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83723 to 80417. [2021-11-23 14:16:40,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80417 states, 80363 states have (on average 1.2154598509264214) internal successors, (97678), 80416 states have internal predecessors, (97678), 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) [2021-11-23 14:16:40,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80417 states to 80417 states and 97678 transitions. [2021-11-23 14:16:40,613 INFO L78 Accepts]: Start accepts. Automaton has 80417 states and 97678 transitions. Word has length 215 [2021-11-23 14:16:40,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:16:40,614 INFO L470 AbstractCegarLoop]: Abstraction has 80417 states and 97678 transitions. [2021-11-23 14:16:40,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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) [2021-11-23 14:16:40,614 INFO L276 IsEmpty]: Start isEmpty. Operand 80417 states and 97678 transitions. [2021-11-23 14:16:40,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-23 14:16:40,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:16:40,631 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:40,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 14:16:40,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-23 14:16:40,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:40,633 INFO L85 PathProgramCache]: Analyzing trace with hash -653782664, now seen corresponding path program 1 times [2021-11-23 14:16:40,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:40,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261056820] [2021-11-23 14:16:40,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:40,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:16:41,162 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:16:41,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:16:41,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261056820] [2021-11-23 14:16:41,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261056820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:16:41,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:16:41,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:16:41,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508593682] [2021-11-23 14:16:41,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:16:41,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:16:41,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:16:41,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:16:41,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:16:41,166 INFO L87 Difference]: Start difference. First operand 80417 states and 97678 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2021-11-23 14:16:44,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:16:44,909 INFO L93 Difference]: Finished difference Result 160375 states and 194845 transitions. [2021-11-23 14:16:44,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:16:44,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 220 [2021-11-23 14:16:44,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:16:45,211 INFO L225 Difference]: With dead ends: 160375 [2021-11-23 14:16:45,212 INFO L226 Difference]: Without dead ends: 120205 [2021-11-23 14:16:45,379 INFO L932 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 [2021-11-23 14:16:45,382 INFO L933 BasicCegarLoop]: 55788 mSDtfsCounter, 27470 mSDsluCounter, 28291 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27470 SdHoareTripleChecker+Valid, 84079 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 14:16:45,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27470 Valid, 84079 Invalid, 35 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 14:16:45,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120205 states. [2021-11-23 14:16:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120205 to 120193. [2021-11-23 14:16:48,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120193 states, 120139 states have (on average 1.2155919393369348) internal successors, (146040), 120192 states have internal predecessors, (146040), 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) [2021-11-23 14:16:49,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120193 states to 120193 states and 146040 transitions. [2021-11-23 14:16:49,285 INFO L78 Accepts]: Start accepts. Automaton has 120193 states and 146040 transitions. Word has length 220 [2021-11-23 14:16:49,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:16:49,286 INFO L470 AbstractCegarLoop]: Abstraction has 120193 states and 146040 transitions. [2021-11-23 14:16:49,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2021-11-23 14:16:49,287 INFO L276 IsEmpty]: Start isEmpty. Operand 120193 states and 146040 transitions. [2021-11-23 14:16:49,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-23 14:16:49,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:16:49,325 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:49,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 14:16:49,327 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-23 14:16:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:49,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1647039926, now seen corresponding path program 1 times [2021-11-23 14:16:49,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:49,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222988980] [2021-11-23 14:16:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:49,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:16:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:16:50,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:16:50,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222988980] [2021-11-23 14:16:50,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222988980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:16:50,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:16:50,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:16:50,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805235860] [2021-11-23 14:16:50,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:16:50,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:16:50,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:16:50,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:16:50,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:16:50,228 INFO L87 Difference]: Start difference. First operand 120193 states and 146040 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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) [2021-11-23 14:16:53,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:16:53,965 INFO L93 Difference]: Finished difference Result 120193 states and 146040 transitions. [2021-11-23 14:16:53,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:16:53,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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 220 [2021-11-23 14:16:53,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:16:54,184 INFO L225 Difference]: With dead ends: 120193 [2021-11-23 14:16:54,184 INFO L226 Difference]: Without dead ends: 120187 [2021-11-23 14:16:54,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:16:54,215 INFO L933 BasicCegarLoop]: 28308 mSDtfsCounter, 28110 mSDsluCounter, 28176 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28110 SdHoareTripleChecker+Valid, 56484 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 14:16:54,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28110 Valid, 56484 Invalid, 142 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 14:16:54,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120187 states. [2021-11-23 14:16:57,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120187 to 120187. [2021-11-23 14:16:57,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120187 states, 120136 states have (on average 1.2155723513351535) internal successors, (146034), 120186 states have internal predecessors, (146034), 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) [2021-11-23 14:16:58,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120187 states to 120187 states and 146034 transitions. [2021-11-23 14:16:58,064 INFO L78 Accepts]: Start accepts. Automaton has 120187 states and 146034 transitions. Word has length 220 [2021-11-23 14:16:58,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:16:58,064 INFO L470 AbstractCegarLoop]: Abstraction has 120187 states and 146034 transitions. [2021-11-23 14:16:58,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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) [2021-11-23 14:16:58,065 INFO L276 IsEmpty]: Start isEmpty. Operand 120187 states and 146034 transitions. [2021-11-23 14:16:58,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-11-23 14:16:58,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:16:58,075 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:16:58,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 14:16:58,075 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-23 14:16:58,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:16:58,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2037368871, now seen corresponding path program 1 times [2021-11-23 14:16:58,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:16:58,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274283761] [2021-11-23 14:16:58,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:16:58,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:16:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:16:58,762 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:16:58,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:16:58,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274283761] [2021-11-23 14:16:58,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274283761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:16:58,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:16:58,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:16:58,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329083099] [2021-11-23 14:16:58,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:16:58,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:16:58,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:16:58,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:16:58,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:16:58,765 INFO L87 Difference]: Start difference. First operand 120187 states and 146034 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 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)