./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-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX --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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:37:32,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:37:32,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:37:32,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:37:32,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:37:32,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:37:32,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:37:32,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:37:32,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:37:32,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:37:32,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:37:32,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:37:32,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:37:32,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:37:32,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:37:32,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:37:32,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:37:32,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:37:32,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:37:32,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:37:32,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:37:32,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:37:32,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:37:32,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:37:32,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:37:32,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:37:32,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:37:32,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:37:32,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:37:32,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:37:32,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:37:32,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:37:32,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:37:32,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:37:32,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:37:32,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:37:32,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:37:32,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:37:32,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:37:32,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:37:32,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:37:32,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 10:37:33,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:37:33,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:37:33,035 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:37:33,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:37:33,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:37:33,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:37:33,038 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:37:33,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:37:33,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:37:33,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:37:33,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:37:33,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:37:33,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:37:33,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:37:33,042 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:37:33,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:37:33,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:37:33,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:37:33,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:37:33,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:37:33,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:37:33,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:37:33,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:37:33,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:37:33,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:37:33,045 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:37:33,045 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:37:33,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:37:33,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:37:33,047 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_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2021-11-09 10:37:33,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:37:33,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:37:33,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:37:33,408 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:37:33,409 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:37:33,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-09 10:37:33,495 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/data/72fca2095/706a03f84ce6413e874430e19b5ffa1c/FLAGc1b10cc2a [2021-11-09 10:37:34,464 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:37:34,465 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-09 10:37:34,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/data/72fca2095/706a03f84ce6413e874430e19b5ffa1c/FLAGc1b10cc2a [2021-11-09 10:37:34,906 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/data/72fca2095/706a03f84ce6413e874430e19b5ffa1c [2021-11-09 10:37:34,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:37:34,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:37:34,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:37:34,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:37:34,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:37:34,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:37:34" (1/1) ... [2021-11-09 10:37:34,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d6788ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:34, skipping insertion in model container [2021-11-09 10:37:34,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:37:34" (1/1) ... [2021-11-09 10:37:34,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:37:35,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:37:38,297 WARN L228 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_54e86456-41de-4bd8-b141-db085128823c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-09 10:37:38,309 WARN L228 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_54e86456-41de-4bd8-b141-db085128823c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-09 10:37:38,310 WARN L228 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_54e86456-41de-4bd8-b141-db085128823c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-09 10:37:38,318 WARN L228 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_54e86456-41de-4bd8-b141-db085128823c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-09 10:37:38,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:37:38,448 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:37:38,851 WARN L228 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_54e86456-41de-4bd8-b141-db085128823c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2021-11-09 10:37:38,853 WARN L228 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_54e86456-41de-4bd8-b141-db085128823c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2021-11-09 10:37:38,853 WARN L228 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_54e86456-41de-4bd8-b141-db085128823c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2021-11-09 10:37:38,854 WARN L228 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_54e86456-41de-4bd8-b141-db085128823c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2021-11-09 10:37:38,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:37:39,113 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:37:39,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39 WrapperNode [2021-11-09 10:37:39,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:37:39,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:37:39,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:37:39,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:37:39,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39" (1/1) ... [2021-11-09 10:37:39,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39" (1/1) ... [2021-11-09 10:37:40,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:37:40,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:37:40,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:37:40,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:37:40,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39" (1/1) ... [2021-11-09 10:37:40,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39" (1/1) ... [2021-11-09 10:37:40,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39" (1/1) ... [2021-11-09 10:37:40,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39" (1/1) ... [2021-11-09 10:37:40,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39" (1/1) ... [2021-11-09 10:37:40,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39" (1/1) ... [2021-11-09 10:37:41,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39" (1/1) ... [2021-11-09 10:37:41,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:37:41,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:37:41,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:37:41,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:37:41,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39" (1/1) ... [2021-11-09 10:37:41,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:37:41,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:37:41,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:37:41,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54e86456-41de-4bd8-b141-db085128823c/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:37:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 10:37:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-09 10:37:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-09 10:37:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 10:37:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 10:37:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 10:37:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:37:41,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:37:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-09 10:37:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 10:37:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:37:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 10:37:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 10:37:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 10:37:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-09 10:37:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:37:59,837 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-09 10:37:59,837 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-09 10:37:59,838 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-09 10:37:59,838 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-09 10:37:59,839 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-09 10:37:59,839 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-09 10:37:59,886 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:37:59,887 INFO L299 CfgBuilder]: Removed 5020 assume(true) statements. [2021-11-09 10:37:59,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:37:59 BoogieIcfgContainer [2021-11-09 10:37:59,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:37:59,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:37:59,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:37:59,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:37:59,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:37:34" (1/3) ... [2021-11-09 10:37:59,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69987fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:37:59, skipping insertion in model container [2021-11-09 10:37:59,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:37:39" (2/3) ... [2021-11-09 10:37:59,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69987fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:37:59, skipping insertion in model container [2021-11-09 10:37:59,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:37:59" (3/3) ... [2021-11-09 10:37:59,902 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2021-11-09 10:37:59,908 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:37:59,908 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-11-09 10:37:59,976 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:37:59,982 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 [2021-11-09 10:37:59,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2021-11-09 10:38:00,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 4190 states, 4146 states have (on average 1.307284129281235) internal successors, (5420), 4189 states have internal predecessors, (5420), 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) [2021-11-09 10:38:00,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-09 10:38:00,073 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:00,074 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] [2021-11-09 10:38:00,074 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:00,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:00,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1114883933, now seen corresponding path program 1 times [2021-11-09 10:38:00,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:00,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742699522] [2021-11-09 10:38:00,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:00,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:00,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:00,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742699522] [2021-11-09 10:38:00,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742699522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:00,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:00,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:00,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141831935] [2021-11-09 10:38:00,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:00,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:00,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:00,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:00,788 INFO L87 Difference]: Start difference. First operand has 4190 states, 4146 states have (on average 1.307284129281235) internal successors, (5420), 4189 states have internal predecessors, (5420), 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 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-09 10:38:01,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:01,660 INFO L93 Difference]: Finished difference Result 12072 states and 15622 transitions. [2021-11-09 10:38:01,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:01,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-09 10:38:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:01,740 INFO L225 Difference]: With dead ends: 12072 [2021-11-09 10:38:01,740 INFO L226 Difference]: Without dead ends: 7724 [2021-11-09 10:38:01,759 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 [2021-11-09 10:38:01,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7724 states. [2021-11-09 10:38:02,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7724 to 7708. [2021-11-09 10:38:02,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7708 states, 7664 states have (on average 1.2519572025052192) internal successors, (9595), 7707 states have internal predecessors, (9595), 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) [2021-11-09 10:38:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7708 states to 7708 states and 9595 transitions. [2021-11-09 10:38:02,158 INFO L78 Accepts]: Start accepts. Automaton has 7708 states and 9595 transitions. Word has length 42 [2021-11-09 10:38:02,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:02,159 INFO L470 AbstractCegarLoop]: Abstraction has 7708 states and 9595 transitions. [2021-11-09 10:38:02,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-09 10:38:02,160 INFO L276 IsEmpty]: Start isEmpty. Operand 7708 states and 9595 transitions. [2021-11-09 10:38:02,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-09 10:38:02,168 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:02,168 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] [2021-11-09 10:38:02,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 10:38:02,169 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:02,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:02,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1435015324, now seen corresponding path program 1 times [2021-11-09 10:38:02,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:02,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602360808] [2021-11-09 10:38:02,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:02,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:02,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:02,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:02,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602360808] [2021-11-09 10:38:02,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602360808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:02,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:02,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:02,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814651346] [2021-11-09 10:38:02,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:02,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:02,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:02,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:02,432 INFO L87 Difference]: Start difference. First operand 7708 states and 9595 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-09 10:38:03,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:03,527 INFO L93 Difference]: Finished difference Result 21388 states and 26599 transitions. [2021-11-09 10:38:03,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:03,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 42 [2021-11-09 10:38:03,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:03,626 INFO L225 Difference]: With dead ends: 21388 [2021-11-09 10:38:03,626 INFO L226 Difference]: Without dead ends: 13748 [2021-11-09 10:38:03,645 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 [2021-11-09 10:38:03,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13748 states. [2021-11-09 10:38:04,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13748 to 11656. [2021-11-09 10:38:04,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11656 states, 11612 states have (on average 1.2506889424733034) internal successors, (14523), 11655 states have internal predecessors, (14523), 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) [2021-11-09 10:38:04,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 14523 transitions. [2021-11-09 10:38:04,398 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 14523 transitions. Word has length 42 [2021-11-09 10:38:04,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:04,400 INFO L470 AbstractCegarLoop]: Abstraction has 11656 states and 14523 transitions. [2021-11-09 10:38:04,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2021-11-09 10:38:04,403 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 14523 transitions. [2021-11-09 10:38:04,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-09 10:38:04,409 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:04,410 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] [2021-11-09 10:38:04,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 10:38:04,418 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:04,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:04,419 INFO L85 PathProgramCache]: Analyzing trace with hash -234934328, now seen corresponding path program 1 times [2021-11-09 10:38:04,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:04,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965668226] [2021-11-09 10:38:04,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:04,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:04,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:04,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:04,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965668226] [2021-11-09 10:38:04,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965668226] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:04,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:04,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:04,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031478176] [2021-11-09 10:38:04,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:04,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:04,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:04,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:04,698 INFO L87 Difference]: Start difference. First operand 11656 states and 14523 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-09 10:38:06,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:06,912 INFO L93 Difference]: Finished difference Result 21927 states and 27451 transitions. [2021-11-09 10:38:06,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:06,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2021-11-09 10:38:06,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:07,000 INFO L225 Difference]: With dead ends: 21927 [2021-11-09 10:38:07,000 INFO L226 Difference]: Without dead ends: 10339 [2021-11-09 10:38:07,022 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 [2021-11-09 10:38:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10339 states. [2021-11-09 10:38:07,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10339 to 10257. [2021-11-09 10:38:07,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10257 states, 10213 states have (on average 1.2596690492509546) internal successors, (12865), 10256 states have internal predecessors, (12865), 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) [2021-11-09 10:38:07,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10257 states to 10257 states and 12865 transitions. [2021-11-09 10:38:07,848 INFO L78 Accepts]: Start accepts. Automaton has 10257 states and 12865 transitions. Word has length 57 [2021-11-09 10:38:07,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:07,849 INFO L470 AbstractCegarLoop]: Abstraction has 10257 states and 12865 transitions. [2021-11-09 10:38:07,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-11-09 10:38:07,849 INFO L276 IsEmpty]: Start isEmpty. Operand 10257 states and 12865 transitions. [2021-11-09 10:38:07,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-09 10:38:07,851 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:07,851 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] [2021-11-09 10:38:07,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 10:38:07,851 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:07,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:07,853 INFO L85 PathProgramCache]: Analyzing trace with hash -465593213, now seen corresponding path program 1 times [2021-11-09 10:38:07,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:07,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106455626] [2021-11-09 10:38:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:07,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:08,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:08,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:08,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106455626] [2021-11-09 10:38:08,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106455626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:08,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:08,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:08,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8541897] [2021-11-09 10:38:08,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:08,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:08,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:08,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:08,039 INFO L87 Difference]: Start difference. First operand 10257 states and 12865 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-09 10:38:09,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:09,731 INFO L93 Difference]: Finished difference Result 24003 states and 30042 transitions. [2021-11-09 10:38:09,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:09,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2021-11-09 10:38:09,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:09,781 INFO L225 Difference]: With dead ends: 24003 [2021-11-09 10:38:09,781 INFO L226 Difference]: Without dead ends: 13814 [2021-11-09 10:38:09,805 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 [2021-11-09 10:38:09,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13814 states. [2021-11-09 10:38:10,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13814 to 13369. [2021-11-09 10:38:10,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13325 states have (on average 1.255234521575985) internal successors, (16726), 13368 states have internal predecessors, (16726), 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) [2021-11-09 10:38:10,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 16726 transitions. [2021-11-09 10:38:10,370 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 16726 transitions. Word has length 61 [2021-11-09 10:38:10,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:10,372 INFO L470 AbstractCegarLoop]: Abstraction has 13369 states and 16726 transitions. [2021-11-09 10:38:10,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-09 10:38:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 16726 transitions. [2021-11-09 10:38:10,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-09 10:38:10,376 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:10,377 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] [2021-11-09 10:38:10,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 10:38:10,378 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:10,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:10,378 INFO L85 PathProgramCache]: Analyzing trace with hash 451869666, now seen corresponding path program 1 times [2021-11-09 10:38:10,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:10,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543705107] [2021-11-09 10:38:10,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:10,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:10,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:10,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543705107] [2021-11-09 10:38:10,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543705107] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:10,617 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:10,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:10,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096618905] [2021-11-09 10:38:10,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:10,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:10,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:10,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:10,622 INFO L87 Difference]: Start difference. First operand 13369 states and 16726 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-09 10:38:13,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:13,290 INFO L93 Difference]: Finished difference Result 39403 states and 49397 transitions. [2021-11-09 10:38:13,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:13,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2021-11-09 10:38:13,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:13,362 INFO L225 Difference]: With dead ends: 39403 [2021-11-09 10:38:13,362 INFO L226 Difference]: Without dead ends: 26165 [2021-11-09 10:38:13,389 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 [2021-11-09 10:38:13,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26165 states. [2021-11-09 10:38:14,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26165 to 26149. [2021-11-09 10:38:14,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26149 states, 26105 states have (on average 1.255468301091745) internal successors, (32774), 26148 states have internal predecessors, (32774), 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) [2021-11-09 10:38:14,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26149 states to 26149 states and 32774 transitions. [2021-11-09 10:38:14,258 INFO L78 Accepts]: Start accepts. Automaton has 26149 states and 32774 transitions. Word has length 71 [2021-11-09 10:38:14,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:14,259 INFO L470 AbstractCegarLoop]: Abstraction has 26149 states and 32774 transitions. [2021-11-09 10:38:14,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-09 10:38:14,262 INFO L276 IsEmpty]: Start isEmpty. Operand 26149 states and 32774 transitions. [2021-11-09 10:38:14,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-09 10:38:14,264 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:14,264 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] [2021-11-09 10:38:14,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 10:38:14,265 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:14,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:14,265 INFO L85 PathProgramCache]: Analyzing trace with hash -827994012, now seen corresponding path program 1 times [2021-11-09 10:38:14,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:14,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528236640] [2021-11-09 10:38:14,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:14,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:14,422 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:38:14,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:14,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528236640] [2021-11-09 10:38:14,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528236640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:14,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:14,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:14,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668018633] [2021-11-09 10:38:14,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 10:38:14,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:14,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:38:14,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:38:14,432 INFO L87 Difference]: Start difference. First operand 26149 states and 32774 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-09 10:38:16,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:16,190 INFO L93 Difference]: Finished difference Result 64971 states and 81509 transitions. [2021-11-09 10:38:16,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:38:16,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2021-11-09 10:38:16,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:16,539 INFO L225 Difference]: With dead ends: 64971 [2021-11-09 10:38:16,539 INFO L226 Difference]: Without dead ends: 38953 [2021-11-09 10:38:16,606 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 [2021-11-09 10:38:16,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38953 states. [2021-11-09 10:38:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38953 to 38888. [2021-11-09 10:38:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38888 states, 38844 states have (on average 1.2558181443723613) internal successors, (48781), 38887 states have internal predecessors, (48781), 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) [2021-11-09 10:38:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38888 states to 38888 states and 48781 transitions. [2021-11-09 10:38:18,142 INFO L78 Accepts]: Start accepts. Automaton has 38888 states and 48781 transitions. Word has length 71 [2021-11-09 10:38:18,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:18,144 INFO L470 AbstractCegarLoop]: Abstraction has 38888 states and 48781 transitions. [2021-11-09 10:38:18,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-09 10:38:18,144 INFO L276 IsEmpty]: Start isEmpty. Operand 38888 states and 48781 transitions. [2021-11-09 10:38:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-09 10:38:18,146 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:18,146 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 10:38:18,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 10:38:18,147 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:18,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:18,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1803764864, now seen corresponding path program 1 times [2021-11-09 10:38:18,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:18,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084356134] [2021-11-09 10:38:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:18,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 10:38:18,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:18,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084356134] [2021-11-09 10:38:18,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084356134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:18,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:18,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:18,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501181969] [2021-11-09 10:38:18,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:18,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:18,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:18,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:18,587 INFO L87 Difference]: Start difference. First operand 38888 states and 48781 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-09 10:38:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:19,880 INFO L93 Difference]: Finished difference Result 38888 states and 48781 transitions. [2021-11-09 10:38:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:19,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 72 [2021-11-09 10:38:19,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:19,974 INFO L225 Difference]: With dead ends: 38888 [2021-11-09 10:38:19,974 INFO L226 Difference]: Without dead ends: 38882 [2021-11-09 10:38:19,988 INFO L786 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 [2021-11-09 10:38:20,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38882 states. [2021-11-09 10:38:21,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38882 to 38882. [2021-11-09 10:38:21,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38882 states, 38841 states have (on average 1.2557606652763833) internal successors, (48775), 38881 states have internal predecessors, (48775), 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) [2021-11-09 10:38:21,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38882 states to 38882 states and 48775 transitions. [2021-11-09 10:38:21,547 INFO L78 Accepts]: Start accepts. Automaton has 38882 states and 48775 transitions. Word has length 72 [2021-11-09 10:38:21,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:21,548 INFO L470 AbstractCegarLoop]: Abstraction has 38882 states and 48775 transitions. [2021-11-09 10:38:21,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-09 10:38:21,548 INFO L276 IsEmpty]: Start isEmpty. Operand 38882 states and 48775 transitions. [2021-11-09 10:38:21,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-09 10:38:21,550 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:21,550 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 10:38:21,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 10:38:21,551 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:21,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:21,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1748607325, now seen corresponding path program 1 times [2021-11-09 10:38:21,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:21,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256122650] [2021-11-09 10:38:21,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:21,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:21,808 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 10:38:21,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:21,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256122650] [2021-11-09 10:38:21,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256122650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:21,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:21,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:21,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707008281] [2021-11-09 10:38:21,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:21,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:21,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:21,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:21,812 INFO L87 Difference]: Start difference. First operand 38882 states and 48775 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-11-09 10:38:23,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:23,466 INFO L93 Difference]: Finished difference Result 38882 states and 48775 transitions. [2021-11-09 10:38:23,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:23,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 74 [2021-11-09 10:38:23,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:23,565 INFO L225 Difference]: With dead ends: 38882 [2021-11-09 10:38:23,565 INFO L226 Difference]: Without dead ends: 38876 [2021-11-09 10:38:23,577 INFO L786 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 [2021-11-09 10:38:23,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38876 states. [2021-11-09 10:38:24,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38876 to 38876. [2021-11-09 10:38:24,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38876 states, 38838 states have (on average 1.255703177300582) internal successors, (48769), 38875 states have internal predecessors, (48769), 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) [2021-11-09 10:38:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38876 states to 38876 states and 48769 transitions. [2021-11-09 10:38:24,899 INFO L78 Accepts]: Start accepts. Automaton has 38876 states and 48769 transitions. Word has length 74 [2021-11-09 10:38:24,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:24,899 INFO L470 AbstractCegarLoop]: Abstraction has 38876 states and 48769 transitions. [2021-11-09 10:38:24,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-11-09 10:38:24,900 INFO L276 IsEmpty]: Start isEmpty. Operand 38876 states and 48769 transitions. [2021-11-09 10:38:24,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-09 10:38:24,902 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:24,902 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 10:38:24,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 10:38:24,903 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:24,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:24,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1079280314, now seen corresponding path program 1 times [2021-11-09 10:38:24,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:24,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170703439] [2021-11-09 10:38:24,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:24,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:25,374 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 10:38:25,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:25,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170703439] [2021-11-09 10:38:25,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170703439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:25,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:25,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:25,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759983990] [2021-11-09 10:38:25,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:25,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:25,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:25,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:25,378 INFO L87 Difference]: Start difference. First operand 38876 states and 48769 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-09 10:38:26,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:26,922 INFO L93 Difference]: Finished difference Result 38876 states and 48769 transitions. [2021-11-09 10:38:26,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:26,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 76 [2021-11-09 10:38:26,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:27,006 INFO L225 Difference]: With dead ends: 38876 [2021-11-09 10:38:27,006 INFO L226 Difference]: Without dead ends: 38870 [2021-11-09 10:38:27,015 INFO L786 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 [2021-11-09 10:38:27,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38870 states. [2021-11-09 10:38:28,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38870 to 38870. [2021-11-09 10:38:28,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38870 states, 38835 states have (on average 1.2556456804428995) internal successors, (48763), 38869 states have internal predecessors, (48763), 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) [2021-11-09 10:38:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38870 states to 38870 states and 48763 transitions. [2021-11-09 10:38:28,390 INFO L78 Accepts]: Start accepts. Automaton has 38870 states and 48763 transitions. Word has length 76 [2021-11-09 10:38:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:28,390 INFO L470 AbstractCegarLoop]: Abstraction has 38870 states and 48763 transitions. [2021-11-09 10:38:28,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-09 10:38:28,391 INFO L276 IsEmpty]: Start isEmpty. Operand 38870 states and 48763 transitions. [2021-11-09 10:38:28,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-09 10:38:28,393 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:28,393 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 10:38:28,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 10:38:28,394 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:28,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:28,394 INFO L85 PathProgramCache]: Analyzing trace with hash -2101116823, now seen corresponding path program 1 times [2021-11-09 10:38:28,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:28,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974494528] [2021-11-09 10:38:28,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:28,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:28,614 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 10:38:28,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:28,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974494528] [2021-11-09 10:38:28,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974494528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:28,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:28,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:28,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171761473] [2021-11-09 10:38:28,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:28,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:28,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:28,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:28,617 INFO L87 Difference]: Start difference. First operand 38870 states and 48763 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-09 10:38:30,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:30,486 INFO L93 Difference]: Finished difference Result 38870 states and 48763 transitions. [2021-11-09 10:38:30,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:30,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 78 [2021-11-09 10:38:30,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:30,559 INFO L225 Difference]: With dead ends: 38870 [2021-11-09 10:38:30,559 INFO L226 Difference]: Without dead ends: 38864 [2021-11-09 10:38:30,569 INFO L786 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 [2021-11-09 10:38:30,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38864 states. [2021-11-09 10:38:31,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38864 to 38864. [2021-11-09 10:38:31,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38864 states, 38832 states have (on average 1.2555881747012774) internal successors, (48757), 38863 states have internal predecessors, (48757), 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) [2021-11-09 10:38:32,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38864 states to 38864 states and 48757 transitions. [2021-11-09 10:38:32,066 INFO L78 Accepts]: Start accepts. Automaton has 38864 states and 48757 transitions. Word has length 78 [2021-11-09 10:38:32,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:32,066 INFO L470 AbstractCegarLoop]: Abstraction has 38864 states and 48757 transitions. [2021-11-09 10:38:32,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-09 10:38:32,066 INFO L276 IsEmpty]: Start isEmpty. Operand 38864 states and 48757 transitions. [2021-11-09 10:38:32,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-09 10:38:32,068 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:32,069 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 10:38:32,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-09 10:38:32,069 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:32,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:32,070 INFO L85 PathProgramCache]: Analyzing trace with hash -538490868, now seen corresponding path program 1 times [2021-11-09 10:38:32,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:32,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282274737] [2021-11-09 10:38:32,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:32,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:32,288 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 10:38:32,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:32,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282274737] [2021-11-09 10:38:32,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282274737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:32,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:32,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:32,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006731569] [2021-11-09 10:38:32,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:32,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:32,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:32,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:32,292 INFO L87 Difference]: Start difference. First operand 38864 states and 48757 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-09 10:38:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:33,797 INFO L93 Difference]: Finished difference Result 38864 states and 48757 transitions. [2021-11-09 10:38:33,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:33,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 80 [2021-11-09 10:38:33,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:33,864 INFO L225 Difference]: With dead ends: 38864 [2021-11-09 10:38:33,865 INFO L226 Difference]: Without dead ends: 38858 [2021-11-09 10:38:33,877 INFO L786 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 [2021-11-09 10:38:33,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38858 states. [2021-11-09 10:38:35,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38858 to 38858. [2021-11-09 10:38:35,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38858 states, 38829 states have (on average 1.2555306600736562) internal successors, (48751), 38857 states have internal predecessors, (48751), 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) [2021-11-09 10:38:35,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38858 states to 38858 states and 48751 transitions. [2021-11-09 10:38:35,466 INFO L78 Accepts]: Start accepts. Automaton has 38858 states and 48751 transitions. Word has length 80 [2021-11-09 10:38:35,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:35,466 INFO L470 AbstractCegarLoop]: Abstraction has 38858 states and 48751 transitions. [2021-11-09 10:38:35,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-09 10:38:35,467 INFO L276 IsEmpty]: Start isEmpty. Operand 38858 states and 48751 transitions. [2021-11-09 10:38:35,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-09 10:38:35,469 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:35,470 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 10:38:35,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 10:38:35,470 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:35,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:35,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2093501393, now seen corresponding path program 1 times [2021-11-09 10:38:35,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:35,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343221293] [2021-11-09 10:38:35,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:35,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:35,708 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 10:38:35,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:35,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343221293] [2021-11-09 10:38:35,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343221293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:35,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:35,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:35,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908728909] [2021-11-09 10:38:35,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:35,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:35,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:35,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:35,715 INFO L87 Difference]: Start difference. First operand 38858 states and 48751 transitions. Second operand has 4 states, 4 states have (on average 18.25) 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) [2021-11-09 10:38:37,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:37,757 INFO L93 Difference]: Finished difference Result 38858 states and 48751 transitions. [2021-11-09 10:38:37,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:37,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) 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 82 [2021-11-09 10:38:37,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:37,822 INFO L225 Difference]: With dead ends: 38858 [2021-11-09 10:38:37,822 INFO L226 Difference]: Without dead ends: 38852 [2021-11-09 10:38:37,834 INFO L786 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 [2021-11-09 10:38:37,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38852 states. [2021-11-09 10:38:39,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38852 to 38852. [2021-11-09 10:38:39,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38852 states, 38826 states have (on average 1.2554731365579765) internal successors, (48745), 38851 states have internal predecessors, (48745), 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) [2021-11-09 10:38:39,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38852 states to 38852 states and 48745 transitions. [2021-11-09 10:38:39,536 INFO L78 Accepts]: Start accepts. Automaton has 38852 states and 48745 transitions. Word has length 82 [2021-11-09 10:38:39,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:39,537 INFO L470 AbstractCegarLoop]: Abstraction has 38852 states and 48745 transitions. [2021-11-09 10:38:39,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) 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) [2021-11-09 10:38:39,537 INFO L276 IsEmpty]: Start isEmpty. Operand 38852 states and 48745 transitions. [2021-11-09 10:38:39,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 10:38:39,540 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:39,541 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 10:38:39,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-09 10:38:39,541 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:39,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:39,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1809996590, now seen corresponding path program 1 times [2021-11-09 10:38:39,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:39,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303562480] [2021-11-09 10:38:39,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:39,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:39,757 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 10:38:39,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:39,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303562480] [2021-11-09 10:38:39,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303562480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:39,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:39,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:39,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738871271] [2021-11-09 10:38:39,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:39,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:39,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:39,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:39,761 INFO L87 Difference]: Start difference. First operand 38852 states and 48745 transitions. Second operand has 4 states, 4 states have (on average 18.75) 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) [2021-11-09 10:38:41,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:41,593 INFO L93 Difference]: Finished difference Result 38852 states and 48745 transitions. [2021-11-09 10:38:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:41,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) 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 84 [2021-11-09 10:38:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:41,656 INFO L225 Difference]: With dead ends: 38852 [2021-11-09 10:38:41,656 INFO L226 Difference]: Without dead ends: 38846 [2021-11-09 10:38:41,665 INFO L786 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 [2021-11-09 10:38:41,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38846 states. [2021-11-09 10:38:43,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38846 to 38846. [2021-11-09 10:38:43,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38846 states, 38823 states have (on average 1.2554156041521778) internal successors, (48739), 38845 states have internal predecessors, (48739), 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) [2021-11-09 10:38:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38846 states to 38846 states and 48739 transitions. [2021-11-09 10:38:43,331 INFO L78 Accepts]: Start accepts. Automaton has 38846 states and 48739 transitions. Word has length 84 [2021-11-09 10:38:43,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:43,332 INFO L470 AbstractCegarLoop]: Abstraction has 38846 states and 48739 transitions. [2021-11-09 10:38:43,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) 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) [2021-11-09 10:38:43,332 INFO L276 IsEmpty]: Start isEmpty. Operand 38846 states and 48739 transitions. [2021-11-09 10:38:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-09 10:38:43,335 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:43,335 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 10:38:43,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-09 10:38:43,336 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:43,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:43,336 INFO L85 PathProgramCache]: Analyzing trace with hash 55179765, now seen corresponding path program 1 times [2021-11-09 10:38:43,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:43,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057233800] [2021-11-09 10:38:43,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:43,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:43,528 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 10:38:43,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:43,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057233800] [2021-11-09 10:38:43,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057233800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:43,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:43,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:43,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501269710] [2021-11-09 10:38:43,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:43,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:43,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:43,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:43,531 INFO L87 Difference]: Start difference. First operand 38846 states and 48739 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:45,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:45,146 INFO L93 Difference]: Finished difference Result 38846 states and 48739 transitions. [2021-11-09 10:38:45,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:45,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-09 10:38:45,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:45,193 INFO L225 Difference]: With dead ends: 38846 [2021-11-09 10:38:45,194 INFO L226 Difference]: Without dead ends: 38840 [2021-11-09 10:38:45,203 INFO L786 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 [2021-11-09 10:38:45,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38840 states. [2021-11-09 10:38:46,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38840 to 38840. [2021-11-09 10:38:46,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38840 states, 38820 states have (on average 1.255358062854199) internal successors, (48733), 38839 states have internal predecessors, (48733), 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) [2021-11-09 10:38:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38840 states to 38840 states and 48733 transitions. [2021-11-09 10:38:46,881 INFO L78 Accepts]: Start accepts. Automaton has 38840 states and 48733 transitions. Word has length 86 [2021-11-09 10:38:46,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:38:46,882 INFO L470 AbstractCegarLoop]: Abstraction has 38840 states and 48733 transitions. [2021-11-09 10:38:46,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:38:46,882 INFO L276 IsEmpty]: Start isEmpty. Operand 38840 states and 48733 transitions. [2021-11-09 10:38:46,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-09 10:38:46,885 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:38:46,885 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 10:38:46,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 10:38:46,885 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-09 10:38:46,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:38:46,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1488294808, now seen corresponding path program 1 times [2021-11-09 10:38:46,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:38:46,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009885306] [2021-11-09 10:38:46,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:38:46,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:38:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:38:47,061 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 10:38:47,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:38:47,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009885306] [2021-11-09 10:38:47,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009885306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:38:47,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:38:47,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:38:47,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562188475] [2021-11-09 10:38:47,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:38:47,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:38:47,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:38:47,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:38:47,064 INFO L87 Difference]: Start difference. First operand 38840 states and 48733 transitions. Second operand has 4 states, 4 states have (on average 19.75) 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) [2021-11-09 10:38:49,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:38:49,058 INFO L93 Difference]: Finished difference Result 38840 states and 48733 transitions. [2021-11-09 10:38:49,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:38:49,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) 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 88 [2021-11-09 10:38:49,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:38:49,111 INFO L225 Difference]: With dead ends: 38840 [2021-11-09 10:38:49,111 INFO L226 Difference]: Without dead ends: 38834 [2021-11-09 10:38:49,121 INFO L786 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 [2021-11-09 10:38:49,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38834 states.