./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rt2x00-rt2500usb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rt2x00-rt2500usb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0 --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 75d6ecf4631f26c7ec13db22e2a2052220f525ba1ac7420b6414b057d6abb772 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:09:52,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:09:52,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:09:53,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:09:53,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:09:53,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:09:53,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:09:53,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:09:53,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:09:53,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:09:53,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:09:53,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:09:53,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:09:53,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:09:53,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:09:53,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:09:53,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:09:53,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:09:53,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:09:53,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:09:53,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:09:53,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:09:53,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:09:53,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:09:53,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:09:53,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:09:53,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:09:53,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:09:53,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:09:53,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:09:53,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:09:53,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:09:53,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:09:53,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:09:53,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:09:53,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:09:53,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:09:53,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:09:53,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:09:53,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:09:53,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:09:53,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:09:53,174 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:09:53,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:09:53,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:09:53,175 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:09:53,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:09:53,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:09:53,177 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:09:53,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:09:53,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:09:53,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:09:53,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:09:53,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:09:53,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:09:53,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:09:53,186 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:09:53,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:09:53,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:09:53,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:09:53,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:09:53,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:09:53,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:09:53,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:09:53,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:09:53,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:09:53,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:09:53,189 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:09:53,189 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:09:53,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:09:53,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:09:53,193 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_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75d6ecf4631f26c7ec13db22e2a2052220f525ba1ac7420b6414b057d6abb772 [2021-11-22 15:09:53,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:09:53,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:09:53,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:09:53,520 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:09:53,521 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:09:53,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rt2x00-rt2500usb.cil.i [2021-11-22 15:09:53,600 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/data/c50fc978e/b214c826b53d4b7ea21e05ab20f16b67/FLAG71088997d [2021-11-22 15:09:54,910 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:09:54,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rt2x00-rt2500usb.cil.i [2021-11-22 15:09:54,997 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/data/c50fc978e/b214c826b53d4b7ea21e05ab20f16b67/FLAG71088997d [2021-11-22 15:09:55,496 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/data/c50fc978e/b214c826b53d4b7ea21e05ab20f16b67 [2021-11-22 15:09:55,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:09:55,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:09:55,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:09:55,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:09:55,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:09:55,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:09:55" (1/1) ... [2021-11-22 15:09:55,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1946e0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:09:55, skipping insertion in model container [2021-11-22 15:09:55,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:09:55" (1/1) ... [2021-11-22 15:09:55,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:09:55,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:10:02,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rt2x00-rt2500usb.cil.i[615371,615384] [2021-11-22 15:10:02,298 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rt2x00-rt2500usb.cil.i[615516,615529] [2021-11-22 15:10:02,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:10:02,437 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:10:03,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rt2x00-rt2500usb.cil.i[615371,615384] [2021-11-22 15:10:03,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rt2x00-rt2500usb.cil.i[615516,615529] [2021-11-22 15:10:03,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:10:03,634 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:10:03,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03 WrapperNode [2021-11-22 15:10:03,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:10:03,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:10:03,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:10:03,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:10:03,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03" (1/1) ... [2021-11-22 15:10:03,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03" (1/1) ... [2021-11-22 15:10:06,495 INFO L137 Inliner]: procedures = 614, calls = 7019, calls flagged for inlining = 1488, calls inlined = 5105, statements flattened = 74707 [2021-11-22 15:10:06,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:10:06,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:10:06,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:10:06,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:10:06,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03" (1/1) ... [2021-11-22 15:10:06,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03" (1/1) ... [2021-11-22 15:10:07,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03" (1/1) ... [2021-11-22 15:10:07,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03" (1/1) ... [2021-11-22 15:10:08,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03" (1/1) ... [2021-11-22 15:10:09,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03" (1/1) ... [2021-11-22 15:10:09,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03" (1/1) ... [2021-11-22 15:10:09,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:10:09,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:10:09,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:10:09,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:10:09,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03" (1/1) ... [2021-11-22 15:10:09,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:10:09,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:10:09,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:10:09,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39f4a9e5-1a06-4535-a68f-97b7e06eb1cb/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:10:10,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:10:10,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 15:10:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-22 15:10:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-22 15:10:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 15:10:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:10:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:10:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_set_device_state [2021-11-22 15:10:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_set_device_state [2021-11-22 15:10:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:10:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:10:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:10:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:10:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 15:10:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 15:10:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:10:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:10:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:10:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_init_registers [2021-11-22 15:10:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_init_registers [2021-11-22 15:10:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:10:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure rt2500usb_enable_radio [2021-11-22 15:10:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure rt2500usb_enable_radio [2021-11-22 15:10:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:10:11,536 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:10:11,538 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:11:45,293 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-22 15:11:45,294 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res#1 := 0; [2021-11-22 15:11:45,294 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res#1 := 0; [2021-11-22 15:11:45,294 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res#1 := 0; [2021-11-22 15:11:45,295 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res#1 := 0; [2021-11-22 15:11:45,295 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-22 15:11:45,295 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-22 15:11:45,300 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-22 15:11:45,303 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:11:45,401 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:11:45,401 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:11:45,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:11:45 BoogieIcfgContainer [2021-11-22 15:11:45,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:11:45,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:11:45,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:11:45,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:11:45,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:09:55" (1/3) ... [2021-11-22 15:11:45,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10bbc1af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:11:45, skipping insertion in model container [2021-11-22 15:11:45,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:03" (2/3) ... [2021-11-22 15:11:45,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10bbc1af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:11:45, skipping insertion in model container [2021-11-22 15:11:45,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:11:45" (3/3) ... [2021-11-22 15:11:45,432 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rt2x00-rt2500usb.cil.i [2021-11-22 15:11:45,444 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:11:45,445 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-22 15:11:45,556 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:11:45,568 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 [2021-11-22 15:11:45,568 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-22 15:11:45,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 12663 states, 12641 states have (on average 1.326081797326161) internal successors, (16763), 12650 states have internal predecessors, (16763), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-22 15:11:45,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-11-22 15:11:45,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:11:45,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:11:45,901 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 15:11:45,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:45,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1695820199, now seen corresponding path program 1 times [2021-11-22 15:11:45,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:45,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806752870] [2021-11-22 15:11:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:45,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:11:47,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:11:47,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:11:47,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806752870] [2021-11-22 15:11:47,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806752870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:11:47,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:11:47,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:11:47,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203769153] [2021-11-22 15:11:47,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:11:47,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:11:47,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:11:47,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:11:47,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:11:47,436 INFO L87 Difference]: Start difference. First operand has 12663 states, 12641 states have (on average 1.326081797326161) internal successors, (16763), 12650 states have internal predecessors, (16763), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) [2021-11-22 15:11:48,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:11:48,971 INFO L93 Difference]: Finished difference Result 35601 states and 47190 transitions. [2021-11-22 15:11:48,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:11:48,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 308 [2021-11-22 15:11:48,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:11:49,143 INFO L225 Difference]: With dead ends: 35601 [2021-11-22 15:11:49,143 INFO L226 Difference]: Without dead ends: 23120 [2021-11-22 15:11:49,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:11:49,185 INFO L933 BasicCegarLoop]: 16722 mSDtfsCounter, 14370 mSDsluCounter, 16684 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14370 SdHoareTripleChecker+Valid, 33406 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:11:49,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14370 Valid, 33406 Invalid, 64 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:11:49,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23120 states. [2021-11-22 15:11:50,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23120 to 23098. [2021-11-22 15:11:50,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23098 states, 23064 states have (on average 1.314689559486646) internal successors, (30322), 23073 states have internal predecessors, (30322), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-22 15:11:50,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23098 states to 23098 states and 30354 transitions. [2021-11-22 15:11:50,527 INFO L78 Accepts]: Start accepts. Automaton has 23098 states and 30354 transitions. Word has length 308 [2021-11-22 15:11:50,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:11:50,535 INFO L470 AbstractCegarLoop]: Abstraction has 23098 states and 30354 transitions. [2021-11-22 15:11:50,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) [2021-11-22 15:11:50,538 INFO L276 IsEmpty]: Start isEmpty. Operand 23098 states and 30354 transitions. [2021-11-22 15:11:50,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-22 15:11:50,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:11:50,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:11:50,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:11:50,608 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 15:11:50,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash -717421572, now seen corresponding path program 1 times [2021-11-22 15:11:50,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:50,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567755894] [2021-11-22 15:11:50,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:50,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:11:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:11:51,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:11:51,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567755894] [2021-11-22 15:11:51,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567755894] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:11:51,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:11:51,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:11:51,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666107059] [2021-11-22 15:11:51,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:11:51,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:11:51,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:11:51,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:11:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:11:51,332 INFO L87 Difference]: Start difference. First operand 23098 states and 30354 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-11-22 15:11:53,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:11:53,099 INFO L93 Difference]: Finished difference Result 59626 states and 78476 transitions. [2021-11-22 15:11:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:11:53,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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 310 [2021-11-22 15:11:53,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:11:53,257 INFO L225 Difference]: With dead ends: 59626 [2021-11-22 15:11:53,257 INFO L226 Difference]: Without dead ends: 37029 [2021-11-22 15:11:53,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:11:53,308 INFO L933 BasicCegarLoop]: 18344 mSDtfsCounter, 9895 mSDsluCounter, 16040 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9895 SdHoareTripleChecker+Valid, 34384 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-22 15:11:53,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9895 Valid, 34384 Invalid, 200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-22 15:11:53,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37029 states. [2021-11-22 15:11:54,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37029 to 37005. [2021-11-22 15:11:54,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37005 states, 36951 states have (on average 1.3148493951449216) internal successors, (48585), 36960 states have internal predecessors, (48585), 28 states have call successors, (28), 16 states have call predecessors, (28), 16 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-22 15:11:54,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37005 states to 37005 states and 48641 transitions. [2021-11-22 15:11:54,743 INFO L78 Accepts]: Start accepts. Automaton has 37005 states and 48641 transitions. Word has length 310 [2021-11-22 15:11:54,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:11:54,744 INFO L470 AbstractCegarLoop]: Abstraction has 37005 states and 48641 transitions. [2021-11-22 15:11:54,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2021-11-22 15:11:54,745 INFO L276 IsEmpty]: Start isEmpty. Operand 37005 states and 48641 transitions. [2021-11-22 15:11:54,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-11-22 15:11:54,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:11:54,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:11:54,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:11:54,823 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 15:11:54,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:11:54,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1486466858, now seen corresponding path program 1 times [2021-11-22 15:11:54,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:11:54,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033778371] [2021-11-22 15:11:54,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:11:54,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:11:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:11:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:11:55,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:11:55,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033778371] [2021-11-22 15:11:55,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033778371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:11:55,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:11:55,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:11:55,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803948477] [2021-11-22 15:11:55,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:11:55,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:11:55,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:11:55,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:11:55,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:11:55,666 INFO L87 Difference]: Start difference. First operand 37005 states and 48641 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2021-11-22 15:11:57,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:11:57,784 INFO L93 Difference]: Finished difference Result 88883 states and 116967 transitions. [2021-11-22 15:11:57,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:11:57,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 311 [2021-11-22 15:11:57,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:11:57,971 INFO L225 Difference]: With dead ends: 88883 [2021-11-22 15:11:57,972 INFO L226 Difference]: Without dead ends: 52379 [2021-11-22 15:11:58,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:11:58,045 INFO L933 BasicCegarLoop]: 24571 mSDtfsCounter, 9978 mSDsluCounter, 16041 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9978 SdHoareTripleChecker+Valid, 40612 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:11:58,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9978 Valid, 40612 Invalid, 200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 15:11:58,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52379 states. [2021-11-22 15:11:59,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52379 to 52351. [2021-11-22 15:11:59,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52351 states, 52277 states have (on average 1.314822962296995) internal successors, (68735), 52286 states have internal predecessors, (68735), 40 states have call successors, (40), 24 states have call predecessors, (40), 24 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-22 15:12:00,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52351 states to 52351 states and 68815 transitions. [2021-11-22 15:12:00,051 INFO L78 Accepts]: Start accepts. Automaton has 52351 states and 68815 transitions. Word has length 311 [2021-11-22 15:12:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:12:00,051 INFO L470 AbstractCegarLoop]: Abstraction has 52351 states and 68815 transitions. [2021-11-22 15:12:00,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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) [2021-11-22 15:12:00,052 INFO L276 IsEmpty]: Start isEmpty. Operand 52351 states and 68815 transitions. [2021-11-22 15:12:00,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-11-22 15:12:00,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:12:00,124 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:12:00,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:12:00,125 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 15:12:00,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:12:00,126 INFO L85 PathProgramCache]: Analyzing trace with hash -109390114, now seen corresponding path program 1 times [2021-11-22 15:12:00,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:12:00,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054405420] [2021-11-22 15:12:00,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:12:00,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:12:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:12:00,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:12:00,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:12:00,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054405420] [2021-11-22 15:12:00,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054405420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:12:00,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:12:00,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:12:00,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294931647] [2021-11-22 15:12:00,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:12:00,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:12:00,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:12:00,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:12:00,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:12:00,676 INFO L87 Difference]: Start difference. First operand 52351 states and 68815 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2021-11-22 15:12:03,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:12:03,458 INFO L93 Difference]: Finished difference Result 155995 states and 205263 transitions. [2021-11-22 15:12:03,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:12:03,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 324 [2021-11-22 15:12:03,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:12:03,838 INFO L225 Difference]: With dead ends: 155995 [2021-11-22 15:12:03,839 INFO L226 Difference]: Without dead ends: 104145 [2021-11-22 15:12:03,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:12:03,928 INFO L933 BasicCegarLoop]: 17716 mSDtfsCounter, 15628 mSDsluCounter, 16203 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15628 SdHoareTripleChecker+Valid, 33919 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:12:03,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15628 Valid, 33919 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:12:04,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104145 states. [2021-11-22 15:12:06,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104145 to 104093. [2021-11-22 15:12:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104093 states, 103955 states have (on average 1.3158097253619354) internal successors, (136785), 103964 states have internal predecessors, (136785), 80 states have call successors, (80), 48 states have call predecessors, (80), 48 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-22 15:12:07,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104093 states to 104093 states and 136945 transitions. [2021-11-22 15:12:07,149 INFO L78 Accepts]: Start accepts. Automaton has 104093 states and 136945 transitions. Word has length 324 [2021-11-22 15:12:07,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:12:07,153 INFO L470 AbstractCegarLoop]: Abstraction has 104093 states and 136945 transitions. [2021-11-22 15:12:07,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2021-11-22 15:12:07,153 INFO L276 IsEmpty]: Start isEmpty. Operand 104093 states and 136945 transitions. [2021-11-22 15:12:07,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-22 15:12:07,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:12:07,239 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:12:07,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:12:07,239 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 15:12:07,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:12:07,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1588633880, now seen corresponding path program 1 times [2021-11-22 15:12:07,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:12:07,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912623635] [2021-11-22 15:12:07,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:12:07,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:12:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:12:08,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:12:08,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:12:08,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912623635] [2021-11-22 15:12:08,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912623635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:12:08,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:12:08,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:12:08,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633667372] [2021-11-22 15:12:08,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:12:08,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:12:08,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:12:08,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:12:08,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:12:08,152 INFO L87 Difference]: Start difference. First operand 104093 states and 136945 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2021-11-22 15:12:10,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:12:10,700 INFO L93 Difference]: Finished difference Result 207748 states and 273398 transitions. [2021-11-22 15:12:10,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:12:10,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 325 [2021-11-22 15:12:10,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:12:10,987 INFO L225 Difference]: With dead ends: 207748 [2021-11-22 15:12:10,987 INFO L226 Difference]: Without dead ends: 104156 [2021-11-22 15:12:11,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:12:11,137 INFO L933 BasicCegarLoop]: 16209 mSDtfsCounter, 85 mSDsluCounter, 16172 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 32381 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:12:11,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 32381 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:12:11,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104156 states. [2021-11-22 15:12:13,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104156 to 104156. [2021-11-22 15:12:13,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104156 states, 104018 states have (on average 1.3156569055355805) internal successors, (136852), 104027 states have internal predecessors, (136852), 80 states have call successors, (80), 48 states have call predecessors, (80), 48 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-22 15:12:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104156 states to 104156 states and 137012 transitions. [2021-11-22 15:12:13,951 INFO L78 Accepts]: Start accepts. Automaton has 104156 states and 137012 transitions. Word has length 325 [2021-11-22 15:12:13,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:12:13,952 INFO L470 AbstractCegarLoop]: Abstraction has 104156 states and 137012 transitions. [2021-11-22 15:12:13,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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) [2021-11-22 15:12:13,953 INFO L276 IsEmpty]: Start isEmpty. Operand 104156 states and 137012 transitions. [2021-11-22 15:12:14,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-11-22 15:12:14,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:12:14,061 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:12:14,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:12:14,061 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 15:12:14,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:12:14,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1193844458, now seen corresponding path program 1 times [2021-11-22 15:12:14,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:12:14,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880322447] [2021-11-22 15:12:14,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:12:14,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:12:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:12:14,507 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:12:14,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:12:14,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880322447] [2021-11-22 15:12:14,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880322447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:12:14,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:12:14,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:12:14,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677189318] [2021-11-22 15:12:14,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:12:14,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:12:14,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:12:14,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:12:14,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:12:14,511 INFO L87 Difference]: Start difference. First operand 104156 states and 137012 transitions. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2021-11-22 15:12:19,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:12:19,025 INFO L93 Difference]: Finished difference Result 310828 states and 409200 transitions. [2021-11-22 15:12:19,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:12:19,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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 356 [2021-11-22 15:12:19,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:12:19,529 INFO L225 Difference]: With dead ends: 310828 [2021-11-22 15:12:19,529 INFO L226 Difference]: Without dead ends: 207236 [2021-11-22 15:12:19,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:12:19,705 INFO L933 BasicCegarLoop]: 30301 mSDtfsCounter, 15598 mSDsluCounter, 16193 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15598 SdHoareTripleChecker+Valid, 46494 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:12:19,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15598 Valid, 46494 Invalid, 25 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:12:19,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207236 states. [2021-11-22 15:12:24,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207236 to 207216. [2021-11-22 15:12:24,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207216 states, 206950 states have (on average 1.3164532495771926) internal successors, (272440), 206959 states have internal predecessors, (272440), 160 states have call successors, (160), 96 states have call predecessors, (160), 96 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2021-11-22 15:12:24,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207216 states to 207216 states and 272760 transitions. [2021-11-22 15:12:24,751 INFO L78 Accepts]: Start accepts. Automaton has 207216 states and 272760 transitions. Word has length 356 [2021-11-22 15:12:24,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:12:24,751 INFO L470 AbstractCegarLoop]: Abstraction has 207216 states and 272760 transitions. [2021-11-22 15:12:24,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2021-11-22 15:12:24,752 INFO L276 IsEmpty]: Start isEmpty. Operand 207216 states and 272760 transitions. [2021-11-22 15:12:24,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-11-22 15:12:24,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:12:24,902 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:12:24,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 15:12:24,903 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-22 15:12:24,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:12:24,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1611733160, now seen corresponding path program 1 times [2021-11-22 15:12:24,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:12:24,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947344319] [2021-11-22 15:12:24,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:12:24,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:12:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:12:25,892 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:12:25,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:12:25,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947344319] [2021-11-22 15:12:25,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947344319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:12:25,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:12:25,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:12:25,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179595448] [2021-11-22 15:12:25,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:12:25,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:12:25,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:12:25,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:12:25,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:12:25,896 INFO L87 Difference]: Start difference. First operand 207216 states and 272760 transitions. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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)