./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/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 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:26:06,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:26:06,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:26:06,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:26:06,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:26:06,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:26:06,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:26:06,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:26:06,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:26:06,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:26:06,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:26:06,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:26:06,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:26:06,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:26:06,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:26:06,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:26:06,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:26:06,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:26:06,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:26:06,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:26:06,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:26:06,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:26:06,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:26:06,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:26:06,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:26:06,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:26:06,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:26:06,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:26:06,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:26:06,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:26:06,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:26:06,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:26:06,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:26:06,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:26:06,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:26:06,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:26:06,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:26:06,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:26:06,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:26:06,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:26:06,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:26:06,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:26:06,747 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:26:06,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:26:06,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:26:06,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:26:06,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:26:06,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:26:06,758 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:26:06,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:26:06,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:26:06,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:26:06,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:26:06,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:26:06,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:26:06,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:26:06,761 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:26:06,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:26:06,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:26:06,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:26:06,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:26:06,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:26:06,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:26:06,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:26:06,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:26:06,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:26:06,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:26:06,763 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:26:06,764 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:26:06,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:26:06,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:26:06,764 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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2021-11-22 15:26:07,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:26:07,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:26:07,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:26:07,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:26:07,150 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:26:07,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-22 15:26:07,235 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0/data/a827e4f08/98d2e1be103f4f1886f2aee36e60cff0/FLAG5de9026fc [2021-11-22 15:26:08,360 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:26:08,361 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-22 15:26:08,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0/data/a827e4f08/98d2e1be103f4f1886f2aee36e60cff0/FLAG5de9026fc [2021-11-22 15:26:08,633 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0/data/a827e4f08/98d2e1be103f4f1886f2aee36e60cff0 [2021-11-22 15:26:08,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:26:08,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:26:08,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:26:08,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:26:08,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:26:08,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:26:08" (1/1) ... [2021-11-22 15:26:08,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f706de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:08, skipping insertion in model container [2021-11-22 15:26:08,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:26:08" (1/1) ... [2021-11-22 15:26:08,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:26:08,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:26:12,834 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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-22 15:26:12,837 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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-22 15:26:12,838 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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-22 15:26:12,839 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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-22 15:26:12,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:26:12,946 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:26:13,427 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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2021-11-22 15:26:13,428 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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2021-11-22 15:26:13,429 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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2021-11-22 15:26:13,429 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_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2021-11-22 15:26:13,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:26:13,734 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:26:13,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13 WrapperNode [2021-11-22 15:26:13,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:26:13,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:26:13,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:26:13,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:26:13,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13" (1/1) ... [2021-11-22 15:26:13,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13" (1/1) ... [2021-11-22 15:26:17,927 INFO L137 Inliner]: procedures = 522, calls = 3749, calls flagged for inlining = 1657, calls inlined = 15213, statements flattened = 125531 [2021-11-22 15:26:17,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:26:17,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:26:17,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:26:17,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:26:17,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13" (1/1) ... [2021-11-22 15:26:17,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13" (1/1) ... [2021-11-22 15:26:18,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13" (1/1) ... [2021-11-22 15:26:18,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13" (1/1) ... [2021-11-22 15:26:21,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13" (1/1) ... [2021-11-22 15:26:21,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13" (1/1) ... [2021-11-22 15:26:21,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13" (1/1) ... [2021-11-22 15:26:22,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:26:22,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:26:22,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:26:22,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:26:22,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13" (1/1) ... [2021-11-22 15:26:22,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:26:22,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:22,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:22,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce2ce8b7-4271-4625-878a-cbc4c7c2efe2/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:26:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:26:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 15:26:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 15:26:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:26:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:26:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:26:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:26:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 15:26:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 15:26:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:26:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:26:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 15:26:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 15:26:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-22 15:26:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-22 15:26:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:26:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:26:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:26:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:26:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-22 15:26:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:26:23,858 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:26:23,860 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:27:12,339 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-22 15:27:12,339 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-22 15:27:12,339 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-22 15:27:12,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,342 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,343 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,343 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res#1 := 0; [2021-11-22 15:27:12,346 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-22 15:27:12,352 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:27:12,435 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:27:12,435 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:27:12,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:27:12 BoogieIcfgContainer [2021-11-22 15:27:12,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:27:12,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:27:12,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:27:12,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:27:12,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:26:08" (1/3) ... [2021-11-22 15:27:12,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31292aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:27:12, skipping insertion in model container [2021-11-22 15:27:12,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:13" (2/3) ... [2021-11-22 15:27:12,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31292aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:27:12, skipping insertion in model container [2021-11-22 15:27:12,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:27:12" (3/3) ... [2021-11-22 15:27:12,464 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-22 15:27:12,469 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:27:12,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2021-11-22 15:27:12,597 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:27:12,603 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 15:27:12,603 INFO L340 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2021-11-22 15:27:12,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 21903 states, 21839 states have (on average 1.1729932689225697) internal successors, (25617), 21888 states have internal predecessors, (25617), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-22 15:27:12,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-22 15:27:12,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:27:12,905 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] [2021-11-22 15:27:12,906 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-22 15:27:12,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:27:12,911 INFO L85 PathProgramCache]: Analyzing trace with hash -341763505, now seen corresponding path program 1 times [2021-11-22 15:27:12,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:27:12,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864198788] [2021-11-22 15:27:12,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:27:12,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:27:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:27:13,814 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 15:27:13,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:27:13,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864198788] [2021-11-22 15:27:13,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864198788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:27:13,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:27:13,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:27:13,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408540398] [2021-11-22 15:27:13,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:27:13,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:27:13,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:27:13,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:27:13,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:27:13,901 INFO L87 Difference]: Start difference. First operand has 21903 states, 21839 states have (on average 1.1729932689225697) internal successors, (25617), 21888 states have internal predecessors, (25617), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 15:27:16,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:27:16,291 INFO L93 Difference]: Finished difference Result 64749 states and 75727 transitions. [2021-11-22 15:27:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:27:16,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2021-11-22 15:27:16,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:27:16,635 INFO L225 Difference]: With dead ends: 64749 [2021-11-22 15:27:16,636 INFO L226 Difference]: Without dead ends: 42737 [2021-11-22 15:27:16,813 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 15:27:16,818 INFO L933 BasicCegarLoop]: 25540 mSDtfsCounter, 24833 mSDsluCounter, 25478 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24833 SdHoareTripleChecker+Valid, 51018 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:27:16,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24833 Valid, 51018 Invalid, 34 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:27:16,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42737 states. [2021-11-22 15:27:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42737 to 42711. [2021-11-22 15:27:18,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42711 states, 42632 states have (on average 1.1581675736535935) internal successors, (49375), 42682 states have internal predecessors, (49375), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-22 15:27:18,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42711 states to 42711 states and 49427 transitions. [2021-11-22 15:27:18,936 INFO L78 Accepts]: Start accepts. Automaton has 42711 states and 49427 transitions. Word has length 128 [2021-11-22 15:27:18,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:27:18,944 INFO L470 AbstractCegarLoop]: Abstraction has 42711 states and 49427 transitions. [2021-11-22 15:27:18,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 15:27:18,947 INFO L276 IsEmpty]: Start isEmpty. Operand 42711 states and 49427 transitions. [2021-11-22 15:27:18,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-22 15:27:18,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:27:18,955 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] [2021-11-22 15:27:18,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:27:18,956 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-22 15:27:18,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:27:18,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1207657759, now seen corresponding path program 1 times [2021-11-22 15:27:18,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:27:18,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192407559] [2021-11-22 15:27:18,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:27:18,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:27:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:27:19,389 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 15:27:19,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:27:19,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192407559] [2021-11-22 15:27:19,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192407559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:27:19,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:27:19,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:27:19,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178274000] [2021-11-22 15:27:19,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:27:19,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:27:19,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:27:19,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:27:19,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:27:19,400 INFO L87 Difference]: Start difference. First operand 42711 states and 49427 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 15:27:22,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:27:22,257 INFO L93 Difference]: Finished difference Result 126551 states and 146388 transitions. [2021-11-22 15:27:22,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:27:22,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 129 [2021-11-22 15:27:22,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:27:22,812 INFO L225 Difference]: With dead ends: 126551 [2021-11-22 15:27:22,813 INFO L226 Difference]: Without dead ends: 84133 [2021-11-22 15:27:23,036 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 15:27:23,039 INFO L933 BasicCegarLoop]: 24997 mSDtfsCounter, 24147 mSDsluCounter, 24825 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24147 SdHoareTripleChecker+Valid, 49822 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:27:23,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24147 Valid, 49822 Invalid, 61 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:27:23,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84133 states. [2021-11-22 15:27:25,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84133 to 83849. [2021-11-22 15:27:25,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83849 states, 83742 states have (on average 1.156946335172315) internal successors, (96885), 83796 states have internal predecessors, (96885), 52 states have call successors, (52), 8 states have call predecessors, (52), 6 states have return successors, (74), 46 states have call predecessors, (74), 52 states have call successors, (74) [2021-11-22 15:27:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83849 states to 83849 states and 97011 transitions. [2021-11-22 15:27:26,157 INFO L78 Accepts]: Start accepts. Automaton has 83849 states and 97011 transitions. Word has length 129 [2021-11-22 15:27:26,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:27:26,158 INFO L470 AbstractCegarLoop]: Abstraction has 83849 states and 97011 transitions. [2021-11-22 15:27:26,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 15:27:26,159 INFO L276 IsEmpty]: Start isEmpty. Operand 83849 states and 97011 transitions. [2021-11-22 15:27:26,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-22 15:27:26,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:27:26,180 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:26,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:27:26,181 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-22 15:27:26,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:27:26,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1009243143, now seen corresponding path program 1 times [2021-11-22 15:27:26,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:27:26,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32038105] [2021-11-22 15:27:26,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:27:26,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:27:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:27:26,540 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:27:26,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:27:26,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32038105] [2021-11-22 15:27:26,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32038105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:27:26,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:27:26,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:27:26,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115758653] [2021-11-22 15:27:26,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:27:26,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:27:26,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:27:26,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:27:26,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:27:26,550 INFO L87 Difference]: Start difference. First operand 83849 states and 97011 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 15:27:29,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:27:29,841 INFO L93 Difference]: Finished difference Result 167429 states and 193714 transitions. [2021-11-22 15:27:29,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:27:29,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 158 [2021-11-22 15:27:29,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:27:30,337 INFO L225 Difference]: With dead ends: 167429 [2021-11-22 15:27:30,337 INFO L226 Difference]: Without dead ends: 125514 [2021-11-22 15:27:30,567 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 15:27:30,573 INFO L933 BasicCegarLoop]: 49432 mSDtfsCounter, 24442 mSDsluCounter, 24966 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24442 SdHoareTripleChecker+Valid, 74398 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:27:30,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24442 Valid, 74398 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:27:30,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125514 states. [2021-11-22 15:27:34,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125514 to 125488. [2021-11-22 15:27:34,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125488 states, 125352 states have (on average 1.1569181185780841) internal successors, (145022), 125409 states have internal predecessors, (145022), 78 states have call successors, (78), 12 states have call predecessors, (78), 9 states have return successors, (111), 69 states have call predecessors, (111), 78 states have call successors, (111) [2021-11-22 15:27:34,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125488 states to 125488 states and 145211 transitions. [2021-11-22 15:27:34,827 INFO L78 Accepts]: Start accepts. Automaton has 125488 states and 145211 transitions. Word has length 158 [2021-11-22 15:27:34,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:27:34,828 INFO L470 AbstractCegarLoop]: Abstraction has 125488 states and 145211 transitions. [2021-11-22 15:27:34,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 15:27:34,828 INFO L276 IsEmpty]: Start isEmpty. Operand 125488 states and 145211 transitions. [2021-11-22 15:27:34,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-22 15:27:34,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:27:34,843 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:34,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:27:34,844 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-22 15:27:34,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:27:34,845 INFO L85 PathProgramCache]: Analyzing trace with hash -579104759, now seen corresponding path program 1 times [2021-11-22 15:27:34,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:27:34,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988566767] [2021-11-22 15:27:34,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:27:34,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:27:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:27:35,405 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 15:27:35,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:27:35,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988566767] [2021-11-22 15:27:35,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988566767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:27:35,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:27:35,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:27:35,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884589267] [2021-11-22 15:27:35,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:27:35,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:27:35,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:27:35,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:27:35,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:27:35,408 INFO L87 Difference]: Start difference. First operand 125488 states and 145211 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 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 15:27:39,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:27:39,648 INFO L93 Difference]: Finished difference Result 125488 states and 145211 transitions. [2021-11-22 15:27:39,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:27:39,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 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 158 [2021-11-22 15:27:39,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:27:39,986 INFO L225 Difference]: With dead ends: 125488 [2021-11-22 15:27:39,986 INFO L226 Difference]: Without dead ends: 125482 [2021-11-22 15:27:40,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:27:40,056 INFO L933 BasicCegarLoop]: 24980 mSDtfsCounter, 24843 mSDsluCounter, 24884 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24843 SdHoareTripleChecker+Valid, 49864 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 15:27:40,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24843 Valid, 49864 Invalid, 106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 15:27:40,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125482 states. [2021-11-22 15:27:44,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125482 to 125482. [2021-11-22 15:27:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125482 states, 125349 states have (on average 1.1568979409488707) internal successors, (145016), 125403 states have internal predecessors, (145016), 78 states have call successors, (78), 12 states have call predecessors, (78), 9 states have return successors, (111), 69 states have call predecessors, (111), 78 states have call successors, (111) [2021-11-22 15:27:45,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125482 states to 125482 states and 145205 transitions. [2021-11-22 15:27:45,156 INFO L78 Accepts]: Start accepts. Automaton has 125482 states and 145205 transitions. Word has length 158 [2021-11-22 15:27:45,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:27:45,157 INFO L470 AbstractCegarLoop]: Abstraction has 125482 states and 145205 transitions. [2021-11-22 15:27:45,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 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 15:27:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 125482 states and 145205 transitions. [2021-11-22 15:27:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-22 15:27:45,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:27:45,174 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:27:45,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:27:45,174 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 46 more)] === [2021-11-22 15:27:45,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:27:45,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1826713132, now seen corresponding path program 1 times [2021-11-22 15:27:45,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:27:45,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303483198] [2021-11-22 15:27:45,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:27:45,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:27:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:27:46,185 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-22 15:27:46,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:27:46,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303483198] [2021-11-22 15:27:46,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303483198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:27:46,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:27:46,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:27:46,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422830253] [2021-11-22 15:27:46,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:27:46,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:27:46,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:27:46,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:27:46,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:27:46,188 INFO L87 Difference]: Start difference. First operand 125482 states and 145205 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 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 15:27:49,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:27:49,691 INFO L93 Difference]: Finished difference Result 125482 states and 145205 transitions. [2021-11-22 15:27:49,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:27:49,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 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 160 [2021-11-22 15:27:49,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:27:50,033 INFO L225 Difference]: With dead ends: 125482 [2021-11-22 15:27:50,034 INFO L226 Difference]: Without dead ends: 125476 [2021-11-22 15:27:50,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:27:50,100 INFO L933 BasicCegarLoop]: 24974 mSDtfsCounter, 24832 mSDsluCounter, 24881 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24832 SdHoareTripleChecker+Valid, 49855 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 15:27:50,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24832 Valid, 49855 Invalid, 106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 15:27:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125476 states.