./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-hostap-hostap.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 12455b091320c0c76d2c423624e0edbad1b12a5513b49fa74bc1ca77b9c1138d --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 22:35:42,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 22:35:42,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 22:35:42,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 22:35:42,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 22:35:42,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 22:35:42,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 22:35:42,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 22:35:42,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 22:35:42,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 22:35:42,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 22:35:42,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 22:35:42,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 22:35:42,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 22:35:42,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 22:35:42,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 22:35:42,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 22:35:42,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 22:35:42,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 22:35:42,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 22:35:42,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 22:35:42,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 22:35:42,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 22:35:42,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 22:35:42,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 22:35:42,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 22:35:42,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 22:35:42,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 22:35:42,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 22:35:42,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 22:35:42,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 22:35:42,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 22:35:42,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 22:35:42,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 22:35:42,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 22:35:42,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 22:35:42,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 22:35:42,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 22:35:42,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 22:35:42,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 22:35:42,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 22:35:42,535 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 22:35:42,553 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 22:35:42,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 22:35:42,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 22:35:42,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 22:35:42,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 22:35:42,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 22:35:42,557 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 22:35:42,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 22:35:42,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 22:35:42,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 22:35:42,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 22:35:42,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 22:35:42,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 22:35:42,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 22:35:42,558 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 22:35:42,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 22:35:42,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 22:35:42,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 22:35:42,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 22:35:42,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:35:42,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 22:35:42,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 22:35:42,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 22:35:42,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 22:35:42,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 22:35:42,559 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 22:35:42,559 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 22:35:42,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 22:35:42,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 22:35:42,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12455b091320c0c76d2c423624e0edbad1b12a5513b49fa74bc1ca77b9c1138d [2021-11-05 22:35:42,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 22:35:42,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 22:35:42,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 22:35:42,858 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 22:35:42,864 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 22:35:42,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i [2021-11-05 22:35:42,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9001d647/db967db4a3094344abf2b796a8e0772d/FLAGc092af7dc [2021-11-05 22:35:43,696 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 22:35:43,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i [2021-11-05 22:35:43,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9001d647/db967db4a3094344abf2b796a8e0772d/FLAGc092af7dc [2021-11-05 22:35:44,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9001d647/db967db4a3094344abf2b796a8e0772d [2021-11-05 22:35:44,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 22:35:44,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 22:35:44,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 22:35:44,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 22:35:44,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 22:35:44,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:35:44" (1/1) ... [2021-11-05 22:35:44,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5392b18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:44, skipping insertion in model container [2021-11-05 22:35:44,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:35:44" (1/1) ... [2021-11-05 22:35:44,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 22:35:44,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 22:35:52,567 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892113,892126] [2021-11-05 22:35:52,569 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892282,892295] [2021-11-05 22:35:52,570 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892449,892462] [2021-11-05 22:35:52,575 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892617,892630] [2021-11-05 22:35:52,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:35:52,696 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 22:35:53,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892113,892126] [2021-11-05 22:35:53,741 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892282,892295] [2021-11-05 22:35:53,741 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892449,892462] [2021-11-05 22:35:53,741 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i[892617,892630] [2021-11-05 22:35:53,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:35:54,028 INFO L208 MainTranslator]: Completed translation [2021-11-05 22:35:54,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54 WrapperNode [2021-11-05 22:35:54,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 22:35:54,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 22:35:54,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 22:35:54,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 22:35:54,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54" (1/1) ... [2021-11-05 22:35:54,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54" (1/1) ... [2021-11-05 22:35:55,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 22:35:55,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 22:35:55,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 22:35:55,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 22:35:55,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54" (1/1) ... [2021-11-05 22:35:55,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54" (1/1) ... [2021-11-05 22:35:56,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54" (1/1) ... [2021-11-05 22:35:56,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54" (1/1) ... [2021-11-05 22:35:56,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54" (1/1) ... [2021-11-05 22:35:57,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54" (1/1) ... [2021-11-05 22:35:57,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54" (1/1) ... [2021-11-05 22:35:57,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 22:35:57,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 22:35:57,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 22:35:57,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 22:35:57,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54" (1/1) ... [2021-11-05 22:35:57,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:35:57,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 22:35:57,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 22:35:57,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 22:35:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure hostap_free_data [2021-11-05 22:35:57,753 INFO L138 BoogieDeclarations]: Found implementation of procedure hostap_free_data [2021-11-05 22:35:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-05 22:35:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 22:35:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 22:35:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 22:35:57,753 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 22:35:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 22:35:57,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 22:35:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 22:35:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 22:35:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 22:35:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 22:35:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure ap_free_sta [2021-11-05 22:35:57,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_free_sta [2021-11-05 22:35:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_open [2021-11-05 22:35:57,755 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_open [2021-11-05 22:35:57,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 22:35:57,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 22:35:57,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 22:35:57,755 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_close [2021-11-05 22:35:57,755 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_close [2021-11-05 22:35:57,755 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 22:35:57,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 22:35:57,755 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-05 22:35:57,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-05 22:35:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 22:35:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 22:35:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure prism2_tx_timeout [2021-11-05 22:35:57,756 INFO L138 BoogieDeclarations]: Found implementation of procedure prism2_tx_timeout [2021-11-05 22:35:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 22:35:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-05 22:38:17,146 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-05 22:38:17,147 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 22:38:17,147 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 22:38:17,147 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 22:38:17,147 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 22:38:17,147 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-05 22:38:17,148 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-05 22:38:17,148 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-05 22:38:17,148 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-05 22:38:17,148 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-05 22:38:17,148 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#9: ldv_switch_2_#res := 0; [2021-11-05 22:38:17,149 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 22:38:17,149 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,149 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,149 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,149 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,150 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,150 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,150 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,150 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,151 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#22: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,151 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#21: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,152 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#24: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,152 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#23: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,152 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#20: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,152 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,152 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,152 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#13: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,152 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,153 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#19: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,153 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#18: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,153 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#15: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,153 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#14: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,153 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#17: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,153 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#16: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,154 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 22:38:17,157 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 22:38:17,158 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-05 22:38:17,160 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 22:38:17,597 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 22:38:17,597 INFO L299 CfgBuilder]: Removed 13871 assume(true) statements. [2021-11-05 22:38:17,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:38:17 BoogieIcfgContainer [2021-11-05 22:38:17,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 22:38:17,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 22:38:17,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 22:38:17,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 22:38:17,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:35:44" (1/3) ... [2021-11-05 22:38:17,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e8bed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:38:17, skipping insertion in model container [2021-11-05 22:38:17,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:35:54" (2/3) ... [2021-11-05 22:38:17,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e8bed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:38:17, skipping insertion in model container [2021-11-05 22:38:17,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:38:17" (3/3) ... [2021-11-05 22:38:17,615 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-hostap-hostap.cil.i [2021-11-05 22:38:17,619 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 22:38:17,619 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 270 error locations. [2021-11-05 22:38:17,683 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 22:38:17,691 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 [2021-11-05 22:38:17,691 INFO L340 AbstractCegarLoop]: Starting to check reachability of 270 error locations. [2021-11-05 22:38:17,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 14821 states, 14512 states have (on average 1.3831312017640573) internal successors, (20072), 14785 states have internal predecessors, (20072), 32 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-05 22:38:17,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2021-11-05 22:38:17,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:38:17,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:38:17,863 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [prism2_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 267 more)] === [2021-11-05 22:38:17,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:38:17,867 INFO L85 PathProgramCache]: Analyzing trace with hash 252020228, now seen corresponding path program 1 times [2021-11-05 22:38:17,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:38:17,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968434238] [2021-11-05 22:38:17,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:38:17,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:38:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:38:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:38:19,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:38:19,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968434238] [2021-11-05 22:38:19,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968434238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:38:19,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:38:19,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:38:19,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131279893] [2021-11-05 22:38:19,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:38:19,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:38:19,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:38:19,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:38:19,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:38:19,580 INFO L87 Difference]: Start difference. First operand has 14821 states, 14512 states have (on average 1.3831312017640573) internal successors, (20072), 14785 states have internal predecessors, (20072), 32 states have call successors, (32), 7 states have call predecessors, (32), 7 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2021-11-05 22:38:21,845 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:38:22,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:38:22,786 INFO L93 Difference]: Finished difference Result 41272 states and 56312 transitions. [2021-11-05 22:38:22,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:38:22,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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 446 [2021-11-05 22:38:22,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:38:22,913 INFO L225 Difference]: With dead ends: 41272 [2021-11-05 22:38:22,913 INFO L226 Difference]: Without dead ends: 25636 [2021-11-05 22:38:22,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:38:22,973 INFO L933 BasicCegarLoop]: 19866 mSDtfsCounter, 17665 mSDsluCounter, 19772 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2306.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17665 SdHoareTripleChecker+Valid, 39638 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.33ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2418.55ms IncrementalHoareTripleChecker+Time [2021-11-05 22:38:22,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17665 Valid, 39638 Invalid, 79 Unknown, 0 Unchecked, 68.33ms Time], IncrementalHoareTripleChecker [16 Valid, 62 Invalid, 1 Unknown, 0 Unchecked, 2418.55ms Time] [2021-11-05 22:38:23,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25636 states. [2021-11-05 22:38:23,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25636 to 25180. [2021-11-05 22:38:23,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25180 states, 24832 states have (on average 1.313466494845361) internal successors, (32616), 25109 states have internal predecessors, (32616), 64 states have call successors, (64), 14 states have call predecessors, (64), 14 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-05 22:38:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25180 states to 25180 states and 32744 transitions. [2021-11-05 22:38:23,734 INFO L78 Accepts]: Start accepts. Automaton has 25180 states and 32744 transitions. Word has length 446 [2021-11-05 22:38:23,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:38:23,736 INFO L470 AbstractCegarLoop]: Abstraction has 25180 states and 32744 transitions. [2021-11-05 22:38:23,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2021-11-05 22:38:23,739 INFO L276 IsEmpty]: Start isEmpty. Operand 25180 states and 32744 transitions. [2021-11-05 22:38:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-11-05 22:38:23,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:38:23,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:38:23,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 22:38:23,750 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [prism2_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 267 more)] === [2021-11-05 22:38:23,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:38:23,751 INFO L85 PathProgramCache]: Analyzing trace with hash 659188358, now seen corresponding path program 1 times [2021-11-05 22:38:23,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:38:23,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361951984] [2021-11-05 22:38:23,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:38:23,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:38:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:38:25,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:38:25,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:38:25,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361951984] [2021-11-05 22:38:25,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361951984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:38:25,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:38:25,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:38:25,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843886951] [2021-11-05 22:38:25,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:38:25,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:38:25,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:38:25,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:38:25,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:38:25,007 INFO L87 Difference]: Start difference. First operand 25180 states and 32744 transitions. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 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) [2021-11-05 22:38:27,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:38:28,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:38:28,257 INFO L93 Difference]: Finished difference Result 57492 states and 74818 transitions. [2021-11-05 22:38:28,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:38:28,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 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 461 [2021-11-05 22:38:28,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:38:28,353 INFO L225 Difference]: With dead ends: 57492 [2021-11-05 22:38:28,354 INFO L226 Difference]: Without dead ends: 33468 [2021-11-05 22:38:28,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:38:28,418 INFO L933 BasicCegarLoop]: 17302 mSDtfsCounter, 13264 mSDsluCounter, 17226 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2290.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13264 SdHoareTripleChecker+Valid, 34528 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.06ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2395.62ms IncrementalHoareTripleChecker+Time [2021-11-05 22:38:28,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13264 Valid, 34528 Invalid, 70 Unknown, 0 Unchecked, 37.06ms Time], IncrementalHoareTripleChecker [13 Valid, 56 Invalid, 1 Unknown, 0 Unchecked, 2395.62ms Time] [2021-11-05 22:38:28,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33468 states. [2021-11-05 22:38:29,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33468 to 32912. [2021-11-05 22:38:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32912 states, 32529 states have (on average 1.315718282148237) internal successors, (42799), 32810 states have internal predecessors, (42799), 92 states have call successors, (92), 21 states have call predecessors, (92), 21 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2021-11-05 22:38:29,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32912 states to 32912 states and 42983 transitions. [2021-11-05 22:38:29,320 INFO L78 Accepts]: Start accepts. Automaton has 32912 states and 42983 transitions. Word has length 461 [2021-11-05 22:38:29,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:38:29,321 INFO L470 AbstractCegarLoop]: Abstraction has 32912 states and 42983 transitions. [2021-11-05 22:38:29,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 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) [2021-11-05 22:38:29,321 INFO L276 IsEmpty]: Start isEmpty. Operand 32912 states and 42983 transitions. [2021-11-05 22:38:29,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-11-05 22:38:29,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:38:29,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:38:29,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 22:38:29,329 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr189ASSERT_VIOLATIONERROR_FUNCTION === [prism2_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 267 more)] === [2021-11-05 22:38:29,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:38:29,330 INFO L85 PathProgramCache]: Analyzing trace with hash 2024045494, now seen corresponding path program 1 times [2021-11-05 22:38:29,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:38:29,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876942058] [2021-11-05 22:38:29,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:38:29,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:38:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:38:30,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:38:30,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:38:30,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876942058] [2021-11-05 22:38:30,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876942058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:38:30,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:38:30,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:38:30,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732866168] [2021-11-05 22:38:30,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:38:30,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:38:30,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:38:30,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:38:30,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:38:30,407 INFO L87 Difference]: Start difference. First operand 32912 states and 42983 transitions. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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) [2021-11-05 22:38:32,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:38:33,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:38:33,912 INFO L93 Difference]: Finished difference Result 96223 states and 126120 transitions. [2021-11-05 22:38:33,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:38:33,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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 462 [2021-11-05 22:38:33,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:38:34,185 INFO L225 Difference]: With dead ends: 96223 [2021-11-05 22:38:34,185 INFO L226 Difference]: Without dead ends: 64467 [2021-11-05 22:38:34,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.90ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:38:34,236 INFO L933 BasicCegarLoop]: 17269 mSDtfsCounter, 15843 mSDsluCounter, 17179 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2366.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15843 SdHoareTripleChecker+Valid, 34448 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.93ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2551.42ms IncrementalHoareTripleChecker+Time [2021-11-05 22:38:34,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15843 Valid, 34448 Invalid, 161 Unknown, 0 Unchecked, 33.93ms Time], IncrementalHoareTripleChecker [13 Valid, 147 Invalid, 1 Unknown, 0 Unchecked, 2551.42ms Time] [2021-11-05 22:38:34,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64467 states. [2021-11-05 22:38:35,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64467 to 63677. [2021-11-05 22:38:35,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63677 states, 63181 states have (on average 1.3211725043921432) internal successors, (83473), 63474 states have internal predecessors, (83473), 184 states have call successors, (184), 42 states have call predecessors, (184), 42 states have return successors, (184), 178 states have call predecessors, (184), 184 states have call successors, (184) [2021-11-05 22:38:35,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63677 states to 63677 states and 83841 transitions. [2021-11-05 22:38:35,647 INFO L78 Accepts]: Start accepts. Automaton has 63677 states and 83841 transitions. Word has length 462 [2021-11-05 22:38:35,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:38:35,648 INFO L470 AbstractCegarLoop]: Abstraction has 63677 states and 83841 transitions. [2021-11-05 22:38:35,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 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) [2021-11-05 22:38:35,648 INFO L276 IsEmpty]: Start isEmpty. Operand 63677 states and 83841 transitions. [2021-11-05 22:38:35,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2021-11-05 22:38:35,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:38:35,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:38:35,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 22:38:35,657 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr191ASSERT_VIOLATIONERROR_FUNCTION === [prism2_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 267 more)] === [2021-11-05 22:38:35,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:38:35,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1754176242, now seen corresponding path program 1 times [2021-11-05 22:38:35,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:38:35,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038938387] [2021-11-05 22:38:35,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:38:35,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:38:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:38:36,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:38:36,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:38:36,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038938387] [2021-11-05 22:38:36,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038938387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:38:36,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:38:36,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:38:36,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714872432] [2021-11-05 22:38:36,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:38:36,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:38:36,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:38:36,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:38:36,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:38:36,650 INFO L87 Difference]: Start difference. First operand 63677 states and 83841 transitions. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2021-11-05 22:38:38,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:38:41,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:38:41,012 INFO L93 Difference]: Finished difference Result 188193 states and 248297 transitions. [2021-11-05 22:38:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:38:41,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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 463 [2021-11-05 22:38:41,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:38:41,514 INFO L225 Difference]: With dead ends: 188193 [2021-11-05 22:38:41,515 INFO L226 Difference]: Without dead ends: 125672 [2021-11-05 22:38:41,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.13ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:38:41,652 INFO L933 BasicCegarLoop]: 17819 mSDtfsCounter, 15816 mSDsluCounter, 17171 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2469.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15816 SdHoareTripleChecker+Valid, 34990 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.12ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2606.28ms IncrementalHoareTripleChecker+Time [2021-11-05 22:38:41,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15816 Valid, 34990 Invalid, 161 Unknown, 0 Unchecked, 28.12ms Time], IncrementalHoareTripleChecker [13 Valid, 147 Invalid, 1 Unknown, 0 Unchecked, 2606.28ms Time] [2021-11-05 22:38:41,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125672 states. [2021-11-05 22:38:44,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125672 to 124898. [2021-11-05 22:38:44,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124898 states, 124176 states have (on average 1.3239837005540522) internal successors, (164407), 124493 states have internal predecessors, (164407), 368 states have call successors, (368), 84 states have call predecessors, (368), 84 states have return successors, (368), 356 states have call predecessors, (368), 368 states have call successors, (368) [2021-11-05 22:38:45,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124898 states to 124898 states and 165143 transitions. [2021-11-05 22:38:45,086 INFO L78 Accepts]: Start accepts. Automaton has 124898 states and 165143 transitions. Word has length 463 [2021-11-05 22:38:45,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:38:45,087 INFO L470 AbstractCegarLoop]: Abstraction has 124898 states and 165143 transitions. [2021-11-05 22:38:45,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2021-11-05 22:38:45,087 INFO L276 IsEmpty]: Start isEmpty. Operand 124898 states and 165143 transitions. [2021-11-05 22:38:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2021-11-05 22:38:45,095 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:38:45,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:38:45,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 22:38:45,095 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr193ASSERT_VIOLATIONERROR_FUNCTION === [prism2_tx_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, prism2_tx_timeoutErr2ASSERT_VIOLATIONERROR_FUNCTION (and 267 more)] === [2021-11-05 22:38:45,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:38:45,096 INFO L85 PathProgramCache]: Analyzing trace with hash 396532308, now seen corresponding path program 1 times [2021-11-05 22:38:45,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:38:45,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470996540] [2021-11-05 22:38:45,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:38:45,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:38:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:38:46,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:38:46,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:38:46,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470996540] [2021-11-05 22:38:46,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470996540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:38:46,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:38:46,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:38:46,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328064037] [2021-11-05 22:38:46,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:38:46,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:38:46,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:38:46,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:38:46,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:38:46,100 INFO L87 Difference]: Start difference. First operand 124898 states and 165143 transitions. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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)