./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 14:04:29,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:04:29,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:04:29,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:04:29,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:04:29,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:04:29,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:04:29,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:04:29,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:04:29,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:04:29,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:04:29,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:04:29,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:04:29,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:04:29,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:04:29,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:04:29,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:04:29,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:04:29,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:04:29,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:04:29,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:04:29,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:04:29,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:04:29,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:04:29,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:04:29,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:04:29,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:04:29,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:04:29,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:04:29,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:04:29,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:04:29,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:04:29,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:04:29,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:04:29,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:04:29,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:04:29,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:04:29,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:04:29,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:04:29,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:04:29,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:04:29,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 14:04:29,619 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:04:29,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:04:29,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:04:29,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:04:29,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:04:29,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:04:29,630 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:04:29,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:04:29,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:04:29,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:04:29,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 14:04:29,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 14:04:29,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 14:04:29,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:04:29,633 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:04:29,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 14:04:29,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:04:29,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:04:29,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 14:04:29,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:04:29,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:04:29,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 14:04:29,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 14:04:29,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:04:29,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 14:04:29,636 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 14:04:29,636 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 14:04:29,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 14:04:29,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:04:29,638 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_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2021-11-23 14:04:29,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:04:29,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:04:29,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:04:29,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:04:29,969 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:04:29,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-11-23 14:04:30,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/data/ac4e75bb1/4a14c992fcfd4ce0b8de4e962e3f27af/FLAG8cadbbbeb [2021-11-23 14:04:31,074 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:04:31,075 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-11-23 14:04:31,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/data/ac4e75bb1/4a14c992fcfd4ce0b8de4e962e3f27af/FLAG8cadbbbeb [2021-11-23 14:04:31,425 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/data/ac4e75bb1/4a14c992fcfd4ce0b8de4e962e3f27af [2021-11-23 14:04:31,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:04:31,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:04:31,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:04:31,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:04:31,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:04:31,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:31" (1/1) ... [2021-11-23 14:04:31,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cab5b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:31, skipping insertion in model container [2021-11-23 14:04:31,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:31" (1/1) ... [2021-11-23 14:04:31,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:04:31,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:04:34,918 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_151707cd-c24b-46b5-8dc5-f23c845e0095/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2021-11-23 14:04:34,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:04:35,035 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:04:35,656 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_151707cd-c24b-46b5-8dc5-f23c845e0095/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2021-11-23 14:04:35,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:04:35,884 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:04:35,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35 WrapperNode [2021-11-23 14:04:35,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:04:35,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:04:35,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:04:35,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:04:35,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:36,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:36,967 INFO L137 Inliner]: procedures = 426, calls = 2215, calls flagged for inlining = 803, calls inlined = 3362, statements flattened = 35379 [2021-11-23 14:04:36,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:04:36,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:04:36,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:04:36,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:04:36,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:36,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:37,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:37,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:37,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:38,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:38,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:38,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:04:38,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:04:38,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:04:38,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:04:38,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (1/1) ... [2021-11-23 14:04:38,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 14:04:38,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:38,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:38,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151707cd-c24b-46b5-8dc5-f23c845e0095/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 14:04:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2021-11-23 14:04:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2021-11-23 14:04:38,701 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2021-11-23 14:04:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2021-11-23 14:04:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 14:04:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 14:04:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 14:04:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 14:04:38,702 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2021-11-23 14:04:38,702 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2021-11-23 14:04:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2021-11-23 14:04:38,703 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2021-11-23 14:04:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 14:04:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-23 14:04:38,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-23 14:04:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 14:04:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 14:04:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 14:04:38,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 14:04:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:04:38,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:04:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 14:04:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 14:04:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2021-11-23 14:04:38,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2021-11-23 14:04:38,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 14:04:38,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 14:04:38,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 14:04:38,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 14:04:38,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 14:04:40,723 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:04:40,725 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:04:58,535 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 14:04:58,536 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 14:04:58,536 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 14:04:58,536 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-23 14:04:58,536 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res#1 := 0; [2021-11-23 14:04:58,536 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res#1 := 0; [2021-11-23 14:04:58,537 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 14:04:58,537 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 14:04:58,537 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#1: ldv_switch_3_#res#1 := 0; [2021-11-23 14:04:58,538 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 14:05:02,562 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:05:02,625 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:05:02,625 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 14:05:02,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:02 BoogieIcfgContainer [2021-11-23 14:05:02,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:05:02,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 14:05:02,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 14:05:02,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 14:05:02,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:31" (1/3) ... [2021-11-23 14:05:02,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f52f293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:02, skipping insertion in model container [2021-11-23 14:05:02,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:35" (2/3) ... [2021-11-23 14:05:02,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f52f293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:05:02, skipping insertion in model container [2021-11-23 14:05:02,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:05:02" (3/3) ... [2021-11-23 14:05:02,645 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2021-11-23 14:05:02,651 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 14:05:02,651 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-23 14:05:02,746 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 14:05:02,753 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 14:05:02,753 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-23 14:05:02,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 6338 states, 6298 states have (on average 1.2913623372499206) internal successors, (8133), 6305 states have internal predecessors, (8133), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-23 14:05:02,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 14:05:02,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:05:02,885 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] [2021-11-23 14:05:02,886 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-23 14:05:02,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:05:02,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1280656291, now seen corresponding path program 1 times [2021-11-23 14:05:02,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:05:02,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541451658] [2021-11-23 14:05:02,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:02,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:05:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:03,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:05:03,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:05:03,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541451658] [2021-11-23 14:05:03,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541451658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:05:03,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:05:03,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:05:03,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801902760] [2021-11-23 14:05:03,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:05:03,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:05:03,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:05:03,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:05:03,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:05:03,878 INFO L87 Difference]: Start difference. First operand has 6338 states, 6298 states have (on average 1.2913623372499206) internal successors, (8133), 6305 states have internal predecessors, (8133), 25 states have call successors, (25), 7 states have call predecessors, (25), 7 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:04,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:05:04,725 INFO L93 Difference]: Finished difference Result 18697 states and 24197 transitions. [2021-11-23 14:05:04,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:05:04,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2021-11-23 14:05:04,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:05:04,850 INFO L225 Difference]: With dead ends: 18697 [2021-11-23 14:05:04,850 INFO L226 Difference]: Without dead ends: 12195 [2021-11-23 14:05:04,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:05:04,972 INFO L933 BasicCegarLoop]: 8118 mSDtfsCounter, 7876 mSDsluCounter, 8052 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7876 SdHoareTripleChecker+Valid, 16170 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:05:04,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7876 Valid, 16170 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:05:05,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12195 states. [2021-11-23 14:05:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12195 to 12195. [2021-11-23 14:05:05,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12195 states, 12123 states have (on average 1.2628062360801782) internal successors, (15309), 12130 states have internal predecessors, (15309), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-11-23 14:05:05,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12195 states to 12195 states and 15409 transitions. [2021-11-23 14:05:05,598 INFO L78 Accepts]: Start accepts. Automaton has 12195 states and 15409 transitions. Word has length 49 [2021-11-23 14:05:05,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:05:05,599 INFO L470 AbstractCegarLoop]: Abstraction has 12195 states and 15409 transitions. [2021-11-23 14:05:05,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:05,600 INFO L276 IsEmpty]: Start isEmpty. Operand 12195 states and 15409 transitions. [2021-11-23 14:05:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 14:05:05,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:05:05,614 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:05:05,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 14:05:05,615 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-23 14:05:05,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:05:05,616 INFO L85 PathProgramCache]: Analyzing trace with hash 980181909, now seen corresponding path program 1 times [2021-11-23 14:05:05,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:05:05,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230144342] [2021-11-23 14:05:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:05,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:05:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:06,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:05:06,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:05:06,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230144342] [2021-11-23 14:05:06,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230144342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:05:06,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:05:06,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:05:06,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646755881] [2021-11-23 14:05:06,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:05:06,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:05:06,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:05:06,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:05:06,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:05:06,021 INFO L87 Difference]: Start difference. First operand 12195 states and 15409 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:06,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:05:06,688 INFO L93 Difference]: Finished difference Result 24296 states and 30714 transitions. [2021-11-23 14:05:06,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:05:06,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-23 14:05:06,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:05:06,887 INFO L225 Difference]: With dead ends: 24296 [2021-11-23 14:05:06,888 INFO L226 Difference]: Without dead ends: 18209 [2021-11-23 14:05:06,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:05:06,948 INFO L933 BasicCegarLoop]: 15405 mSDtfsCounter, 7637 mSDsluCounter, 7756 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7637 SdHoareTripleChecker+Valid, 23161 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:05:06,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7637 Valid, 23161 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:05:06,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18209 states. [2021-11-23 14:05:07,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18209 to 18209. [2021-11-23 14:05:07,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18209 states, 18105 states have (on average 1.2633526650096658) internal successors, (22873), 18112 states have internal predecessors, (22873), 75 states have call successors, (75), 21 states have call predecessors, (75), 21 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2021-11-23 14:05:07,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18209 states to 18209 states and 23023 transitions. [2021-11-23 14:05:07,811 INFO L78 Accepts]: Start accepts. Automaton has 18209 states and 23023 transitions. Word has length 75 [2021-11-23 14:05:07,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:05:07,811 INFO L470 AbstractCegarLoop]: Abstraction has 18209 states and 23023 transitions. [2021-11-23 14:05:07,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:07,812 INFO L276 IsEmpty]: Start isEmpty. Operand 18209 states and 23023 transitions. [2021-11-23 14:05:07,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 14:05:07,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:05:07,820 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:05:07,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 14:05:07,821 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-23 14:05:07,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:05:07,822 INFO L85 PathProgramCache]: Analyzing trace with hash 393375895, now seen corresponding path program 1 times [2021-11-23 14:05:07,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:05:07,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545514457] [2021-11-23 14:05:07,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:07,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:05:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:08,234 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 14:05:08,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:05:08,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545514457] [2021-11-23 14:05:08,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545514457] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:05:08,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:05:08,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:05:08,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333011062] [2021-11-23 14:05:08,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:05:08,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:05:08,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:05:08,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:05:08,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:05:08,237 INFO L87 Difference]: Start difference. First operand 18209 states and 23023 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:09,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:05:09,041 INFO L93 Difference]: Finished difference Result 18209 states and 23023 transitions. [2021-11-23 14:05:09,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 14:05:09,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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 75 [2021-11-23 14:05:09,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:05:09,157 INFO L225 Difference]: With dead ends: 18209 [2021-11-23 14:05:09,157 INFO L226 Difference]: Without dead ends: 18205 [2021-11-23 14:05:09,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:05:09,179 INFO L933 BasicCegarLoop]: 7786 mSDtfsCounter, 7725 mSDsluCounter, 7770 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7725 SdHoareTripleChecker+Valid, 15556 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:05:09,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7725 Valid, 15556 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 14:05:09,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18205 states. [2021-11-23 14:05:10,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18205 to 18205. [2021-11-23 14:05:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18205 states, 18103 states have (on average 1.2632712810031486) internal successors, (22869), 18108 states have internal predecessors, (22869), 75 states have call successors, (75), 21 states have call predecessors, (75), 21 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2021-11-23 14:05:10,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18205 states to 18205 states and 23019 transitions. [2021-11-23 14:05:10,198 INFO L78 Accepts]: Start accepts. Automaton has 18205 states and 23019 transitions. Word has length 75 [2021-11-23 14:05:10,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:05:10,198 INFO L470 AbstractCegarLoop]: Abstraction has 18205 states and 23019 transitions. [2021-11-23 14:05:10,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:10,199 INFO L276 IsEmpty]: Start isEmpty. Operand 18205 states and 23019 transitions. [2021-11-23 14:05:10,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 14:05:10,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:05:10,208 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:05:10,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 14:05:10,208 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-23 14:05:10,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:05:10,209 INFO L85 PathProgramCache]: Analyzing trace with hash 77466554, now seen corresponding path program 1 times [2021-11-23 14:05:10,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:05:10,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118378469] [2021-11-23 14:05:10,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:10,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:05:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:10,660 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 14:05:10,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:05:10,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118378469] [2021-11-23 14:05:10,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118378469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:05:10,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:05:10,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:05:10,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188819544] [2021-11-23 14:05:10,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:05:10,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:05:10,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:05:10,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:05:10,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:05:10,664 INFO L87 Difference]: Start difference. First operand 18205 states and 23019 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:05:11,961 INFO L93 Difference]: Finished difference Result 36176 states and 45934 transitions. [2021-11-23 14:05:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:05:11,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 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 77 [2021-11-23 14:05:11,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:05:12,350 INFO L225 Difference]: With dead ends: 36176 [2021-11-23 14:05:12,352 INFO L226 Difference]: Without dead ends: 36172 [2021-11-23 14:05:12,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:05:12,374 INFO L933 BasicCegarLoop]: 9042 mSDtfsCounter, 7730 mSDsluCounter, 16673 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7730 SdHoareTripleChecker+Valid, 25715 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:05:12,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7730 Valid, 25715 Invalid, 52 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:05:12,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36172 states. [2021-11-23 14:05:13,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36172 to 30711. [2021-11-23 14:05:13,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30711 states, 30513 states have (on average 1.2665749025005735) internal successors, (38647), 30518 states have internal predecessors, (38647), 150 states have call successors, (150), 42 states have call predecessors, (150), 42 states have return successors, (300), 150 states have call predecessors, (300), 150 states have call successors, (300) [2021-11-23 14:05:14,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30711 states to 30711 states and 39097 transitions. [2021-11-23 14:05:14,021 INFO L78 Accepts]: Start accepts. Automaton has 30711 states and 39097 transitions. Word has length 77 [2021-11-23 14:05:14,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:05:14,023 INFO L470 AbstractCegarLoop]: Abstraction has 30711 states and 39097 transitions. [2021-11-23 14:05:14,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:14,023 INFO L276 IsEmpty]: Start isEmpty. Operand 30711 states and 39097 transitions. [2021-11-23 14:05:14,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-23 14:05:14,032 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:05:14,032 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:05:14,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 14:05:14,033 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-23 14:05:14,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:05:14,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1431268189, now seen corresponding path program 1 times [2021-11-23 14:05:14,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:05:14,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104269156] [2021-11-23 14:05:14,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:14,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:05:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:14,345 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 14:05:14,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:05:14,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104269156] [2021-11-23 14:05:14,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104269156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:05:14,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:05:14,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:05:14,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538573934] [2021-11-23 14:05:14,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:05:14,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:05:14,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:05:14,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:05:14,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:05:14,356 INFO L87 Difference]: Start difference. First operand 30711 states and 39097 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:16,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:05:16,621 INFO L93 Difference]: Finished difference Result 61218 states and 78420 transitions. [2021-11-23 14:05:16,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:05:16,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 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 79 [2021-11-23 14:05:16,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:05:17,061 INFO L225 Difference]: With dead ends: 61218 [2021-11-23 14:05:17,061 INFO L226 Difference]: Without dead ends: 61214 [2021-11-23 14:05:17,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:05:17,252 INFO L933 BasicCegarLoop]: 9054 mSDtfsCounter, 7728 mSDsluCounter, 16695 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7728 SdHoareTripleChecker+Valid, 25749 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:05:17,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7728 Valid, 25749 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:05:17,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61214 states. [2021-11-23 14:05:19,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61214 to 55709. [2021-11-23 14:05:19,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55709 states, 55319 states have (on average 1.2688407238019488) internal successors, (70191), 55324 states have internal predecessors, (70191), 300 states have call successors, (300), 84 states have call predecessors, (300), 84 states have return successors, (1050), 300 states have call predecessors, (1050), 300 states have call successors, (1050) [2021-11-23 14:05:19,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55709 states to 55709 states and 71541 transitions. [2021-11-23 14:05:19,772 INFO L78 Accepts]: Start accepts. Automaton has 55709 states and 71541 transitions. Word has length 79 [2021-11-23 14:05:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:05:19,773 INFO L470 AbstractCegarLoop]: Abstraction has 55709 states and 71541 transitions. [2021-11-23 14:05:19,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 55709 states and 71541 transitions. [2021-11-23 14:05:19,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 14:05:19,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:05:19,786 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:05:19,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 14:05:19,787 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-23 14:05:19,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:05:19,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1059549056, now seen corresponding path program 1 times [2021-11-23 14:05:19,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:05:19,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039823128] [2021-11-23 14:05:19,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:19,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:05:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 14:05:20,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:05:20,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039823128] [2021-11-23 14:05:20,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039823128] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:05:20,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:05:20,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:05:20,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642728850] [2021-11-23 14:05:20,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:05:20,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 14:05:20,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:05:20,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 14:05:20,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 14:05:20,095 INFO L87 Difference]: Start difference. First operand 55709 states and 71541 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:23,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:05:23,263 INFO L93 Difference]: Finished difference Result 111283 states and 144286 transitions. [2021-11-23 14:05:23,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 14:05:23,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 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 81 [2021-11-23 14:05:23,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:05:24,007 INFO L225 Difference]: With dead ends: 111283 [2021-11-23 14:05:24,007 INFO L226 Difference]: Without dead ends: 111246 [2021-11-23 14:05:24,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 14:05:24,106 INFO L933 BasicCegarLoop]: 7907 mSDtfsCounter, 7724 mSDsluCounter, 15572 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7724 SdHoareTripleChecker+Valid, 23479 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 14:05:24,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7724 Valid, 23479 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 14:05:24,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111246 states. [2021-11-23 14:05:28,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111246 to 111238. [2021-11-23 14:05:28,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111238 states, 110464 states have (on average 1.2691012456546928) internal successors, (140190), 110469 states have internal predecessors, (140190), 600 states have call successors, (600), 168 states have call predecessors, (600), 168 states have return successors, (3450), 600 states have call predecessors, (3450), 600 states have call successors, (3450) [2021-11-23 14:05:29,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111238 states to 111238 states and 144240 transitions. [2021-11-23 14:05:29,423 INFO L78 Accepts]: Start accepts. Automaton has 111238 states and 144240 transitions. Word has length 81 [2021-11-23 14:05:29,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:05:29,424 INFO L470 AbstractCegarLoop]: Abstraction has 111238 states and 144240 transitions. [2021-11-23 14:05:29,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:29,425 INFO L276 IsEmpty]: Start isEmpty. Operand 111238 states and 144240 transitions. [2021-11-23 14:05:30,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-23 14:05:30,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:05:30,049 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-23 14:05:30,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 14:05:30,050 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-23 14:05:30,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:05:30,051 INFO L85 PathProgramCache]: Analyzing trace with hash 194158150, now seen corresponding path program 1 times [2021-11-23 14:05:30,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:05:30,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613672259] [2021-11-23 14:05:30,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:05:30,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:05:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:05:30,350 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 14:05:30,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:05:30,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613672259] [2021-11-23 14:05:30,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613672259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:05:30,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:05:30,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 14:05:30,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118463845] [2021-11-23 14:05:30,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:05:30,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 14:05:30,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:05:30,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 14:05:30,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:05:30,353 INFO L87 Difference]: Start difference. First operand 111238 states and 144240 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:05:37,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:05:37,883 INFO L93 Difference]: Finished difference Result 315612 states and 407972 transitions. [2021-11-23 14:05:37,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 14:05:37,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 115 [2021-11-23 14:05:37,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:05:39,851 INFO L225 Difference]: With dead ends: 315612 [2021-11-23 14:05:39,852 INFO L226 Difference]: Without dead ends: 204467 [2021-11-23 14:05:41,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 14:05:41,091 INFO L933 BasicCegarLoop]: 11134 mSDtfsCounter, 6613 mSDsluCounter, 7694 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6613 SdHoareTripleChecker+Valid, 18828 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 14:05:41,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6613 Valid, 18828 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 14:05:41,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204467 states.