./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.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 43bed732c323fe40708c0d64bb60905c00a1c3c7d8f882023d821fe272dfa892 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 04:15:53,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 04:15:53,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 04:15:53,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 04:15:53,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 04:15:53,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 04:15:53,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 04:15:53,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 04:15:53,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 04:15:53,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 04:15:53,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 04:15:53,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 04:15:53,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 04:15:53,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 04:15:53,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 04:15:53,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 04:15:53,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 04:15:53,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 04:15:53,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 04:15:53,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 04:15:53,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 04:15:53,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 04:15:53,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 04:15:53,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 04:15:53,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 04:15:53,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 04:15:53,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 04:15:53,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 04:15:53,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 04:15:53,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 04:15:53,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 04:15:53,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 04:15:53,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 04:15:53,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 04:15:53,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 04:15:53,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 04:15:53,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 04:15:53,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 04:15:53,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 04:15:53,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 04:15:53,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 04:15:53,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 04:15:53,636 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 04:15:53,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 04:15:53,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 04:15:53,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 04:15:53,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 04:15:53,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 04:15:53,640 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 04:15:53,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 04:15:53,640 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 04:15:53,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 04:15:53,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 04:15:53,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 04:15:53,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 04:15:53,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 04:15:53,642 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 04:15:53,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 04:15:53,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 04:15:53,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 04:15:53,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 04:15:53,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:15:53,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 04:15:53,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 04:15:53,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 04:15:53,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 04:15:53,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 04:15:53,643 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 04:15:53,643 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 04:15:53,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 04:15:53,644 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 04:15:53,644 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43bed732c323fe40708c0d64bb60905c00a1c3c7d8f882023d821fe272dfa892 [2021-11-23 04:15:53,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 04:15:53,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 04:15:53,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 04:15:53,878 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 04:15:53,879 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 04:15:53,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 04:15:53,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78e0ac32/0923833bbf424efb8544603f08eae419/FLAG5fcb7be82 [2021-11-23 04:15:54,687 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 04:15:54,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 04:15:54,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78e0ac32/0923833bbf424efb8544603f08eae419/FLAG5fcb7be82 [2021-11-23 04:15:55,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78e0ac32/0923833bbf424efb8544603f08eae419 [2021-11-23 04:15:55,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 04:15:55,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 04:15:55,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 04:15:55,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 04:15:55,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 04:15:55,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:15:55" (1/1) ... [2021-11-23 04:15:55,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@176d83b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:15:55, skipping insertion in model container [2021-11-23 04:15:55,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:15:55" (1/1) ... [2021-11-23 04:15:55,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 04:15:55,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 04:16:02,646 WARN L230 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_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860429,860442] [2021-11-23 04:16:02,648 WARN L230 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_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860574,860587] [2021-11-23 04:16:02,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:16:02,705 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 04:16:03,551 WARN L230 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_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860429,860442] [2021-11-23 04:16:03,551 WARN L230 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_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860574,860587] [2021-11-23 04:16:03,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:16:03,945 INFO L208 MainTranslator]: Completed translation [2021-11-23 04:16:03,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03 WrapperNode [2021-11-23 04:16:03,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 04:16:03,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 04:16:03,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 04:16:03,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 04:16:03,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03" (1/1) ... [2021-11-23 04:16:04,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03" (1/1) ... [2021-11-23 04:16:05,756 INFO L137 Inliner]: procedures = 823, calls = 7976, calls flagged for inlining = 1934, calls inlined = 9036, statements flattened = 109733 [2021-11-23 04:16:05,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 04:16:05,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 04:16:05,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 04:16:05,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 04:16:05,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03" (1/1) ... [2021-11-23 04:16:05,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03" (1/1) ... [2021-11-23 04:16:06,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03" (1/1) ... [2021-11-23 04:16:06,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03" (1/1) ... [2021-11-23 04:16:07,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03" (1/1) ... [2021-11-23 04:16:07,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03" (1/1) ... [2021-11-23 04:16:07,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03" (1/1) ... [2021-11-23 04:16:08,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 04:16:08,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 04:16:08,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 04:16:08,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 04:16:08,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03" (1/1) ... [2021-11-23 04:16:08,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:16:08,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:16:08,490 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) [2021-11-23 04:16:08,495 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 [2021-11-23 04:16:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_close [2021-11-23 04:16:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_close [2021-11-23 04:16:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_sw_reset [2021-11-23 04:16:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_sw_reset [2021-11-23 04:16:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_108 [2021-11-23 04:16:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_108 [2021-11-23 04:16:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_109 [2021-11-23 04:16:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_109 [2021-11-23 04:16:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_handle_link_down_ind [2021-11-23 04:16:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_handle_link_down_ind [2021-11-23 04:16:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_device_register [2021-11-23 04:16:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_device_register [2021-11-23 04:16:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_13_6 [2021-11-23 04:16:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_13_6 [2021-11-23 04:16:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_4_22 [2021-11-23 04:16:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_4_22 [2021-11-23 04:16:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure do_vxge_reset [2021-11-23 04:16:08,518 INFO L138 BoogieDeclarations]: Found implementation of procedure do_vxge_reset [2021-11-23 04:16:08,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_101 [2021-11-23 04:16:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_101 [2021-11-23 04:16:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_4_33 [2021-11-23 04:16:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_4_33 [2021-11-23 04:16:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_104 [2021-11-23 04:16:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_104 [2021-11-23 04:16:08,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_105 [2021-11-23 04:16:08,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_105 [2021-11-23 04:16:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_106 [2021-11-23 04:16:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_106 [2021-11-23 04:16:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_probe [2021-11-23 04:16:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_probe [2021-11-23 04:16:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 04:16:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_107 [2021-11-23 04:16:08,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_107 [2021-11-23 04:16:08,520 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_reset_all_vpaths [2021-11-23 04:16:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_reset_all_vpaths [2021-11-23 04:16:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_irq_register_17_2 [2021-11-23 04:16:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_irq_register_17_2 [2021-11-23 04:16:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 04:16:08,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-23 04:16:08,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-23 04:16:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-23 04:16:08,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-23 04:16:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 04:16:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 04:16:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 04:16:08,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-23 04:16:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-23 04:16:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_handle_link_up_ind [2021-11-23 04:16:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_handle_link_up_ind [2021-11-23 04:16:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 04:16:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 04:16:08,523 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_create [2021-11-23 04:16:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_create [2021-11-23 04:16:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 04:16:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 04:16:08,524 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_isr_napi [2021-11-23 04:16:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_isr_napi [2021-11-23 04:16:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 04:16:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 04:16:08,525 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_open [2021-11-23 04:16:08,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_open [2021-11-23 04:16:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_replenish [2021-11-23 04:16:08,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_replenish [2021-11-23 04:16:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_12_2 [2021-11-23 04:16:08,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_12_2 [2021-11-23 04:16:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_io_resume [2021-11-23 04:16:08,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_io_resume [2021-11-23 04:16:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_alarm_process [2021-11-23 04:16:08,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_alarm_process [2021-11-23 04:16:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_set_features [2021-11-23 04:16:08,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_set_features [2021-11-23 04:16:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 04:16:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_recover_from_reset [2021-11-23 04:16:08,528 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_recover_from_reset [2021-11-23 04:16:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_open [2021-11-23 04:16:08,528 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_open [2021-11-23 04:16:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_18_2 [2021-11-23 04:16:08,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_18_2 [2021-11-23 04:16:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_0_5 [2021-11-23 04:16:08,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_0_5 [2021-11-23 04:16:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_115 [2021-11-23 04:16:08,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_115 [2021-11-23 04:16:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_open_vpaths [2021-11-23 04:16:08,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_open_vpaths [2021-11-23 04:16:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_device_unregister [2021-11-23 04:16:08,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_device_unregister [2021-11-23 04:16:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_7_2 [2021-11-23 04:16:08,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_7_2 [2021-11-23 04:16:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_7 [2021-11-23 04:16:08,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_7 [2021-11-23 04:16:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_poll_vp_lockup [2021-11-23 04:16:08,531 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_poll_vp_lockup [2021-11-23 04:16:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 04:16:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 04:16:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 04:16:08,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 04:16:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 04:16:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_alarm_process [2021-11-23 04:16:08,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_alarm_process [2021-11-23 04:16:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_dummy_resourceless_instance_4 [2021-11-23 04:16:08,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_dummy_resourceless_instance_4 [2021-11-23 04:16:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-23 04:16:08,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-23 04:16:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-11-23 04:16:08,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-11-23 04:16:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_poll_vp_reset [2021-11-23 04:16:08,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_poll_vp_reset [2021-11-23 04:16:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 04:16:08,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 04:16:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_change_mtu [2021-11-23 04:16:08,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_change_mtu [2021-11-23 04:16:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_alarm_msix_handle [2021-11-23 04:16:08,534 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_alarm_msix_handle [2021-11-23 04:16:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_add_isr [2021-11-23 04:16:08,534 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_add_isr [2021-11-23 04:16:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 04:16:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_remove [2021-11-23 04:16:08,535 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_remove [2021-11-23 04:16:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure do_vxge_close [2021-11-23 04:16:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure do_vxge_close [2021-11-23 04:16:08,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_113 [2021-11-23 04:16:08,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_113 [2021-11-23 04:16:08,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 04:16:08,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-23 04:16:08,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-23 04:16:08,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_1_5 [2021-11-23 04:16:08,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_1_5 [2021-11-23 04:16:08,540 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_reset_vpath [2021-11-23 04:16:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_reset_vpath [2021-11-23 04:16:08,544 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_reset [2021-11-23 04:16:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_reset [2021-11-23 04:16:08,544 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_os_timer [2021-11-23 04:16:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_os_timer [2021-11-23 04:16:08,544 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_reset [2021-11-23 04:16:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_reset [2021-11-23 04:16:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_begin_irq [2021-11-23 04:16:08,545 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_begin_irq [2021-11-23 04:16:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_13_4 [2021-11-23 04:16:08,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_13_4 [2021-11-23 04:16:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 04:16:08,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 04:16:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 04:16:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 04:16:11,607 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 04:16:11,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 04:22:52,524 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_21_returnLabel#1: assume { :end_inline_ldv_entry_EMGentry_21 } true;main_#res#1 := 0; [2021-11-23 04:22:52,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L27505: #t~ret4625#1 := main_#res#1;assume { :end_inline_main } true; [2021-11-23 04:22:52,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_5_switch_break#1: call ULTIMATE.dealloc(ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0#1.base, ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0#1.offset);havoc ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0#1.base, ldv_pci_pci_instance_5_~#ldv_5_resource_pm_message~0#1.offset; [2021-11-23 04:22:52,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 04:23:04,292 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 04:23:04,346 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 04:23:04,347 INFO L301 CfgBuilder]: Removed 162 assume(true) statements. [2021-11-23 04:23:04,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:23:04 BoogieIcfgContainer [2021-11-23 04:23:04,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 04:23:04,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 04:23:04,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 04:23:04,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 04:23:04,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:15:55" (1/3) ... [2021-11-23 04:23:04,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b04ce70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:23:04, skipping insertion in model container [2021-11-23 04:23:04,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:16:03" (2/3) ... [2021-11-23 04:23:04,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b04ce70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:23:04, skipping insertion in model container [2021-11-23 04:23:04,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:23:04" (3/3) ... [2021-11-23 04:23:04,370 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 04:23:04,374 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 04:23:04,374 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2021-11-23 04:23:04,449 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 04:23:04,456 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 04:23:04,456 INFO L340 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2021-11-23 04:23:04,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 20523 states, 20288 states have (on average 1.3612480283911672) internal successors, (27617), 20384 states have internal predecessors, (27617), 87 states have call successors, (87), 62 states have call predecessors, (87), 62 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:23:04,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 04:23:04,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:23:04,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:23:04,654 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-23 04:23:04,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:23:04,661 INFO L85 PathProgramCache]: Analyzing trace with hash -702468733, now seen corresponding path program 1 times [2021-11-23 04:23:04,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:23:04,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034252493] [2021-11-23 04:23:04,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:04,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:23:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:05,794 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 04:23:05,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:23:05,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034252493] [2021-11-23 04:23:05,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034252493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:23:05,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:23:05,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:23:05,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644107060] [2021-11-23 04:23:05,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:23:05,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:23:05,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:23:05,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:23:05,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:23:05,863 INFO L87 Difference]: Start difference. First operand has 20523 states, 20288 states have (on average 1.3612480283911672) internal successors, (27617), 20384 states have internal predecessors, (27617), 87 states have call successors, (87), 62 states have call predecessors, (87), 62 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 04:23:06,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:23:06,839 INFO L93 Difference]: Finished difference Result 40851 states and 55423 transitions. [2021-11-23 04:23:06,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:23:06,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2021-11-23 04:23:06,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:23:06,942 INFO L225 Difference]: With dead ends: 40851 [2021-11-23 04:23:06,942 INFO L226 Difference]: Without dead ends: 19402 [2021-11-23 04:23:07,053 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 04:23:07,057 INFO L933 BasicCegarLoop]: 26558 mSDtfsCounter, 542 mSDsluCounter, 26535 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 53093 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 04:23:07,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 53093 Invalid, 37 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 04:23:07,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19402 states. [2021-11-23 04:23:07,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19402 to 19238. [2021-11-23 04:23:07,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19238 states, 19003 states have (on average 1.32968478661264) internal successors, (25268), 19099 states have internal predecessors, (25268), 87 states have call successors, (87), 62 states have call predecessors, (87), 62 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:23:07,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19238 states to 19238 states and 25442 transitions. [2021-11-23 04:23:07,581 INFO L78 Accepts]: Start accepts. Automaton has 19238 states and 25442 transitions. Word has length 13 [2021-11-23 04:23:07,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:23:07,581 INFO L470 AbstractCegarLoop]: Abstraction has 19238 states and 25442 transitions. [2021-11-23 04:23:07,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 04:23:07,583 INFO L276 IsEmpty]: Start isEmpty. Operand 19238 states and 25442 transitions. [2021-11-23 04:23:07,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 04:23:07,584 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:23:07,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:23:07,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 04:23:07,585 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-23 04:23:07,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:23:07,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1265523650, now seen corresponding path program 1 times [2021-11-23 04:23:07,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:23:07,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816127894] [2021-11-23 04:23:07,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:07,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:23:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:08,157 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 04:23:08,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:23:08,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816127894] [2021-11-23 04:23:08,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816127894] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:23:08,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:23:08,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:23:08,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182323622] [2021-11-23 04:23:08,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:23:08,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:23:08,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:23:08,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:23:08,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:23:08,159 INFO L87 Difference]: Start difference. First operand 19238 states and 25442 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 04:23:08,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:23:08,621 INFO L93 Difference]: Finished difference Result 38631 states and 51083 transitions. [2021-11-23 04:23:08,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:23:08,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-11-23 04:23:08,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:23:08,702 INFO L225 Difference]: With dead ends: 38631 [2021-11-23 04:23:08,702 INFO L226 Difference]: Without dead ends: 19404 [2021-11-23 04:23:08,753 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 04:23:08,754 INFO L933 BasicCegarLoop]: 25426 mSDtfsCounter, 195 mSDsluCounter, 25407 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 50833 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:23:08,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 50833 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:23:08,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19404 states. [2021-11-23 04:23:09,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19404 to 19237. [2021-11-23 04:23:09,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19237 states, 19002 states have (on average 1.3295442584991053) internal successors, (25264), 19098 states have internal predecessors, (25264), 87 states have call successors, (87), 62 states have call predecessors, (87), 62 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:23:09,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19237 states to 19237 states and 25438 transitions. [2021-11-23 04:23:09,154 INFO L78 Accepts]: Start accepts. Automaton has 19237 states and 25438 transitions. Word has length 15 [2021-11-23 04:23:09,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:23:09,154 INFO L470 AbstractCegarLoop]: Abstraction has 19237 states and 25438 transitions. [2021-11-23 04:23:09,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 04:23:09,155 INFO L276 IsEmpty]: Start isEmpty. Operand 19237 states and 25438 transitions. [2021-11-23 04:23:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 04:23:09,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:23:09,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:23:09,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 04:23:09,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-23 04:23:09,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:23:09,157 INFO L85 PathProgramCache]: Analyzing trace with hash 94935244, now seen corresponding path program 1 times [2021-11-23 04:23:09,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:23:09,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339999797] [2021-11-23 04:23:09,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:09,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:23:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:09,690 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 04:23:09,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:23:09,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339999797] [2021-11-23 04:23:09,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339999797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:23:09,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:23:09,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:23:09,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042059374] [2021-11-23 04:23:09,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:23:09,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:23:09,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:23:09,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:23:09,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:23:09,692 INFO L87 Difference]: Start difference. First operand 19237 states and 25438 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 04:23:10,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:23:10,218 INFO L93 Difference]: Finished difference Result 38442 states and 50827 transitions. [2021-11-23 04:23:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:23:10,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-11-23 04:23:10,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:23:10,287 INFO L225 Difference]: With dead ends: 38442 [2021-11-23 04:23:10,287 INFO L226 Difference]: Without dead ends: 19239 [2021-11-23 04:23:10,334 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 04:23:10,339 INFO L933 BasicCegarLoop]: 25419 mSDtfsCounter, 1 mSDsluCounter, 25399 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 50818 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 04:23:10,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 50818 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 04:23:10,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19239 states. [2021-11-23 04:23:10,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19239 to 19238. [2021-11-23 04:23:10,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19238 states, 19003 states have (on average 1.32952691680261) internal successors, (25265), 19099 states have internal predecessors, (25265), 87 states have call successors, (87), 62 states have call predecessors, (87), 62 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2021-11-23 04:23:10,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19238 states to 19238 states and 25439 transitions. [2021-11-23 04:23:10,699 INFO L78 Accepts]: Start accepts. Automaton has 19238 states and 25439 transitions. Word has length 16 [2021-11-23 04:23:10,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:23:10,700 INFO L470 AbstractCegarLoop]: Abstraction has 19238 states and 25439 transitions. [2021-11-23 04:23:10,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 04:23:10,700 INFO L276 IsEmpty]: Start isEmpty. Operand 19238 states and 25439 transitions. [2021-11-23 04:23:10,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 04:23:10,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:23:10,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:23:10,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 04:23:10,702 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-23 04:23:10,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:23:10,702 INFO L85 PathProgramCache]: Analyzing trace with hash -386053360, now seen corresponding path program 1 times [2021-11-23 04:23:10,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:23:10,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786434270] [2021-11-23 04:23:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:10,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:23:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:11,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:23:11,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:23:11,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786434270] [2021-11-23 04:23:11,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786434270] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 04:23:11,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350928341] [2021-11-23 04:23:11,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:11,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:11,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:23:11,286 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 04:23:11,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 04:23:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:14,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 6601 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 04:23:14,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 04:23:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 04:23:15,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 04:23:15,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350928341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:23:15,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 04:23:15,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 04:23:15,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092152287] [2021-11-23 04:23:15,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:23:15,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:23:15,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:23:15,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:23:15,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:15,083 INFO L87 Difference]: Start difference. First operand 19238 states and 25439 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 04:23:17,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:23:17,566 INFO L93 Difference]: Finished difference Result 57549 states and 76430 transitions. [2021-11-23 04:23:17,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:23:17,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2021-11-23 04:23:17,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:23:17,685 INFO L225 Difference]: With dead ends: 57549 [2021-11-23 04:23:17,685 INFO L226 Difference]: Without dead ends: 38363 [2021-11-23 04:23:17,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:17,773 INFO L933 BasicCegarLoop]: 25569 mSDtfsCounter, 25402 mSDsluCounter, 25189 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25402 SdHoareTripleChecker+Valid, 50758 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 04:23:17,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25402 Valid, 50758 Invalid, 374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 04:23:17,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38363 states. [2021-11-23 04:23:18,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38363 to 37905. [2021-11-23 04:23:18,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37905 states, 37521 states have (on average 1.3283494576370565) internal successors, (49841), 37628 states have internal predecessors, (49841), 174 states have call successors, (174), 124 states have call predecessors, (174), 124 states have return successors, (348), 164 states have call predecessors, (348), 174 states have call successors, (348) [2021-11-23 04:23:18,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37905 states to 37905 states and 50363 transitions. [2021-11-23 04:23:18,526 INFO L78 Accepts]: Start accepts. Automaton has 37905 states and 50363 transitions. Word has length 18 [2021-11-23 04:23:18,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:23:18,527 INFO L470 AbstractCegarLoop]: Abstraction has 37905 states and 50363 transitions. [2021-11-23 04:23:18,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 04:23:18,527 INFO L276 IsEmpty]: Start isEmpty. Operand 37905 states and 50363 transitions. [2021-11-23 04:23:18,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 04:23:18,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:23:18,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:23:18,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 04:23:18,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:18,740 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-23 04:23:18,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:23:18,740 INFO L85 PathProgramCache]: Analyzing trace with hash 917094774, now seen corresponding path program 1 times [2021-11-23 04:23:18,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:23:18,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248549972] [2021-11-23 04:23:18,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:18,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:23:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:19,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:23:19,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:23:19,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248549972] [2021-11-23 04:23:19,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248549972] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 04:23:19,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009099914] [2021-11-23 04:23:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:19,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:19,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:23:19,334 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 04:23:19,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 04:23:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:23,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 6602 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 04:23:23,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 04:23:23,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 04:23:23,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 04:23:23,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009099914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:23:23,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 04:23:23,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 04:23:23,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618015799] [2021-11-23 04:23:23,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:23:23,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:23:23,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:23:23,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:23:23,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:23,558 INFO L87 Difference]: Start difference. First operand 37905 states and 50363 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 04:23:25,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:23:25,328 INFO L93 Difference]: Finished difference Result 75758 states and 100989 transitions. [2021-11-23 04:23:25,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:23:25,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2021-11-23 04:23:25,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:23:25,453 INFO L225 Difference]: With dead ends: 75758 [2021-11-23 04:23:25,453 INFO L226 Difference]: Without dead ends: 37905 [2021-11-23 04:23:25,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:25,621 INFO L933 BasicCegarLoop]: 25248 mSDtfsCounter, 25319 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25319 SdHoareTripleChecker+Valid, 25248 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 04:23:25,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25319 Valid, 25248 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 04:23:25,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37905 states. [2021-11-23 04:23:26,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37905 to 37905. [2021-11-23 04:23:26,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37905 states, 37521 states have (on average 1.3237920098078408) internal successors, (49670), 37628 states have internal predecessors, (49670), 174 states have call successors, (174), 124 states have call predecessors, (174), 124 states have return successors, (348), 164 states have call predecessors, (348), 174 states have call successors, (348) [2021-11-23 04:23:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37905 states to 37905 states and 50192 transitions. [2021-11-23 04:23:26,522 INFO L78 Accepts]: Start accepts. Automaton has 37905 states and 50192 transitions. Word has length 19 [2021-11-23 04:23:26,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:23:26,523 INFO L470 AbstractCegarLoop]: Abstraction has 37905 states and 50192 transitions. [2021-11-23 04:23:26,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 04:23:26,523 INFO L276 IsEmpty]: Start isEmpty. Operand 37905 states and 50192 transitions. [2021-11-23 04:23:26,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 04:23:26,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:23:26,526 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] [2021-11-23 04:23:26,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 04:23:26,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:26,739 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-23 04:23:26,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:23:26,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1634837077, now seen corresponding path program 1 times [2021-11-23 04:23:26,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:23:26,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564961343] [2021-11-23 04:23:26,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:26,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:23:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:27,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:23:27,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:23:27,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564961343] [2021-11-23 04:23:27,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564961343] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 04:23:27,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567673594] [2021-11-23 04:23:27,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:27,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:27,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:23:27,310 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 04:23:27,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 04:23:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:31,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 6603 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 04:23:31,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 04:23:31,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 04:23:31,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 04:23:31,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567673594] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:23:31,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 04:23:31,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 04:23:31,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609913404] [2021-11-23 04:23:31,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:23:31,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:23:31,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:23:31,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:23:31,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:31,375 INFO L87 Difference]: Start difference. First operand 37905 states and 50192 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 04:23:32,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:23:32,845 INFO L93 Difference]: Finished difference Result 75758 states and 100648 transitions. [2021-11-23 04:23:32,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:23:32,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2021-11-23 04:23:32,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:23:33,102 INFO L225 Difference]: With dead ends: 75758 [2021-11-23 04:23:33,102 INFO L226 Difference]: Without dead ends: 37905 [2021-11-23 04:23:33,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:33,238 INFO L933 BasicCegarLoop]: 25162 mSDtfsCounter, 25232 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25232 SdHoareTripleChecker+Valid, 25162 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 04:23:33,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25232 Valid, 25162 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 04:23:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37905 states. [2021-11-23 04:23:33,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37905 to 37905. [2021-11-23 04:23:33,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37905 states, 37521 states have (on average 1.3192345619786252) internal successors, (49499), 37628 states have internal predecessors, (49499), 174 states have call successors, (174), 124 states have call predecessors, (174), 124 states have return successors, (348), 164 states have call predecessors, (348), 174 states have call successors, (348) [2021-11-23 04:23:34,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37905 states to 37905 states and 50021 transitions. [2021-11-23 04:23:34,058 INFO L78 Accepts]: Start accepts. Automaton has 37905 states and 50021 transitions. Word has length 20 [2021-11-23 04:23:34,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:23:34,059 INFO L470 AbstractCegarLoop]: Abstraction has 37905 states and 50021 transitions. [2021-11-23 04:23:34,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 04:23:34,059 INFO L276 IsEmpty]: Start isEmpty. Operand 37905 states and 50021 transitions. [2021-11-23 04:23:34,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 04:23:34,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:23:34,060 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] [2021-11-23 04:23:34,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 04:23:34,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:34,261 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-23 04:23:34,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:23:34,261 INFO L85 PathProgramCache]: Analyzing trace with hash 859803121, now seen corresponding path program 1 times [2021-11-23 04:23:34,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:23:34,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437850109] [2021-11-23 04:23:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:34,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:23:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:23:34,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:23:34,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437850109] [2021-11-23 04:23:34,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437850109] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 04:23:34,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257766358] [2021-11-23 04:23:34,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:34,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:34,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:23:34,870 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 04:23:34,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 04:23:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:38,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 6604 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 04:23:38,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 04:23:38,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 04:23:38,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 04:23:38,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257766358] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:23:38,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 04:23:38,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 04:23:38,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534272753] [2021-11-23 04:23:38,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:23:38,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:23:38,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:23:38,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:23:38,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:38,967 INFO L87 Difference]: Start difference. First operand 37905 states and 50021 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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 04:23:40,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:23:40,612 INFO L93 Difference]: Finished difference Result 75758 states and 100307 transitions. [2021-11-23 04:23:40,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:23:40,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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 21 [2021-11-23 04:23:40,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:23:40,742 INFO L225 Difference]: With dead ends: 75758 [2021-11-23 04:23:40,743 INFO L226 Difference]: Without dead ends: 37905 [2021-11-23 04:23:40,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:40,915 INFO L933 BasicCegarLoop]: 25076 mSDtfsCounter, 25145 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25145 SdHoareTripleChecker+Valid, 25076 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 04:23:40,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25145 Valid, 25076 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 04:23:40,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37905 states. [2021-11-23 04:23:41,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37905 to 37905. [2021-11-23 04:23:41,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37905 states, 37521 states have (on average 1.3146771141494096) internal successors, (49328), 37628 states have internal predecessors, (49328), 174 states have call successors, (174), 124 states have call predecessors, (174), 124 states have return successors, (348), 164 states have call predecessors, (348), 174 states have call successors, (348) [2021-11-23 04:23:41,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37905 states to 37905 states and 49850 transitions. [2021-11-23 04:23:41,901 INFO L78 Accepts]: Start accepts. Automaton has 37905 states and 49850 transitions. Word has length 21 [2021-11-23 04:23:41,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:23:41,901 INFO L470 AbstractCegarLoop]: Abstraction has 37905 states and 49850 transitions. [2021-11-23 04:23:41,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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 04:23:41,901 INFO L276 IsEmpty]: Start isEmpty. Operand 37905 states and 49850 transitions. [2021-11-23 04:23:41,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 04:23:41,903 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:23:41,904 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] [2021-11-23 04:23:41,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 04:23:42,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:42,106 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-23 04:23:42,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:23:42,106 INFO L85 PathProgramCache]: Analyzing trace with hash 884386886, now seen corresponding path program 1 times [2021-11-23 04:23:42,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:23:42,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734583748] [2021-11-23 04:23:42,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:42,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:23:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:42,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:23:42,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:23:42,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734583748] [2021-11-23 04:23:42,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734583748] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 04:23:42,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824210740] [2021-11-23 04:23:42,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:42,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:42,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:23:42,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 04:23:42,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 04:23:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:46,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 6605 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 04:23:46,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 04:23:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 04:23:46,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 04:23:46,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824210740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:23:46,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 04:23:46,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 04:23:46,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196717923] [2021-11-23 04:23:46,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:23:46,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:23:46,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:23:46,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:23:46,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:46,708 INFO L87 Difference]: Start difference. First operand 37905 states and 49850 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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 04:23:48,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:23:48,391 INFO L93 Difference]: Finished difference Result 75758 states and 99966 transitions. [2021-11-23 04:23:48,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:23:48,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2021-11-23 04:23:48,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:23:48,637 INFO L225 Difference]: With dead ends: 75758 [2021-11-23 04:23:48,638 INFO L226 Difference]: Without dead ends: 37905 [2021-11-23 04:23:48,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:48,768 INFO L933 BasicCegarLoop]: 24990 mSDtfsCounter, 25058 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25058 SdHoareTripleChecker+Valid, 24990 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 04:23:48,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25058 Valid, 24990 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 04:23:48,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37905 states. [2021-11-23 04:23:49,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37905 to 37905. [2021-11-23 04:23:49,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37905 states, 37521 states have (on average 1.310119666320194) internal successors, (49157), 37628 states have internal predecessors, (49157), 174 states have call successors, (174), 124 states have call predecessors, (174), 124 states have return successors, (348), 164 states have call predecessors, (348), 174 states have call successors, (348) [2021-11-23 04:23:49,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37905 states to 37905 states and 49679 transitions. [2021-11-23 04:23:49,801 INFO L78 Accepts]: Start accepts. Automaton has 37905 states and 49679 transitions. Word has length 22 [2021-11-23 04:23:49,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:23:49,801 INFO L470 AbstractCegarLoop]: Abstraction has 37905 states and 49679 transitions. [2021-11-23 04:23:49,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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 04:23:49,802 INFO L276 IsEmpty]: Start isEmpty. Operand 37905 states and 49679 transitions. [2021-11-23 04:23:49,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 04:23:49,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:23:49,802 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] [2021-11-23 04:23:49,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 04:23:50,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:50,003 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-23 04:23:50,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:23:50,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1646632556, now seen corresponding path program 1 times [2021-11-23 04:23:50,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:23:50,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566393819] [2021-11-23 04:23:50,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:50,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:23:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:50,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:23:50,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:23:50,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566393819] [2021-11-23 04:23:50,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566393819] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 04:23:50,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922683975] [2021-11-23 04:23:50,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:50,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:50,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:23:50,496 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 04:23:50,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 04:23:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:54,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 6606 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 04:23:54,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 04:23:54,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 04:23:54,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 04:23:54,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922683975] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:23:54,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 04:23:54,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 04:23:54,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619322272] [2021-11-23 04:23:54,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:23:54,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:23:54,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:23:54,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:23:54,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:54,982 INFO L87 Difference]: Start difference. First operand 37905 states and 49679 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 04:23:56,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:23:56,836 INFO L93 Difference]: Finished difference Result 75758 states and 99625 transitions. [2021-11-23 04:23:56,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:23:56,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2021-11-23 04:23:56,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:23:56,967 INFO L225 Difference]: With dead ends: 75758 [2021-11-23 04:23:56,967 INFO L226 Difference]: Without dead ends: 37905 [2021-11-23 04:23:57,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:23:57,119 INFO L933 BasicCegarLoop]: 24904 mSDtfsCounter, 24971 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24971 SdHoareTripleChecker+Valid, 24904 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 04:23:57,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24971 Valid, 24904 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 04:23:57,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37905 states. [2021-11-23 04:23:57,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37905 to 37905. [2021-11-23 04:23:57,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37905 states, 37521 states have (on average 1.3055622184909783) internal successors, (48986), 37628 states have internal predecessors, (48986), 174 states have call successors, (174), 124 states have call predecessors, (174), 124 states have return successors, (348), 164 states have call predecessors, (348), 174 states have call successors, (348) [2021-11-23 04:23:58,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37905 states to 37905 states and 49508 transitions. [2021-11-23 04:23:58,074 INFO L78 Accepts]: Start accepts. Automaton has 37905 states and 49508 transitions. Word has length 23 [2021-11-23 04:23:58,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:23:58,074 INFO L470 AbstractCegarLoop]: Abstraction has 37905 states and 49508 transitions. [2021-11-23 04:23:58,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 04:23:58,074 INFO L276 IsEmpty]: Start isEmpty. Operand 37905 states and 49508 transitions. [2021-11-23 04:23:58,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 04:23:58,075 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:23:58,075 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] [2021-11-23 04:23:58,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 04:23:58,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:58,279 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [vxge_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr1ASSERT_VIOLATIONERROR_FUNCTION, vxge_probeErr2ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-23 04:23:58,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:23:58,279 INFO L85 PathProgramCache]: Analyzing trace with hash -493406495, now seen corresponding path program 1 times [2021-11-23 04:23:58,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:23:58,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472581215] [2021-11-23 04:23:58,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:58,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:23:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:23:58,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:23:58,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:23:58,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472581215] [2021-11-23 04:23:58,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472581215] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 04:23:58,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170333811] [2021-11-23 04:23:58,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:23:58,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 04:23:58,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:23:58,914 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 04:23:58,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 04:24:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:24:02,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 6607 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 04:24:02,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 04:24:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 04:24:03,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 04:24:03,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170333811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:24:03,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 04:24:03,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 04:24:03,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823131679] [2021-11-23 04:24:03,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:24:03,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:24:03,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:24:03,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:24:03,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 04:24:03,158 INFO L87 Difference]: Start difference. First operand 37905 states and 49508 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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)