./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 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 43bed732c323fe40708c0d64bb60905c00a1c3c7d8f882023d821fe272dfa892 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:09:22,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:09:22,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:09:22,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:09:22,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:09:22,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:09:22,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:09:22,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:09:22,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:09:22,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:09:22,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:09:22,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:09:22,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:09:22,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:09:22,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:09:22,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:09:22,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:09:22,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:09:22,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:09:22,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:09:22,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:09:22,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:09:22,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:09:22,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:09:22,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:09:22,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:09:22,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:09:22,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:09:22,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:09:22,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:09:22,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:09:22,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:09:22,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:09:22,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:09:22,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:09:22,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:09:22,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:09:22,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:09:22,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:09:22,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:09:22,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:09:22,775 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 13:09:22,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:09:22,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:09:22,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:09:22,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:09:22,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:09:22,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:09:22,837 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:09:22,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:09:22,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:09:22,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:09:22,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:09:22,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:09:22,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:09:22,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:09:22,840 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:09:22,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:09:22,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:09:22,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:09:22,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:09:22,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:09:22,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:09:22,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:09:22,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:09:22,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:09:22,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:09:22,843 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:09:22,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:09:22,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:09:22,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:09:22,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43bed732c323fe40708c0d64bb60905c00a1c3c7d8f882023d821fe272dfa892 [2021-11-23 13:09:23,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:09:23,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:09:23,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:09:23,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:09:23,210 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:09:23,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 13:09:23,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/data/d346be858/c4d1abf93813482c89258615313a1c91/FLAG4ddfc4793 [2021-11-23 13:09:24,792 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:09:24,793 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 13:09:24,937 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/data/d346be858/c4d1abf93813482c89258615313a1c91/FLAG4ddfc4793 [2021-11-23 13:09:25,154 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/data/d346be858/c4d1abf93813482c89258615313a1c91 [2021-11-23 13:09:25,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:09:25,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:09:25,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:09:25,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:09:25,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:09:25,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:09:25" (1/1) ... [2021-11-23 13:09:25,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@751dbca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:25, skipping insertion in model container [2021-11-23 13:09:25,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:09:25" (1/1) ... [2021-11-23 13:09:25,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:09:25,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:09:36,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860429,860442] [2021-11-23 13:09:36,099 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860574,860587] [2021-11-23 13:09:36,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:09:36,191 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:09:37,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860429,860442] [2021-11-23 13:09:37,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i[860574,860587] [2021-11-23 13:09:37,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:09:37,904 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:09:37,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37 WrapperNode [2021-11-23 13:09:37,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:09:37,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:09:37,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:09:37,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:09:37,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37" (1/1) ... [2021-11-23 13:09:38,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37" (1/1) ... [2021-11-23 13:09:41,155 INFO L137 Inliner]: procedures = 823, calls = 7976, calls flagged for inlining = 1934, calls inlined = 9036, statements flattened = 109733 [2021-11-23 13:09:41,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:09:41,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:09:41,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:09:41,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:09:41,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37" (1/1) ... [2021-11-23 13:09:41,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37" (1/1) ... [2021-11-23 13:09:41,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37" (1/1) ... [2021-11-23 13:09:41,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37" (1/1) ... [2021-11-23 13:09:43,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37" (1/1) ... [2021-11-23 13:09:44,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37" (1/1) ... [2021-11-23 13:09:44,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37" (1/1) ... [2021-11-23 13:09:45,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:09:45,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:09:45,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:09:45,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:09:45,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37" (1/1) ... [2021-11-23 13:09:45,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:09:45,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:09:45,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:09:45,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:09:45,288 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_close [2021-11-23 13:09:45,288 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_close [2021-11-23 13:09:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_sw_reset [2021-11-23 13:09:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_sw_reset [2021-11-23 13:09:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_108 [2021-11-23 13:09:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_108 [2021-11-23 13:09:45,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_109 [2021-11-23 13:09:45,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_109 [2021-11-23 13:09:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_handle_link_down_ind [2021-11-23 13:09:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_handle_link_down_ind [2021-11-23 13:09:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_device_register [2021-11-23 13:09:45,290 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_device_register [2021-11-23 13:09:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_13_6 [2021-11-23 13:09:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_13_6 [2021-11-23 13:09:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_4_22 [2021-11-23 13:09:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_4_22 [2021-11-23 13:09:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure do_vxge_reset [2021-11-23 13:09:45,291 INFO L138 BoogieDeclarations]: Found implementation of procedure do_vxge_reset [2021-11-23 13:09:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_101 [2021-11-23 13:09:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_101 [2021-11-23 13:09:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_4_33 [2021-11-23 13:09:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_4_33 [2021-11-23 13:09:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_104 [2021-11-23 13:09:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_104 [2021-11-23 13:09:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_105 [2021-11-23 13:09:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_105 [2021-11-23 13:09:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_106 [2021-11-23 13:09:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_106 [2021-11-23 13:09:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_probe [2021-11-23 13:09:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_probe [2021-11-23 13:09:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:09:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_107 [2021-11-23 13:09:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_107 [2021-11-23 13:09:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_reset_all_vpaths [2021-11-23 13:09:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_reset_all_vpaths [2021-11-23 13:09:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_irq_register_17_2 [2021-11-23 13:09:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_irq_register_17_2 [2021-11-23 13:09:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:09:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-23 13:09:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-23 13:09:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-23 13:09:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-23 13:09:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:09:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 13:09:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 13:09:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-23 13:09:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-23 13:09:45,298 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_device_handle_link_up_ind [2021-11-23 13:09:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_device_handle_link_up_ind [2021-11-23 13:09:45,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:09:45,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:09:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_create [2021-11-23 13:09:45,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_create [2021-11-23 13:09:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 13:09:45,299 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 13:09:45,300 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_isr_napi [2021-11-23 13:09:45,300 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_isr_napi [2021-11-23 13:09:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:09:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 13:09:45,301 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_open [2021-11-23 13:09:45,302 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_open [2021-11-23 13:09:45,302 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_ring_replenish [2021-11-23 13:09:45,302 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_ring_replenish [2021-11-23 13:09:45,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_12_2 [2021-11-23 13:09:45,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_12_2 [2021-11-23 13:09:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_io_resume [2021-11-23 13:09:45,303 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_io_resume [2021-11-23 13:09:45,304 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_vpath_alarm_process [2021-11-23 13:09:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_vpath_alarm_process [2021-11-23 13:09:45,304 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_set_features [2021-11-23 13:09:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_set_features [2021-11-23 13:09:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:09:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_recover_from_reset [2021-11-23 13:09:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_recover_from_reset [2021-11-23 13:09:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_open [2021-11-23 13:09:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_open [2021-11-23 13:09:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_stop_18_2 [2021-11-23 13:09:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_stop_18_2 [2021-11-23 13:09:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_0_5 [2021-11-23 13:09:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_0_5 [2021-11-23 13:09:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_115 [2021-11-23 13:09:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_115 [2021-11-23 13:09:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_open_vpaths [2021-11-23 13:09:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_open_vpaths [2021-11-23 13:09:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_device_unregister [2021-11-23 13:09:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_device_unregister [2021-11-23 13:09:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_7_2 [2021-11-23 13:09:45,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_7_2 [2021-11-23 13:09:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_7 [2021-11-23 13:09:45,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_7 [2021-11-23 13:09:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_poll_vp_lockup [2021-11-23 13:09:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_poll_vp_lockup [2021-11-23 13:09:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:09:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 13:09:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 13:09:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 13:09:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 13:09:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_vpath_alarm_process [2021-11-23 13:09:45,311 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_vpath_alarm_process [2021-11-23 13:09:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_dummy_resourceless_instance_4 [2021-11-23 13:09:45,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_dummy_resourceless_instance_4 [2021-11-23 13:09:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-23 13:09:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-23 13:09:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-11-23 13:09:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-11-23 13:09:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_poll_vp_reset [2021-11-23 13:09:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_poll_vp_reset [2021-11-23 13:09:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 13:09:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 13:09:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_change_mtu [2021-11-23 13:09:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_change_mtu [2021-11-23 13:09:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_alarm_msix_handle [2021-11-23 13:09:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_alarm_msix_handle [2021-11-23 13:09:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_add_isr [2021-11-23 13:09:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_add_isr [2021-11-23 13:09:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 13:09:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_remove [2021-11-23 13:09:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_remove [2021-11-23 13:09:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure do_vxge_close [2021-11-23 13:09:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure do_vxge_close [2021-11-23 13:09:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_113 [2021-11-23 13:09:45,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_113 [2021-11-23 13:09:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 13:09:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-23 13:09:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-23 13:09:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_1_5 [2021-11-23 13:09:45,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_1_5 [2021-11-23 13:09:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_reset_vpath [2021-11-23 13:09:45,330 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_reset_vpath [2021-11-23 13:09:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_reset [2021-11-23 13:09:45,331 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_reset [2021-11-23 13:09:45,331 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_os_timer [2021-11-23 13:09:45,331 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_os_timer [2021-11-23 13:09:45,331 INFO L130 BoogieDeclarations]: Found specification of procedure __vxge_hw_ring_reset [2021-11-23 13:09:45,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __vxge_hw_ring_reset [2021-11-23 13:09:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure vxge_hw_device_begin_irq [2021-11-23 13:09:45,332 INFO L138 BoogieDeclarations]: Found implementation of procedure vxge_hw_device_begin_irq [2021-11-23 13:09:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_13_4 [2021-11-23 13:09:45,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_13_4 [2021-11-23 13:09:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 13:09:45,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 13:09:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:09:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 13:09:49,436 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:09:49,440 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:18:03,472 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 13:18:03,473 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L27505: #t~ret4625#1 := main_#res#1;assume { :end_inline_main } true; [2021-11-23 13:18:03,473 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 13:18:03,473 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 13:18:11,395 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:18:11,480 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:18:11,481 INFO L301 CfgBuilder]: Removed 162 assume(true) statements. [2021-11-23 13:18:11,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:18:11 BoogieIcfgContainer [2021-11-23 13:18:11,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:18:11,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:18:11,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:18:11,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:18:11,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:09:25" (1/3) ... [2021-11-23 13:18:11,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a440d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:18:11, skipping insertion in model container [2021-11-23 13:18:11,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:37" (2/3) ... [2021-11-23 13:18:11,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a440d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:18:11, skipping insertion in model container [2021-11-23 13:18:11,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:18:11" (3/3) ... [2021-11-23 13:18:11,508 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-neterion-vxge-vxge.cil.i [2021-11-23 13:18:11,513 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:18:11,514 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2021-11-23 13:18:11,644 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:18:11,655 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 13:18:11,655 INFO L340 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2021-11-23 13:18:11,974 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 13:18:11,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 13:18:11,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:18:11,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:18:11,981 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 13:18:11,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:18:11,988 INFO L85 PathProgramCache]: Analyzing trace with hash -702468733, now seen corresponding path program 1 times [2021-11-23 13:18:11,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:18:11,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078702436] [2021-11-23 13:18:11,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:12,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:18:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:18:13,238 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 13:18:13,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:18:13,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078702436] [2021-11-23 13:18:13,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078702436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:18:13,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:18:13,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:18:13,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196338376] [2021-11-23 13:18:13,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:18:13,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:18:13,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:18:13,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:18:13,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:18:13,332 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 13:18:14,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:18:14,936 INFO L93 Difference]: Finished difference Result 40851 states and 55423 transitions. [2021-11-23 13:18:14,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:18:14,939 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 13:18:14,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:18:15,080 INFO L225 Difference]: With dead ends: 40851 [2021-11-23 13:18:15,081 INFO L226 Difference]: Without dead ends: 19402 [2021-11-23 13:18:15,227 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 13:18:15,233 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 13:18:15,234 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 13:18:15,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19402 states. [2021-11-23 13:18:15,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19402 to 19238. [2021-11-23 13:18:15,925 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 13:18:16,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19238 states to 19238 states and 25442 transitions. [2021-11-23 13:18:16,064 INFO L78 Accepts]: Start accepts. Automaton has 19238 states and 25442 transitions. Word has length 13 [2021-11-23 13:18:16,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:18:16,065 INFO L470 AbstractCegarLoop]: Abstraction has 19238 states and 25442 transitions. [2021-11-23 13:18:16,065 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 13:18:16,067 INFO L276 IsEmpty]: Start isEmpty. Operand 19238 states and 25442 transitions. [2021-11-23 13:18:16,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 13:18:16,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:18:16,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:18:16,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:18:16,070 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 13:18:16,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:18:16,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1265523650, now seen corresponding path program 1 times [2021-11-23 13:18:16,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:18:16,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415096881] [2021-11-23 13:18:16,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:16,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:18:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:18:16,675 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 13:18:16,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:18:16,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415096881] [2021-11-23 13:18:16,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415096881] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:18:16,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:18:16,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:18:16,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873139534] [2021-11-23 13:18:16,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:18:16,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:18:16,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:18:16,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:18:16,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:18:16,679 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 13:18:17,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:18:17,698 INFO L93 Difference]: Finished difference Result 38631 states and 51083 transitions. [2021-11-23 13:18:17,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:18:17,699 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 13:18:17,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:18:17,851 INFO L225 Difference]: With dead ends: 38631 [2021-11-23 13:18:17,852 INFO L226 Difference]: Without dead ends: 19404 [2021-11-23 13:18:17,904 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 13:18:17,907 INFO L933 BasicCegarLoop]: 25426 mSDtfsCounter, 195 mSDsluCounter, 25407 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 50833 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:18:17,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 50833 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:18:17,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19404 states. [2021-11-23 13:18:18,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19404 to 19237. [2021-11-23 13:18:18,444 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 13:18:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19237 states to 19237 states and 25438 transitions. [2021-11-23 13:18:18,574 INFO L78 Accepts]: Start accepts. Automaton has 19237 states and 25438 transitions. Word has length 15 [2021-11-23 13:18:18,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:18:18,574 INFO L470 AbstractCegarLoop]: Abstraction has 19237 states and 25438 transitions. [2021-11-23 13:18:18,574 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 13:18:18,575 INFO L276 IsEmpty]: Start isEmpty. Operand 19237 states and 25438 transitions. [2021-11-23 13:18:18,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 13:18:18,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:18:18,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:18:18,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:18:18,579 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 13:18:18,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:18:18,580 INFO L85 PathProgramCache]: Analyzing trace with hash 94935244, now seen corresponding path program 1 times [2021-11-23 13:18:18,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:18:18,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446517123] [2021-11-23 13:18:18,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:18,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:18:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:18:19,232 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 13:18:19,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:18:19,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446517123] [2021-11-23 13:18:19,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446517123] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:18:19,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:18:19,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:18:19,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373497093] [2021-11-23 13:18:19,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:18:19,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:18:19,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:18:19,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:18:19,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:18:19,235 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 13:18:20,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:18:20,179 INFO L93 Difference]: Finished difference Result 38442 states and 50827 transitions. [2021-11-23 13:18:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:18:20,180 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 13:18:20,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:18:20,278 INFO L225 Difference]: With dead ends: 38442 [2021-11-23 13:18:20,278 INFO L226 Difference]: Without dead ends: 19239 [2021-11-23 13:18:20,333 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 13:18:20,338 INFO L933 BasicCegarLoop]: 25419 mSDtfsCounter, 1 mSDsluCounter, 25399 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 50818 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:18:20,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 50818 Invalid, 23 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:18:20,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19239 states. [2021-11-23 13:18:20,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19239 to 19238. [2021-11-23 13:18:20,844 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 13:18:20,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19238 states to 19238 states and 25439 transitions. [2021-11-23 13:18:20,948 INFO L78 Accepts]: Start accepts. Automaton has 19238 states and 25439 transitions. Word has length 16 [2021-11-23 13:18:20,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:18:20,949 INFO L470 AbstractCegarLoop]: Abstraction has 19238 states and 25439 transitions. [2021-11-23 13:18:20,949 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 13:18:20,949 INFO L276 IsEmpty]: Start isEmpty. Operand 19238 states and 25439 transitions. [2021-11-23 13:18:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 13:18:20,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:18:20,951 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 13:18:20,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 13:18:20,952 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 13:18:20,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:18:20,952 INFO L85 PathProgramCache]: Analyzing trace with hash -386053360, now seen corresponding path program 1 times [2021-11-23 13:18:20,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:18:20,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293273016] [2021-11-23 13:18:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:20,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:18:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:18:21,583 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 13:18:21,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:18:21,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293273016] [2021-11-23 13:18:21,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293273016] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:18:21,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426332770] [2021-11-23 13:18:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:21,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:18:21,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:18:21,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:18:21,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:18:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:18:25,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 4918 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:18:25,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:18:25,907 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 13:18:25,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:18:25,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426332770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:18:25,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:18:25,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 13:18:25,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958789840] [2021-11-23 13:18:25,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:18:25,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:18:25,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:18:25,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:18:25,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:18:25,909 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 13:18:28,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:18:28,718 INFO L93 Difference]: Finished difference Result 57549 states and 76430 transitions. [2021-11-23 13:18:28,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:18:28,718 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 13:18:28,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:18:28,905 INFO L225 Difference]: With dead ends: 57549 [2021-11-23 13:18:28,905 INFO L226 Difference]: Without dead ends: 38363 [2021-11-23 13:18:29,014 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 13:18:29,017 INFO L933 BasicCegarLoop]: 25569 mSDtfsCounter, 25402 mSDsluCounter, 25189 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:18:29,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25402 Valid, 50758 Invalid, 374 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 13:18:29,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38363 states. [2021-11-23 13:18:29,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38363 to 37905. [2021-11-23 13:18:29,981 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 13:18:30,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37905 states to 37905 states and 50363 transitions. [2021-11-23 13:18:30,138 INFO L78 Accepts]: Start accepts. Automaton has 37905 states and 50363 transitions. Word has length 18 [2021-11-23 13:18:30,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:18:30,139 INFO L470 AbstractCegarLoop]: Abstraction has 37905 states and 50363 transitions. [2021-11-23 13:18:30,139 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 13:18:30,139 INFO L276 IsEmpty]: Start isEmpty. Operand 37905 states and 50363 transitions. [2021-11-23 13:18:30,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 13:18:30,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:18:30,141 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 13:18:30,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:18:30,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:18:30,354 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 13:18:30,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:18:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash 917094774, now seen corresponding path program 1 times [2021-11-23 13:18:30,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:18:30,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646593273] [2021-11-23 13:18:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:30,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:18:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:18:30,927 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 13:18:30,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:18:30,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646593273] [2021-11-23 13:18:30,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646593273] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:18:30,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724033456] [2021-11-23 13:18:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:30,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:18:30,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:18:30,930 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:18:30,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:18:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:18:34,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 4919 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:18:34,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:18:35,054 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 13:18:35,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:18:35,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724033456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:18:35,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:18:35,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 13:18:35,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9846415] [2021-11-23 13:18:35,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:18:35,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:18:35,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:18:35,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:18:35,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:18:35,057 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 13:18:36,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:18:36,612 INFO L93 Difference]: Finished difference Result 75758 states and 100989 transitions. [2021-11-23 13:18:36,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:18:36,613 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 13:18:36,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:18:36,789 INFO L225 Difference]: With dead ends: 75758 [2021-11-23 13:18:36,790 INFO L226 Difference]: Without dead ends: 37905 [2021-11-23 13:18:37,031 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 13:18:37,032 INFO L933 BasicCegarLoop]: 25248 mSDtfsCounter, 25319 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25319 SdHoareTripleChecker+Valid, 25248 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:18:37,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25319 Valid, 25248 Invalid, 171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [85 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:18:37,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37905 states. [2021-11-23 13:18:38,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37905 to 37905. [2021-11-23 13:18:38,612 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 13:18:38,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37905 states to 37905 states and 50192 transitions. [2021-11-23 13:18:38,764 INFO L78 Accepts]: Start accepts. Automaton has 37905 states and 50192 transitions. Word has length 19 [2021-11-23 13:18:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:18:38,764 INFO L470 AbstractCegarLoop]: Abstraction has 37905 states and 50192 transitions. [2021-11-23 13:18:38,765 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 13:18:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 37905 states and 50192 transitions. [2021-11-23 13:18:38,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 13:18:38,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:18:38,766 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 13:18:38,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:18:38,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:18:38,982 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 13:18:38,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:18:38,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1634837077, now seen corresponding path program 1 times [2021-11-23 13:18:38,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:18:38,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892086974] [2021-11-23 13:18:38,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:38,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:18:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:18:39,584 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 13:18:39,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:18:39,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892086974] [2021-11-23 13:18:39,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892086974] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:18:39,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991345991] [2021-11-23 13:18:39,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:39,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:18:39,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:18:39,586 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:18:39,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:18:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:18:43,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 4920 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:18:43,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:18:43,648 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 13:18:43,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:18:43,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991345991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:18:43,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:18:43,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 13:18:43,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864014470] [2021-11-23 13:18:43,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:18:43,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:18:43,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:18:43,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:18:43,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:18:43,650 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 13:18:45,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:18:45,375 INFO L93 Difference]: Finished difference Result 75758 states and 100648 transitions. [2021-11-23 13:18:45,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:18:45,376 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 13:18:45,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:18:45,517 INFO L225 Difference]: With dead ends: 75758 [2021-11-23 13:18:45,518 INFO L226 Difference]: Without dead ends: 37905 [2021-11-23 13:18:45,841 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 13:18:45,842 INFO L933 BasicCegarLoop]: 25162 mSDtfsCounter, 25232 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:18:45,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25232 Valid, 25162 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 13:18:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37905 states. [2021-11-23 13:18:47,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37905 to 37905. [2021-11-23 13:18:47,408 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 13:18:47,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37905 states to 37905 states and 50021 transitions. [2021-11-23 13:18:47,555 INFO L78 Accepts]: Start accepts. Automaton has 37905 states and 50021 transitions. Word has length 20 [2021-11-23 13:18:47,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:18:47,555 INFO L470 AbstractCegarLoop]: Abstraction has 37905 states and 50021 transitions. [2021-11-23 13:18:47,556 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 13:18:47,556 INFO L276 IsEmpty]: Start isEmpty. Operand 37905 states and 50021 transitions. [2021-11-23 13:18:47,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 13:18:47,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:18:47,557 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 13:18:47,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:18:47,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:18:47,776 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 13:18:47,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:18:47,777 INFO L85 PathProgramCache]: Analyzing trace with hash 859803121, now seen corresponding path program 1 times [2021-11-23 13:18:47,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:18:47,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037249252] [2021-11-23 13:18:47,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:47,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:18:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:18:48,758 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 13:18:48,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:18:48,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037249252] [2021-11-23 13:18:48,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037249252] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:18:48,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795257547] [2021-11-23 13:18:48,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:48,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:18:48,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:18:48,762 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:18:48,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:18:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:18:52,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 4921 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:18:52,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:18:52,714 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 13:18:52,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:18:52,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795257547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:18:52,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:18:52,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-23 13:18:52,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347050469] [2021-11-23 13:18:52,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:18:52,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:18:52,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:18:52,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:18:52,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:18:52,716 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 13:18:54,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:18:54,410 INFO L93 Difference]: Finished difference Result 75758 states and 100307 transitions. [2021-11-23 13:18:54,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:18:54,410 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 13:18:54,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:18:54,562 INFO L225 Difference]: With dead ends: 75758 [2021-11-23 13:18:54,562 INFO L226 Difference]: Without dead ends: 37905 [2021-11-23 13:18:54,798 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 13:18:54,799 INFO L933 BasicCegarLoop]: 25076 mSDtfsCounter, 25145 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:18:54,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25145 Valid, 25076 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 13:18:54,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37905 states. [2021-11-23 13:18:56,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37905 to 37905. [2021-11-23 13:18:56,264 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 13:18:56,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37905 states to 37905 states and 49850 transitions. [2021-11-23 13:18:56,436 INFO L78 Accepts]: Start accepts. Automaton has 37905 states and 49850 transitions. Word has length 21 [2021-11-23 13:18:56,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:18:56,436 INFO L470 AbstractCegarLoop]: Abstraction has 37905 states and 49850 transitions. [2021-11-23 13:18:56,436 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 13:18:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand 37905 states and 49850 transitions. [2021-11-23 13:18:56,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 13:18:56,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:18:56,438 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 13:18:56,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:18:56,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00d37294-8d6d-462c-9a1b-0bfd2c2db70d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-23 13:18:56,666 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 13:18:56,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:18:56,667 INFO L85 PathProgramCache]: Analyzing trace with hash 884386886, now seen corresponding path program 1 times [2021-11-23 13:18:56,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:18:56,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627299770] [2021-11-23 13:18:56,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:18:56,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms