./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:13:51,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:13:51,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:13:51,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:13:51,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:13:51,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:13:51,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:13:51,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:13:51,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:13:51,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:13:51,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:13:51,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:13:51,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:13:51,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:13:51,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:13:51,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:13:51,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:13:51,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:13:51,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:13:51,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:13:51,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:13:51,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:13:51,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:13:51,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:13:51,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:13:51,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:13:51,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:13:51,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:13:51,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:13:51,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:13:51,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:13:51,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:13:51,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:13:51,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:13:51,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:13:51,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:13:51,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:13:51,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:13:51,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:13:51,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:13:51,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:13:51,651 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:13:51,685 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:13:51,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:13:51,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:13:51,687 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:13:51,688 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:13:51,688 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:13:51,688 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:13:51,689 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:13:51,689 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:13:51,689 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:13:51,690 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:13:51,690 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:13:51,691 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:13:51,691 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:13:51,691 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:13:51,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:13:51,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:13:51,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:13:51,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:13:51,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:13:51,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:13:51,694 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:13:51,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:13:51,695 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:13:51,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:13:51,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:13:51,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:13:51,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:13:51,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:13:51,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:13:51,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:13:51,698 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:13:51,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:13:51,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:13:51,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:13:51,699 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:13:51,699 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 [2021-11-07 01:13:51,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:13:52,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:13:52,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:13:52,025 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:13:52,026 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:13:52,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2021-11-07 01:13:52,096 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/data/f9f12bd6d/71d7a6000e42435abf8c0e4f5e33fc6b/FLAG7d04bd8e4 [2021-11-07 01:13:53,242 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:13:53,244 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2021-11-07 01:13:53,311 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/data/f9f12bd6d/71d7a6000e42435abf8c0e4f5e33fc6b/FLAG7d04bd8e4 [2021-11-07 01:13:53,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/data/f9f12bd6d/71d7a6000e42435abf8c0e4f5e33fc6b [2021-11-07 01:13:53,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:13:53,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:13:53,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:13:53,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:13:53,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:13:53,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:13:53" (1/1) ... [2021-11-07 01:13:53,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da2a0f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:53, skipping insertion in model container [2021-11-07 01:13:53,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:13:53" (1/1) ... [2021-11-07 01:13:53,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:13:53,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:13:55,519 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:55,636 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:55,730 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:55,765 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:55,766 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:55,808 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,258 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,258 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,259 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,260 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,427 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,429 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,436 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,456 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,457 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,466 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,468 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,477 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,479 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,506 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,568 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,571 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,573 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,576 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,577 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,579 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,588 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,610 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,640 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,652 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,688 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,695 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,716 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,748 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,757 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,769 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,788 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,799 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,799 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,800 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,802 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,803 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,804 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,804 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,806 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,806 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,807 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,808 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,809 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,809 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,810 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,811 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,820 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,832 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,861 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,870 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,878 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,894 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,901 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,910 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,936 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,937 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,945 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,946 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,955 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,956 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,968 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,971 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,973 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:56,980 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,036 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,047 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,087 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,097 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,107 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,130 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,166 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,167 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,167 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,626 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,642 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,643 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,643 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,644 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,645 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,647 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,658 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,659 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,659 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,694 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:57,707 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:58,664 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2021-11-07 01:13:58,673 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2021-11-07 01:13:58,674 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2021-11-07 01:13:58,675 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2021-11-07 01:13:58,711 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:58,712 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 01:13:58,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:13:58,802 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:13:58,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@20eb01d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:13:58, skipping insertion in model container [2021-11-07 01:13:58,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:13:58,803 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:13:58,810 INFO L168 Benchmark]: Toolchain (without parser) took 5368.38 ms. Allocated memory was 113.2 MB in the beginning and 159.4 MB in the end (delta: 46.1 MB). Free memory was 77.0 MB in the beginning and 70.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 53.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:13:58,811 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 66.4 MB in the beginning and 66.4 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:13:58,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5360.26 ms. Allocated memory was 113.2 MB in the beginning and 159.4 MB in the end (delta: 46.1 MB). Free memory was 76.7 MB in the beginning and 70.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 53.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:13:58,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 66.4 MB in the beginning and 66.4 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5360.26 ms. Allocated memory was 113.2 MB in the beginning and 159.4 MB in the end (delta: 46.1 MB). Free memory was 76.7 MB in the beginning and 70.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 53.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5930]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:14:01,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:14:01,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:14:01,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:14:01,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:14:01,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:14:01,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:14:01,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:14:01,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:14:01,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:14:01,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:14:01,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:14:01,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:14:01,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:14:01,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:14:01,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:14:01,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:14:01,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:14:01,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:14:01,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:14:01,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:14:01,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:14:01,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:14:01,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:14:01,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:14:01,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:14:01,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:14:01,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:14:01,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:14:01,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:14:01,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:14:01,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:14:01,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:14:01,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:14:01,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:14:01,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:14:01,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:14:01,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:14:01,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:14:01,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:14:01,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:14:01,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:14:01,747 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:14:01,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:14:01,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:14:01,749 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:14:01,750 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:14:01,750 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:14:01,750 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:14:01,750 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:14:01,750 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:14:01,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:14:01,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:14:01,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:14:01,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:14:01,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:14:01,754 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:14:01,755 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:14:01,755 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:14:01,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:14:01,755 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:14:01,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:14:01,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:14:01,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:14:01,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:14:01,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:14:01,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:14:01,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:14:01,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:14:01,757 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:14:01,758 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:14:01,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:14:01,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:14:01,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:14:01,759 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 [2021-11-07 01:14:02,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:14:02,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:14:02,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:14:02,243 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:14:02,244 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:14:02,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2021-11-07 01:14:02,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/data/33a315253/fc6d1798ed5a436a82fb90f25c5cc917/FLAG83023635a [2021-11-07 01:14:03,597 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:14:03,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2021-11-07 01:14:03,699 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/data/33a315253/fc6d1798ed5a436a82fb90f25c5cc917/FLAG83023635a [2021-11-07 01:14:03,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/data/33a315253/fc6d1798ed5a436a82fb90f25c5cc917 [2021-11-07 01:14:03,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:14:03,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:14:03,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:14:03,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:14:03,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:14:03,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:14:03" (1/1) ... [2021-11-07 01:14:03,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9009fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:03, skipping insertion in model container [2021-11-07 01:14:03,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:14:03" (1/1) ... [2021-11-07 01:14:03,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:14:04,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:14:08,985 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2021-11-07 01:14:08,990 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2021-11-07 01:14:08,991 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2021-11-07 01:14:08,992 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2021-11-07 01:14:09,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:14:09,191 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:14:09,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:14:09,902 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2021-11-07 01:14:09,904 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2021-11-07 01:14:09,905 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2021-11-07 01:14:09,905 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2021-11-07 01:14:09,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:14:09,950 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:14:10,625 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[428896,428909] [2021-11-07 01:14:10,625 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429065,429078] [2021-11-07 01:14:10,626 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429232,429245] [2021-11-07 01:14:10,626 WARN L228 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_050c542d-7a0a-4a28-8c55-5d427e0bf95f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i[429400,429413] [2021-11-07 01:14:10,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:14:11,016 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:14:11,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11 WrapperNode [2021-11-07 01:14:11,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:14:11,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:14:11,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:14:11,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:14:11,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11" (1/1) ... [2021-11-07 01:14:11,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11" (1/1) ... [2021-11-07 01:14:11,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:14:11,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:14:11,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:14:11,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:14:11,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11" (1/1) ... [2021-11-07 01:14:11,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11" (1/1) ... [2021-11-07 01:14:11,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11" (1/1) ... [2021-11-07 01:14:11,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11" (1/1) ... [2021-11-07 01:14:12,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11" (1/1) ... [2021-11-07 01:14:12,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11" (1/1) ... [2021-11-07 01:14:12,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11" (1/1) ... [2021-11-07 01:14:12,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:14:12,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:14:12,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:14:12,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:14:12,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11" (1/1) ... [2021-11-07 01:14:12,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:14:12,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:14:12,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:14:12,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:14:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:14:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 01:14:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:14:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 01:14:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 01:14:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:14:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:14:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 01:14:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 01:14:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 01:14:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 01:14:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 01:14:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:14:12,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:14:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:14:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:14:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:14:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 01:14:12,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 01:14:12,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 01:14:12,902 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 01:14:12,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:14:12,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:14:12,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:14:12,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:14:12,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:14:12,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:14:12,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:14:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 01:14:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 01:14:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 01:14:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 01:16:02,500 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0bv32; [2021-11-07 01:16:02,501 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 01:16:02,501 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 01:16:02,502 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 01:16:02,503 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-07 01:16:02,503 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 01:16:02,546 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:16:02,547 INFO L299 CfgBuilder]: Removed 4574 assume(true) statements. [2021-11-07 01:16:02,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:16:02 BoogieIcfgContainer [2021-11-07 01:16:02,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:16:02,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:16:02,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:16:02,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:16:02,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:14:03" (1/3) ... [2021-11-07 01:16:02,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afccb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:16:02, skipping insertion in model container [2021-11-07 01:16:02,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:11" (2/3) ... [2021-11-07 01:16:02,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afccb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:16:02, skipping insertion in model container [2021-11-07 01:16:02,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:16:02" (3/3) ... [2021-11-07 01:16:02,562 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2021-11-07 01:16:02,568 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:16:02,568 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2021-11-07 01:16:02,636 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:16:02,642 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=FINITE_AUTOMATA, 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 [2021-11-07 01:16:02,642 INFO L340 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2021-11-07 01:16:02,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 5290 states, 5229 states have (on average 1.4756167527251864) internal successors, (7716), 5289 states have internal predecessors, (7716), 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) [2021-11-07 01:16:02,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 01:16:02,756 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:02,757 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:02,758 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:16:02,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:02,763 INFO L85 PathProgramCache]: Analyzing trace with hash -605749184, now seen corresponding path program 1 times [2021-11-07 01:16:02,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:02,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545720479] [2021-11-07 01:16:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:02,788 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:02,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:02,791 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:02,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:16:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:05,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 1663 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:16:05,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:06,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:06,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:06,337 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:06,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545720479] [2021-11-07 01:16:06,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545720479] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:06,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:06,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:16:06,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108418846] [2021-11-07 01:16:06,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:16:06,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:06,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:16:06,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:16:06,374 INFO L87 Difference]: Start difference. First operand has 5290 states, 5229 states have (on average 1.4756167527251864) internal successors, (7716), 5289 states have internal predecessors, (7716), 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) Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2021-11-07 01:16:09,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:09,925 INFO L93 Difference]: Finished difference Result 17671 states and 25476 transitions. [2021-11-07 01:16:09,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:16:09,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 101 [2021-11-07 01:16:09,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:10,023 INFO L225 Difference]: With dead ends: 17671 [2021-11-07 01:16:10,024 INFO L226 Difference]: Without dead ends: 12208 [2021-11-07 01:16:10,047 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:16:10,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12208 states. [2021-11-07 01:16:10,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12208 to 12144. [2021-11-07 01:16:10,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12144 states, 12083 states have (on average 1.3338574857237442) internal successors, (16117), 12143 states have internal predecessors, (16117), 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) [2021-11-07 01:16:10,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12144 states to 12144 states and 16117 transitions. [2021-11-07 01:16:10,587 INFO L78 Accepts]: Start accepts. Automaton has 12144 states and 16117 transitions. Word has length 101 [2021-11-07 01:16:10,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:16:10,589 INFO L470 AbstractCegarLoop]: Abstraction has 12144 states and 16117 transitions. [2021-11-07 01:16:10,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2021-11-07 01:16:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 12144 states and 16117 transitions. [2021-11-07 01:16:10,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 01:16:10,598 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:10,601 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:10,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:16:10,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:16:10,826 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:16:10,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:10,827 INFO L85 PathProgramCache]: Analyzing trace with hash -568039115, now seen corresponding path program 1 times [2021-11-07 01:16:10,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:10,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792067783] [2021-11-07 01:16:10,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:10,831 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:10,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:10,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:10,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:16:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:13,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 1652 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:16:13,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:14,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:14,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:14,288 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:14,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792067783] [2021-11-07 01:16:14,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792067783] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:14,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:14,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:16:14,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484748280] [2021-11-07 01:16:14,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:16:14,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:14,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:16:14,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:16:14,296 INFO L87 Difference]: Start difference. First operand 12144 states and 16117 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2021-11-07 01:16:18,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:18,145 INFO L93 Difference]: Finished difference Result 46491 states and 61813 transitions. [2021-11-07 01:16:18,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:16:18,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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 101 [2021-11-07 01:16:18,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:18,307 INFO L225 Difference]: With dead ends: 46491 [2021-11-07 01:16:18,307 INFO L226 Difference]: Without dead ends: 34567 [2021-11-07 01:16:18,334 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:16:18,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34567 states. [2021-11-07 01:16:19,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34567 to 33447. [2021-11-07 01:16:19,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33447 states, 33386 states have (on average 1.3391241837896124) internal successors, (44708), 33446 states have internal predecessors, (44708), 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) [2021-11-07 01:16:19,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33447 states to 33447 states and 44708 transitions. [2021-11-07 01:16:19,737 INFO L78 Accepts]: Start accepts. Automaton has 33447 states and 44708 transitions. Word has length 101 [2021-11-07 01:16:19,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:16:19,740 INFO L470 AbstractCegarLoop]: Abstraction has 33447 states and 44708 transitions. [2021-11-07 01:16:19,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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) [2021-11-07 01:16:19,741 INFO L276 IsEmpty]: Start isEmpty. Operand 33447 states and 44708 transitions. [2021-11-07 01:16:19,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 01:16:19,748 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:19,748 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:19,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:16:19,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:16:19,961 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:16:19,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:19,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1713874760, now seen corresponding path program 1 times [2021-11-07 01:16:19,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:19,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145719976] [2021-11-07 01:16:19,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:19,965 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:19,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:19,968 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:19,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:16:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:23,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:16:23,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:23,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:23,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:23,977 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:23,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145719976] [2021-11-07 01:16:23,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145719976] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:23,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:23,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:16:23,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257104757] [2021-11-07 01:16:23,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:16:23,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:23,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:16:23,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:16:23,980 INFO L87 Difference]: Start difference. First operand 33447 states and 44708 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2021-11-07 01:16:28,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:28,256 INFO L93 Difference]: Finished difference Result 69650 states and 93219 transitions. [2021-11-07 01:16:28,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:16:28,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 113 [2021-11-07 01:16:28,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:28,360 INFO L225 Difference]: With dead ends: 69650 [2021-11-07 01:16:28,360 INFO L226 Difference]: Without dead ends: 36423 [2021-11-07 01:16:28,419 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:16:28,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36423 states. [2021-11-07 01:16:29,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36423 to 36235. [2021-11-07 01:16:29,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36235 states, 36174 states have (on average 1.3402996627411954) internal successors, (48484), 36234 states have internal predecessors, (48484), 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) [2021-11-07 01:16:29,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36235 states to 36235 states and 48484 transitions. [2021-11-07 01:16:29,897 INFO L78 Accepts]: Start accepts. Automaton has 36235 states and 48484 transitions. Word has length 113 [2021-11-07 01:16:29,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:16:29,899 INFO L470 AbstractCegarLoop]: Abstraction has 36235 states and 48484 transitions. [2021-11-07 01:16:29,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2021-11-07 01:16:29,899 INFO L276 IsEmpty]: Start isEmpty. Operand 36235 states and 48484 transitions. [2021-11-07 01:16:29,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-07 01:16:29,904 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:29,904 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:29,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:16:30,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:16:30,117 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:16:30,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:30,118 INFO L85 PathProgramCache]: Analyzing trace with hash -437347120, now seen corresponding path program 1 times [2021-11-07 01:16:30,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:30,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484537429] [2021-11-07 01:16:30,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:30,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:30,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:30,124 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:30,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:16:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:33,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 1714 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:16:33,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:33,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:33,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:16:33,629 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:33,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484537429] [2021-11-07 01:16:33,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484537429] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:33,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:33,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:16:33,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005444937] [2021-11-07 01:16:33,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:16:33,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:33,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:16:33,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:16:33,632 INFO L87 Difference]: Start difference. First operand 36235 states and 48484 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2021-11-07 01:16:37,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:37,859 INFO L93 Difference]: Finished difference Result 102223 states and 136986 transitions. [2021-11-07 01:16:37,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:16:37,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-11-07 01:16:37,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:37,996 INFO L225 Difference]: With dead ends: 102223 [2021-11-07 01:16:37,996 INFO L226 Difference]: Without dead ends: 68918 [2021-11-07 01:16:38,048 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:16:38,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68918 states. [2021-11-07 01:16:40,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68918 to 68854. [2021-11-07 01:16:40,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68854 states, 68793 states have (on average 1.3415754509906532) internal successors, (92291), 68853 states have internal predecessors, (92291), 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) [2021-11-07 01:16:40,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68854 states to 68854 states and 92291 transitions. [2021-11-07 01:16:40,541 INFO L78 Accepts]: Start accepts. Automaton has 68854 states and 92291 transitions. Word has length 129 [2021-11-07 01:16:40,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:16:40,541 INFO L470 AbstractCegarLoop]: Abstraction has 68854 states and 92291 transitions. [2021-11-07 01:16:40,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2021-11-07 01:16:40,542 INFO L276 IsEmpty]: Start isEmpty. Operand 68854 states and 92291 transitions. [2021-11-07 01:16:40,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-07 01:16:40,546 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:40,546 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:40,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:16:40,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:16:40,761 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:16:40,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:40,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1174600692, now seen corresponding path program 1 times [2021-11-07 01:16:40,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:40,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169614631] [2021-11-07 01:16:40,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:40,767 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:40,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:40,771 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:40,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:16:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:43,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:16:43,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:44,342 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:16:44,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:45,268 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:16:45,268 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:45,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169614631] [2021-11-07 01:16:45,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169614631] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:45,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:45,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:16:45,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332232569] [2021-11-07 01:16:45,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:16:45,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:45,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:16:45,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:16:45,271 INFO L87 Difference]: Start difference. First operand 68854 states and 92291 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2021-11-07 01:16:48,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:48,176 INFO L93 Difference]: Finished difference Result 68854 states and 92291 transitions. [2021-11-07 01:16:48,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:16:48,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-11-07 01:16:48,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:48,281 INFO L225 Difference]: With dead ends: 68854 [2021-11-07 01:16:48,281 INFO L226 Difference]: Without dead ends: 68848 [2021-11-07 01:16:48,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:16:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68848 states. [2021-11-07 01:16:50,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68848 to 68848. [2021-11-07 01:16:50,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68848 states, 68790 states have (on average 1.3415467364442506) internal successors, (92285), 68847 states have internal predecessors, (92285), 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) [2021-11-07 01:16:50,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68848 states to 68848 states and 92285 transitions. [2021-11-07 01:16:50,995 INFO L78 Accepts]: Start accepts. Automaton has 68848 states and 92285 transitions. Word has length 129 [2021-11-07 01:16:50,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:16:50,995 INFO L470 AbstractCegarLoop]: Abstraction has 68848 states and 92285 transitions. [2021-11-07 01:16:50,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2021-11-07 01:16:50,996 INFO L276 IsEmpty]: Start isEmpty. Operand 68848 states and 92285 transitions. [2021-11-07 01:16:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-07 01:16:51,003 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:16:51,004 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:16:51,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 01:16:51,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:16:51,225 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:16:51,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:16:51,225 INFO L85 PathProgramCache]: Analyzing trace with hash -784967625, now seen corresponding path program 1 times [2021-11-07 01:16:51,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:16:51,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439878216] [2021-11-07 01:16:51,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:16:51,227 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:16:51,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:16:51,228 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:16:51,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:16:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:16:53,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 1681 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:16:53,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:16:54,698 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:16:54,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:16:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:16:55,541 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:16:55,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439878216] [2021-11-07 01:16:55,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439878216] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:16:55,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:16:55,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:16:55,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264820265] [2021-11-07 01:16:55,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:16:55,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:16:55,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:16:55,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:16:55,544 INFO L87 Difference]: Start difference. First operand 68848 states and 92285 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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) [2021-11-07 01:16:58,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:16:58,332 INFO L93 Difference]: Finished difference Result 68848 states and 92285 transitions. [2021-11-07 01:16:58,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:16:58,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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 131 [2021-11-07 01:16:58,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:16:58,445 INFO L225 Difference]: With dead ends: 68848 [2021-11-07 01:16:58,445 INFO L226 Difference]: Without dead ends: 68842 [2021-11-07 01:16:58,458 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:16:58,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68842 states. [2021-11-07 01:17:01,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68842 to 68842. [2021-11-07 01:17:01,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68842 states, 68787 states have (on average 1.3415180193931993) internal successors, (92279), 68841 states have internal predecessors, (92279), 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) [2021-11-07 01:17:01,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68842 states to 68842 states and 92279 transitions. [2021-11-07 01:17:01,479 INFO L78 Accepts]: Start accepts. Automaton has 68842 states and 92279 transitions. Word has length 131 [2021-11-07 01:17:01,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:17:01,480 INFO L470 AbstractCegarLoop]: Abstraction has 68842 states and 92279 transitions. [2021-11-07 01:17:01,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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) [2021-11-07 01:17:01,480 INFO L276 IsEmpty]: Start isEmpty. Operand 68842 states and 92279 transitions. [2021-11-07 01:17:01,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-07 01:17:01,485 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:17:01,486 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:17:01,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:17:01,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:17:01,701 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:17:01,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:17:01,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1560523002, now seen corresponding path program 1 times [2021-11-07 01:17:01,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:17:01,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076450067] [2021-11-07 01:17:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:17:01,703 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:17:01,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:17:01,704 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:17:01,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:17:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:17:04,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1684 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:17:04,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:17:05,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:17:05,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:17:06,575 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:17:06,576 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:17:06,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2076450067] [2021-11-07 01:17:06,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2076450067] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:17:06,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:17:06,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:17:06,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099888905] [2021-11-07 01:17:06,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:17:06,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:17:06,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:17:06,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:17:06,579 INFO L87 Difference]: Start difference. First operand 68842 states and 92279 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 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) [2021-11-07 01:17:09,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:17:09,620 INFO L93 Difference]: Finished difference Result 68842 states and 92279 transitions. [2021-11-07 01:17:09,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:17:09,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 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 133 [2021-11-07 01:17:09,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:17:09,731 INFO L225 Difference]: With dead ends: 68842 [2021-11-07 01:17:09,731 INFO L226 Difference]: Without dead ends: 68836 [2021-11-07 01:17:09,745 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:17:09,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68836 states. [2021-11-07 01:17:12,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68836 to 68836. [2021-11-07 01:17:12,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68836 states, 68784 states have (on average 1.3414892998371715) internal successors, (92273), 68835 states have internal predecessors, (92273), 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) [2021-11-07 01:17:12,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68836 states to 68836 states and 92273 transitions. [2021-11-07 01:17:12,864 INFO L78 Accepts]: Start accepts. Automaton has 68836 states and 92273 transitions. Word has length 133 [2021-11-07 01:17:12,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:17:12,864 INFO L470 AbstractCegarLoop]: Abstraction has 68836 states and 92273 transitions. [2021-11-07 01:17:12,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 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) [2021-11-07 01:17:12,864 INFO L276 IsEmpty]: Start isEmpty. Operand 68836 states and 92273 transitions. [2021-11-07 01:17:12,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-07 01:17:12,869 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:17:12,870 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:17:12,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:17:13,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:17:13,085 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-07 01:17:13,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:17:13,085 INFO L85 PathProgramCache]: Analyzing trace with hash 719185469, now seen corresponding path program 1 times [2021-11-07 01:17:13,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:17:13,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441907152] [2021-11-07 01:17:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:17:13,087 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:17:13,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:17:13,089 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:17:13,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_050c542d-7a0a-4a28-8c55-5d427e0bf95f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:17:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:17:16,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 1687 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:17:16,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:17:17,042 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:17:17,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:17:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 01:17:17,895 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:17:17,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441907152] [2021-11-07 01:17:17,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441907152] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:17:17,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:17:17,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:17:17,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883477686] [2021-11-07 01:17:17,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:17:17,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:17:17,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:17:17,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:17:17,897 INFO L87 Difference]: Start difference. First operand 68836 states and 92273 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 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) [2021-11-07 01:17:21,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:17:21,072 INFO L93 Difference]: Finished difference Result 68836 states and 92273 transitions. [2021-11-07 01:17:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:17:21,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 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 135 [2021-11-07 01:17:21,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:17:21,170 INFO L225 Difference]: With dead ends: 68836 [2021-11-07 01:17:21,170 INFO L226 Difference]: Without dead ends: 68830 [2021-11-07 01:17:21,183 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:17:21,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68830 states.