./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 53879bee41b0f6496027fdf2ec25e7e086316c8ce4800f3fb76bfeda7e545810 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:18,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:18,245 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:30:18,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:18,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:18,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:18,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:18,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:18,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:18,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:18,305 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:18,306 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:18,306 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:18,308 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:30:18,309 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:18,309 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:18,310 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:30:18,310 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:30:18,310 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:18,311 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:30:18,312 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:30:18,312 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:30:18,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:18,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:18,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:30:18,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:18,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:18,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:18,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:18,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:18,318 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:18,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:18,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:18,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:18,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:18,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:18,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:18,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:18,321 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:30:18,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:30:18,322 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:18,322 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:18,322 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:18,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:18,323 INFO L153 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_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53879bee41b0f6496027fdf2ec25e7e086316c8ce4800f3fb76bfeda7e545810 [2023-11-23 21:30:18,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:18,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:18,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:18,667 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:18,668 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:18,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v7.c [2023-11-23 21:30:21,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:22,079 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:22,092 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v7.c [2023-11-23 21:30:22,109 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/data/53aa8bab7/bb6a7b14161c4c74bc2cd8a5564efa29/FLAG60da75ed4 [2023-11-23 21:30:22,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/data/53aa8bab7/bb6a7b14161c4c74bc2cd8a5564efa29 [2023-11-23 21:30:22,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:22,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:22,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:22,130 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:22,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:22,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebcc50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22, skipping insertion in model container [2023-11-23 21:30:22,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,192 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:22,363 WARN L240 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_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v7.c[1249,1262] [2023-11-23 21:30:22,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:22,510 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:22,522 WARN L240 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_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v7.c[1249,1262] [2023-11-23 21:30:22,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:22,607 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:22,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22 WrapperNode [2023-11-23 21:30:22,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:22,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:22,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:22,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:22,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,642 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,778 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 661 [2023-11-23 21:30:22,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:22,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:22,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:22,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:22,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,850 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:22,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:22,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:22,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:22,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (1/1) ... [2023-11-23 21:30:22,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:22,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:22,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:23,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:30:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:23,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:23,170 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:23,173 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:23,994 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:30:24,936 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:30:24,937 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:30:24,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:24 BoogieIcfgContainer [2023-11-23 21:30:24,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:30:24,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:30:24,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:30:24,947 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:30:24,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:22" (1/3) ... [2023-11-23 21:30:24,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c93f5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:24, skipping insertion in model container [2023-11-23 21:30:24,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:22" (2/3) ... [2023-11-23 21:30:24,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c93f5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:24, skipping insertion in model container [2023-11-23 21:30:24,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:24" (3/3) ... [2023-11-23 21:30:24,953 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.eq_sdp_v7.c [2023-11-23 21:30:24,975 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:30:24,975 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:30:25,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:30:25,047 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@65a41e01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:30:25,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:30:25,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-23 21:30:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:30:25,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:25,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:30:25,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:25,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:25,073 INFO L85 PathProgramCache]: Analyzing trace with hash 17514633, now seen corresponding path program 1 times [2023-11-23 21:30:25,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:25,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679636073] [2023-11-23 21:30:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:25,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:30:25,555 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:30:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:30:25,913 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:30:25,915 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:30:25,917 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:30:25,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:30:25,924 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:30:25,932 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:30:25,965 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-23 21:30:25,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:30:25 BoogieIcfgContainer [2023-11-23 21:30:25,986 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:30:25,987 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:30:25,987 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:30:25,987 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:30:25,988 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:24" (3/4) ... [2023-11-23 21:30:25,990 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:30:25,991 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:30:25,993 INFO L158 Benchmark]: Toolchain (without parser) took 3864.68ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 88.7MB in the beginning and 68.1MB in the end (delta: 20.7MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2023-11-23 21:30:25,993 INFO L158 Benchmark]: CDTParser took 1.21ms. Allocated memory is still 96.5MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:30:25,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.31ms. Allocated memory is still 136.3MB. Free memory was 88.7MB in the beginning and 69.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:30:25,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 169.99ms. Allocated memory is still 136.3MB. Free memory was 69.9MB in the beginning and 100.7MB in the end (delta: -30.8MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-11-23 21:30:25,995 INFO L158 Benchmark]: Boogie Preprocessor took 130.26ms. Allocated memory is still 186.6MB. Free memory was 152.5MB in the beginning and 148.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:30:25,998 INFO L158 Benchmark]: RCFGBuilder took 2007.83ms. Allocated memory is still 186.6MB. Free memory was 148.3MB in the beginning and 129.9MB in the end (delta: 18.4MB). Peak memory consumption was 82.2MB. Max. memory is 16.1GB. [2023-11-23 21:30:26,000 INFO L158 Benchmark]: TraceAbstraction took 1043.63ms. Allocated memory is still 186.6MB. Free memory was 128.9MB in the beginning and 69.1MB in the end (delta: 59.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-23 21:30:26,001 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 186.6MB. Free memory was 69.1MB in the beginning and 68.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:30:26,016 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21ms. Allocated memory is still 96.5MB. Free memory is still 45.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.31ms. Allocated memory is still 136.3MB. Free memory was 88.7MB in the beginning and 69.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 169.99ms. Allocated memory is still 136.3MB. Free memory was 69.9MB in the beginning and 100.7MB in the end (delta: -30.8MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 130.26ms. Allocated memory is still 186.6MB. Free memory was 152.5MB in the beginning and 148.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2007.83ms. Allocated memory is still 186.6MB. Free memory was 148.3MB in the beginning and 129.9MB in the end (delta: 18.4MB). Peak memory consumption was 82.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1043.63ms. Allocated memory is still 186.6MB. Free memory was 128.9MB in the beginning and 69.1MB in the end (delta: 59.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 186.6MB. Free memory was 69.1MB in the beginning and 68.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 117. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 8); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (8 - 1); [L29] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 1); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (1 - 1); [L32] const SORT_1 var_9 = 0; [L33] const SORT_5 var_22 = 0; [L34] const SORT_5 var_31 = 1; [L35] const SORT_1 var_109 = 1; [L37] SORT_1 input_2; [L38] SORT_1 input_3; [L39] SORT_1 input_4; [L40] SORT_5 input_6; [L41] SORT_5 input_7; [L42] SORT_5 input_8; [L43] SORT_5 input_35; [L44] SORT_5 input_37; [L45] SORT_5 input_39; [L46] SORT_5 input_51; [L48] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L48] SORT_1 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L49] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L49] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L50] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L50] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L51] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 [L51] SORT_5 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L52] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L52] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L53] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 [L53] SORT_5 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L54] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 [L54] SORT_5 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L55] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L55] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L56] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L57] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L58] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 [L58] SORT_5 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L59] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L59] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L60] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 [L60] SORT_5 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L61] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L61] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L62] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L62] SORT_1 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L63] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L63] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L64] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L64] SORT_1 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L65] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L65] SORT_1 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L66] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L66] SORT_1 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L67] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L67] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L69] SORT_1 init_11_arg_1 = var_9; [L70] state_10 = init_11_arg_1 [L71] SORT_1 init_13_arg_1 = var_9; [L72] state_12 = init_13_arg_1 [L73] SORT_1 init_19_arg_1 = var_9; [L74] state_18 = init_19_arg_1 [L75] SORT_5 init_24_arg_1 = var_22; [L76] state_23 = init_24_arg_1 [L77] SORT_1 init_27_arg_1 = var_9; [L78] state_26 = init_27_arg_1 [L79] SORT_5 init_42_arg_1 = var_22; [L80] state_41 = init_42_arg_1 [L81] SORT_5 init_44_arg_1 = var_22; [L82] state_43 = init_44_arg_1 [L83] SORT_1 init_46_arg_1 = var_9; [L84] state_45 = init_46_arg_1 [L85] SORT_1 init_48_arg_1 = var_9; [L86] state_47 = init_48_arg_1 [L87] SORT_1 init_50_arg_1 = var_9; [L88] state_49 = init_50_arg_1 [L89] SORT_5 init_54_arg_1 = var_22; [L90] state_53 = init_54_arg_1 [L91] SORT_1 init_56_arg_1 = var_9; [L92] state_55 = init_56_arg_1 [L93] SORT_5 init_58_arg_1 = var_22; [L94] state_57 = init_58_arg_1 [L95] SORT_1 init_60_arg_1 = var_9; [L96] state_59 = init_60_arg_1 [L97] SORT_1 init_63_arg_1 = var_9; [L98] state_62 = init_63_arg_1 [L99] SORT_1 init_65_arg_1 = var_9; [L100] state_64 = init_65_arg_1 [L101] SORT_1 init_67_arg_1 = var_9; [L102] state_66 = init_67_arg_1 [L103] SORT_1 init_69_arg_1 = var_9; [L104] state_68 = init_69_arg_1 [L105] SORT_1 init_71_arg_1 = var_9; [L106] state_70 = init_71_arg_1 [L107] SORT_1 init_73_arg_1 = var_9; [L108] state_72 = init_73_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, init_27_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_67_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, mask_SORT_1=255, mask_SORT_5=1, msb_SORT_1=128, msb_SORT_5=1, state_10=0, state_12=0, state_18=0, state_23=0, state_26=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_53=0, state_55=0, state_57=0, state_59=0, state_62=0, state_64=0, state_66=0, state_68=0, state_70=0, state_72=0, var_109=1, var_22=0, var_31=1, var_9=0] [L111] input_2 = __VERIFIER_nondet_uchar() [L112] input_3 = __VERIFIER_nondet_uchar() [L113] input_4 = __VERIFIER_nondet_uchar() [L114] input_6 = __VERIFIER_nondet_uchar() [L115] input_7 = __VERIFIER_nondet_uchar() [L116] input_8 = __VERIFIER_nondet_uchar() [L117] EXPR input_8 & mask_SORT_5 [L117] input_8 = input_8 & mask_SORT_5 [L118] input_35 = __VERIFIER_nondet_uchar() [L119] input_37 = __VERIFIER_nondet_uchar() [L120] input_39 = __VERIFIER_nondet_uchar() [L121] input_51 = __VERIFIER_nondet_uchar() [L124] SORT_1 var_16_arg_0 = state_10; [L125] SORT_5 var_16 = var_16_arg_0 >> 0; [L126] EXPR var_16 & mask_SORT_5 [L126] var_16 = var_16 & mask_SORT_5 [L127] SORT_1 var_15_arg_0 = state_10; [L128] SORT_1 var_15_arg_1 = state_12; [L129] SORT_1 var_15 = var_15_arg_0 + var_15_arg_1; [L130] SORT_1 var_14_arg_0 = state_10; [L131] SORT_1 var_14_arg_1 = state_12; [L132] SORT_1 var_14 = var_14_arg_0 - var_14_arg_1; [L133] SORT_5 var_17_arg_0 = var_16; [L134] SORT_1 var_17_arg_1 = var_15; [L135] SORT_1 var_17_arg_2 = var_14; [L136] SORT_1 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L137] SORT_1 var_21_arg_0 = var_17; [L138] SORT_1 var_21_arg_1 = state_18; [L139] SORT_1 var_21 = var_21_arg_0 + var_21_arg_1; [L140] SORT_1 var_20_arg_0 = var_17; [L141] SORT_1 var_20_arg_1 = state_18; [L142] SORT_1 var_20 = var_20_arg_0 - var_20_arg_1; [L143] SORT_5 var_25_arg_0 = state_23; [L144] SORT_1 var_25_arg_1 = var_21; [L145] SORT_1 var_25_arg_2 = var_20; [L146] SORT_1 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L147] EXPR var_25 & mask_SORT_1 [L147] var_25 = var_25 & mask_SORT_1 [L148] SORT_1 var_28_arg_0 = var_25; [L149] SORT_1 var_28_arg_1 = state_26; [L150] SORT_5 var_28 = var_28_arg_0 == var_28_arg_1; [L151] SORT_5 var_32_arg_0 = var_28; [L152] SORT_5 var_32 = ~var_32_arg_0; [L153] SORT_5 var_33_arg_0 = var_31; [L154] SORT_5 var_33_arg_1 = var_32; [L155] EXPR var_33_arg_0 & var_33_arg_1 [L155] SORT_5 var_33 = var_33_arg_0 & var_33_arg_1; [L156] EXPR var_33 & mask_SORT_5 [L156] var_33 = var_33 & mask_SORT_5 [L157] SORT_5 bad_34_arg_0 = var_33; [L158] CALL __VERIFIER_assert(!(bad_34_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:30:26,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 53879bee41b0f6496027fdf2ec25e7e086316c8ce4800f3fb76bfeda7e545810 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:28,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:29,022 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-23 21:30:29,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:29,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:29,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:29,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:29,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:29,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:29,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:29,087 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:29,087 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:29,088 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:29,090 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:29,090 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:29,091 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:29,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:29,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:29,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:29,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:29,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:29,094 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:29,095 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:30:29,095 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:30:29,096 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:30:29,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:29,097 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:29,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:29,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:30:29,098 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:29,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:29,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:29,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:29,101 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:29,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:29,101 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:30:29,102 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:30:29,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:29,102 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:29,103 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:29,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:29,104 INFO L153 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_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53879bee41b0f6496027fdf2ec25e7e086316c8ce4800f3fb76bfeda7e545810 [2023-11-23 21:30:29,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:29,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:29,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:29,564 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:29,565 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:29,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v7.c [2023-11-23 21:30:32,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:32,974 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:32,974 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v7.c [2023-11-23 21:30:32,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/data/097303b56/e2ccff11ffb44a0bae79536fe5f3758a/FLAG2e7783202 [2023-11-23 21:30:32,998 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/data/097303b56/e2ccff11ffb44a0bae79536fe5f3758a [2023-11-23 21:30:33,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:33,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:33,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:33,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:33,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:33,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:32" (1/1) ... [2023-11-23 21:30:33,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9822a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33, skipping insertion in model container [2023-11-23 21:30:33,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:32" (1/1) ... [2023-11-23 21:30:33,064 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:33,276 WARN L240 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_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v7.c[1249,1262] [2023-11-23 21:30:33,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:33,457 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:33,475 WARN L240 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_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.eq_sdp_v7.c[1249,1262] [2023-11-23 21:30:33,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:33,584 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:33,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33 WrapperNode [2023-11-23 21:30:33,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:33,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:33,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:33,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:33,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (1/1) ... [2023-11-23 21:30:33,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (1/1) ... [2023-11-23 21:30:33,710 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 361 [2023-11-23 21:30:33,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:33,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:33,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:33,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:33,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (1/1) ... [2023-11-23 21:30:33,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (1/1) ... [2023-11-23 21:30:33,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (1/1) ... [2023-11-23 21:30:33,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (1/1) ... [2023-11-23 21:30:33,787 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (1/1) ... [2023-11-23 21:30:33,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (1/1) ... [2023-11-23 21:30:33,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (1/1) ... [2023-11-23 21:30:33,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (1/1) ... [2023-11-23 21:30:33,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:33,819 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:33,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:33,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:33,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (1/1) ... [2023-11-23 21:30:33,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:33,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:33,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:33,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:33,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:33,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:30:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:34,086 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:34,088 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:34,535 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:30:34,596 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:30:34,596 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:30:34,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:34 BoogieIcfgContainer [2023-11-23 21:30:34,597 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:30:34,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:30:34,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:30:34,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:30:34,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:32" (1/3) ... [2023-11-23 21:30:34,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae08a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:34, skipping insertion in model container [2023-11-23 21:30:34,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:33" (2/3) ... [2023-11-23 21:30:34,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae08a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:34, skipping insertion in model container [2023-11-23 21:30:34,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:34" (3/3) ... [2023-11-23 21:30:34,608 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.eq_sdp_v7.c [2023-11-23 21:30:34,653 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:30:34,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:30:34,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:30:34,718 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@105e61fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:30:34,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:30:34,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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) [2023-11-23 21:30:34,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:30:34,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:34,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:30:34,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:34,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-23 21:30:34,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:34,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389847023] [2023-11-23 21:30:34,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:34,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:34,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:34,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:34,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:30:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:34,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-23 21:30:34,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:35,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:35,554 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:35,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389847023] [2023-11-23 21:30:35,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389847023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:35,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:35,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:35,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460062594] [2023-11-23 21:30:35,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:35,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:30:35,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:30:35,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:30:35,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:30:35,602 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-23 21:30:35,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:35,688 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-23 21:30:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:30:35,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-23 21:30:35,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:35,697 INFO L225 Difference]: With dead ends: 16 [2023-11-23 21:30:35,698 INFO L226 Difference]: Without dead ends: 9 [2023-11-23 21:30:35,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:30:35,705 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:35,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:30:35,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-23 21:30:35,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-23 21:30:35,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2023-11-23 21:30:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-23 21:30:35,735 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-23 21:30:35,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:35,736 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-23 21:30:35,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-23 21:30:35,736 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-23 21:30:35,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 21:30:35,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:35,737 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-23 21:30:35,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:35,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:35,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:35,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:35,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-23 21:30:35,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:35,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605744459] [2023-11-23 21:30:35,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:35,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:35,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:35,945 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:35,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:30:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:36,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 86 conjunts are in the unsatisfiable core [2023-11-23 21:30:36,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:37,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:37,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:30:43,435 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse38 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_64~0#1|)))) (.cse37 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_5~0#1|))) (let ((.cse17 (= ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_31~0#1|) ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_8~0#1|))) (.cse3 (forall ((|v_ULTIMATE.start_main_~var_33_arg_0~0#1_13| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_33_arg_0~0#1_13|) (_ bv255 32)))) .cse37)) (_ bv0 8)))) (.cse7 (forall ((|v_ULTIMATE.start_main_~var_33_arg_0~0#1_13| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_33_arg_0~0#1_13|) (_ bv254 32)))) .cse37)) (_ bv0 8)))) (.cse4 (bvneg ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_72~0#1|))))) (.cse16 (= ((_ extract 7 0) (bvand .cse37 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_43~0#1|))))) (_ bv0 8))) (.cse1 (= ((_ extract 7 0) (bvand .cse37 ((_ zero_extend 24) ((_ extract 7 0) .cse38)))) (_ bv0 8)))) (let ((.cse13 (not .cse1)) (.cse2 (not .cse16)) (.cse11 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse38 (bvneg ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_68~0#1|))))))))))))))) (.cse0 (or (not .cse17) (let ((.cse34 (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_22~0#1|))) .cse37)) (_ bv0 8))) (.cse24 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_9~0#1|))))) (let ((.cse31 (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse24)) .cse37)) (_ bv0 8))) (.cse30 (or .cse34 (and (or (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse35 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse35))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_13|))) .cse35)))))) .cse3) (or .cse7 (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse36 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse36))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_13|))) .cse36))))))))))) (.cse28 (bvneg .cse24)) (.cse29 (not .cse34))) (and (or (and (or (let ((.cse26 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse28 .cse24))))) .cse28))))))) (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse25 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse25))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse26 .cse25))))))) .cse7) (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse27 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse27))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse26 .cse27)))))) .cse3))) .cse29) .cse30) (not .cse31)) (or .cse31 (and .cse30 (or (and (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse32 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse32))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|))) .cse28)))))))))))) (or (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse33 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse33))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse33 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|))) .cse28)))))))))))) .cse7)) .cse29)))))))) (.cse18 (= |c_ULTIMATE.start_main_~state_57~0#1| (_ bv0 8)))) (and (or (and .cse0 (or (let ((.cse6 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_59~0#1|) (bvneg ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_55~0#1|))))))))))) (let ((.cse9 (or (and (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse14 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 .cse14))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_13|))) .cse14))))))) (or .cse7 (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse15 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 .cse15))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_13|))) .cse15))))))))) .cse16))) (and (or .cse1 (and (or .cse2 (and (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse5 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|)))))))) .cse5))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 .cse5))))))) (or .cse7 (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse8 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|)))))))) .cse8))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 .cse8)))))))))) .cse9)) (or (and .cse9 (or (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse10 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 .cse10))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 .cse10))))))) .cse7) (or .cse3 (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse12 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 .cse12))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 .cse12)))))))) .cse2)) .cse13)))) .cse17)) (not .cse18)) (or (and (or .cse17 (let ((.cse21 (or (and .cse3 .cse7) .cse16))) (and (or .cse1 (and (or .cse2 (and (or .cse7 (forall ((|v_ULTIMATE.start_main_~var_87_arg_1~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse19 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|)))))))) .cse19))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_87_arg_1~0#1_13|))))) .cse19)))))))) (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_87_arg_1~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse20 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|)))))))) .cse20))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_87_arg_1~0#1_13|))))) .cse20))))))))) .cse21)) (or .cse13 (and (or .cse2 (and (or (forall ((|v_ULTIMATE.start_main_~var_87_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse22 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_87_arg_1~0#1_13|))))) .cse22))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 .cse22))))))) .cse7) (or (forall ((|v_ULTIMATE.start_main_~var_87_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse23 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_87_arg_1~0#1_13|))))) .cse23))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse11 .cse23)))))) .cse3))) .cse21))))) .cse0) .cse18))))) is different from false [2023-11-23 21:30:51,743 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse39 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_64~0#1|)))) (.cse37 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_5~0#1|))) (let ((.cse2 (forall ((|v_ULTIMATE.start_main_~var_33_arg_0~0#1_13| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_33_arg_0~0#1_13|) (_ bv255 32)))) .cse37)) (_ bv0 8)))) (.cse6 (forall ((|v_ULTIMATE.start_main_~var_33_arg_0~0#1_13| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_33_arg_0~0#1_13|) (_ bv254 32)))) .cse37)) (_ bv0 8)))) (.cse38 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_31~0#1|)) (.cse3 (bvneg ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_72~0#1|))))) (.cse15 (= ((_ extract 7 0) (bvand .cse37 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_43~0#1|))))) (_ bv0 8))) (.cse0 (= ((_ extract 7 0) (bvand .cse37 ((_ zero_extend 24) ((_ extract 7 0) .cse39)))) (_ bv0 8)))) (let ((.cse12 (not .cse0)) (.cse1 (not .cse15)) (.cse10 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse39 (bvneg ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_68~0#1|))))))))))))))) (.cse16 (forall ((|v_ULTIMATE.start_main_#t~nondet29#1_15| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet29#1_15|) .cse37))) .cse38))) (.cse17 (or (let ((.cse34 (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_22~0#1|))) .cse37)) (_ bv0 8))) (.cse24 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_9~0#1|))))) (let ((.cse31 (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse24)) .cse37)) (_ bv0 8))) (.cse30 (or .cse34 (and (or (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse35 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse35))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_13|))) .cse35)))))) .cse2) (or .cse6 (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse36 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse36))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_13|))) .cse36))))))))))) (.cse28 (bvneg .cse24)) (.cse29 (not .cse34))) (and (or (and (or (let ((.cse26 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse28 .cse24))))) .cse28))))))) (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse25 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse25))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse26 .cse25))))))) .cse6) (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse27 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse27))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse26 .cse27)))))) .cse2))) .cse29) .cse30) (not .cse31)) (or .cse31 (and .cse30 (or (and (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse32 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse32))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse32 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|))) .cse28)))))))))))) (or (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse33 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse24 .cse33))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse33 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|))) .cse28)))))))))))) .cse6)) .cse29)))))) (forall ((|v_ULTIMATE.start_main_#t~nondet29#1_15| (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet29#1_15|) .cse37))) .cse38))))) (.cse18 (= |c_ULTIMATE.start_main_~state_57~0#1| (_ bv0 8)))) (and (or (and (or (let ((.cse5 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_59~0#1|) (bvneg ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_55~0#1|))))))))))) (let ((.cse8 (or (and (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse13 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 .cse13))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_13|))) .cse13))))))) (or .cse6 (forall ((|v_ULTIMATE.start_main_~var_25_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse14 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 .cse14))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_25_arg_1~0#1_13|))) .cse14))))))))) .cse15))) (and (or .cse0 (and (or .cse1 (and (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse4 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|)))))))) .cse4))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 .cse4))))))) (or .cse6 (forall ((|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse7 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|)))))))) .cse7))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 .cse7)))))))))) .cse8)) (or (and .cse8 (or (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse9 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 .cse9))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 .cse9))))))) .cse6) (or .cse2 (forall ((|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse11 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse5 .cse11))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 .cse11)))))))) .cse1)) .cse12)))) .cse16) .cse17) (not .cse18)) (or (and (or (let ((.cse21 (or (and .cse2 .cse6) .cse15))) (and (or .cse0 (and (or .cse1 (and (or .cse6 (forall ((|v_ULTIMATE.start_main_~var_87_arg_1~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse19 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|)))))))) .cse19))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_87_arg_1~0#1_13|))))) .cse19)))))))) (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_87_arg_1~0#1_13| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_17_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse20 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_1~0#1_13|)))))))) .cse20))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_87_arg_1~0#1_13|))))) .cse20))))))))) .cse21)) (or .cse12 (and (or .cse1 (and (or (forall ((|v_ULTIMATE.start_main_~var_87_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (not (let ((.cse22 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_87_arg_1~0#1_13|))))) .cse22))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 .cse22))))))) .cse6) (or (forall ((|v_ULTIMATE.start_main_~var_87_arg_1~0#1_13| (_ BitVec 8)) (|ULTIMATE.start_main_~mask_SORT_1~0#1| (_ BitVec 8))) (let ((.cse23 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_87_arg_1~0#1_13|))))) .cse23))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse10 .cse23)))))) .cse2))) .cse21)))) .cse16) .cse17) .cse18))))) is different from false [2023-11-23 21:30:51,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-11-23 21:30:51,786 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:51,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605744459] [2023-11-23 21:30:51,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605744459] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:30:51,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [991302961] [2023-11-23 21:30:51,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:51,788 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:30:51,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:30:51,829 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:30:51,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 21:30:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:52,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 94 conjunts are in the unsatisfiable core [2023-11-23 21:30:52,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:54,385 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:31:11,195 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-11-23 21:31:11,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2023-11-23 21:31:11,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2023-11-23 21:31:11,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581445469] [2023-11-23 21:31:11,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:11,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:31:11,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:31:11,199 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:31:11,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:31:11,265 FATAL L? ?]: Ignoring exception! java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@41fae538 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramVarUtils.constructConstantForAuxVar(ProgramVarUtils.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.computeClosedFormula(UnmodifiableTransFormula.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.(UnmodifiableTransFormula.java:90) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:320) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.decoupleArrayValues(TransFormulaUtils.java:1297) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:387) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-23 21:31:11,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:31:11,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-23 21:31:11,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266196923] [2023-11-23 21:31:11,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:31:11,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:31:11,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:11,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:31:11,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=55, Unknown=2, NotChecked=30, Total=110 [2023-11-23 21:31:11,273 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:31:11,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:31:11,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=23, Invalid=55, Unknown=2, NotChecked=30, Total=110 [2023-11-23 21:31:11,276 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:11,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:31:11,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:11,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-23 21:31:11,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:11,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c979ca24-0486-4f6f-be8e-bd7a6123c1b9/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:11,897 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@41fae538 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:460) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:104) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:73) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-23 21:31:11,900 INFO L158 Benchmark]: Toolchain (without parser) took 38897.69ms. Allocated memory was 92.3MB in the beginning and 226.5MB in the end (delta: 134.2MB). Free memory was 68.5MB in the beginning and 87.8MB in the end (delta: -19.3MB). Peak memory consumption was 117.3MB. Max. memory is 16.1GB. [2023-11-23 21:31:11,900 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:31:11,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.74ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 50.9MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:31:11,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.05ms. Allocated memory is still 92.3MB. Free memory was 50.7MB in the beginning and 70.3MB in the end (delta: -19.7MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2023-11-23 21:31:11,902 INFO L158 Benchmark]: Boogie Preprocessor took 95.84ms. Allocated memory is still 92.3MB. Free memory was 70.3MB in the beginning and 68.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:31:11,903 INFO L158 Benchmark]: RCFGBuilder took 779.87ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 36.1MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-23 21:31:11,904 INFO L158 Benchmark]: TraceAbstraction took 37297.27ms. Allocated memory was 92.3MB in the beginning and 226.5MB in the end (delta: 134.2MB). Free memory was 35.2MB in the beginning and 87.8MB in the end (delta: -52.6MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2023-11-23 21:31:11,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 587.74ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 50.9MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 130.05ms. Allocated memory is still 92.3MB. Free memory was 50.7MB in the beginning and 70.3MB in the end (delta: -19.7MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.84ms. Allocated memory is still 92.3MB. Free memory was 70.3MB in the beginning and 68.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 779.87ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 36.1MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 37297.27ms. Allocated memory was 92.3MB in the beginning and 226.5MB in the end (delta: 134.2MB). Free memory was 35.2MB in the beginning and 87.8MB in the end (delta: -52.6MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@41fae538 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@41fae538: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@41fae538