./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ --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 c482feebae2e4674787294054b23234696017dfe8b10199ec324ab4d13763155 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:16:56,552 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:16:56,639 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:16:56,645 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:16:56,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:16:56,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:16:56,674 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:16:56,675 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:16:56,675 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:16:56,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:16:56,677 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:16:56,677 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:16:56,678 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:16:56,678 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:16:56,679 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:16:56,679 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:16:56,680 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:16:56,680 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:16:56,681 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:16:56,682 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:16:56,682 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:16:56,683 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:16:56,684 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:16:56,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:16:56,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:16:56,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:16:56,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:16:56,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:16:56,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:16:56,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:16:56,687 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:16:56,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:16:56,688 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:16:56,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:16:56,688 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:16:56,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:16:56,689 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:16:56,689 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:16:56,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:16:56,690 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:16:56,690 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:16:56,690 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:16:56,690 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_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c482feebae2e4674787294054b23234696017dfe8b10199ec324ab4d13763155 [2023-11-19 04:16:57,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:16:57,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:16:57,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:16:57,065 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:16:57,065 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:16:57,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2023-11-19 04:17:00,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:17:01,040 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:17:01,041 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2023-11-19 04:17:01,070 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/data/68bece470/6cce6202e193494e96a91e226f0f46ac/FLAGef5387b52 [2023-11-19 04:17:01,092 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/data/68bece470/6cce6202e193494e96a91e226f0f46ac [2023-11-19 04:17:01,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:17:01,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:17:01,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:17:01,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:17:01,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:17:01,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:17:01" (1/1) ... [2023-11-19 04:17:01,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62055c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:01, skipping insertion in model container [2023-11-19 04:17:01,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:17:01" (1/1) ... [2023-11-19 04:17:01,226 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:17:01,548 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_3b402e99-f8f6-4579-9bf3-3a0823d709b7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1174,1187] [2023-11-19 04:17:02,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:17:02,305 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:17:02,322 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_3b402e99-f8f6-4579-9bf3-3a0823d709b7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1174,1187] [2023-11-19 04:17:02,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:17:02,636 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:17:02,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02 WrapperNode [2023-11-19 04:17:02,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:17:02,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:17:02,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:17:02,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:17:02,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (1/1) ... [2023-11-19 04:17:02,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (1/1) ... [2023-11-19 04:17:04,119 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 9424 [2023-11-19 04:17:04,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:17:04,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:17:04,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:17:04,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:17:04,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (1/1) ... [2023-11-19 04:17:04,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (1/1) ... [2023-11-19 04:17:04,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (1/1) ... [2023-11-19 04:17:04,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (1/1) ... [2023-11-19 04:17:05,197 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (1/1) ... [2023-11-19 04:17:05,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (1/1) ... [2023-11-19 04:17:05,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (1/1) ... [2023-11-19 04:17:05,405 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (1/1) ... [2023-11-19 04:17:05,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:17:05,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:17:05,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:17:05,607 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:17:05,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (1/1) ... [2023-11-19 04:17:05,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:17:05,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:17:05,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:17:05,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:17:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:17:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:17:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:17:05,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:17:06,514 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:17:06,517 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:17:14,605 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:17:36,600 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:17:36,600 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:17:36,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:17:36 BoogieIcfgContainer [2023-11-19 04:17:36,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:17:36,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:17:36,612 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:17:36,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:17:36,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:17:01" (1/3) ... [2023-11-19 04:17:36,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141d1608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:17:36, skipping insertion in model container [2023-11-19 04:17:36,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:02" (2/3) ... [2023-11-19 04:17:36,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141d1608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:17:36, skipping insertion in model container [2023-11-19 04:17:36,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:17:36" (3/3) ... [2023-11-19 04:17:36,620 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.2.prop1-func-interl.c [2023-11-19 04:17:36,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:17:36,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:17:36,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:17:36,728 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;@67853d98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:17:36,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:17:36,734 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) [2023-11-19 04:17:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:17:36,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:17:36,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 04:17:36,744 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:17:36,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:17:36,750 INFO L85 PathProgramCache]: Analyzing trace with hash 369321341, now seen corresponding path program 1 times [2023-11-19 04:17:36,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:17:36,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620936661] [2023-11-19 04:17:36,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:17:36,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:17:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:17:37,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:17:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:17:38,653 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:17:38,658 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:17:38,659 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:17:38,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:17:38,669 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:17:38,675 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:17:38,758 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-19 04:17:38,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:17:38 BoogieIcfgContainer [2023-11-19 04:17:38,797 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:17:38,800 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:17:38,800 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:17:38,800 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:17:38,801 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:17:36" (3/4) ... [2023-11-19 04:17:38,806 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:17:38,808 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:17:38,810 INFO L158 Benchmark]: Toolchain (without parser) took 37704.91ms. Allocated memory was 155.2MB in the beginning and 10.2GB in the end (delta: 10.1GB). Free memory was 105.3MB in the beginning and 9.5GB in the end (delta: -9.4GB). Peak memory consumption was 701.6MB. Max. memory is 16.1GB. [2023-11-19 04:17:38,810 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 155.2MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:17:38,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1529.43ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 105.3MB in the beginning and 112.0MB in the end (delta: -6.7MB). Peak memory consumption was 76.1MB. Max. memory is 16.1GB. [2023-11-19 04:17:38,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 1486.16ms. Allocated memory was 205.5MB in the beginning and 671.1MB in the end (delta: 465.6MB). Free memory was 112.0MB in the beginning and 493.9MB in the end (delta: -381.8MB). Peak memory consumption was 168.7MB. Max. memory is 16.1GB. [2023-11-19 04:17:38,821 INFO L158 Benchmark]: Boogie Preprocessor took 1479.01ms. Allocated memory is still 671.1MB. Free memory was 493.9MB in the beginning and 437.1MB in the end (delta: 56.7MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2023-11-19 04:17:38,823 INFO L158 Benchmark]: RCFGBuilder took 31001.44ms. Allocated memory was 671.1MB in the beginning and 10.2GB in the end (delta: 9.6GB). Free memory was 437.1MB in the beginning and 9.6GB in the end (delta: -9.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2023-11-19 04:17:38,824 INFO L158 Benchmark]: TraceAbstraction took 2185.94ms. Allocated memory is still 10.2GB. Free memory was 9.6GB in the beginning and 9.5GB in the end (delta: 139.5MB). Peak memory consumption was 138.4MB. Max. memory is 16.1GB. [2023-11-19 04:17:38,824 INFO L158 Benchmark]: Witness Printer took 8.40ms. Allocated memory is still 10.2GB. Free memory is still 9.5GB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:17:38,836 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 155.2MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1529.43ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 105.3MB in the beginning and 112.0MB in the end (delta: -6.7MB). Peak memory consumption was 76.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1486.16ms. Allocated memory was 205.5MB in the beginning and 671.1MB in the end (delta: 465.6MB). Free memory was 112.0MB in the beginning and 493.9MB in the end (delta: -381.8MB). Peak memory consumption was 168.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1479.01ms. Allocated memory is still 671.1MB. Free memory was 493.9MB in the beginning and 437.1MB in the end (delta: 56.7MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. * RCFGBuilder took 31001.44ms. Allocated memory was 671.1MB in the beginning and 10.2GB in the end (delta: 9.6GB). Free memory was 437.1MB in the beginning and 9.6GB in the end (delta: -9.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * TraceAbstraction took 2185.94ms. Allocated memory is still 10.2GB. Free memory was 9.6GB in the beginning and 9.5GB in the end (delta: 139.5MB). Peak memory consumption was 138.4MB. Max. memory is 16.1GB. * Witness Printer took 8.40ms. Allocated memory is still 10.2GB. Free memory is still 9.5GB. There was no memory consumed. 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 216. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_22 = 0; [L40] const SORT_4 var_85 = 1; [L41] const SORT_4 var_86 = 0; [L42] const SORT_2 var_95 = 0; [L43] const SORT_2 var_96 = 255; [L44] const SORT_2 var_108 = 1; [L45] const SORT_2 var_132 = 2; [L46] const SORT_3 var_169 = 0; [L47] const SORT_4 var_337 = 3; [L48] const SORT_2 var_348 = 3; [L50] SORT_1 input_99; [L51] SORT_1 input_101; [L52] SORT_1 input_103; [L53] SORT_1 input_104; [L54] SORT_1 input_105; [L55] SORT_1 input_107; [L56] SORT_1 input_118; [L57] SORT_1 input_119; [L58] SORT_1 input_121; [L59] SORT_1 input_130; [L60] SORT_1 input_131; [L61] SORT_1 input_135; [L62] SORT_1 input_145; [L63] SORT_1 input_146; [L64] SORT_1 input_147; [L65] SORT_1 input_153; [L66] SORT_1 input_154; [L67] SORT_1 input_155; [L68] SORT_1 input_156; [L69] SORT_1 input_157; [L70] SORT_1 input_158; [L71] SORT_1 input_168; [L72] SORT_1 input_176; [L73] SORT_1 input_183; [L74] SORT_1 input_191; [L75] SORT_1 input_193; [L76] SORT_1 input_197; [L77] SORT_1 input_199; [L78] SORT_1 input_208; [L79] SORT_1 input_222; [L80] SORT_1 input_233; [L81] SORT_1 input_235; [L82] SORT_1 input_239; [L83] SORT_1 input_241; [L84] SORT_1 input_250; [L85] SORT_1 input_264; [L86] SORT_1 input_275; [L87] SORT_1 input_277; [L88] SORT_1 input_281; [L89] SORT_1 input_283; [L90] SORT_1 input_292; [L91] SORT_1 input_306; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L93] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L94] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L95] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L96] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L97] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L98] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L99] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L100] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L101] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L102] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L103] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L104] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L105] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L106] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L107] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L108] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L109] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L110] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L111] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L112] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L113] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L114] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L115] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L116] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L117] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L118] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L119] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L120] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L121] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L122] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L123] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L124] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L125] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L126] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L127] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L128] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L129] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L130] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L131] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] SORT_2 init_7_arg_1 = var_5; [L134] state_6 = init_7_arg_1 [L135] SORT_2 init_9_arg_1 = var_5; [L136] state_8 = init_9_arg_1 [L137] SORT_2 init_11_arg_1 = var_5; [L138] state_10 = init_11_arg_1 [L139] SORT_2 init_13_arg_1 = var_5; [L140] state_12 = init_13_arg_1 [L141] SORT_2 init_15_arg_1 = var_5; [L142] state_14 = init_15_arg_1 [L143] SORT_2 init_17_arg_1 = var_5; [L144] state_16 = init_17_arg_1 [L145] SORT_2 init_19_arg_1 = var_5; [L146] state_18 = init_19_arg_1 [L147] SORT_2 init_21_arg_1 = var_5; [L148] state_20 = init_21_arg_1 [L149] SORT_1 init_24_arg_1 = var_22; [L150] state_23 = init_24_arg_1 [L151] SORT_1 init_26_arg_1 = var_22; [L152] state_25 = init_26_arg_1 [L153] SORT_1 init_28_arg_1 = var_22; [L154] state_27 = init_28_arg_1 [L155] SORT_1 init_30_arg_1 = var_22; [L156] state_29 = init_30_arg_1 [L157] SORT_1 init_32_arg_1 = var_22; [L158] state_31 = init_32_arg_1 [L159] SORT_1 init_34_arg_1 = var_22; [L160] state_33 = init_34_arg_1 [L161] SORT_1 init_36_arg_1 = var_22; [L162] state_35 = init_36_arg_1 [L163] SORT_1 init_38_arg_1 = var_22; [L164] state_37 = init_38_arg_1 [L165] SORT_1 init_40_arg_1 = var_22; [L166] state_39 = init_40_arg_1 [L167] SORT_1 init_42_arg_1 = var_22; [L168] state_41 = init_42_arg_1 [L169] SORT_1 init_44_arg_1 = var_22; [L170] state_43 = init_44_arg_1 [L171] SORT_1 init_46_arg_1 = var_22; [L172] state_45 = init_46_arg_1 [L173] SORT_1 init_48_arg_1 = var_22; [L174] state_47 = init_48_arg_1 [L175] SORT_1 init_50_arg_1 = var_22; [L176] state_49 = init_50_arg_1 [L177] SORT_1 init_52_arg_1 = var_22; [L178] state_51 = init_52_arg_1 [L179] SORT_1 init_54_arg_1 = var_22; [L180] state_53 = init_54_arg_1 [L181] SORT_1 init_56_arg_1 = var_22; [L182] state_55 = init_56_arg_1 [L183] SORT_1 init_58_arg_1 = var_22; [L184] state_57 = init_58_arg_1 [L185] SORT_1 init_60_arg_1 = var_22; [L186] state_59 = init_60_arg_1 [L187] SORT_1 init_62_arg_1 = var_22; [L188] state_61 = init_62_arg_1 [L189] SORT_1 init_64_arg_1 = var_22; [L190] state_63 = init_64_arg_1 [L191] SORT_1 init_66_arg_1 = var_22; [L192] state_65 = init_66_arg_1 [L193] SORT_1 init_68_arg_1 = var_22; [L194] state_67 = init_68_arg_1 [L195] SORT_1 init_70_arg_1 = var_22; [L196] state_69 = init_70_arg_1 [L197] SORT_1 init_72_arg_1 = var_22; [L198] state_71 = init_72_arg_1 [L199] SORT_1 init_74_arg_1 = var_22; [L200] state_73 = init_74_arg_1 [L201] SORT_1 init_76_arg_1 = var_22; [L202] state_75 = init_76_arg_1 [L203] SORT_1 init_78_arg_1 = var_22; [L204] state_77 = init_78_arg_1 [L205] SORT_1 init_80_arg_1 = var_22; [L206] state_79 = init_80_arg_1 [L207] SORT_1 init_82_arg_1 = var_22; [L208] state_81 = init_82_arg_1 [L209] SORT_1 init_84_arg_1 = var_22; [L210] state_83 = init_84_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_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_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=16777215, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_6=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_81=0, state_83=0, state_8=0, var_108=1, var_132=2, var_169=0, var_22=0, var_337=3, var_348=3, var_5=0, var_85=1, var_86=0, var_95=0, var_96=255] [L213] input_99 = __VERIFIER_nondet_uchar() [L214] input_101 = __VERIFIER_nondet_uchar() [L215] input_103 = __VERIFIER_nondet_uchar() [L216] EXPR input_103 & mask_SORT_1 [L216] input_103 = input_103 & mask_SORT_1 [L217] input_104 = __VERIFIER_nondet_uchar() [L218] EXPR input_104 & mask_SORT_1 [L218] input_104 = input_104 & mask_SORT_1 [L219] input_105 = __VERIFIER_nondet_uchar() [L220] input_107 = __VERIFIER_nondet_uchar() [L221] EXPR input_107 & mask_SORT_1 [L221] input_107 = input_107 & mask_SORT_1 [L222] input_118 = __VERIFIER_nondet_uchar() [L223] EXPR input_118 & mask_SORT_1 [L223] input_118 = input_118 & mask_SORT_1 [L224] input_119 = __VERIFIER_nondet_uchar() [L225] EXPR input_119 & mask_SORT_1 [L225] input_119 = input_119 & mask_SORT_1 [L226] input_121 = __VERIFIER_nondet_uchar() [L227] EXPR input_121 & mask_SORT_1 [L227] input_121 = input_121 & mask_SORT_1 [L228] input_130 = __VERIFIER_nondet_uchar() [L229] EXPR input_130 & mask_SORT_1 [L229] input_130 = input_130 & mask_SORT_1 [L230] input_131 = __VERIFIER_nondet_uchar() [L231] EXPR input_131 & mask_SORT_1 [L231] input_131 = input_131 & mask_SORT_1 [L232] input_135 = __VERIFIER_nondet_uchar() [L233] EXPR input_135 & mask_SORT_1 [L233] input_135 = input_135 & mask_SORT_1 [L234] input_145 = __VERIFIER_nondet_uchar() [L235] EXPR input_145 & mask_SORT_1 [L235] input_145 = input_145 & mask_SORT_1 [L236] input_146 = __VERIFIER_nondet_uchar() [L237] EXPR input_146 & mask_SORT_1 [L237] input_146 = input_146 & mask_SORT_1 [L238] input_147 = __VERIFIER_nondet_uchar() [L239] EXPR input_147 & mask_SORT_1 [L239] input_147 = input_147 & mask_SORT_1 [L240] input_153 = __VERIFIER_nondet_uchar() [L241] EXPR input_153 & mask_SORT_1 [L241] input_153 = input_153 & mask_SORT_1 [L242] input_154 = __VERIFIER_nondet_uchar() [L243] EXPR input_154 & mask_SORT_1 [L243] input_154 = input_154 & mask_SORT_1 [L244] input_155 = __VERIFIER_nondet_uchar() [L245] EXPR input_155 & mask_SORT_1 [L245] input_155 = input_155 & mask_SORT_1 [L246] input_156 = __VERIFIER_nondet_uchar() [L247] EXPR input_156 & mask_SORT_1 [L247] input_156 = input_156 & mask_SORT_1 [L248] input_157 = __VERIFIER_nondet_uchar() [L249] EXPR input_157 & mask_SORT_1 [L249] input_157 = input_157 & mask_SORT_1 [L250] input_158 = __VERIFIER_nondet_uchar() [L251] EXPR input_158 & mask_SORT_1 [L251] input_158 = input_158 & mask_SORT_1 [L252] input_168 = __VERIFIER_nondet_uchar() [L253] EXPR input_168 & mask_SORT_1 [L253] input_168 = input_168 & mask_SORT_1 [L254] input_176 = __VERIFIER_nondet_uchar() [L255] EXPR input_176 & mask_SORT_1 [L255] input_176 = input_176 & mask_SORT_1 [L256] input_183 = __VERIFIER_nondet_uchar() [L257] EXPR input_183 & mask_SORT_1 [L257] input_183 = input_183 & mask_SORT_1 [L258] input_191 = __VERIFIER_nondet_uchar() [L259] input_193 = __VERIFIER_nondet_uchar() [L260] input_197 = __VERIFIER_nondet_uchar() [L261] input_199 = __VERIFIER_nondet_uchar() [L262] input_208 = __VERIFIER_nondet_uchar() [L263] input_222 = __VERIFIER_nondet_uchar() [L264] input_233 = __VERIFIER_nondet_uchar() [L265] input_235 = __VERIFIER_nondet_uchar() [L266] input_239 = __VERIFIER_nondet_uchar() [L267] input_241 = __VERIFIER_nondet_uchar() [L268] input_250 = __VERIFIER_nondet_uchar() [L269] input_264 = __VERIFIER_nondet_uchar() [L270] input_275 = __VERIFIER_nondet_uchar() [L271] input_277 = __VERIFIER_nondet_uchar() [L272] input_281 = __VERIFIER_nondet_uchar() [L273] input_283 = __VERIFIER_nondet_uchar() [L274] input_292 = __VERIFIER_nondet_uchar() [L275] input_306 = __VERIFIER_nondet_uchar() [L278] SORT_1 var_87_arg_0 = state_25; [L279] SORT_4 var_87_arg_1 = var_85; [L280] SORT_4 var_87_arg_2 = var_86; [L281] SORT_4 var_87 = var_87_arg_0 ? var_87_arg_1 : var_87_arg_2; [L282] SORT_1 var_88_arg_0 = state_45; [L283] SORT_4 var_88_arg_1 = var_85; [L284] SORT_4 var_88_arg_2 = var_86; [L285] SORT_4 var_88 = var_88_arg_0 ? var_88_arg_1 : var_88_arg_2; [L286] SORT_4 var_89_arg_0 = var_87; [L287] SORT_4 var_89_arg_1 = var_88; [L288] SORT_4 var_89 = var_89_arg_0 + var_89_arg_1; [L289] SORT_1 var_90_arg_0 = state_65; [L290] SORT_4 var_90_arg_1 = var_85; [L291] SORT_4 var_90_arg_2 = var_86; [L292] SORT_4 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L293] SORT_4 var_91_arg_0 = var_89; [L294] SORT_4 var_91_arg_1 = var_90; [L295] SORT_4 var_91 = var_91_arg_0 + var_91_arg_1; [L296] EXPR var_91 & mask_SORT_4 [L296] var_91 = var_91 & mask_SORT_4 [L297] SORT_4 var_92_arg_0 = var_91; [L298] SORT_4 var_92_arg_1 = var_85; [L299] SORT_1 var_92 = var_92_arg_0 <= var_92_arg_1; [L300] SORT_1 var_93_arg_0 = ~state_83; [L301] EXPR var_93_arg_0 & mask_SORT_1 [L301] var_93_arg_0 = var_93_arg_0 & mask_SORT_1 [L302] SORT_1 var_93_arg_1 = ~var_92; [L303] EXPR var_93_arg_1 & mask_SORT_1 [L303] var_93_arg_1 = var_93_arg_1 & mask_SORT_1 [L304] EXPR var_93_arg_0 & var_93_arg_1 [L304] SORT_1 var_93 = var_93_arg_0 & var_93_arg_1; [L305] EXPR var_93 & mask_SORT_1 [L305] var_93 = var_93 & mask_SORT_1 [L306] SORT_1 bad_94_arg_0 = var_93; [L307] CALL __VERIFIER_assert(!(bad_94_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: 2.0s, 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: 0.1s SsaConstructionTime, 0.9s 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 [2023-11-19 04:17:38,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ --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 c482feebae2e4674787294054b23234696017dfe8b10199ec324ab4d13763155 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:17:42,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:17:42,414 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b402e99-f8f6-4579-9bf3-3a0823d709b7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-19 04:17:42,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:17:42,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:17:42,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:17:42,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:17:42,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:17:42,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:17:42,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:17:42,490 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:17:42,490 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:17:42,491 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:17:42,493 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:17:42,493 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:17:42,494 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:17:42,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:17:42,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:17:42,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:17:42,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:17:42,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:17:42,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:17:42,499 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:17:42,499 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:17:42,500 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:17:42,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:17:42,501 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:17:42,501 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:17:42,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:17:42,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:17:42,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:17:42,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:17:42,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:17:42,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:17:42,505 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:17:42,505 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:17:42,506 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:17:42,506 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:17:42,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:17:42,507 INFO L153 SettingsManager]: * Logic for external solver=AUFBV