./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.3.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a8fb5b6f229e5a4fd597c3d3ce627886ac65e8da3c998565f3e47e3b850a3640 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:24:29,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:24:29,363 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:24:29,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:24:29,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:24:29,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:24:29,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:24:29,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:24:29,413 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:24:29,418 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:24:29,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:24:29,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:24:29,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:24:29,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:24:29,423 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:24:29,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:24:29,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:24:29,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:24:29,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:24:29,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:24:29,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:24:29,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:24:29,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:24:29,427 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:24:29,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:24:29,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:24:29,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:24:29,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:24:29,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:29,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:24:29,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:24:29,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:24:29,432 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:24:29,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:24:29,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:24:29,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:24:29,433 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:24:29,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:24:29,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:24:29,434 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8fb5b6f229e5a4fd597c3d3ce627886ac65e8da3c998565f3e47e3b850a3640 [2023-11-21 22:24:29,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:24:29,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:24:29,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:24:29,758 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:24:29,759 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:24:29,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.3.prop1-func-interl.c [2023-11-21 22:24:32,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:24:33,313 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:24:33,314 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.3.prop1-func-interl.c [2023-11-21 22:24:33,333 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/data/6360fb475/776d2209f86c471fa7600be720c787bd/FLAG0eb20a6a9 [2023-11-21 22:24:33,349 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/data/6360fb475/776d2209f86c471fa7600be720c787bd [2023-11-21 22:24:33,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:24:33,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:24:33,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:33,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:24:33,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:24:33,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:33" (1/1) ... [2023-11-21 22:24:33,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3246a4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:33, skipping insertion in model container [2023-11-21 22:24:33,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:33" (1/1) ... [2023-11-21 22:24:33,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:33,724 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_baaed0a4-bed0-49af-afef-b224eecab477/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.3.prop1-func-interl.c[1173,1186] [2023-11-21 22:24:34,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:34,168 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:24:34,181 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_baaed0a4-bed0-49af-afef-b224eecab477/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.3.prop1-func-interl.c[1173,1186] [2023-11-21 22:24:34,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:34,367 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:24:34,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34 WrapperNode [2023-11-21 22:24:34,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:34,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:34,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:24:34,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:24:34,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:34,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:35,196 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6069 [2023-11-21 22:24:35,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:35,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:24:35,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:24:35,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:24:35,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:35,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:35,429 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:35,622 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:24:35,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:35,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:35,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:36,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:36,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:36,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:36,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:24:36,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:24:36,153 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:24:36,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:24:36,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (1/1) ... [2023-11-21 22:24:36,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:36,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:36,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:36,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:24:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:24:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:24:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:24:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:24:36,673 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:24:36,676 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:24:41,751 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:24:55,956 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:24:55,957 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:24:55,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:55 BoogieIcfgContainer [2023-11-21 22:24:55,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:24:55,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:24:55,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:24:55,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:24:55,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:24:33" (1/3) ... [2023-11-21 22:24:55,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f07833c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:55, skipping insertion in model container [2023-11-21 22:24:55,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:34" (2/3) ... [2023-11-21 22:24:55,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f07833c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:55, skipping insertion in model container [2023-11-21 22:24:55,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:55" (3/3) ... [2023-11-21 22:24:55,969 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.3.prop1-func-interl.c [2023-11-21 22:24:55,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:24:55,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:24:56,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:24:56,047 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=PETRI_NET, 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;@5005114f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:24:56,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:24:56,051 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) [2023-11-21 22:24:56,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:24:56,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:24:56,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:24:56,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:24:56,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:56,063 INFO L85 PathProgramCache]: Analyzing trace with hash 234588570, now seen corresponding path program 1 times [2023-11-21 22:24:56,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:56,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620553746] [2023-11-21 22:24:56,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:56,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:56,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:57,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:24:57,339 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:24:57,340 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:24:57,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:24:57,347 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:24:57,359 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:24:57,419 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 22:24:57,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:24:57 BoogieIcfgContainer [2023-11-21 22:24:57,443 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:24:57,447 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:24:57,447 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:24:57,447 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:24:57,448 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:55" (3/4) ... [2023-11-21 22:24:57,452 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:24:57,454 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:24:57,455 INFO L158 Benchmark]: Toolchain (without parser) took 24100.96ms. Allocated memory was 146.8MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 106.6MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 482.4MB. Max. memory is 16.1GB. [2023-11-21 22:24:57,456 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:57,457 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1012.92ms. Allocated memory is still 146.8MB. Free memory was 106.2MB in the beginning and 59.3MB in the end (delta: 47.0MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-21 22:24:57,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 841.24ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 59.3MB in the beginning and 73.9MB in the end (delta: -14.6MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. [2023-11-21 22:24:57,464 INFO L158 Benchmark]: Boogie Preprocessor took 939.28ms. Allocated memory was 186.6MB in the beginning and 341.8MB in the end (delta: 155.2MB). Free memory was 73.9MB in the beginning and 193.9MB in the end (delta: -120.0MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2023-11-21 22:24:57,466 INFO L158 Benchmark]: RCFGBuilder took 19806.59ms. Allocated memory was 341.8MB in the beginning and 2.8GB in the end (delta: 2.4GB). Free memory was 193.9MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 857.4MB. Max. memory is 16.1GB. [2023-11-21 22:24:57,466 INFO L158 Benchmark]: TraceAbstraction took 1482.02ms. Allocated memory is still 2.8GB. Free memory was 2.4GB in the beginning and 2.3GB in the end (delta: 110.1MB). Peak memory consumption was 109.1MB. Max. memory is 16.1GB. [2023-11-21 22:24:57,467 INFO L158 Benchmark]: Witness Printer took 7.30ms. Allocated memory is still 2.8GB. Free memory was 2.3GB in the beginning and 2.3GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:24:57,476 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1012.92ms. Allocated memory is still 146.8MB. Free memory was 106.2MB in the beginning and 59.3MB in the end (delta: 47.0MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 841.24ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 59.3MB in the beginning and 73.9MB in the end (delta: -14.6MB). Peak memory consumption was 107.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 939.28ms. Allocated memory was 186.6MB in the beginning and 341.8MB in the end (delta: 155.2MB). Free memory was 73.9MB in the beginning and 193.9MB in the end (delta: -120.0MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. * RCFGBuilder took 19806.59ms. Allocated memory was 341.8MB in the beginning and 2.8GB in the end (delta: 2.4GB). Free memory was 193.9MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 857.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1482.02ms. Allocated memory is still 2.8GB. Free memory was 2.4GB in the beginning and 2.3GB in the end (delta: 110.1MB). Peak memory consumption was 109.1MB. Max. memory is 16.1GB. * Witness Printer took 7.30ms. Allocated memory is still 2.8GB. Free memory was 2.3GB in the beginning and 2.3GB 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 163. 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_30 = 0; [L40] const SORT_4 var_63 = 1; [L41] const SORT_4 var_64 = 0; [L42] const SORT_2 var_74 = 0; [L43] const SORT_2 var_76 = 1; [L44] const SORT_3 var_91 = 0; [L45] const SORT_4 var_227 = 3; [L46] const SORT_2 var_239 = 3; [L47] const SORT_4 var_241 = 4; [L48] const SORT_4 var_343 = 2; [L50] SORT_1 input_73; [L51] SORT_1 input_75; [L52] SORT_1 input_80; [L53] SORT_1 input_81; [L54] SORT_1 input_85; [L55] SORT_1 input_86; [L56] SORT_1 input_90; [L57] SORT_1 input_98; [L58] SORT_1 input_105; [L59] SORT_1 input_112; [L60] SORT_1 input_116; [L61] SORT_1 input_117; [L62] SORT_1 input_131; [L63] SORT_1 input_135; [L64] SORT_1 input_136; [L65] SORT_1 input_150; [L66] SORT_1 input_154; [L67] SORT_1 input_155; [L68] SORT_1 input_176; [L69] SORT_1 input_179; [L70] SORT_1 input_195; [L71] SORT_1 input_198; [L72] SORT_1 input_214; [L73] SORT_1 input_217; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L75] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L76] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L77] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L78] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L79] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L80] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L81] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L82] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L83] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L84] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L85] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L86] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L87] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L88] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L89] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L90] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L91] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L92] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L93] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L94] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L95] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L96] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L97] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L98] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L99] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L100] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L101] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L102] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] SORT_2 init_7_arg_1 = var_5; [L105] state_6 = init_7_arg_1 [L106] SORT_2 init_9_arg_1 = var_5; [L107] state_8 = init_9_arg_1 [L108] SORT_2 init_11_arg_1 = var_5; [L109] state_10 = init_11_arg_1 [L110] SORT_2 init_13_arg_1 = var_5; [L111] state_12 = init_13_arg_1 [L112] SORT_2 init_15_arg_1 = var_5; [L113] state_14 = init_15_arg_1 [L114] SORT_2 init_17_arg_1 = var_5; [L115] state_16 = init_17_arg_1 [L116] SORT_2 init_19_arg_1 = var_5; [L117] state_18 = init_19_arg_1 [L118] SORT_2 init_21_arg_1 = var_5; [L119] state_20 = init_21_arg_1 [L120] SORT_2 init_23_arg_1 = var_5; [L121] state_22 = init_23_arg_1 [L122] SORT_2 init_25_arg_1 = var_5; [L123] state_24 = init_25_arg_1 [L124] SORT_2 init_27_arg_1 = var_5; [L125] state_26 = init_27_arg_1 [L126] SORT_2 init_29_arg_1 = var_5; [L127] state_28 = init_29_arg_1 [L128] SORT_1 init_32_arg_1 = var_30; [L129] state_31 = init_32_arg_1 [L130] SORT_1 init_34_arg_1 = var_30; [L131] state_33 = init_34_arg_1 [L132] SORT_1 init_36_arg_1 = var_30; [L133] state_35 = init_36_arg_1 [L134] SORT_1 init_38_arg_1 = var_30; [L135] state_37 = init_38_arg_1 [L136] SORT_1 init_40_arg_1 = var_30; [L137] state_39 = init_40_arg_1 [L138] SORT_1 init_42_arg_1 = var_30; [L139] state_41 = init_42_arg_1 [L140] SORT_1 init_44_arg_1 = var_30; [L141] state_43 = init_44_arg_1 [L142] SORT_1 init_46_arg_1 = var_30; [L143] state_45 = init_46_arg_1 [L144] SORT_1 init_48_arg_1 = var_30; [L145] state_47 = init_48_arg_1 [L146] SORT_1 init_50_arg_1 = var_30; [L147] state_49 = init_50_arg_1 [L148] SORT_1 init_52_arg_1 = var_30; [L149] state_51 = init_52_arg_1 [L150] SORT_1 init_54_arg_1 = var_30; [L151] state_53 = init_54_arg_1 [L152] SORT_1 init_56_arg_1 = var_30; [L153] state_55 = init_56_arg_1 [L154] SORT_1 init_58_arg_1 = var_30; [L155] state_57 = init_58_arg_1 [L156] SORT_1 init_60_arg_1 = var_30; [L157] state_59 = init_60_arg_1 [L158] SORT_1 init_62_arg_1 = var_30; [L159] state_61 = init_62_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_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_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_7_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_22=0, state_24=0, state_26=0, state_28=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_6=0, state_8=0, var_227=3, var_239=3, var_241=4, var_30=0, var_343=2, var_5=0, var_63=1, var_64=0, var_74=0, var_76=1, var_91=0] [L162] input_73 = __VERIFIER_nondet_uchar() [L163] EXPR input_73 & mask_SORT_1 [L163] input_73 = input_73 & mask_SORT_1 [L164] input_75 = __VERIFIER_nondet_uchar() [L165] EXPR input_75 & mask_SORT_1 [L165] input_75 = input_75 & mask_SORT_1 [L166] input_80 = __VERIFIER_nondet_uchar() [L167] EXPR input_80 & mask_SORT_1 [L167] input_80 = input_80 & mask_SORT_1 [L168] input_81 = __VERIFIER_nondet_uchar() [L169] EXPR input_81 & mask_SORT_1 [L169] input_81 = input_81 & mask_SORT_1 [L170] input_85 = __VERIFIER_nondet_uchar() [L171] EXPR input_85 & mask_SORT_1 [L171] input_85 = input_85 & mask_SORT_1 [L172] input_86 = __VERIFIER_nondet_uchar() [L173] EXPR input_86 & mask_SORT_1 [L173] input_86 = input_86 & mask_SORT_1 [L174] input_90 = __VERIFIER_nondet_uchar() [L175] EXPR input_90 & mask_SORT_1 [L175] input_90 = input_90 & mask_SORT_1 [L176] input_98 = __VERIFIER_nondet_uchar() [L177] EXPR input_98 & mask_SORT_1 [L177] input_98 = input_98 & mask_SORT_1 [L178] input_105 = __VERIFIER_nondet_uchar() [L179] EXPR input_105 & mask_SORT_1 [L179] input_105 = input_105 & mask_SORT_1 [L180] input_112 = __VERIFIER_nondet_uchar() [L181] EXPR input_112 & mask_SORT_1 [L181] input_112 = input_112 & mask_SORT_1 [L182] input_116 = __VERIFIER_nondet_uchar() [L183] EXPR input_116 & mask_SORT_1 [L183] input_116 = input_116 & mask_SORT_1 [L184] input_117 = __VERIFIER_nondet_uchar() [L185] EXPR input_117 & mask_SORT_1 [L185] input_117 = input_117 & mask_SORT_1 [L186] input_131 = __VERIFIER_nondet_uchar() [L187] EXPR input_131 & mask_SORT_1 [L187] input_131 = input_131 & mask_SORT_1 [L188] input_135 = __VERIFIER_nondet_uchar() [L189] EXPR input_135 & mask_SORT_1 [L189] input_135 = input_135 & mask_SORT_1 [L190] input_136 = __VERIFIER_nondet_uchar() [L191] EXPR input_136 & mask_SORT_1 [L191] input_136 = input_136 & mask_SORT_1 [L192] input_150 = __VERIFIER_nondet_uchar() [L193] EXPR input_150 & mask_SORT_1 [L193] input_150 = input_150 & mask_SORT_1 [L194] input_154 = __VERIFIER_nondet_uchar() [L195] EXPR input_154 & mask_SORT_1 [L195] input_154 = input_154 & mask_SORT_1 [L196] input_155 = __VERIFIER_nondet_uchar() [L197] EXPR input_155 & mask_SORT_1 [L197] input_155 = input_155 & mask_SORT_1 [L198] input_176 = __VERIFIER_nondet_uchar() [L199] input_179 = __VERIFIER_nondet_uchar() [L200] input_195 = __VERIFIER_nondet_uchar() [L201] input_198 = __VERIFIER_nondet_uchar() [L202] input_214 = __VERIFIER_nondet_uchar() [L203] input_217 = __VERIFIER_nondet_uchar() [L206] SORT_1 var_65_arg_0 = state_39; [L207] SORT_4 var_65_arg_1 = var_63; [L208] SORT_4 var_65_arg_2 = var_64; [L209] SORT_4 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; [L210] SORT_1 var_66_arg_0 = state_49; [L211] SORT_4 var_66_arg_1 = var_63; [L212] SORT_4 var_66_arg_2 = var_64; [L213] SORT_4 var_66 = var_66_arg_0 ? var_66_arg_1 : var_66_arg_2; [L214] SORT_4 var_67_arg_0 = var_65; [L215] SORT_4 var_67_arg_1 = var_66; [L216] SORT_4 var_67 = var_67_arg_0 + var_67_arg_1; [L217] SORT_1 var_68_arg_0 = state_59; [L218] SORT_4 var_68_arg_1 = var_63; [L219] SORT_4 var_68_arg_2 = var_64; [L220] SORT_4 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L221] SORT_4 var_69_arg_0 = var_67; [L222] SORT_4 var_69_arg_1 = var_68; [L223] SORT_4 var_69 = var_69_arg_0 + var_69_arg_1; [L224] EXPR var_69 & mask_SORT_4 [L224] var_69 = var_69 & mask_SORT_4 [L225] SORT_4 var_70_arg_0 = var_69; [L226] SORT_4 var_70_arg_1 = var_63; [L227] SORT_1 var_70 = var_70_arg_0 <= var_70_arg_1; [L228] SORT_1 var_71_arg_0 = ~state_61; [L229] EXPR var_71_arg_0 & mask_SORT_1 [L229] var_71_arg_0 = var_71_arg_0 & mask_SORT_1 [L230] SORT_1 var_71_arg_1 = ~var_70; [L231] EXPR var_71_arg_1 & mask_SORT_1 [L231] var_71_arg_1 = var_71_arg_1 & mask_SORT_1 [L232] EXPR var_71_arg_0 & var_71_arg_1 [L232] SORT_1 var_71 = var_71_arg_0 & var_71_arg_1; [L233] EXPR var_71 & mask_SORT_1 [L233] var_71 = var_71 & mask_SORT_1 [L234] SORT_1 bad_72_arg_0 = var_71; [L235] CALL __VERIFIER_assert(!(bad_72_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: 1.3s, 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, 0.6s 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 [2023-11-21 22:24:57,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/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_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a8fb5b6f229e5a4fd597c3d3ce627886ac65e8da3c998565f3e47e3b850a3640 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:00,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:00,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-21 22:25:00,420 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:00,423 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:00,472 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:00,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:00,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:00,475 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:25:00,480 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:25:00,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:00,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:00,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:00,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:00,484 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:00,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:00,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:25:00,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:00,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:25:00,487 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:00,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:25:00,489 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:25:00,489 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:25:00,490 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:25:00,490 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:25:00,490 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:00,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:00,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:00,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:25:00,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:00,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:00,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:00,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:00,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:25:00,496 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:25:00,496 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:25:00,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:00,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:00,498 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:25:00,498 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:00,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:00,499 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:25:00,499 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8fb5b6f229e5a4fd597c3d3ce627886ac65e8da3c998565f3e47e3b850a3640 [2023-11-21 22:25:00,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:00,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:00,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:00,906 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:00,907 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:00,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.3.prop1-func-interl.c [2023-11-21 22:25:04,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:04,615 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:04,617 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.3.prop1-func-interl.c [2023-11-21 22:25:04,634 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/data/5e83cf2d3/09c8e7e6a396429ba76a1b4d8edf1bd9/FLAG03f909fcf [2023-11-21 22:25:04,655 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/data/5e83cf2d3/09c8e7e6a396429ba76a1b4d8edf1bd9 [2023-11-21 22:25:04,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:04,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:04,666 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:04,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:04,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:04,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:04" (1/1) ... [2023-11-21 22:25:04,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac50a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:04, skipping insertion in model container [2023-11-21 22:25:04,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:04" (1/1) ... [2023-11-21 22:25:04,783 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:05,061 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_baaed0a4-bed0-49af-afef-b224eecab477/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.3.prop1-func-interl.c[1173,1186] [2023-11-21 22:25:05,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:05,548 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:05,564 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_baaed0a4-bed0-49af-afef-b224eecab477/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bakery.3.prop1-func-interl.c[1173,1186] [2023-11-21 22:25:05,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:05,722 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:05,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05 WrapperNode [2023-11-21 22:25:05,723 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:05,724 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:05,725 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:05,725 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:05,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,876 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1652 [2023-11-21 22:25:05,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:05,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:05,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:05,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:05,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,913 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,985 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:25:05,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:06,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:06,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:06,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:06,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:06,165 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:06,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:06,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:06,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:06,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:06,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:06,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:06,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:06,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:25:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:06,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:06,601 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:06,604 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:10,367 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:10,511 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:10,513 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:25:10,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:10 BoogieIcfgContainer [2023-11-21 22:25:10,515 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:10,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:10,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:10,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:10,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:04" (1/3) ... [2023-11-21 22:25:10,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130f3dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:10, skipping insertion in model container [2023-11-21 22:25:10,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (2/3) ... [2023-11-21 22:25:10,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@130f3dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:10, skipping insertion in model container [2023-11-21 22:25:10,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:10" (3/3) ... [2023-11-21 22:25:10,527 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bakery.3.prop1-func-interl.c [2023-11-21 22:25:10,547 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:10,548 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:25:10,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:10,614 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=PETRI_NET, 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;@4c47bb15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:10,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:25:10,619 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) [2023-11-21 22:25:10,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:25:10,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:10,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:25:10,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:10,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:10,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-21 22:25:10,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:25:10,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161517203] [2023-11-21 22:25:10,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:10,660 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 [2023-11-21 22:25:10,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:25:10,664 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:25:10,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:11,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-21 22:25:11,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:11,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:11,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:25:11,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:25:11,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161517203] [2023-11-21 22:25:11,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161517203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:11,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:11,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:25:11,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77708577] [2023-11-21 22:25:11,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:11,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:25:11,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:25:11,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:25:11,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:25:11,727 INFO L87 Difference]: Start difference. First 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) 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) [2023-11-21 22:25:12,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:12,186 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2023-11-21 22:25:12,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:25:12,188 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 [2023-11-21 22:25:12,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:12,196 INFO L225 Difference]: With dead ends: 15 [2023-11-21 22:25:12,196 INFO L226 Difference]: Without dead ends: 9 [2023-11-21 22:25:12,199 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 [2023-11-21 22:25:12,202 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:12,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:25:12,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-21 22:25:12,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-21 22:25:12,232 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) [2023-11-21 22:25:12,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-21 22:25:12,234 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-21 22:25:12,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:12,234 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-21 22:25:12,235 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) [2023-11-21 22:25:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-21 22:25:12,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:25:12,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:12,235 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-21 22:25:12,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/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)] Ended with exit code 0 [2023-11-21 22:25:12,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:12,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:12,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:12,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-21 22:25:12,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:25:12,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778160640] [2023-11-21 22:25:12,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:12,443 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 [2023-11-21 22:25:12,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:25:12,445 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:25:12,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaed0a4-bed0-49af-afef-b224eecab477/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:14,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 125 conjunts are in the unsatisfiable core [2023-11-21 22:25:14,093 INFO L285 TraceCheckSpWp]: Computing forward predicates...