./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU --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 a68330c23bd8fa71b4f2c1a72229a125c9c545dc64c1e4d5015a2916cb213688 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:58:11,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:58:11,439 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-31 21:58:11,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:58:11,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:58:11,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:58:11,485 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:58:11,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:58:11,487 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:58:11,488 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:58:11,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:58:11,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:58:11,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:58:11,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:58:11,491 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:58:11,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:58:11,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:58:11,496 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:58:11,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:58:11,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:58:11,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:58:11,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:58:11,498 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:58:11,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:58:11,498 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:58:11,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:58:11,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:58:11,499 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:58:11,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:58:11,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:11,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:58:11,500 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:58:11,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:58:11,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:58:11,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:58:11,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:58:11,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:58:11,505 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:58:11,505 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:58:11,506 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_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a68330c23bd8fa71b4f2c1a72229a125c9c545dc64c1e4d5015a2916cb213688 [2024-10-31 21:58:11,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:58:11,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:58:11,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:58:11,886 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:58:11,886 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:58:11,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c Unable to find full path for "g++" [2024-10-31 21:58:13,947 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:58:14,450 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:58:14,451 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c [2024-10-31 21:58:14,476 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/data/0cc450d1f/9dc771b2ef834996bb4d7bcdd83a8012/FLAGc5b7d7450 [2024-10-31 21:58:14,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/data/0cc450d1f/9dc771b2ef834996bb4d7bcdd83a8012 [2024-10-31 21:58:14,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:58:14,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:58:14,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:14,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:58:14,544 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:58:14,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:14" (1/1) ... [2024-10-31 21:58:14,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cdb2870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:14, skipping insertion in model container [2024-10-31 21:58:14,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:14" (1/1) ... [2024-10-31 21:58:14,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:58:14,979 WARN L251 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_029fe82a-df28-4dc3-8c91-363d79469bc3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c[1246,1259] [2024-10-31 21:58:15,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:15,309 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:58:15,326 WARN L251 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_029fe82a-df28-4dc3-8c91-363d79469bc3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c[1246,1259] [2024-10-31 21:58:15,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:15,605 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:58:15,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15 WrapperNode [2024-10-31 21:58:15,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:15,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:15,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:58:15,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:58:15,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:15,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:15,948 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1816 [2024-10-31 21:58:15,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:15,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:58:15,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:58:15,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:58:15,976 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:15,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:16,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:16,135 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:58:16,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:16,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:16,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:16,200 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:16,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:16,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:16,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:58:16,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:58:16,257 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:58:16,257 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:58:16,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (1/1) ... [2024-10-31 21:58:16,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:16,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:16,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:16,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:58:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:58:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:58:16,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:58:16,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:58:16,680 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:58:16,684 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:58:18,725 INFO L? ?]: Removed 1165 outVars from TransFormulas that were not future-live. [2024-10-31 21:58:18,725 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:58:18,752 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:58:18,752 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 21:58:18,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:18 BoogieIcfgContainer [2024-10-31 21:58:18,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:58:18,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:58:18,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:58:18,761 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:58:18,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:58:14" (1/3) ... [2024-10-31 21:58:18,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a90b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:18, skipping insertion in model container [2024-10-31 21:58:18,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:15" (2/3) ... [2024-10-31 21:58:18,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a90b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:18, skipping insertion in model container [2024-10-31 21:58:18,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:18" (3/3) ... [2024-10-31 21:58:18,770 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.v_DAIO.c [2024-10-31 21:58:18,809 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:58:18,809 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:58:18,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:58:18,934 INFO L333 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, 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;@47273411, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:58:18,934 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 21:58:18,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 230 states, 228 states have (on average 1.4956140350877194) internal successors, (341), 229 states have internal predecessors, (341), 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) [2024-10-31 21:58:18,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 21:58:18,952 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:18,952 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:18,953 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:58:18,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:18,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1464363741, now seen corresponding path program 1 times [2024-10-31 21:58:18,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:18,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883416853] [2024-10-31 21:58:18,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:18,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:20,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:20,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883416853] [2024-10-31 21:58:20,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883416853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:20,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:20,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:58:20,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873149701] [2024-10-31 21:58:20,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:20,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:58:20,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:20,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:58:20,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:58:20,114 INFO L87 Difference]: Start difference. First operand has 230 states, 228 states have (on average 1.4956140350877194) internal successors, (341), 229 states have internal predecessors, (341), 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 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-10-31 21:58:20,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:20,343 INFO L93 Difference]: Finished difference Result 435 states and 648 transitions. [2024-10-31 21:58:20,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:58:20,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2024-10-31 21:58:20,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:20,359 INFO L225 Difference]: With dead ends: 435 [2024-10-31 21:58:20,360 INFO L226 Difference]: Without dead ends: 231 [2024-10-31 21:58:20,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:58:20,369 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 319 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:20,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1289 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:58:20,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-10-31 21:58:20,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 230. [2024-10-31 21:58:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.48471615720524) internal successors, (340), 229 states have internal predecessors, (340), 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) [2024-10-31 21:58:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 340 transitions. [2024-10-31 21:58:20,436 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 340 transitions. Word has length 31 [2024-10-31 21:58:20,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:20,437 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 340 transitions. [2024-10-31 21:58:20,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-10-31 21:58:20,438 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 340 transitions. [2024-10-31 21:58:20,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-31 21:58:20,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:20,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:20,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:58:20,442 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:58:20,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:20,443 INFO L85 PathProgramCache]: Analyzing trace with hash 49670507, now seen corresponding path program 1 times [2024-10-31 21:58:20,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:20,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833897426] [2024-10-31 21:58:20,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:20,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:20,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:20,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:20,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833897426] [2024-10-31 21:58:20,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833897426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:20,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:20,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:20,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46551116] [2024-10-31 21:58:20,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:20,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:20,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:20,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:20,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:20,705 INFO L87 Difference]: Start difference. First operand 230 states and 340 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-10-31 21:58:20,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:20,737 INFO L93 Difference]: Finished difference Result 234 states and 344 transitions. [2024-10-31 21:58:20,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:58:20,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2024-10-31 21:58:20,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:20,739 INFO L225 Difference]: With dead ends: 234 [2024-10-31 21:58:20,739 INFO L226 Difference]: Without dead ends: 232 [2024-10-31 21:58:20,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:20,741 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:20,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 999 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:58:20,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-10-31 21:58:20,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-10-31 21:58:20,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 1.4805194805194806) internal successors, (342), 231 states have internal predecessors, (342), 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) [2024-10-31 21:58:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 342 transitions. [2024-10-31 21:58:20,761 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 342 transitions. Word has length 32 [2024-10-31 21:58:20,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:20,762 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 342 transitions. [2024-10-31 21:58:20,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-10-31 21:58:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 342 transitions. [2024-10-31 21:58:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-31 21:58:20,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:20,763 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:20,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:58:20,767 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:58:20,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:20,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1541481039, now seen corresponding path program 1 times [2024-10-31 21:58:20,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:20,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283776402] [2024-10-31 21:58:20,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:20,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:21,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:21,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283776402] [2024-10-31 21:58:21,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283776402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:21,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:21,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:21,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965064151] [2024-10-31 21:58:21,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:21,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:21,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:21,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:21,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:21,016 INFO L87 Difference]: Start difference. First operand 232 states and 342 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-10-31 21:58:21,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:21,060 INFO L93 Difference]: Finished difference Result 440 states and 649 transitions. [2024-10-31 21:58:21,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:58:21,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2024-10-31 21:58:21,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:21,064 INFO L225 Difference]: With dead ends: 440 [2024-10-31 21:58:21,064 INFO L226 Difference]: Without dead ends: 234 [2024-10-31 21:58:21,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:21,068 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 0 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:21,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 995 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:58:21,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-10-31 21:58:21,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-10-31 21:58:21,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.4763948497854078) internal successors, (344), 233 states have internal predecessors, (344), 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) [2024-10-31 21:58:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 344 transitions. [2024-10-31 21:58:21,079 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 344 transitions. Word has length 33 [2024-10-31 21:58:21,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:21,080 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 344 transitions. [2024-10-31 21:58:21,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-10-31 21:58:21,080 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 344 transitions. [2024-10-31 21:58:21,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 21:58:21,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:21,081 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:21,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:58:21,082 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:58:21,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash 98964480, now seen corresponding path program 1 times [2024-10-31 21:58:21,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:21,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336917007] [2024-10-31 21:58:21,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:21,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:21,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:58:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:58:21,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:58:21,306 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 21:58:21,307 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 21:58:21,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:58:21,312 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 21:58:21,382 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:58:21,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:58:21 BoogieIcfgContainer [2024-10-31 21:58:21,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:58:21,386 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:58:21,387 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:58:21,387 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:58:21,387 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:18" (3/4) ... [2024-10-31 21:58:21,390 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 21:58:21,391 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:58:21,392 INFO L158 Benchmark]: Toolchain (without parser) took 6859.20ms. Allocated memory was 153.1MB in the beginning and 306.2MB in the end (delta: 153.1MB). Free memory was 120.8MB in the beginning and 182.0MB in the end (delta: -61.2MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. [2024-10-31 21:58:21,392 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 153.1MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:58:21,393 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1071.10ms. Allocated memory is still 153.1MB. Free memory was 120.2MB in the beginning and 72.7MB in the end (delta: 47.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-10-31 21:58:21,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 345.94ms. Allocated memory is still 153.1MB. Free memory was 72.7MB in the beginning and 106.4MB in the end (delta: -33.7MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2024-10-31 21:58:21,394 INFO L158 Benchmark]: Boogie Preprocessor took 302.86ms. Allocated memory is still 153.1MB. Free memory was 106.4MB in the beginning and 85.8MB in the end (delta: 20.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-10-31 21:58:21,394 INFO L158 Benchmark]: RCFGBuilder took 2496.01ms. Allocated memory was 153.1MB in the beginning and 306.2MB in the end (delta: 153.1MB). Free memory was 85.8MB in the beginning and 180.2MB in the end (delta: -94.4MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. [2024-10-31 21:58:21,395 INFO L158 Benchmark]: TraceAbstraction took 2628.87ms. Allocated memory is still 306.2MB. Free memory was 179.2MB in the beginning and 182.0MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:58:21,395 INFO L158 Benchmark]: Witness Printer took 4.77ms. Allocated memory is still 306.2MB. Free memory is still 182.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:58:21,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 153.1MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1071.10ms. Allocated memory is still 153.1MB. Free memory was 120.2MB in the beginning and 72.7MB in the end (delta: 47.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 345.94ms. Allocated memory is still 153.1MB. Free memory was 72.7MB in the beginning and 106.4MB in the end (delta: -33.7MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 302.86ms. Allocated memory is still 153.1MB. Free memory was 106.4MB in the beginning and 85.8MB in the end (delta: 20.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2496.01ms. Allocated memory was 153.1MB in the beginning and 306.2MB in the end (delta: 153.1MB). Free memory was 85.8MB in the beginning and 180.2MB in the end (delta: -94.4MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2628.87ms. Allocated memory is still 306.2MB. Free memory was 179.2MB in the beginning and 182.0MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.77ms. Allocated memory is still 306.2MB. Free memory is still 182.0MB. 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 300. 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_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 4); [L30] const SORT_10 msb_SORT_10 = (SORT_10)1 << (4 - 1); [L32] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 32); [L33] const SORT_16 msb_SORT_16 = (SORT_16)1 << (32 - 1); [L35] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 7); [L36] const SORT_32 msb_SORT_32 = (SORT_32)1 << (7 - 1); [L38] const SORT_40 mask_SORT_40 = (SORT_40)-1 >> (sizeof(SORT_40) * 8 - 9); [L39] const SORT_40 msb_SORT_40 = (SORT_40)1 << (9 - 1); [L41] const SORT_60 mask_SORT_60 = (SORT_60)-1 >> (sizeof(SORT_60) * 8 - 20); [L42] const SORT_60 msb_SORT_60 = (SORT_60)1 << (20 - 1); [L44] const SORT_357 mask_SORT_357 = (SORT_357)-1 >> (sizeof(SORT_357) * 8 - 2); [L45] const SORT_357 msb_SORT_357 = (SORT_357)1 << (2 - 1); [L47] const SORT_359 mask_SORT_359 = (SORT_359)-1 >> (sizeof(SORT_359) * 8 - 3); [L48] const SORT_359 msb_SORT_359 = (SORT_359)1 << (3 - 1); [L50] const SORT_1 var_13 = 0; [L51] const SORT_16 var_18 = 1; [L52] const SORT_16 var_23 = 0; [L53] const SORT_1 var_28 = 1; [L54] const SORT_32 var_33 = 0; [L55] const SORT_40 var_41 = 0; [L56] const SORT_10 var_48 = 0; [L57] const SORT_16 var_67 = 31; [L58] const SORT_16 var_71 = 32; [L59] const SORT_10 var_74 = 3; [L60] const SORT_16 var_90 = 2; [L61] const SORT_10 var_96 = 5; [L62] const SORT_10 var_117 = 7; [L63] const SORT_10 var_136 = 9; [L64] const SORT_32 var_233 = 4; [L65] const SORT_10 var_235 = 2; [L66] const SORT_32 var_254 = 1; [L67] const SORT_16 var_256 = 191; [L68] const SORT_10 var_259 = 6; [L69] const SORT_10 var_282 = 4; [L70] const SORT_10 var_307 = 8; [L71] const SORT_40 var_315 = 1; [L72] const SORT_10 var_321 = 10; [L73] const SORT_10 var_329 = 1; [L75] SORT_1 input_2; [L76] SORT_1 input_3; [L77] SORT_1 input_4; [L78] SORT_1 input_5; [L79] SORT_1 input_6; [L80] SORT_1 input_7; [L81] SORT_1 input_8; [L82] SORT_1 input_9; [L83] SORT_10 input_11; [L84] SORT_10 input_12; [L85] SORT_1 input_38; [L86] SORT_1 input_44; [L87] SORT_1 input_46; [L88] SORT_1 input_52; [L89] SORT_1 input_54; [L90] SORT_1 input_56; [L91] SORT_1 input_58; [L92] SORT_60 input_61; [L93] SORT_1 input_63; [L94] SORT_1 input_64; [L95] SORT_1 input_65; [L96] SORT_1 input_77; [L97] SORT_1 input_82; [L98] SORT_1 input_86; [L99] SORT_1 input_87; [L100] SORT_1 input_88; [L101] SORT_1 input_99; [L102] SORT_1 input_104; [L103] SORT_1 input_108; [L104] SORT_1 input_109; [L105] SORT_1 input_110; [L106] SORT_1 input_120; [L107] SORT_1 input_125; [L108] SORT_1 input_127; [L109] SORT_1 input_128; [L110] SORT_1 input_129; [L111] SORT_1 input_139; [L112] SORT_1 input_144; [L113] SORT_1 input_151; [L114] SORT_1 input_155; [L115] SORT_1 input_156; [L116] SORT_1 input_157; [L117] SORT_1 input_164; [L118] SORT_1 input_169; [L119] SORT_1 input_173; [L120] SORT_1 input_174; [L121] SORT_1 input_175; [L122] SORT_1 input_182; [L123] SORT_1 input_187; [L124] SORT_1 input_191; [L125] SORT_1 input_192; [L126] SORT_1 input_193; [L127] SORT_1 input_200; [L128] SORT_1 input_205; [L129] SORT_1 input_207; [L130] SORT_1 input_208; [L131] SORT_1 input_209; [L132] SORT_1 input_216; [L133] SORT_1 input_221; [L134] SORT_1 input_228; [L135] SORT_32 input_232; [L136] SORT_32 input_238; [L137] SORT_32 input_242; [L138] SORT_32 input_249; [L139] SORT_32 input_253; [L140] SORT_32 input_262; [L141] SORT_32 input_264; [L142] SORT_32 input_271; [L143] SORT_32 input_278; [L144] SORT_32 input_285; [L145] SORT_32 input_292; [L146] SORT_32 input_296; [L147] SORT_32 input_303; [L148] SORT_32 input_311; [L149] SORT_40 input_324; [L150] SORT_10 input_328; [L151] SORT_10 input_334; [L152] SORT_10 input_340; [L153] SORT_10 input_344; [L154] SORT_10 input_346; [L155] SORT_10 input_350; [L156] SORT_10 input_363; [L157] SORT_10 input_367; [L158] SORT_10 input_369; [L159] SORT_10 input_373; [L160] SORT_10 input_377; [L161] SORT_10 input_381; [L162] SORT_10 input_385; [L163] SORT_10 input_389; [L164] SORT_10 input_406; [L166] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L166] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L167] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L167] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L168] EXPR __VERIFIER_nondet_uchar() & mask_SORT_32 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L168] SORT_32 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L169] EXPR __VERIFIER_nondet_uchar() & mask_SORT_32 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L169] SORT_32 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L170] EXPR __VERIFIER_nondet_ushort() & mask_SORT_40 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L170] SORT_40 state_42 = __VERIFIER_nondet_ushort() & mask_SORT_40; [L171] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L171] SORT_10 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L173] SORT_1 init_15_arg_1 = var_13; [L174] state_14 = init_15_arg_1 [L175] SORT_1 init_21_arg_1 = var_13; [L176] state_20 = init_21_arg_1 [L177] SORT_32 init_35_arg_1 = var_33; [L178] state_34 = init_35_arg_1 [L179] SORT_32 init_37_arg_1 = var_33; [L180] state_36 = init_37_arg_1 [L181] SORT_40 init_43_arg_1 = var_41; [L182] state_42 = init_43_arg_1 [L183] SORT_10 init_50_arg_1 = var_48; [L184] state_49 = init_50_arg_1 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L187] input_2 = __VERIFIER_nondet_uchar() [L188] input_3 = __VERIFIER_nondet_uchar() [L189] input_4 = __VERIFIER_nondet_uchar() [L190] input_5 = __VERIFIER_nondet_uchar() [L191] input_6 = __VERIFIER_nondet_uchar() [L192] EXPR input_6 & mask_SORT_1 VAL [mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L192] input_6 = input_6 & mask_SORT_1 [L193] input_7 = __VERIFIER_nondet_uchar() [L194] input_8 = __VERIFIER_nondet_uchar() [L195] input_9 = __VERIFIER_nondet_uchar() [L196] EXPR input_9 & mask_SORT_1 VAL [input_6=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L196] input_9 = input_9 & mask_SORT_1 [L197] input_11 = __VERIFIER_nondet_uchar() [L198] input_12 = __VERIFIER_nondet_uchar() [L199] input_38 = __VERIFIER_nondet_uchar() [L200] input_44 = __VERIFIER_nondet_uchar() [L201] input_46 = __VERIFIER_nondet_uchar() [L202] input_52 = __VERIFIER_nondet_uchar() [L203] input_54 = __VERIFIER_nondet_uchar() [L204] input_56 = __VERIFIER_nondet_uchar() [L205] input_58 = __VERIFIER_nondet_uchar() [L206] input_61 = __VERIFIER_nondet_uint() [L207] input_63 = __VERIFIER_nondet_uchar() [L208] input_64 = __VERIFIER_nondet_uchar() [L209] input_65 = __VERIFIER_nondet_uchar() [L210] input_77 = __VERIFIER_nondet_uchar() [L211] input_82 = __VERIFIER_nondet_uchar() [L212] input_86 = __VERIFIER_nondet_uchar() [L213] input_87 = __VERIFIER_nondet_uchar() [L214] input_88 = __VERIFIER_nondet_uchar() [L215] input_99 = __VERIFIER_nondet_uchar() [L216] input_104 = __VERIFIER_nondet_uchar() [L217] input_108 = __VERIFIER_nondet_uchar() [L218] input_109 = __VERIFIER_nondet_uchar() [L219] input_110 = __VERIFIER_nondet_uchar() [L220] input_120 = __VERIFIER_nondet_uchar() [L221] input_125 = __VERIFIER_nondet_uchar() [L222] input_127 = __VERIFIER_nondet_uchar() [L223] input_128 = __VERIFIER_nondet_uchar() [L224] input_129 = __VERIFIER_nondet_uchar() [L225] input_139 = __VERIFIER_nondet_uchar() [L226] input_144 = __VERIFIER_nondet_uchar() [L227] input_151 = __VERIFIER_nondet_uchar() [L228] input_155 = __VERIFIER_nondet_uchar() [L229] input_156 = __VERIFIER_nondet_uchar() [L230] input_157 = __VERIFIER_nondet_uchar() [L231] input_164 = __VERIFIER_nondet_uchar() [L232] input_169 = __VERIFIER_nondet_uchar() [L233] input_173 = __VERIFIER_nondet_uchar() [L234] input_174 = __VERIFIER_nondet_uchar() [L235] input_175 = __VERIFIER_nondet_uchar() [L236] input_182 = __VERIFIER_nondet_uchar() [L237] input_187 = __VERIFIER_nondet_uchar() [L238] input_191 = __VERIFIER_nondet_uchar() [L239] input_192 = __VERIFIER_nondet_uchar() [L240] input_193 = __VERIFIER_nondet_uchar() [L241] input_200 = __VERIFIER_nondet_uchar() [L242] input_205 = __VERIFIER_nondet_uchar() [L243] input_207 = __VERIFIER_nondet_uchar() [L244] input_208 = __VERIFIER_nondet_uchar() [L245] input_209 = __VERIFIER_nondet_uchar() [L246] input_216 = __VERIFIER_nondet_uchar() [L247] input_221 = __VERIFIER_nondet_uchar() [L248] input_228 = __VERIFIER_nondet_uchar() [L249] input_232 = __VERIFIER_nondet_uchar() [L250] input_238 = __VERIFIER_nondet_uchar() [L251] input_242 = __VERIFIER_nondet_uchar() [L252] input_249 = __VERIFIER_nondet_uchar() [L253] input_253 = __VERIFIER_nondet_uchar() [L254] input_262 = __VERIFIER_nondet_uchar() [L255] input_264 = __VERIFIER_nondet_uchar() [L256] input_271 = __VERIFIER_nondet_uchar() [L257] input_278 = __VERIFIER_nondet_uchar() [L258] input_285 = __VERIFIER_nondet_uchar() [L259] input_292 = __VERIFIER_nondet_uchar() [L260] input_296 = __VERIFIER_nondet_uchar() [L261] input_303 = __VERIFIER_nondet_uchar() [L262] input_311 = __VERIFIER_nondet_uchar() [L263] input_324 = __VERIFIER_nondet_ushort() [L264] input_328 = __VERIFIER_nondet_uchar() [L265] input_334 = __VERIFIER_nondet_uchar() [L266] input_340 = __VERIFIER_nondet_uchar() [L267] input_344 = __VERIFIER_nondet_uchar() [L268] input_346 = __VERIFIER_nondet_uchar() [L269] input_350 = __VERIFIER_nondet_uchar() [L270] input_363 = __VERIFIER_nondet_uchar() [L271] input_367 = __VERIFIER_nondet_uchar() [L272] input_369 = __VERIFIER_nondet_uchar() [L273] input_373 = __VERIFIER_nondet_uchar() [L274] input_377 = __VERIFIER_nondet_uchar() [L275] input_381 = __VERIFIER_nondet_uchar() [L276] input_385 = __VERIFIER_nondet_uchar() [L277] input_389 = __VERIFIER_nondet_uchar() [L278] input_406 = __VERIFIER_nondet_uchar() [L281] SORT_1 var_17_arg_0 = state_14; VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_17_arg_0=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L282] EXPR var_17_arg_0 & mask_SORT_1 VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L282] var_17_arg_0 = var_17_arg_0 & mask_SORT_1 [L283] SORT_16 var_17 = var_17_arg_0; [L284] SORT_16 var_19_arg_0 = var_17; [L285] SORT_16 var_19_arg_1 = var_18; [L286] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L287] SORT_1 var_22_arg_0 = state_20; VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_19=0, var_22_arg_0=0, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L288] EXPR var_22_arg_0 & mask_SORT_1 VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_19=0, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L288] var_22_arg_0 = var_22_arg_0 & mask_SORT_1 [L289] SORT_16 var_22 = var_22_arg_0; [L290] SORT_16 var_24_arg_0 = var_22; [L291] SORT_16 var_24_arg_1 = var_23; [L292] SORT_1 var_24 = var_24_arg_0 == var_24_arg_1; [L293] SORT_1 var_25_arg_0 = var_19; [L294] SORT_1 var_25_arg_1 = var_24; VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_25_arg_0=0, var_25_arg_1=1, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L295] EXPR var_25_arg_0 | var_25_arg_1 VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L295] SORT_1 var_25 = var_25_arg_0 | var_25_arg_1; [L296] SORT_1 var_29_arg_0 = var_25; [L297] SORT_1 var_29 = ~var_29_arg_0; [L298] SORT_1 var_30_arg_0 = var_28; [L299] SORT_1 var_30_arg_1 = var_29; VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_30_arg_0=1, var_30_arg_1=-2, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L300] EXPR var_30_arg_0 & var_30_arg_1 VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L300] SORT_1 var_30 = var_30_arg_0 & var_30_arg_1; [L301] EXPR var_30 & mask_SORT_1 VAL [input_6=0, input_9=0, mask_SORT_10=15, mask_SORT_1=1, mask_SORT_32=127, mask_SORT_357=3, mask_SORT_359=7, mask_SORT_40=511, state_14=0, state_20=0, state_34=0, state_36=0, state_42=0, state_49=0, var_117=7, var_136=9, var_13=0, var_18=1, var_233=4, var_235=2, var_23=0, var_254=1, var_256=191, var_259=6, var_282=4, var_28=1, var_307=8, var_315=1, var_321=10, var_329=1, var_33=0, var_41=0, var_48=0, var_67=31, var_71=32, var_74=3, var_90=2, var_96=5] [L301] var_30 = var_30 & mask_SORT_1 [L302] SORT_1 bad_31_arg_0 = var_30; [L303] CALL __VERIFIER_assert(!(bad_31_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 230 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 3283 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2289 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 994 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2024-10-31 21:58:21,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU --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 a68330c23bd8fa71b4f2c1a72229a125c9c545dc64c1e4d5015a2916cb213688 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:58:23,928 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:58:24,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-31 21:58:24,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:58:24,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:58:24,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:58:24,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:58:24,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:58:24,126 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:58:24,127 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:58:24,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:58:24,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:58:24,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:58:24,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:58:24,133 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:58:24,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:58:24,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:58:24,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:58:24,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:58:24,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:58:24,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:58:24,138 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 21:58:24,139 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 21:58:24,139 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:58:24,140 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 21:58:24,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:58:24,140 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:58:24,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:58:24,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:58:24,142 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:58:24,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:58:24,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:24,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:58:24,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:58:24,144 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:58:24,144 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 21:58:24,144 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 21:58:24,145 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:58:24,145 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:58:24,145 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:58:24,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:58:24,147 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 21:58:24,147 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_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a68330c23bd8fa71b4f2c1a72229a125c9c545dc64c1e4d5015a2916cb213688 [2024-10-31 21:58:24,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:58:24,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:58:24,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:58:24,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:58:24,659 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:58:24,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c Unable to find full path for "g++" [2024-10-31 21:58:27,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:58:27,416 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:58:27,417 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c [2024-10-31 21:58:27,436 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/data/3bb1aed81/feca919c4942416db450139ed74372fd/FLAGe0b455fe6 [2024-10-31 21:58:27,618 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/data/3bb1aed81/feca919c4942416db450139ed74372fd [2024-10-31 21:58:27,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:58:27,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:58:27,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:27,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:58:27,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:58:27,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:27" (1/1) ... [2024-10-31 21:58:27,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678dc48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:27, skipping insertion in model container [2024-10-31 21:58:27,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:27" (1/1) ... [2024-10-31 21:58:27,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:58:27,990 WARN L251 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_029fe82a-df28-4dc3-8c91-363d79469bc3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c[1246,1259] [2024-10-31 21:58:28,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:28,364 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:58:28,376 WARN L251 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_029fe82a-df28-4dc3-8c91-363d79469bc3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_DAIO.c[1246,1259] [2024-10-31 21:58:28,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:28,562 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:58:28,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28 WrapperNode [2024-10-31 21:58:28,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:28,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:28,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:58:28,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:58:28,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,684 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1376 [2024-10-31 21:58:28,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:28,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:58:28,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:58:28,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:58:28,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,709 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,745 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:58:28,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,749 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,859 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,870 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:58:28,900 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:58:28,900 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:58:28,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:58:28,901 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (1/1) ... [2024-10-31 21:58:28,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:28,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:28,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:28,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:58:29,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:58:29,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 21:58:29,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:58:29,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:58:29,346 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:58:29,349 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:58:30,351 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-10-31 21:58:30,353 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:58:30,367 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:58:30,367 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 21:58:30,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:30 BoogieIcfgContainer [2024-10-31 21:58:30,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:58:30,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:58:30,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:58:30,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:58:30,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:58:27" (1/3) ... [2024-10-31 21:58:30,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d6cb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:30, skipping insertion in model container [2024-10-31 21:58:30,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:28" (2/3) ... [2024-10-31 21:58:30,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d6cb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:30, skipping insertion in model container [2024-10-31 21:58:30,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:30" (3/3) ... [2024-10-31 21:58:30,381 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.v_DAIO.c [2024-10-31 21:58:30,404 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:58:30,404 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 21:58:30,473 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:58:30,481 INFO L333 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, 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;@69c5ee47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:58:30,482 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 21:58:30,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2024-10-31 21:58:30,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-31 21:58:30,491 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:30,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 21:58:30,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:58:30,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:30,497 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-10-31 21:58:30,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:58:30,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023049248] [2024-10-31 21:58:30,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:30,512 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 [2024-10-31 21:58:30,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:58:30,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 21:58:30,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 21:58:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:30,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-31 21:58:30,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:31,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:31,088 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:58:31,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 21:58:31,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023049248] [2024-10-31 21:58:31,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023049248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:31,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:31,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:31,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312655412] [2024-10-31 21:58:31,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:31,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:31,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 21:58:31,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:31,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:31,134 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-10-31 21:58:31,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:31,221 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-10-31 21:58:31,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:58:31,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2024-10-31 21:58:31,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:31,231 INFO L225 Difference]: With dead ends: 18 [2024-10-31 21:58:31,231 INFO L226 Difference]: Without dead ends: 10 [2024-10-31 21:58:31,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:58:31,240 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:31,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:58:31,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-10-31 21:58:31,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-10-31 21:58:31,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-10-31 21:58:31,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-10-31 21:58:31,275 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-10-31 21:58:31,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:31,276 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-10-31 21:58:31,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-10-31 21:58:31,277 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-10-31 21:58:31,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 21:58:31,278 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:31,278 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:31,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 21:58:31,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 21:58:31,481 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 21:58:31,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:31,482 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-10-31 21:58:31,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 21:58:31,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253054629] [2024-10-31 21:58:31,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:31,484 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 [2024-10-31 21:58:31,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 21:58:31,487 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 21:58:31,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029fe82a-df28-4dc3-8c91-363d79469bc3/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 21:58:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:32,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-31 21:58:32,015 INFO L278 TraceCheckSpWp]: Computing forward predicates...