./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme --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 860a86adaee5a68a8179b30e590ccdfc140c947e3c27f31baed5d0226260962e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:10,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:11,045 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 12:00:11,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:11,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:11,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:11,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:11,098 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:11,100 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:11,105 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:11,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:11,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:11,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:11,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:11,110 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:11,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:11,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:11,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:11,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:11,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:11,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:11,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:11,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:11,114 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:11,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:11,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:11,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:11,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:11,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:11,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:11,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:11,120 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:11,120 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:11,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:00:11,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:11,121 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:11,121 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:11,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:11,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:11,139 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_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 860a86adaee5a68a8179b30e590ccdfc140c947e3c27f31baed5d0226260962e [2023-11-26 12:00:11,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:11,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:11,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:11,419 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:11,420 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:11,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2023-11-26 12:00:14,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:14,786 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:14,787 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2023-11-26 12:00:14,801 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/data/6fee9df2f/928d91f69b784f20a29209c2c01d2554/FLAGd77ce1b5d [2023-11-26 12:00:14,823 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/data/6fee9df2f/928d91f69b784f20a29209c2c01d2554 [2023-11-26 12:00:14,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:14,827 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:14,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:14,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:14,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:14,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:14" (1/1) ... [2023-11-26 12:00:14,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47067820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:14, skipping insertion in model container [2023-11-26 12:00:14,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:14" (1/1) ... [2023-11-26 12:00:14,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:15,060 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1250,1263] [2023-11-26 12:00:15,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:15,113 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:15,127 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1250,1263] [2023-11-26 12:00:15,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:15,170 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:15,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15 WrapperNode [2023-11-26 12:00:15,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:15,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:15,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:15,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:15,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,262 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 171 [2023-11-26 12:00:15,263 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:15,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:15,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:15,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:15,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,310 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]. [2023-11-26 12:00:15,318 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:15,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:15,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:15,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:15,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (1/1) ... [2023-11-26 12:00:15,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:15,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:15,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:15,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:15,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:15,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:00:15,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:15,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:15,520 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:15,523 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:16,024 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:16,076 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:16,077 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:00:16,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:16 BoogieIcfgContainer [2023-11-26 12:00:16,078 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:16,080 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:16,080 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:16,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:16,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:14" (1/3) ... [2023-11-26 12:00:16,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c84923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:16, skipping insertion in model container [2023-11-26 12:00:16,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:15" (2/3) ... [2023-11-26 12:00:16,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c84923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:16, skipping insertion in model container [2023-11-26 12:00:16,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:16" (3/3) ... [2023-11-26 12:00:16,088 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bit-vector.c [2023-11-26 12:00:16,109 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:16,109 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:00:16,182 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:16,188 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4313d47f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:16,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:00:16,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 34 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:16,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-26 12:00:16,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:16,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:16,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:16,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:16,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1361043331, now seen corresponding path program 1 times [2023-11-26 12:00:16,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:16,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288309812] [2023-11-26 12:00:16,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:16,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:16,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:16,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:16,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288309812] [2023-11-26 12:00:16,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288309812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:16,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:16,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:16,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101907287] [2023-11-26 12:00:16,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:16,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:16,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:16,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:16,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:16,905 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 34 states have internal predecessors, (55), 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 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:16,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:16,953 INFO L93 Difference]: Finished difference Result 63 states and 101 transitions. [2023-11-26 12:00:16,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:16,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2023-11-26 12:00:16,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:16,968 INFO L225 Difference]: With dead ends: 63 [2023-11-26 12:00:16,968 INFO L226 Difference]: Without dead ends: 35 [2023-11-26 12:00:16,972 INFO L412 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 [2023-11-26 12:00:16,977 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 1 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:16,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 139 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:17,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-26 12:00:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-26 12:00:17,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:17,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 53 transitions. [2023-11-26 12:00:17,025 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 53 transitions. Word has length 14 [2023-11-26 12:00:17,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:17,026 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 53 transitions. [2023-11-26 12:00:17,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:17,027 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2023-11-26 12:00:17,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 12:00:17,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:17,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:17,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:00:17,030 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:17,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:17,031 INFO L85 PathProgramCache]: Analyzing trace with hash -755604691, now seen corresponding path program 1 times [2023-11-26 12:00:17,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:17,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022504823] [2023-11-26 12:00:17,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:17,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:17,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:17,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:17,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022504823] [2023-11-26 12:00:17,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022504823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:17,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:17,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:17,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435862914] [2023-11-26 12:00:17,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:17,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:17,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:17,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:17,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:17,263 INFO L87 Difference]: Start difference. First operand 35 states and 53 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:17,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:17,316 INFO L93 Difference]: Finished difference Result 66 states and 99 transitions. [2023-11-26 12:00:17,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:17,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2023-11-26 12:00:17,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:17,319 INFO L225 Difference]: With dead ends: 66 [2023-11-26 12:00:17,319 INFO L226 Difference]: Without dead ends: 38 [2023-11-26 12:00:17,321 INFO L412 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 [2023-11-26 12:00:17,324 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 1 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 137 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 [2023-11-26 12:00:17,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 137 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:17,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-26 12:00:17,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2023-11-26 12:00:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.5277777777777777) internal successors, (55), 36 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:17,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 55 transitions. [2023-11-26 12:00:17,340 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 55 transitions. Word has length 15 [2023-11-26 12:00:17,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:17,342 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 55 transitions. [2023-11-26 12:00:17,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:17,342 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2023-11-26 12:00:17,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 12:00:17,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:17,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:17,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:00:17,346 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:17,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:17,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2135625949, now seen corresponding path program 1 times [2023-11-26 12:00:17,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:17,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314181244] [2023-11-26 12:00:17,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:17,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:17,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:17,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314181244] [2023-11-26 12:00:17,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314181244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:17,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:17,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:17,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638284498] [2023-11-26 12:00:17,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:17,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:00:17,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:17,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:00:17,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:17,646 INFO L87 Difference]: Start difference. First operand 37 states and 55 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:17,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:17,785 INFO L93 Difference]: Finished difference Result 97 states and 143 transitions. [2023-11-26 12:00:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:00:17,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2023-11-26 12:00:17,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:17,787 INFO L225 Difference]: With dead ends: 97 [2023-11-26 12:00:17,787 INFO L226 Difference]: Without dead ends: 67 [2023-11-26 12:00:17,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:00:17,789 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 124 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:17,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 102 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:17,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-26 12:00:17,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 40. [2023-11-26 12:00:17,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.4871794871794872) internal successors, (58), 39 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:17,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 58 transitions. [2023-11-26 12:00:17,797 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 58 transitions. Word has length 16 [2023-11-26 12:00:17,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:17,797 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 58 transitions. [2023-11-26 12:00:17,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:17,798 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2023-11-26 12:00:17,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 12:00:17,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:17,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:17,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:00:17,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:17,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:17,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1308192495, now seen corresponding path program 1 times [2023-11-26 12:00:17,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:17,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867718687] [2023-11-26 12:00:17,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:17,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:17,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:17,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:17,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867718687] [2023-11-26 12:00:17,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867718687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:17,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:17,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:17,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610016668] [2023-11-26 12:00:17,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:17,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:00:17,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:17,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:00:17,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:17,983 INFO L87 Difference]: Start difference. First operand 40 states and 58 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:18,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:18,014 INFO L93 Difference]: Finished difference Result 69 states and 101 transitions. [2023-11-26 12:00:18,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:18,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2023-11-26 12:00:18,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:18,015 INFO L225 Difference]: With dead ends: 69 [2023-11-26 12:00:18,016 INFO L226 Difference]: Without dead ends: 39 [2023-11-26 12:00:18,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:00:18,017 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 114 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:18,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 61 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:18,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-26 12:00:18,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2023-11-26 12:00:18,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 37 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2023-11-26 12:00:18,024 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 17 [2023-11-26 12:00:18,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:18,025 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2023-11-26 12:00:18,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:18,025 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2023-11-26 12:00:18,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 12:00:18,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:18,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:18,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:00:18,026 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:18,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:18,027 INFO L85 PathProgramCache]: Analyzing trace with hash 466814867, now seen corresponding path program 1 times [2023-11-26 12:00:18,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:18,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106487710] [2023-11-26 12:00:18,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:18,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:18,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:18,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:18,094 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:00:18,095 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:00:18,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:00:18,100 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-26 12:00:18,104 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:00:18,125 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-26 12:00:18,126 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-26 12:00:18,126 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-26 12:00:18,127 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-26 12:00:18,128 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-26 12:00:18,130 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-26 12:00:18,131 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-26 12:00:18,132 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-26 12:00:18,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:00:18 BoogieIcfgContainer [2023-11-26 12:00:18,141 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:00:18,142 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:00:18,142 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:00:18,142 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:00:18,143 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:16" (3/4) ... [2023-11-26 12:00:18,145 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:00:18,146 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:00:18,147 INFO L158 Benchmark]: Toolchain (without parser) took 3319.64ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 90.2MB in the beginning and 112.7MB in the end (delta: -22.5MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:18,147 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 136.3MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:18,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.77ms. Allocated memory is still 136.3MB. Free memory was 89.9MB in the beginning and 77.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:18,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.14ms. Allocated memory is still 136.3MB. Free memory was 77.6MB in the beginning and 73.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:18,148 INFO L158 Benchmark]: Boogie Preprocessor took 99.85ms. Allocated memory is still 136.3MB. Free memory was 73.5MB in the beginning and 70.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:18,149 INFO L158 Benchmark]: RCFGBuilder took 713.60ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 70.6MB in the beginning and 165.6MB in the end (delta: -95.0MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:18,149 INFO L158 Benchmark]: TraceAbstraction took 2061.27ms. Allocated memory is still 197.1MB. Free memory was 164.6MB in the beginning and 112.7MB in the end (delta: 51.9MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2023-11-26 12:00:18,150 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 197.1MB. Free memory is still 112.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:18,152 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 136.3MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.77ms. Allocated memory is still 136.3MB. Free memory was 89.9MB in the beginning and 77.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.14ms. Allocated memory is still 136.3MB. Free memory was 77.6MB in the beginning and 73.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.85ms. Allocated memory is still 136.3MB. Free memory was 73.5MB in the beginning and 70.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 713.60ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 70.6MB in the beginning and 165.6MB in the end (delta: -95.0MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2061.27ms. Allocated memory is still 197.1MB. Free memory was 164.6MB in the beginning and 112.7MB in the end (delta: 51.9MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 197.1MB. Free memory is still 112.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 67. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 3); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (3 - 1); [L32] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L33] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L35] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 2); [L36] const SORT_21 msb_SORT_21 = (SORT_21)1 << (2 - 1); [L38] const SORT_3 var_4 = 2; [L39] const SORT_7 var_9 = 2; [L40] const SORT_1 var_13 = 1; [L41] const SORT_3 var_17 = 6; [L43] SORT_1 input_2; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_21=2, msb_SORT_3=4, msb_SORT_7=2147483648, var_13=1, var_17=6, var_4=2, var_9=2] [L45] SORT_3 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L46] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 VAL [mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_21=2, msb_SORT_3=4, msb_SORT_7=2147483648, state_5=0, var_13=1, var_17=6, var_4=2, var_9=2] [L46] SORT_3 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L48] SORT_3 init_6_arg_1 = var_4; [L49] state_5 = init_6_arg_1 [L50] SORT_3 init_19_arg_1 = var_17; [L51] state_18 = init_19_arg_1 VAL [init_19_arg_1=6, init_6_arg_1=2, mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_21=2, msb_SORT_3=4, msb_SORT_7=2147483648, state_18=6, state_5=2, var_13=1, var_17=6, var_4=2, var_9=2] [L54] input_2 = __VERIFIER_nondet_uchar() [L57] SORT_3 var_8_arg_0 = state_5; VAL [init_19_arg_1=6, init_6_arg_1=2, mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_21=2, msb_SORT_3=4, msb_SORT_7=2147483648, state_18=6, state_5=2, var_13=1, var_17=6, var_4=2, var_8_arg_0=2, var_9=2] [L58] EXPR var_8_arg_0 & mask_SORT_3 VAL [init_19_arg_1=6, init_6_arg_1=2, mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_21=2, msb_SORT_3=4, msb_SORT_7=2147483648, state_18=6, state_5=2, var_13=1, var_17=6, var_4=2, var_8_arg_0=2, var_9=2] [L58] var_8_arg_0 = var_8_arg_0 & mask_SORT_3 [L59] SORT_7 var_8 = var_8_arg_0; [L60] SORT_7 var_10_arg_0 = var_8; [L61] SORT_7 var_10_arg_1 = var_9; [L62] SORT_1 var_10 = var_10_arg_0 >= var_10_arg_1; [L63] SORT_1 var_14_arg_0 = var_10; [L64] SORT_1 var_14 = ~var_14_arg_0; [L65] SORT_1 var_15_arg_0 = var_13; [L66] SORT_1 var_15_arg_1 = var_14; VAL [init_19_arg_1=6, init_6_arg_1=2, mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_21=2, msb_SORT_3=4, msb_SORT_7=2147483648, state_18=6, state_5=2, var_10=1, var_10_arg_0=2, var_10_arg_1=2, var_13=1, var_14=254, var_14_arg_0=1, var_15_arg_0=1, var_15_arg_1=254, var_17=6, var_4=2, var_8=2, var_8_arg_0=2, var_9=2] [L67] EXPR var_15_arg_0 & var_15_arg_1 VAL [init_19_arg_1=6, init_6_arg_1=2, mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_21=2, msb_SORT_3=4, msb_SORT_7=2147483648, state_18=6, state_5=2, var_10=1, var_10_arg_0=2, var_10_arg_1=2, var_13=1, var_14=254, var_14_arg_0=1, var_15_arg_0=1, var_15_arg_1=254, var_17=6, var_4=2, var_8=2, var_8_arg_0=2, var_9=2] [L67] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L68] EXPR var_15 & mask_SORT_1 VAL [init_19_arg_1=6, init_6_arg_1=2, mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_21=2, msb_SORT_3=4, msb_SORT_7=2147483648, state_18=6, state_5=2, var_10=1, var_10_arg_0=2, var_10_arg_1=2, var_13=1, var_14=254, var_14_arg_0=1, var_15=1, var_15_arg_0=1, var_15_arg_1=254, var_17=6, var_4=2, var_8=2, var_8_arg_0=2, var_9=2] [L68] var_15 = var_15 & mask_SORT_1 [L69] SORT_1 bad_16_arg_0 = var_15; [L70] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 439 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 260 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 179 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 29 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 12:00:18,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme --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 860a86adaee5a68a8179b30e590ccdfc140c947e3c27f31baed5d0226260962e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:20,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:21,007 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-26 12:00:21,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:21,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:21,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:21,068 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:21,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:21,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:21,075 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:21,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:21,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:21,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:21,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:21,080 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:21,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:21,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:21,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:21,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:21,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:21,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:21,084 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:00:21,084 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:00:21,085 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:00:21,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:21,086 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:21,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:21,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:21,088 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:21,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:21,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:21,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:21,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:21,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:21,091 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:00:21,092 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:00:21,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:21,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:21,094 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:21,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:21,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:21,095 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:00:21,095 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_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 860a86adaee5a68a8179b30e590ccdfc140c947e3c27f31baed5d0226260962e [2023-11-26 12:00:21,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:21,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:21,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:21,632 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:21,633 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:21,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2023-11-26 12:00:24,811 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:25,074 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:25,074 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2023-11-26 12:00:25,083 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/data/6487f2e60/89d4fb78e04c4ab888e19d7ed0a1bc95/FLAG166e738c3 [2023-11-26 12:00:25,099 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/data/6487f2e60/89d4fb78e04c4ab888e19d7ed0a1bc95 [2023-11-26 12:00:25,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:25,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:25,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:25,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:25,111 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:25,111 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1205911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25, skipping insertion in model container [2023-11-26 12:00:25,113 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,139 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:25,302 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1250,1263] [2023-11-26 12:00:25,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:25,396 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:25,415 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1250,1263] [2023-11-26 12:00:25,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:25,487 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:25,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25 WrapperNode [2023-11-26 12:00:25,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:25,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:25,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:25,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:25,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,551 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-11-26 12:00:25,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:25,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:25,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:25,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:25,565 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,581 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,609 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]. [2023-11-26 12:00:25,609 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,610 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:25,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:25,642 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:25,642 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:25,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:25,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:25,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:25,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:00:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:25,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:25,867 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:25,869 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:26,104 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:26,159 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:26,161 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:00:26,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:26 BoogieIcfgContainer [2023-11-26 12:00:26,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:26,164 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:26,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:26,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:26,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:25" (1/3) ... [2023-11-26 12:00:26,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5609b7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:26, skipping insertion in model container [2023-11-26 12:00:26,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25" (2/3) ... [2023-11-26 12:00:26,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5609b7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:26, skipping insertion in model container [2023-11-26 12:00:26,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:26" (3/3) ... [2023-11-26 12:00:26,174 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bit-vector.c [2023-11-26 12:00:26,197 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:26,197 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:00:26,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:26,262 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6da3468b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:26,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:00:26,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:26,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 12:00:26,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:26,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 12:00:26,279 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:26,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:26,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-26 12:00:26,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:26,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118310164] [2023-11-26 12:00:26,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:26,308 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:26,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:26,311 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:00:26,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 12:00:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:26,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-26 12:00:26,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:26,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:26,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:26,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:26,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118310164] [2023-11-26 12:00:26,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118310164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:26,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:26,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:26,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990193410] [2023-11-26 12:00:26,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:26,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:26,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:26,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:26,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:26,877 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:26,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:26,964 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-26 12:00:26,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:26,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-26 12:00:26,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:26,975 INFO L225 Difference]: With dead ends: 16 [2023-11-26 12:00:26,976 INFO L226 Difference]: Without dead ends: 9 [2023-11-26 12:00:26,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:26,983 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:26,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:27,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-26 12:00:27,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-26 12:00:27,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:27,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-26 12:00:27,020 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-26 12:00:27,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:27,020 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-26 12:00:27,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:27,021 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-26 12:00:27,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 12:00:27,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:27,022 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-26 12:00:27,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:27,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:27,225 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:27,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:27,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-26 12:00:27,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:27,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096932352] [2023-11-26 12:00:27,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:27,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:27,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:27,230 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:00:27,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 12:00:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:27,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-26 12:00:27,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:27,707 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:28,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:28,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096932352] [2023-11-26 12:00:28,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096932352] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:28,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:00:28,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-26 12:00:28,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267964220] [2023-11-26 12:00:28,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:28,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:00:28,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:28,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:00:28,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:00:28,103 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:28,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:28,312 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-26 12:00:28,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:00:28,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-26 12:00:28,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:28,314 INFO L225 Difference]: With dead ends: 14 [2023-11-26 12:00:28,314 INFO L226 Difference]: Without dead ends: 12 [2023-11-26 12:00:28,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:00:28,318 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:28,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:28,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-26 12:00:28,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-26 12:00:28,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 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) [2023-11-26 12:00:28,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-26 12:00:28,328 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-26 12:00:28,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:28,329 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-26 12:00:28,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:28,329 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-26 12:00:28,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:00:28,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:28,331 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-26 12:00:28,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/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)] Ended with exit code 0 [2023-11-26 12:00:28,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:28,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:28,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:28,534 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-26 12:00:28,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:00:28,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643109456] [2023-11-26 12:00:28,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:00:28,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:28,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:00:28,538 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:00:28,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/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 (4)] Waiting until timeout for monitored process [2023-11-26 12:00:28,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:00:28,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:00:28,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-26 12:00:28,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:29,002 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:29,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:29,408 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:29,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:00:29,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643109456] [2023-11-26 12:00:29,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643109456] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:29,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 12:00:29,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-26 12:00:29,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151392500] [2023-11-26 12:00:29,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:29,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:00:29,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:00:29,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:00:29,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:00:29,413 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:29,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:29,725 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2023-11-26 12:00:29,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:00:29,726 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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 10 [2023-11-26 12:00:29,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:29,726 INFO L225 Difference]: With dead ends: 11 [2023-11-26 12:00:29,726 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:00:29,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-26 12:00:29,728 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:29,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:29,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:00:29,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:00:29,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:29,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:00:29,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-11-26 12:00:29,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:29,730 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:00:29,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:00:29,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:00:29,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:00:29,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:00:29,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/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 (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:29,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:00:29,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:00:30,024 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:00:30,025 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-26 12:00:30,025 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-26 12:00:30,025 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-26 12:00:30,026 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 52 93) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (exists ((|ULTIMATE.start_main_~var_28_arg_1~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvor (_ bv4 32) ((_ zero_extend 24) |ULTIMATE.start_main_~var_28_arg_1~0#1|))) |ULTIMATE.start_main_~state_18~0#1|)) (exists ((|ULTIMATE.start_main_~var_24_arg_0~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~var_28_arg_1~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |ULTIMATE.start_main_~var_24_arg_0~0#1|) (_ bv2 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv3 32) ((_ zero_extend 24) ((_ extract 7 0) (bvashr ((_ zero_extend 24) ((_ extract 7 0) (bvor (_ bv4 32) ((_ zero_extend 24) |ULTIMATE.start_main_~var_28_arg_1~0#1|)))) (_ bv1 32))))))))) |ULTIMATE.start_main_~state_5~0#1|)) (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|) (= (_ bv2 32) |ULTIMATE.start_main_~var_9~0#1|) (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_21~0#1|)) [2023-11-26 12:00:30,027 INFO L899 garLoopResultBuilder]: For program point L52-3(lines 52 93) no Hoare annotation was computed. [2023-11-26 12:00:30,027 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:00:30,027 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-26 12:00:30,031 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-26 12:00:30,033 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:00:30,053 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_28_arg_1~0#1 : bv8 :: ~bvor~32(4bv32, ~zero_extend~32~8(ULTIMATE.start_main_~var_28_arg_1~0#1))[7:0] == ~state_18~0) could not be translated [2023-11-26 12:00:30,054 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_24_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_28_arg_1~0#1 : bv8 :: ~bvor~32(~bvshl~32(~zero_extend~32~8(ULTIMATE.start_main_~var_24_arg_0~0#1), 2bv32), ~zero_extend~32~8(~bvand~32(3bv32, ~zero_extend~32~8(~bvashr~32(~zero_extend~32~8(~bvor~32(4bv32, ~zero_extend~32~8(ULTIMATE.start_main_~var_28_arg_1~0#1))[7:0]), 1bv32)[7:0]))[7:0]))[7:0] == ~state_5~0) could not be translated [2023-11-26 12:00:30,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:00:30 BoogieIcfgContainer [2023-11-26 12:00:30,056 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:00:30,061 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:00:30,061 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:00:30,061 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:00:30,062 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:26" (3/4) ... [2023-11-26 12:00:30,064 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:00:30,075 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-26 12:00:30,076 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 12:00:30,076 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 12:00:30,076 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:00:30,179 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:00:30,179 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:00:30,180 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:00:30,180 INFO L158 Benchmark]: Toolchain (without parser) took 5076.99ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 94.8MB in the beginning and 88.1MB in the end (delta: 6.7MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,181 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 75.5MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:30,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.59ms. Allocated memory is still 119.5MB. Free memory was 94.6MB in the beginning and 82.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.76ms. Allocated memory is still 119.5MB. Free memory was 82.4MB in the beginning and 80.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,182 INFO L158 Benchmark]: Boogie Preprocessor took 86.98ms. Allocated memory is still 119.5MB. Free memory was 80.5MB in the beginning and 78.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,182 INFO L158 Benchmark]: RCFGBuilder took 520.68ms. Allocated memory is still 119.5MB. Free memory was 78.5MB in the beginning and 93.9MB in the end (delta: -15.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,183 INFO L158 Benchmark]: TraceAbstraction took 3892.15ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 92.9MB in the beginning and 92.3MB in the end (delta: 560.4kB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,183 INFO L158 Benchmark]: Witness Printer took 118.92ms. Allocated memory is still 144.7MB. Free memory was 92.3MB in the beginning and 88.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:30,187 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 75.5MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.59ms. Allocated memory is still 119.5MB. Free memory was 94.6MB in the beginning and 82.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.76ms. Allocated memory is still 119.5MB. Free memory was 82.4MB in the beginning and 80.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.98ms. Allocated memory is still 119.5MB. Free memory was 80.5MB in the beginning and 78.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.68ms. Allocated memory is still 119.5MB. Free memory was 78.5MB in the beginning and 93.9MB in the end (delta: -15.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3892.15ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 92.9MB in the beginning and 92.3MB in the end (delta: 560.4kB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Witness Printer took 118.92ms. Allocated memory is still 144.7MB. Free memory was 92.3MB in the beginning and 88.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_28_arg_1~0#1 : bv8 :: ~bvor~32(4bv32, ~zero_extend~32~8(ULTIMATE.start_main_~var_28_arg_1~0#1))[7:0] == ~state_18~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_24_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_28_arg_1~0#1 : bv8 :: ~bvor~32(~bvshl~32(~zero_extend~32~8(ULTIMATE.start_main_~var_24_arg_0~0#1), 2bv32), ~zero_extend~32~8(~bvand~32(3bv32, ~zero_extend~32~8(~bvashr~32(~zero_extend~32~8(~bvor~32(4bv32, ~zero_extend~32~8(ULTIMATE.start_main_~var_28_arg_1~0#1))[7:0]), 1bv32)[7:0]))[7:0]))[7:0] == ~state_5~0) could not be translated * 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 4 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 44 HoareAnnotationTreeSize, 1 FomulaSimplifications, 21 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 82 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 16 QuantifiedInterpolants, 1135 SizeOfPredicates, 74 NumberOfNonLiveVariables, 225 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/18 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((1 == mask_SORT_1) && (7 == mask_SORT_3)) && (2 == var_9)) && (3 == mask_SORT_21)) RESULT: Ultimate proved your program to be correct! [2023-11-26 12:00:30,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c122176e-8d01-4f60-a0c8-d7a8fab757ab/bin/uautomizer-verify-VRDe98Ueme/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 Writing output log to file Ultimate.log Result: TRUE