./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e188a971cba665e2b77b0e826b47d617ddf57bd12a8f8136f6d81bf903c7591b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:19:37,165 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:19:37,284 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:19:37,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:19:37,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:19:37,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:19:37,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:19:37,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:19:37,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:19:37,343 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:19:37,344 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:19:37,344 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:19:37,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:19:37,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:19:37,347 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:19:37,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:19:37,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:19:37,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:19:37,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:19:37,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:19:37,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:19:37,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:19:37,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:19:37,352 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:19:37,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:19:37,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:19:37,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:19:37,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:19:37,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:37,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:19:37,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:19:37,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:19:37,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:19:37,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:19:37,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:19:37,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:19:37,359 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:19:37,359 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:19:37,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:19:37,359 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_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e188a971cba665e2b77b0e826b47d617ddf57bd12a8f8136f6d81bf903c7591b [2023-11-21 22:19:37,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:19:37,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:19:37,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:19:37,707 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:19:37,708 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:19:37,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2023-11-21 22:19:40,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:19:41,220 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:19:41,222 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2023-11-21 22:19:41,238 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/data/9177d7275/b3eb04d110df41e6b62c11a33074f537/FLAG582c50c4a [2023-11-21 22:19:41,257 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/data/9177d7275/b3eb04d110df41e6b62c11a33074f537 [2023-11-21 22:19:41,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:19:41,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:19:41,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:41,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:19:41,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:19:41,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:41,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26053920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41, skipping insertion in model container [2023-11-21 22:19:41,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:41,337 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:19:41,520 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_96ac1910-d3fb-4db2-8429-827cd1f87310/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1245,1258] [2023-11-21 22:19:41,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:41,667 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:19:41,680 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_96ac1910-d3fb-4db2-8429-827cd1f87310/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1245,1258] [2023-11-21 22:19:41,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:41,780 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:19:41,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41 WrapperNode [2023-11-21 22:19:41,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:41,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:41,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:19:41,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:19:41,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:41,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:41,909 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 563 [2023-11-21 22:19:41,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:41,911 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:19:41,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:19:41,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:19:41,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:41,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:41,958 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:42,003 INFO L187 HeapSplitter]: Split 10 memory accesses to 2 slices as follows [2, 8] [2023-11-21 22:19:42,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:42,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:42,047 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:42,053 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:42,114 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:42,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:42,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:19:42,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:19:42,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:19:42,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:19:42,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (1/1) ... [2023-11-21 22:19:42,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:42,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:42,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:42,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:19:42,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:19:42,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:19:42,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:19:42,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:19:42,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:19:42,372 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:19:42,375 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:19:43,258 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:19:44,194 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:19:44,194 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:19:44,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:44 BoogieIcfgContainer [2023-11-21 22:19:44,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:19:44,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:19:44,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:19:44,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:19:44,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:19:41" (1/3) ... [2023-11-21 22:19:44,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378271f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:19:44, skipping insertion in model container [2023-11-21 22:19:44,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:41" (2/3) ... [2023-11-21 22:19:44,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378271f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:19:44, skipping insertion in model container [2023-11-21 22:19:44,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:44" (3/3) ... [2023-11-21 22:19:44,211 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b02.c [2023-11-21 22:19:44,232 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:19:44,232 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:19:44,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:19:44,306 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;@78d81efe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:19:44,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:19:44,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:44,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:19:44,319 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:44,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:19:44,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:19:44,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:44,330 INFO L85 PathProgramCache]: Analyzing trace with hash 15899968, now seen corresponding path program 1 times [2023-11-21 22:19:44,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:44,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785106364] [2023-11-21 22:19:44,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:44,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:46,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:46,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785106364] [2023-11-21 22:19:46,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785106364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:46,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:46,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:19:46,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010335587] [2023-11-21 22:19:46,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:46,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:19:46,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:46,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:19:46,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:46,357 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:46,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:46,741 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2023-11-21 22:19:46,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:19:46,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-21 22:19:46,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:46,752 INFO L225 Difference]: With dead ends: 15 [2023-11-21 22:19:46,753 INFO L226 Difference]: Without dead ends: 9 [2023-11-21 22:19:46,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:19:46,763 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:46,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:19:46,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-21 22:19:46,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-21 22:19:46,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:46,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-21 22:19:46,802 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-21 22:19:46,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:46,802 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-21 22:19:46,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:46,803 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-21 22:19:46,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:19:46,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:46,803 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-21 22:19:46,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:19:46,804 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:19:46,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:46,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1246337826, now seen corresponding path program 1 times [2023-11-21 22:19:46,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:46,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590070922] [2023-11-21 22:19:46,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:46,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:50,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:19:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:19:51,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:19:51,930 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:19:51,932 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:19:51,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:19:51,938 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 22:19:51,943 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:19:52,016 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 22:19:52,018 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 22:19:52,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:19:52 BoogieIcfgContainer [2023-11-21 22:19:52,049 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:19:52,049 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:19:52,050 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:19:52,050 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:19:52,051 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:44" (3/4) ... [2023-11-21 22:19:52,055 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:19:52,057 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:19:52,058 INFO L158 Benchmark]: Toolchain (without parser) took 10792.42ms. Allocated memory was 138.4MB in the beginning and 276.8MB in the end (delta: 138.4MB). Free memory was 94.6MB in the beginning and 80.5MB in the end (delta: 14.2MB). Peak memory consumption was 154.2MB. Max. memory is 16.1GB. [2023-11-21 22:19:52,060 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 138.4MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:19:52,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.01ms. Allocated memory is still 138.4MB. Free memory was 94.3MB in the beginning and 75.8MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:19:52,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.68ms. Allocated memory is still 138.4MB. Free memory was 75.8MB in the beginning and 64.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:19:52,067 INFO L158 Benchmark]: Boogie Preprocessor took 224.51ms. Allocated memory is still 138.4MB. Free memory was 64.2MB in the beginning and 103.9MB in the end (delta: -39.7MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2023-11-21 22:19:52,067 INFO L158 Benchmark]: RCFGBuilder took 2061.72ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 103.9MB in the beginning and 109.1MB in the end (delta: -5.2MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. [2023-11-21 22:19:52,068 INFO L158 Benchmark]: TraceAbstraction took 7848.54ms. Allocated memory was 190.8MB in the beginning and 276.8MB in the end (delta: 86.0MB). Free memory was 108.1MB in the beginning and 80.5MB in the end (delta: 27.6MB). Peak memory consumption was 119.9MB. Max. memory is 16.1GB. [2023-11-21 22:19:52,069 INFO L158 Benchmark]: Witness Printer took 7.60ms. Allocated memory is still 276.8MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:19:52,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 138.4MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 512.01ms. Allocated memory is still 138.4MB. Free memory was 94.3MB in the beginning and 75.8MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.68ms. Allocated memory is still 138.4MB. Free memory was 75.8MB in the beginning and 64.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 224.51ms. Allocated memory is still 138.4MB. Free memory was 64.2MB in the beginning and 103.9MB in the end (delta: -39.7MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * RCFGBuilder took 2061.72ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 103.9MB in the beginning and 109.1MB in the end (delta: -5.2MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7848.54ms. Allocated memory was 190.8MB in the beginning and 276.8MB in the end (delta: 86.0MB). Free memory was 108.1MB in the beginning and 80.5MB in the end (delta: 27.6MB). Peak memory consumption was 119.9MB. Max. memory is 16.1GB. * Witness Printer took 7.60ms. Allocated memory is still 276.8MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 88, overapproximation of bitwiseAnd at line 73. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L30] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L32] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 3); [L33] const SORT_12 msb_SORT_12 = (SORT_12)1 << (3 - 1); [L35] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 2); [L36] const SORT_47 msb_SORT_47 = (SORT_47)1 << (2 - 1); [L38] const SORT_1 var_4 = 0; [L39] const SORT_7 var_9 = 1; [L40] const SORT_12 var_13 = 0; [L41] const SORT_1 var_21 = 1; [L42] const SORT_12 var_28 = 2; [L43] const SORT_12 var_31 = 1; [L44] const SORT_12 var_35 = 4; [L45] const SORT_12 var_38 = 6; [L46] const SORT_12 var_41 = 5; [L47] const SORT_12 var_45 = 3; [L48] const SORT_7 var_57 = 0; [L50] SORT_1 input_2; [L51] SORT_1 input_3; [L52] SORT_12 input_55; [L53] SORT_12 input_62; [L54] SORT_12 input_75; [L56] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L56] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] EXPR __VERIFIER_nondet_uchar() & mask_SORT_12 [L57] SORT_12 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_12; [L59] SORT_1 init_6_arg_1 = var_4; [L60] state_5 = init_6_arg_1 [L61] SORT_12 init_15_arg_1 = var_13; [L62] state_14 = init_15_arg_1 VAL [init_15_arg_1=0, init_6_arg_1=0, mask_SORT_12=7, mask_SORT_1=1, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_12=4, msb_SORT_1=1, msb_SORT_47=2, msb_SORT_7=2147483648, state_14=0, state_5=0, var_13=0, var_21=1, var_28=2, var_31=1, var_35=4, var_38=6, var_41=5, var_45=3, var_4=0, var_57=0, var_9=1] [L65] input_2 = __VERIFIER_nondet_uchar() [L66] input_3 = __VERIFIER_nondet_uchar() [L67] input_55 = __VERIFIER_nondet_uchar() [L68] input_62 = __VERIFIER_nondet_uchar() [L69] input_75 = __VERIFIER_nondet_uchar() [L72] SORT_1 var_8_arg_0 = state_5; [L73] EXPR var_8_arg_0 & mask_SORT_1 [L73] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 [L74] SORT_7 var_8 = var_8_arg_0; [L75] SORT_7 var_10_arg_0 = var_8; [L76] SORT_7 var_10_arg_1 = var_9; [L77] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L78] SORT_1 var_11_arg_0 = var_10; [L79] SORT_1 var_11 = ~var_11_arg_0; [L80] SORT_12 var_16_arg_0 = state_14; [L81] EXPR var_16_arg_0 & mask_SORT_12 [L81] var_16_arg_0 = var_16_arg_0 & mask_SORT_12 [L82] SORT_7 var_16 = var_16_arg_0; [L83] SORT_7 var_17_arg_0 = var_16; [L84] SORT_7 var_17_arg_1 = var_9; [L85] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L86] SORT_1 var_18_arg_0 = var_11; [L87] SORT_1 var_18_arg_1 = var_17; [L88] EXPR var_18_arg_0 | var_18_arg_1 [L88] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L89] SORT_1 var_22_arg_0 = var_18; [L90] SORT_1 var_22 = ~var_22_arg_0; [L91] SORT_1 var_23_arg_0 = var_21; [L92] SORT_1 var_23_arg_1 = var_22; [L93] EXPR var_23_arg_0 & var_23_arg_1 [L93] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L94] EXPR var_23 & mask_SORT_1 [L94] var_23 = var_23 & mask_SORT_1 [L95] SORT_1 bad_24_arg_0 = var_23; [L96] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L96] RET __VERIFIER_assert(!(bad_24_arg_0)) [L98] SORT_12 var_42_arg_0 = state_14; [L99] SORT_12 var_42_arg_1 = var_41; [L100] SORT_1 var_42 = var_42_arg_0 == var_42_arg_1; [L101] SORT_12 var_39_arg_0 = state_14; [L102] SORT_12 var_39_arg_1 = var_38; [L103] SORT_1 var_39 = var_39_arg_0 == var_39_arg_1; [L104] SORT_1 var_43_arg_0 = var_42; [L105] SORT_1 var_43_arg_1 = var_39; [L106] EXPR var_43_arg_0 | var_43_arg_1 [L106] SORT_1 var_43 = var_43_arg_0 | var_43_arg_1; [L107] EXPR var_43 & mask_SORT_1 [L107] var_43 = var_43 & mask_SORT_1 [L108] SORT_12 var_36_arg_0 = state_14; [L109] SORT_12 var_36_arg_1 = var_35; [L110] SORT_1 var_36 = var_36_arg_0 == var_36_arg_1; [L111] SORT_12 var_46_arg_0 = state_14; [L112] SORT_12 var_46_arg_1 = var_45; [L113] SORT_1 var_46 = var_46_arg_0 == var_46_arg_1; [L114] SORT_1 var_48_arg_0 = var_36; [L115] SORT_1 var_48_arg_1 = var_46; [L116] EXPR ((SORT_47)var_48_arg_0 << 1) | var_48_arg_1 [L116] SORT_47 var_48 = ((SORT_47)var_48_arg_0 << 1) | var_48_arg_1; [L117] EXPR var_48 & mask_SORT_47 [L117] var_48 = var_48 & mask_SORT_47 [L118] SORT_1 var_49_arg_0 = var_43; [L119] SORT_47 var_49_arg_1 = var_48; [L120] EXPR ((SORT_12)var_49_arg_0 << 2) | var_49_arg_1 [L120] SORT_12 var_49 = ((SORT_12)var_49_arg_0 << 2) | var_49_arg_1; [L121] EXPR var_49 & mask_SORT_12 [L121] var_49 = var_49 & mask_SORT_12 [L122] SORT_12 var_50_arg_0 = var_49; [L123] SORT_1 var_50 = var_50_arg_0 != 0; [L124] SORT_1 var_40_arg_0 = var_39; [L125] SORT_1 var_40_arg_1 = var_4; [L126] SORT_1 var_40_arg_2 = var_4; [L127] SORT_1 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L128] SORT_1 var_37_arg_0 = var_36; [L129] SORT_1 var_37_arg_1 = var_21; [L130] SORT_1 var_37_arg_2 = var_4; [L131] SORT_1 var_37 = var_37_arg_0 ? var_37_arg_1 : var_37_arg_2; [L132] SORT_1 var_44_arg_0 = var_43; [L133] SORT_1 var_44_arg_1 = var_40; [L134] SORT_1 var_44_arg_2 = var_37; [L135] SORT_1 var_44 = var_44_arg_0 ? var_44_arg_1 : var_44_arg_2; [L136] SORT_12 var_32_arg_0 = state_14; [L137] SORT_12 var_32_arg_1 = var_31; [L138] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L139] SORT_12 var_29_arg_0 = state_14; [L140] SORT_12 var_29_arg_1 = var_28; [L141] SORT_1 var_29 = var_29_arg_0 == var_29_arg_1; [L142] SORT_1 var_33_arg_0 = var_32; [L143] SORT_1 var_33_arg_1 = var_29; [L144] EXPR var_33_arg_0 | var_33_arg_1 [L144] SORT_1 var_33 = var_33_arg_0 | var_33_arg_1; [L145] EXPR var_33 & mask_SORT_1 [L145] var_33 = var_33 & mask_SORT_1 [L146] SORT_1 var_30_arg_0 = var_29; [L147] SORT_1 var_30_arg_1 = var_4; [L148] SORT_1 var_30_arg_2 = var_4; [L149] SORT_1 var_30 = var_30_arg_0 ? var_30_arg_1 : var_30_arg_2; [L150] SORT_12 var_26_arg_0 = state_14; [L151] SORT_12 var_26_arg_1 = var_13; [L152] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L153] SORT_1 var_27_arg_0 = var_26; [L154] SORT_1 var_27_arg_1 = var_4; [L155] SORT_1 var_27_arg_2 = state_5; [L156] SORT_1 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L157] SORT_1 var_34_arg_0 = var_33; [L158] SORT_1 var_34_arg_1 = var_30; [L159] SORT_1 var_34_arg_2 = var_27; [L160] SORT_1 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L161] SORT_1 var_51_arg_0 = var_50; [L162] SORT_1 var_51_arg_1 = var_44; [L163] SORT_1 var_51_arg_2 = var_34; [L164] SORT_1 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L165] SORT_1 next_52_arg_1 = var_51; [L166] SORT_12 var_83_arg_0 = state_14; [L167] SORT_12 var_83_arg_1 = var_41; [L168] SORT_1 var_83 = var_83_arg_0 == var_83_arg_1; [L169] SORT_12 var_81_arg_0 = state_14; [L170] SORT_12 var_81_arg_1 = var_38; [L171] SORT_1 var_81 = var_81_arg_0 == var_81_arg_1; [L172] SORT_1 var_84_arg_0 = var_83; [L173] SORT_1 var_84_arg_1 = var_81; [L174] EXPR var_84_arg_0 | var_84_arg_1 [L174] SORT_1 var_84 = var_84_arg_0 | var_84_arg_1; [L175] EXPR var_84 & mask_SORT_1 [L175] var_84 = var_84 & mask_SORT_1 [L176] SORT_12 var_73_arg_0 = state_14; [L177] SORT_12 var_73_arg_1 = var_35; [L178] SORT_1 var_73 = var_73_arg_0 == var_73_arg_1; [L179] SORT_12 var_86_arg_0 = state_14; [L180] SORT_12 var_86_arg_1 = var_45; [L181] SORT_1 var_86 = var_86_arg_0 == var_86_arg_1; [L182] SORT_1 var_87_arg_0 = var_73; [L183] SORT_1 var_87_arg_1 = var_86; [L184] EXPR ((SORT_47)var_87_arg_0 << 1) | var_87_arg_1 [L184] SORT_47 var_87 = ((SORT_47)var_87_arg_0 << 1) | var_87_arg_1; [L185] EXPR var_87 & mask_SORT_47 [L185] var_87 = var_87 & mask_SORT_47 [L186] SORT_1 var_88_arg_0 = var_84; [L187] SORT_47 var_88_arg_1 = var_87; [L188] EXPR ((SORT_12)var_88_arg_0 << 2) | var_88_arg_1 [L188] SORT_12 var_88 = ((SORT_12)var_88_arg_0 << 2) | var_88_arg_1; [L189] EXPR var_88 & mask_SORT_12 [L189] var_88 = var_88 & mask_SORT_12 [L190] SORT_12 var_89_arg_0 = var_88; [L191] SORT_1 var_89 = var_89_arg_0 != 0; [L192] SORT_12 var_79_arg_0 = state_14; [L193] SORT_12 var_79_arg_1 = var_38; [L194] SORT_1 var_79 = var_79_arg_0 == var_79_arg_1; [L195] SORT_1 var_76_arg_0 = input_2; [L196] EXPR var_76_arg_0 & mask_SORT_1 [L196] var_76_arg_0 = var_76_arg_0 & mask_SORT_1 [L197] SORT_7 var_76 = var_76_arg_0; [L198] SORT_7 var_77_arg_0 = var_76; [L199] SORT_7 var_77_arg_1 = var_57; [L200] SORT_1 var_77 = var_77_arg_0 == var_77_arg_1; [L201] SORT_1 var_78_arg_0 = var_77; [L202] SORT_12 var_78_arg_1 = var_35; [L203] SORT_12 var_78_arg_2 = var_13; [L204] SORT_12 var_78 = var_78_arg_0 ? var_78_arg_1 : var_78_arg_2; [L205] SORT_1 var_80_arg_0 = var_79; [L206] SORT_12 var_80_arg_1 = var_78; [L207] SORT_12 var_80_arg_2 = input_75; [L208] SORT_12 var_80 = var_80_arg_0 ? var_80_arg_1 : var_80_arg_2; [L209] SORT_1 var_82_arg_0 = var_81; [L210] SORT_12 var_82_arg_1 = var_80; [L211] SORT_12 var_82_arg_2 = var_38; [L212] SORT_12 var_82 = var_82_arg_0 ? var_82_arg_1 : var_82_arg_2; [L213] SORT_1 var_74_arg_0 = var_73; [L214] SORT_12 var_74_arg_1 = var_31; [L215] SORT_12 var_74_arg_2 = var_35; [L216] SORT_12 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L217] SORT_1 var_85_arg_0 = var_84; [L218] SORT_12 var_85_arg_1 = var_82; [L219] SORT_12 var_85_arg_2 = var_74; [L220] SORT_12 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L221] SORT_12 var_70_arg_0 = state_14; [L222] SORT_12 var_70_arg_1 = var_31; [L223] SORT_1 var_70 = var_70_arg_0 == var_70_arg_1; [L224] SORT_12 var_68_arg_0 = state_14; [L225] SORT_12 var_68_arg_1 = var_28; [L226] SORT_1 var_68 = var_68_arg_0 == var_68_arg_1; [L227] SORT_1 var_71_arg_0 = var_70; [L228] SORT_1 var_71_arg_1 = var_68; [L229] EXPR var_71_arg_0 | var_71_arg_1 [L229] SORT_1 var_71 = var_71_arg_0 | var_71_arg_1; [L230] EXPR var_71 & mask_SORT_1 [L230] var_71 = var_71 & mask_SORT_1 [L231] SORT_12 var_66_arg_0 = state_14; [L232] SORT_12 var_66_arg_1 = var_28; [L233] SORT_1 var_66 = var_66_arg_0 == var_66_arg_1; [L234] SORT_1 var_63_arg_0 = input_2; [L235] EXPR var_63_arg_0 & mask_SORT_1 [L235] var_63_arg_0 = var_63_arg_0 & mask_SORT_1 [L236] SORT_7 var_63 = var_63_arg_0; [L237] SORT_7 var_64_arg_0 = var_63; [L238] SORT_7 var_64_arg_1 = var_57; [L239] SORT_1 var_64 = var_64_arg_0 == var_64_arg_1; [L240] SORT_1 var_65_arg_0 = var_64; [L241] SORT_12 var_65_arg_1 = var_45; [L242] SORT_12 var_65_arg_2 = var_38; [L243] SORT_12 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; [L244] SORT_1 var_67_arg_0 = var_66; [L245] SORT_12 var_67_arg_1 = var_65; [L246] SORT_12 var_67_arg_2 = input_62; [L247] SORT_12 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L248] SORT_12 var_60_arg_0 = state_14; [L249] SORT_12 var_60_arg_1 = var_31; [L250] SORT_1 var_60 = var_60_arg_0 == var_60_arg_1; [L251] SORT_1 var_56_arg_0 = input_2; [L252] EXPR var_56_arg_0 & mask_SORT_1 [L252] var_56_arg_0 = var_56_arg_0 & mask_SORT_1 [L253] SORT_7 var_56 = var_56_arg_0; [L254] SORT_7 var_58_arg_0 = var_56; [L255] SORT_7 var_58_arg_1 = var_57; [L256] SORT_1 var_58 = var_58_arg_0 == var_58_arg_1; [L257] SORT_1 var_59_arg_0 = var_58; [L258] SORT_12 var_59_arg_1 = var_28; [L259] SORT_12 var_59_arg_2 = var_41; [L260] SORT_12 var_59 = var_59_arg_0 ? var_59_arg_1 : var_59_arg_2; [L261] SORT_1 var_61_arg_0 = var_60; [L262] SORT_12 var_61_arg_1 = var_59; [L263] SORT_12 var_61_arg_2 = input_55; [L264] SORT_12 var_61 = var_61_arg_0 ? var_61_arg_1 : var_61_arg_2; [L265] SORT_1 var_69_arg_0 = var_68; [L266] SORT_12 var_69_arg_1 = var_67; [L267] SORT_12 var_69_arg_2 = var_61; [L268] SORT_12 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L269] SORT_12 var_53_arg_0 = state_14; [L270] SORT_12 var_53_arg_1 = var_13; [L271] SORT_1 var_53 = var_53_arg_0 == var_53_arg_1; [L272] SORT_1 var_54_arg_0 = var_53; [L273] SORT_12 var_54_arg_1 = var_31; [L274] SORT_12 var_54_arg_2 = state_14; [L275] SORT_12 var_54 = var_54_arg_0 ? var_54_arg_1 : var_54_arg_2; [L276] SORT_1 var_72_arg_0 = var_71; [L277] SORT_12 var_72_arg_1 = var_69; [L278] SORT_12 var_72_arg_2 = var_54; [L279] SORT_12 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L280] SORT_1 var_90_arg_0 = var_89; [L281] SORT_12 var_90_arg_1 = var_85; [L282] SORT_12 var_90_arg_2 = var_72; [L283] SORT_12 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L284] EXPR var_90 & mask_SORT_12 [L284] var_90 = var_90 & mask_SORT_12 [L285] SORT_12 next_91_arg_1 = var_90; [L287] state_5 = next_52_arg_1 [L288] state_14 = next_91_arg_1 VAL [bad_24_arg_0=0, init_15_arg_1=0, init_6_arg_1=0, input_2=9, input_55=1, input_62=1, input_75=4, mask_SORT_12=7, mask_SORT_1=1, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_12=4, msb_SORT_1=1, msb_SORT_47=2, msb_SORT_7=2147483648, next_52_arg_1=0, next_91_arg_1=1, state_14=1, state_5=0, var_10=0, var_10_arg_0=0, var_10_arg_1=1, var_11=255, var_11_arg_0=0, var_13=0, var_16=0, var_16_arg_0=0, var_17=0, var_17_arg_0=0, var_17_arg_1=1, var_18=255, var_18_arg_0=255, var_18_arg_1=0, var_21=1, var_22=0, var_22_arg_0=255, var_23=0, var_23_arg_0=1, var_23_arg_1=0, var_26=1, var_26_arg_0=0, var_26_arg_1=0, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_27_arg_2=0, var_28=2, var_29=0, var_29_arg_0=0, var_29_arg_1=2, var_30=0, var_30_arg_0=0, var_30_arg_1=0, var_30_arg_2=0, var_31=1, var_32=0, var_32_arg_0=0, var_32_arg_1=1, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=0, var_34_arg_2=0, var_35=4, var_36=0, var_36_arg_0=0, var_36_arg_1=4, var_37=0, var_37_arg_0=0, var_37_arg_1=1, var_37_arg_2=0, var_38=6, var_39=0, var_39_arg_0=0, var_39_arg_1=6, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_41=5, var_42=0, var_42_arg_0=0, var_42_arg_1=5, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_44_arg_2=0, var_45=3, var_46=0, var_46_arg_0=0, var_46_arg_1=3, var_48=0, var_48_arg_0=0, var_48_arg_1=0, var_49=0, var_49_arg_0=0, var_49_arg_1=0, var_4=0, var_50=0, var_50_arg_0=0, var_51=0, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_54_arg_2=0, var_56=0, var_56_arg_0=0, var_57=0, var_58=1, var_58_arg_0=0, var_58_arg_1=0, var_59=2, var_59_arg_0=1, var_59_arg_1=2, var_59_arg_2=5, var_60=0, var_60_arg_0=0, var_60_arg_1=1, var_61=1, var_61_arg_0=0, var_61_arg_1=2, var_61_arg_2=1, var_63=1, var_63_arg_0=1, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_65=6, var_65_arg_0=0, var_65_arg_1=3, var_65_arg_2=6, var_66=0, var_66_arg_0=0, var_66_arg_1=2, var_67=1, var_67_arg_0=0, var_67_arg_1=6, var_67_arg_2=1, var_68=0, var_68_arg_0=0, var_68_arg_1=2, var_69=1, var_69_arg_0=0, var_69_arg_1=1, var_69_arg_2=1, var_70=0, var_70_arg_0=0, var_70_arg_1=1, var_71=0, var_71_arg_0=0, var_71_arg_1=0, var_72=1, var_72_arg_0=0, var_72_arg_1=1, var_72_arg_2=1, var_73=0, var_73_arg_0=0, var_73_arg_1=4, var_74=4, var_74_arg_0=0, var_74_arg_1=1, var_74_arg_2=4, var_76=0, var_76_arg_0=0, var_77=1, var_77_arg_0=0, var_77_arg_1=0, var_78=4, var_78_arg_0=1, var_78_arg_1=4, var_78_arg_2=0, var_79=0, var_79_arg_0=0, var_79_arg_1=6, var_80=4, var_80_arg_0=0, var_80_arg_1=4, var_80_arg_2=4, var_81=0, var_81_arg_0=0, var_81_arg_1=6, var_82=6, var_82_arg_0=0, var_82_arg_1=4, var_82_arg_2=6, var_83=0, var_83_arg_0=0, var_83_arg_1=5, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=4, var_85_arg_0=0, var_85_arg_1=6, var_85_arg_2=4, var_86=0, var_86_arg_0=0, var_86_arg_1=3, var_87=0, var_87_arg_0=0, var_87_arg_1=0, var_88=0, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_8=0, var_8_arg_0=0, var_90=1, var_90_arg_0=0, var_90_arg_1=4, var_90_arg_2=1, var_9=1] [L65] input_2 = __VERIFIER_nondet_uchar() [L66] input_3 = __VERIFIER_nondet_uchar() [L67] input_55 = __VERIFIER_nondet_uchar() [L68] input_62 = __VERIFIER_nondet_uchar() [L69] input_75 = __VERIFIER_nondet_uchar() [L72] SORT_1 var_8_arg_0 = state_5; [L73] EXPR var_8_arg_0 & mask_SORT_1 [L73] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 [L74] SORT_7 var_8 = var_8_arg_0; [L75] SORT_7 var_10_arg_0 = var_8; [L76] SORT_7 var_10_arg_1 = var_9; [L77] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L78] SORT_1 var_11_arg_0 = var_10; [L79] SORT_1 var_11 = ~var_11_arg_0; [L80] SORT_12 var_16_arg_0 = state_14; [L81] EXPR var_16_arg_0 & mask_SORT_12 [L81] var_16_arg_0 = var_16_arg_0 & mask_SORT_12 [L82] SORT_7 var_16 = var_16_arg_0; [L83] SORT_7 var_17_arg_0 = var_16; [L84] SORT_7 var_17_arg_1 = var_9; [L85] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L86] SORT_1 var_18_arg_0 = var_11; [L87] SORT_1 var_18_arg_1 = var_17; [L88] EXPR var_18_arg_0 | var_18_arg_1 [L88] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L89] SORT_1 var_22_arg_0 = var_18; [L90] SORT_1 var_22 = ~var_22_arg_0; [L91] SORT_1 var_23_arg_0 = var_21; [L92] SORT_1 var_23_arg_1 = var_22; [L93] EXPR var_23_arg_0 & var_23_arg_1 [L93] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L94] EXPR var_23 & mask_SORT_1 [L94] var_23 = var_23 & mask_SORT_1 [L95] SORT_1 bad_24_arg_0 = var_23; [L96] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=1, InterpolantAutomatonStates: 5, 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, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 22:19:52,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e188a971cba665e2b77b0e826b47d617ddf57bd12a8f8136f6d81bf903c7591b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:19:54,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:19:54,896 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-21 22:19:54,902 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:19:54,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:19:54,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:19:54,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:19:54,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:19:54,970 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:19:54,975 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:19:54,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:19:54,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:19:54,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:19:54,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:19:54,979 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:19:54,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:19:54,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:19:54,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:19:54,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:19:54,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:19:54,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:19:54,983 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:19:54,984 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:19:54,984 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:19:54,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:19:54,985 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:19:54,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:19:54,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:19:54,987 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:19:54,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:19:54,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:54,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:19:54,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:19:54,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:19:54,990 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:19:54,990 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:19:54,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:19:54,992 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:19:54,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:19:54,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:19:54,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:19:54,993 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:19:54,993 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_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e188a971cba665e2b77b0e826b47d617ddf57bd12a8f8136f6d81bf903c7591b [2023-11-21 22:19:55,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:19:55,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:19:55,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:19:55,478 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:19:55,479 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:19:55,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2023-11-21 22:19:58,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:19:58,979 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:19:58,979 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2023-11-21 22:19:58,993 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/data/6efbd180b/d0da424cb6b04165a02ada9b6fff30bd/FLAGcf9d21934 [2023-11-21 22:19:59,008 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/data/6efbd180b/d0da424cb6b04165a02ada9b6fff30bd [2023-11-21 22:19:59,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:19:59,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:19:59,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:59,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:19:59,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:19:59,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@743da343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59, skipping insertion in model container [2023-11-21 22:19:59,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,066 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:19:59,232 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_96ac1910-d3fb-4db2-8429-827cd1f87310/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1245,1258] [2023-11-21 22:19:59,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:59,393 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:19:59,406 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_96ac1910-d3fb-4db2-8429-827cd1f87310/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1245,1258] [2023-11-21 22:19:59,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:59,468 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:19:59,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59 WrapperNode [2023-11-21 22:19:59,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:59,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:59,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:19:59,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:19:59,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,548 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 293 [2023-11-21 22:19:59,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:59,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:19:59,550 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:19:59,550 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:19:59,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,569 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,584 INFO L187 HeapSplitter]: Split 10 memory accesses to 2 slices as follows [2, 8] [2023-11-21 22:19:59,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:19:59,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:19:59,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:19:59,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:19:59,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (1/1) ... [2023-11-21 22:19:59,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:59,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:59,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:59,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:19:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:19:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:19:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-21 22:19:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:19:59,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:19:59,898 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:19:59,901 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:20:00,364 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:20:00,463 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:20:00,463 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:20:00,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:00 BoogieIcfgContainer [2023-11-21 22:20:00,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:20:00,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:20:00,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:20:00,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:20:00,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:19:59" (1/3) ... [2023-11-21 22:20:00,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd01bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:00, skipping insertion in model container [2023-11-21 22:20:00,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:59" (2/3) ... [2023-11-21 22:20:00,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd01bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:00, skipping insertion in model container [2023-11-21 22:20:00,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:00" (3/3) ... [2023-11-21 22:20:00,478 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b02.c [2023-11-21 22:20:00,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:20:00,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:20:00,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:20:00,559 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;@6d695f0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:20:00,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:20:00,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:00,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:20:00,572 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:00,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:20:00,575 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:20:00,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:00,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-21 22:20:00,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:20:00,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465126292] [2023-11-21 22:20:00,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:00,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:00,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:20:00,644 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:20:00,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-21 22:20:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:00,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-21 22:20:00,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:01,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:01,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:20:01,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465126292] [2023-11-21 22:20:01,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465126292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:01,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:01,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:20:01,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271275799] [2023-11-21 22:20:01,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:01,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:01,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:20:01,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:01,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:01,207 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:01,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:01,288 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2023-11-21 22:20:01,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:01,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-21 22:20:01,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:01,298 INFO L225 Difference]: With dead ends: 15 [2023-11-21 22:20:01,298 INFO L226 Difference]: Without dead ends: 9 [2023-11-21 22:20:01,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:01,305 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, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:01,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:01,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-21 22:20:01,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-21 22:20:01,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:01,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-21 22:20:01,338 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-21 22:20:01,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:01,338 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-21 22:20:01,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:01,339 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-21 22:20:01,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:20:01,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:01,340 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-21 22:20:01,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:01,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:01,543 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:20:01,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:01,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-21 22:20:01,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:20:01,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830427208] [2023-11-21 22:20:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:01,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:01,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:20:01,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:20:01,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96ac1910-d3fb-4db2-8429-827cd1f87310/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-21 22:20:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:01,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 74 conjunts are in the unsatisfiable core [2023-11-21 22:20:01,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:02,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:02,998 INFO L327 TraceCheckSpWp]: Computing backward predicates...