./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl --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 ca829ec71663ed4e5ba64ab200a5036617b96aeef2928740446e7c2667cc81d8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:23:22,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:23:22,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:23:22,626 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:23:22,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:23:22,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:23:22,680 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:23:22,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:23:22,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:23:22,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:23:22,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:23:22,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:23:22,692 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:23:22,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:23:22,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:23:22,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:23:22,695 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:23:22,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:23:22,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:23:22,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:23:22,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:23:22,697 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:23:22,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:23:22,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:23:22,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:23:22,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:22,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:23:22,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:23:22,700 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:23:22,701 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:23:22,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:23:22,702 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:23:22,703 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:23:22,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:23:22,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:23:22,703 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:23:22,704 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_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca829ec71663ed4e5ba64ab200a5036617b96aeef2928740446e7c2667cc81d8 [2023-11-12 02:23:22,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:23:23,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:23:23,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:23:23,021 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:23:23,022 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:23:23,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2023-11-12 02:23:26,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:23:26,547 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:23:26,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2023-11-12 02:23:26,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/data/db1629227/30f5ba6e01f4456fb33da5d7fdce1216/FLAG74effa54f [2023-11-12 02:23:26,572 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/data/db1629227/30f5ba6e01f4456fb33da5d7fdce1216 [2023-11-12 02:23:26,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:23:26,577 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:23:26,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:26,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:23:26,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:23:26,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:26,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ec0c453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26, skipping insertion in model container [2023-11-12 02:23:26,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:26,621 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:23:26,806 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_c138721f-c781-4603-a8ef-bb0f14b59490/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c[1266,1279] [2023-11-12 02:23:26,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:26,911 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:23:26,925 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_c138721f-c781-4603-a8ef-bb0f14b59490/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c[1266,1279] [2023-11-12 02:23:26,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:26,974 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:23:26,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26 WrapperNode [2023-11-12 02:23:26,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:26,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:26,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:23:26,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:23:26,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:27,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:27,063 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 259 [2023-11-12 02:23:27,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:27,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:23:27,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:23:27,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:23:27,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:27,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:27,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:27,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:27,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:27,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:27,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:27,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:27,117 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:23:27,118 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:23:27,118 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:23:27,118 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:23:27,119 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (1/1) ... [2023-11-12 02:23:27,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:27,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:23:27,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:23:27,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:23:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:23:27,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:23:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:23:27,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:23:27,332 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:23:27,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:23:27,813 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:23:27,819 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:23:27,819 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:23:27,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:27 BoogieIcfgContainer [2023-11-12 02:23:27,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:23:27,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:23:27,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:23:27,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:23:27,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:23:26" (1/3) ... [2023-11-12 02:23:27,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb55094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:27, skipping insertion in model container [2023-11-12 02:23:27,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:26" (2/3) ... [2023-11-12 02:23:27,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb55094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:27, skipping insertion in model container [2023-11-12 02:23:27,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:27" (3/3) ... [2023-11-12 02:23:27,831 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2023-11-12 02:23:27,850 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:23:27,850 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:23:27,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:23:27,901 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;@2fa1514a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:23:27,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:23:27,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:27,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:23:27,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:27,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:27,926 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:27,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:27,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2075160292, now seen corresponding path program 1 times [2023-11-12 02:23:27,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:27,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695904052] [2023-11-12 02:23:27,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:27,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:28,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:28,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695904052] [2023-11-12 02:23:28,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695904052] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:28,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:28,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:23:28,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176027507] [2023-11-12 02:23:28,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:28,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:23:28,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:28,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:23:28,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:28,417 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:28,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:28,459 INFO L93 Difference]: Finished difference Result 57 states and 89 transitions. [2023-11-12 02:23:28,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:23:28,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-12 02:23:28,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:28,471 INFO L225 Difference]: With dead ends: 57 [2023-11-12 02:23:28,471 INFO L226 Difference]: Without dead ends: 33 [2023-11-12 02:23:28,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:28,479 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:28,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 129 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:23:28,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-12 02:23:28,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-12 02:23:28,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 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) [2023-11-12 02:23:28,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 49 transitions. [2023-11-12 02:23:28,518 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 49 transitions. Word has length 15 [2023-11-12 02:23:28,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:28,519 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 49 transitions. [2023-11-12 02:23:28,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:28,520 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2023-11-12 02:23:28,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 02:23:28,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:28,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:28,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:23:28,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:28,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:28,523 INFO L85 PathProgramCache]: Analyzing trace with hash -92815380, now seen corresponding path program 1 times [2023-11-12 02:23:28,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:28,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811839157] [2023-11-12 02:23:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:28,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:28,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:28,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:28,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811839157] [2023-11-12 02:23:28,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811839157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:28,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:28,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:23:28,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99608330] [2023-11-12 02:23:28,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:28,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:23:28,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:28,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:23:28,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:28,767 INFO L87 Difference]: Start difference. First operand 33 states and 49 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:28,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:28,820 INFO L93 Difference]: Finished difference Result 58 states and 85 transitions. [2023-11-12 02:23:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:23:28,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-12 02:23:28,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:28,825 INFO L225 Difference]: With dead ends: 58 [2023-11-12 02:23:28,825 INFO L226 Difference]: Without dead ends: 36 [2023-11-12 02:23:28,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:28,831 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:28,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 126 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:23:28,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-12 02:23:28,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2023-11-12 02:23:28,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.5) internal successors, (51), 34 states have internal predecessors, (51), 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) [2023-11-12 02:23:28,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 51 transitions. [2023-11-12 02:23:28,837 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 51 transitions. Word has length 16 [2023-11-12 02:23:28,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:28,838 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 51 transitions. [2023-11-12 02:23:28,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:28,838 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2023-11-12 02:23:28,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:23:28,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:28,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:28,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:23:28,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:28,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:28,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1207258110, now seen corresponding path program 1 times [2023-11-12 02:23:28,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:28,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013338629] [2023-11-12 02:23:28,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:28,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:29,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:29,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:29,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013338629] [2023-11-12 02:23:29,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013338629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:29,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:29,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:23:29,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814917499] [2023-11-12 02:23:29,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:29,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:23:29,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:29,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:23:29,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:29,131 INFO L87 Difference]: Start difference. First operand 35 states and 51 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:29,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:29,167 INFO L93 Difference]: Finished difference Result 58 states and 84 transitions. [2023-11-12 02:23:29,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:23:29,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-12 02:23:29,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:29,169 INFO L225 Difference]: With dead ends: 58 [2023-11-12 02:23:29,169 INFO L226 Difference]: Without dead ends: 34 [2023-11-12 02:23:29,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:23:29,171 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 63 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:29,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 58 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:23:29,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-12 02:23:29,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2023-11-12 02:23:29,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.46875) internal successors, (47), 32 states have internal predecessors, (47), 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) [2023-11-12 02:23:29,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 47 transitions. [2023-11-12 02:23:29,185 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 47 transitions. Word has length 17 [2023-11-12 02:23:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:29,185 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 47 transitions. [2023-11-12 02:23:29,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:29,186 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 47 transitions. [2023-11-12 02:23:29,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:23:29,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:29,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:23:29,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:23:29,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:29,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1312701824, now seen corresponding path program 1 times [2023-11-12 02:23:29,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:29,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037728678] [2023-11-12 02:23:29,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:29,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:23:29,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:23:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:23:29,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:23:29,273 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:23:29,275 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:23:29,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:23:29,280 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 02:23:29,284 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:23:29,307 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:23:29,308 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 02:23:29,309 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-12 02:23:29,309 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-12 02:23:29,310 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 02:23:29,310 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-12 02:23:29,313 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-11-12 02:23:29,314 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated [2023-11-12 02:23:29,315 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-12 02:23:29,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:23:29 BoogieIcfgContainer [2023-11-12 02:23:29,326 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:23:29,327 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:23:29,327 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:23:29,327 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:23:29,328 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:27" (3/4) ... [2023-11-12 02:23:29,330 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:23:29,331 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:23:29,332 INFO L158 Benchmark]: Toolchain (without parser) took 2755.63ms. Allocated memory is still 157.3MB. Free memory was 114.1MB in the beginning and 81.7MB in the end (delta: 32.3MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2023-11-12 02:23:29,333 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 113.2MB. Free memory was 61.0MB in the beginning and 60.9MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:23:29,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.38ms. Allocated memory is still 157.3MB. Free memory was 113.7MB in the beginning and 100.7MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:23:29,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.74ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 96.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:23:29,334 INFO L158 Benchmark]: Boogie Preprocessor took 52.13ms. Allocated memory is still 157.3MB. Free memory was 96.5MB in the beginning and 94.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:23:29,335 INFO L158 Benchmark]: RCFGBuilder took 704.11ms. Allocated memory is still 157.3MB. Free memory was 94.4MB in the beginning and 120.8MB in the end (delta: -26.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:23:29,335 INFO L158 Benchmark]: TraceAbstraction took 1502.15ms. Allocated memory is still 157.3MB. Free memory was 120.1MB in the beginning and 82.6MB in the end (delta: 37.5MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2023-11-12 02:23:29,336 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 157.3MB. Free memory was 82.6MB in the beginning and 81.7MB in the end (delta: 897.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:23:29,338 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 113.2MB. Free memory was 61.0MB in the beginning and 60.9MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.38ms. Allocated memory is still 157.3MB. Free memory was 113.7MB in the beginning and 100.7MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.74ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 96.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.13ms. Allocated memory is still 157.3MB. Free memory was 96.5MB in the beginning and 94.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 704.11ms. Allocated memory is still 157.3MB. Free memory was 94.4MB in the beginning and 120.8MB in the end (delta: -26.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1502.15ms. Allocated memory is still 157.3MB. Free memory was 120.1MB in the beginning and 82.6MB in the end (delta: 37.5MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 157.3MB. Free memory was 82.6MB in the beginning and 81.7MB in the end (delta: 897.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 114. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 4); [L33] const SORT_7 msb_SORT_7 = (SORT_7)1 << (4 - 1); [L35] const SORT_62 mask_SORT_62 = (SORT_62)-1 >> (sizeof(SORT_62) * 8 - 10); [L36] const SORT_62 msb_SORT_62 = (SORT_62)1 << (10 - 1); [L38] const SORT_7 var_8 = 0; [L39] const SORT_1 var_16 = 1; [L40] const SORT_1 var_20 = 0; [L42] SORT_1 input_2; [L43] SORT_3 input_4; [L44] SORT_1 input_5; [L45] SORT_1 input_6; [L46] SORT_1 input_23; [L47] SORT_1 input_25; [L48] SORT_1 input_27; [L49] SORT_1 input_29; [L50] SORT_1 input_31; [L51] SORT_1 input_33; [L52] SORT_1 input_35; [L53] SORT_1 input_37; [L54] SORT_1 input_39; [L55] SORT_1 input_41; [L56] SORT_1 input_43; [L57] SORT_3 input_45; [L58] SORT_1 input_48; [L59] SORT_1 input_50; [L60] SORT_1 input_52; [L61] SORT_1 input_54; [L62] SORT_1 input_56; [L63] SORT_1 input_58; [L64] SORT_1 input_60; [L65] SORT_62 input_63; [L66] SORT_1 input_65; [L68] EXPR __VERIFIER_nondet_uchar() & mask_SORT_7 VAL [mask_SORT_1=1, mask_SORT_3=255, mask_SORT_62=1023, mask_SORT_7=15, msb_SORT_1=1, msb_SORT_3=128, msb_SORT_62=512, msb_SORT_7=8, var_16=1, var_20=0, var_8=0] [L68] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L69] EXPR __VERIFIER_nondet_uchar() & mask_SORT_7 VAL [mask_SORT_1=1, mask_SORT_3=255, mask_SORT_62=1023, mask_SORT_7=15, msb_SORT_1=1, msb_SORT_3=128, msb_SORT_62=512, msb_SORT_7=8, state_9=0, var_16=1, var_20=0, var_8=0] [L69] SORT_7 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, mask_SORT_3=255, mask_SORT_62=1023, mask_SORT_7=15, msb_SORT_1=1, msb_SORT_3=128, msb_SORT_62=512, msb_SORT_7=8, state_11=0, state_9=0, var_16=1, var_20=0, var_8=0] [L70] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_7 init_10_arg_1 = var_8; [L73] state_9 = init_10_arg_1 [L74] SORT_7 init_12_arg_1 = var_8; [L75] state_11 = init_12_arg_1 [L76] SORT_1 init_22_arg_1 = var_20; [L77] state_21 = init_22_arg_1 VAL [init_10_arg_1=0, init_12_arg_1=0, init_22_arg_1=0, mask_SORT_1=1, mask_SORT_3=255, mask_SORT_62=1023, mask_SORT_7=15, msb_SORT_1=1, msb_SORT_3=128, msb_SORT_62=512, msb_SORT_7=8, state_11=0, state_21=0, state_9=0, var_16=1, var_20=0, var_8=0] [L80] input_2 = __VERIFIER_nondet_uchar() [L81] input_4 = __VERIFIER_nondet_uchar() [L82] input_5 = __VERIFIER_nondet_uchar() [L83] input_6 = __VERIFIER_nondet_uchar() [L84] input_23 = __VERIFIER_nondet_uchar() [L85] input_25 = __VERIFIER_nondet_uchar() [L86] input_27 = __VERIFIER_nondet_uchar() [L87] input_29 = __VERIFIER_nondet_uchar() [L88] input_31 = __VERIFIER_nondet_uchar() [L89] input_33 = __VERIFIER_nondet_uchar() [L90] input_35 = __VERIFIER_nondet_uchar() [L91] input_37 = __VERIFIER_nondet_uchar() [L92] input_39 = __VERIFIER_nondet_uchar() [L93] input_41 = __VERIFIER_nondet_uchar() [L94] input_43 = __VERIFIER_nondet_uchar() [L95] input_45 = __VERIFIER_nondet_uchar() [L96] input_48 = __VERIFIER_nondet_uchar() [L97] input_50 = __VERIFIER_nondet_uchar() [L98] input_52 = __VERIFIER_nondet_uchar() [L99] input_54 = __VERIFIER_nondet_uchar() [L100] input_56 = __VERIFIER_nondet_uchar() [L101] input_58 = __VERIFIER_nondet_uchar() [L102] input_60 = __VERIFIER_nondet_uchar() [L103] input_63 = __VERIFIER_nondet_ushort() [L104] input_65 = __VERIFIER_nondet_uchar() [L107] SORT_7 var_13_arg_0 = state_9; [L108] SORT_7 var_13_arg_1 = state_11; [L109] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L110] SORT_1 var_17_arg_0 = var_13; [L111] SORT_1 var_17 = ~var_17_arg_0; [L112] SORT_1 var_18_arg_0 = var_16; [L113] SORT_1 var_18_arg_1 = var_17; VAL [init_10_arg_1=0, init_12_arg_1=0, init_22_arg_1=0, mask_SORT_1=1, mask_SORT_3=255, mask_SORT_62=1023, mask_SORT_7=15, msb_SORT_1=1, msb_SORT_3=128, msb_SORT_62=512, msb_SORT_7=8, state_11=0, state_21=0, state_9=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_16=1, var_17=254, var_17_arg_0=1, var_18_arg_0=1, var_18_arg_1=254, var_20=0, var_8=0] [L114] EXPR var_18_arg_0 & var_18_arg_1 VAL [init_10_arg_1=0, init_12_arg_1=0, init_22_arg_1=0, mask_SORT_1=1, mask_SORT_3=255, mask_SORT_62=1023, mask_SORT_7=15, msb_SORT_1=1, msb_SORT_3=128, msb_SORT_62=512, msb_SORT_7=8, state_11=0, state_21=0, state_9=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_16=1, var_17=254, var_17_arg_0=1, var_18_arg_0=1, var_18_arg_1=254, var_20=0, var_8=0] [L114] SORT_1 var_18 = var_18_arg_0 & var_18_arg_1; [L115] EXPR var_18 & mask_SORT_1 VAL [init_10_arg_1=0, init_12_arg_1=0, init_22_arg_1=0, mask_SORT_1=1, mask_SORT_3=255, mask_SORT_62=1023, mask_SORT_7=15, msb_SORT_1=1, msb_SORT_3=128, msb_SORT_62=512, msb_SORT_7=8, state_11=0, state_21=0, state_9=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_16=1, var_17=254, var_17_arg_0=1, var_18=1, var_18_arg_0=1, var_18_arg_1=254, var_20=0, var_8=0] [L115] var_18 = var_18 & mask_SORT_1 [L116] SORT_1 bad_19_arg_0 = var_18; [L117] CALL __VERIFIER_assert(!(bad_19_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 313 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 182 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 131 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 98 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:23:29,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl --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 ca829ec71663ed4e5ba64ab200a5036617b96aeef2928740446e7c2667cc81d8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:23:32,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:23:32,331 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-12 02:23:32,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:23:32,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:23:32,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:23:32,401 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:23:32,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:23:32,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:23:32,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:23:32,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:23:32,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:23:32,411 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:23:32,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:23:32,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:23:32,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:23:32,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:23:32,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:23:32,417 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:23:32,417 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:23:32,418 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:23:32,419 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:23:32,419 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:23:32,420 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:23:32,420 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:23:32,421 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:23:32,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:23:32,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:32,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:23:32,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:23:32,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:23:32,425 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:23:32,426 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:23:32,426 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:23:32,426 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:23:32,427 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:23:32,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:23:32,427 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:23:32,428 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:23:32,429 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_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca829ec71663ed4e5ba64ab200a5036617b96aeef2928740446e7c2667cc81d8 [2023-11-12 02:23:32,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:23:32,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:23:32,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:23:32,905 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:23:32,905 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:23:32,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2023-11-12 02:23:36,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:23:36,566 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:23:36,567 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2023-11-12 02:23:36,591 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/data/373863c56/aef5c7390339408197ae3fa788029c02/FLAG4aeed844f [2023-11-12 02:23:36,622 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/data/373863c56/aef5c7390339408197ae3fa788029c02 [2023-11-12 02:23:36,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:23:36,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:23:36,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:36,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:23:36,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:23:36,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:36" (1/1) ... [2023-11-12 02:23:36,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5a55e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:36, skipping insertion in model container [2023-11-12 02:23:36,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:36" (1/1) ... [2023-11-12 02:23:36,703 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:23:36,963 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_c138721f-c781-4603-a8ef-bb0f14b59490/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c[1266,1279] [2023-11-12 02:23:37,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:37,074 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:23:37,097 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_c138721f-c781-4603-a8ef-bb0f14b59490/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c[1266,1279] [2023-11-12 02:23:37,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:37,176 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:23:37,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37 WrapperNode [2023-11-12 02:23:37,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:37,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:37,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:23:37,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:23:37,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (1/1) ... [2023-11-12 02:23:37,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (1/1) ... [2023-11-12 02:23:37,296 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 179 [2023-11-12 02:23:37,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:37,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:23:37,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:23:37,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:23:37,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (1/1) ... [2023-11-12 02:23:37,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (1/1) ... [2023-11-12 02:23:37,328 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (1/1) ... [2023-11-12 02:23:37,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (1/1) ... [2023-11-12 02:23:37,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (1/1) ... [2023-11-12 02:23:37,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (1/1) ... [2023-11-12 02:23:37,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (1/1) ... [2023-11-12 02:23:37,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (1/1) ... [2023-11-12 02:23:37,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:23:37,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:23:37,354 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:23:37,354 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:23:37,355 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (1/1) ... [2023-11-12 02:23:37,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:37,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:23:37,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:23:37,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:23:37,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:23:37,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:23:37,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:23:37,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:23:37,604 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:23:37,607 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:23:37,859 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:23:37,871 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:23:37,871 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:23:37,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:37 BoogieIcfgContainer [2023-11-12 02:23:37,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:23:37,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:23:37,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:23:37,883 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:23:37,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:23:36" (1/3) ... [2023-11-12 02:23:37,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ade1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:37, skipping insertion in model container [2023-11-12 02:23:37,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:37" (2/3) ... [2023-11-12 02:23:37,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ade1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:37, skipping insertion in model container [2023-11-12 02:23:37,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:37" (3/3) ... [2023-11-12 02:23:37,887 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p05.c [2023-11-12 02:23:37,908 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:23:37,908 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:23:37,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:23:37,981 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;@75d3a22c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:23:37,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:23:37,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:37,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 02:23:37,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:38,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:23:38,002 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:23:38,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:38,017 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-12 02:23:38,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:23:38,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978922169] [2023-11-12 02:23:38,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:38,040 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 [2023-11-12 02:23:38,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:23:38,046 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:23:38,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:23:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:38,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-12 02:23:38,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:23:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:23:38,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:23:38,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:23:38,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978922169] [2023-11-12 02:23:38,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978922169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:38,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:38,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:23:38,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251503427] [2023-11-12 02:23:38,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:38,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:23:38,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:23:38,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:23:38,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:23:38,782 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:38,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:38,840 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2023-11-12 02:23:38,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:23:38,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-12 02:23:38,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:38,851 INFO L225 Difference]: With dead ends: 14 [2023-11-12 02:23:38,851 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:23:38,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:23:38,859 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:38,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:23:38,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:23:38,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:23:38,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:38,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:23:38,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2023-11-12 02:23:38,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:38,896 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:23:38,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:23:38,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:23:38,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:23:38,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:23:38,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:23:39,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:23:39,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:23:39,135 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:23:39,135 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-12 02:23:39,136 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-12 02:23:39,136 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-12 02:23:39,137 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:23:39,137 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 23 143) no Hoare annotation was computed. [2023-11-12 02:23:39,137 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:23:39,137 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:23:39,139 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-12 02:23:39,139 INFO L895 garLoopResultBuilder]: At program point L78-2(lines 78 141) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= |ULTIMATE.start_main_~state_9~0#1| (_ bv0 8)) (= (_ bv0 8) |ULTIMATE.start_main_~state_11~0#1|)) [2023-11-12 02:23:39,139 INFO L899 garLoopResultBuilder]: For program point L78-3(lines 78 141) no Hoare annotation was computed. [2023-11-12 02:23:39,144 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 02:23:39,147 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:23:39,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:23:39 BoogieIcfgContainer [2023-11-12 02:23:39,171 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:23:39,172 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:23:39,173 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:23:39,173 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:23:39,174 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:37" (3/4) ... [2023-11-12 02:23:39,176 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:23:39,191 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-12 02:23:39,192 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:23:39,192 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:23:39,193 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:23:39,353 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:23:39,353 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:23:39,354 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:23:39,355 INFO L158 Benchmark]: Toolchain (without parser) took 2721.41ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 47.4MB in the beginning and 63.9MB in the end (delta: -16.5MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2023-11-12 02:23:39,355 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 58.7MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:23:39,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.00ms. Allocated memory is still 71.3MB. Free memory was 47.3MB in the beginning and 34.4MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:23:39,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.03ms. Allocated memory is still 71.3MB. Free memory was 34.4MB in the beginning and 49.9MB in the end (delta: -15.6MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-11-12 02:23:39,357 INFO L158 Benchmark]: Boogie Preprocessor took 48.34ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 48.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:23:39,358 INFO L158 Benchmark]: RCFGBuilder took 520.55ms. Allocated memory is still 71.3MB. Free memory was 48.2MB in the beginning and 34.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:23:39,359 INFO L158 Benchmark]: TraceAbstraction took 1294.74ms. Allocated memory is still 71.3MB. Free memory was 33.9MB in the beginning and 30.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2023-11-12 02:23:39,360 INFO L158 Benchmark]: Witness Printer took 181.55ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 30.6MB in the beginning and 63.9MB in the end (delta: -33.3MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-11-12 02:23:39,365 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 58.7MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 540.00ms. Allocated memory is still 71.3MB. Free memory was 47.3MB in the beginning and 34.4MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 123.03ms. Allocated memory is still 71.3MB. Free memory was 34.4MB in the beginning and 49.9MB in the end (delta: -15.6MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.34ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 48.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 520.55ms. Allocated memory is still 71.3MB. Free memory was 48.2MB in the beginning and 34.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1294.74ms. Allocated memory is still 71.3MB. Free memory was 33.9MB in the beginning and 30.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Witness Printer took 181.55ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 30.6MB in the beginning and 63.9MB in the end (delta: -33.3MB). Peak memory consumption was 8.6MB. 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 10 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 16 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 17 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (((1 == mask_SORT_1) && (state_9 == 0)) && (0 == state_11)) RESULT: Ultimate proved your program to be correct! [2023-11-12 02:23:39,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138721f-c781-4603-a8ef-bb0f14b59490/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE