./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 32bit --witnessprinter.graph.data.programhash 134b13cd1b8ac1dc8abd325434d56d90d6a754291c767bced87290501af7bb0e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:20:41,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:20:41,972 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:20:41,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:20:41,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:20:42,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:20:42,004 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:20:42,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:20:42,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:20:42,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:20:42,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:20:42,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:20:42,008 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:20:42,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:20:42,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:20:42,010 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:20:42,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:20:42,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:20:42,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:20:42,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:20:42,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:20:42,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:20:42,013 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:20:42,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:20:42,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:20:42,015 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:20:42,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:20:42,016 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:20:42,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:42,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:20:42,017 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:20:42,017 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:20:42,017 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:20:42,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:20:42,018 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:20:42,018 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:20:42,018 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:20:42,019 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:20:42,019 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:20:42,019 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_12dc5009-f0ad-4aab-8342-660fa5d7328a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134b13cd1b8ac1dc8abd325434d56d90d6a754291c767bced87290501af7bb0e [2023-11-12 02:20:42,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:20:42,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:20:42,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:20:42,294 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:20:42,294 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:20:42,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i [2023-11-12 02:20:45,479 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:20:45,701 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:20:45,704 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i [2023-11-12 02:20:45,714 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/data/5bf5ccb67/f74597e251a74d4ea57fd76119c21d1b/FLAG8706f4dd0 [2023-11-12 02:20:45,736 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/data/5bf5ccb67/f74597e251a74d4ea57fd76119c21d1b [2023-11-12 02:20:45,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:20:45,743 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:20:45,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:45,745 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:20:45,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:20:45,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:45" (1/1) ... [2023-11-12 02:20:45,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d07899c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:45, skipping insertion in model container [2023-11-12 02:20:45,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:45" (1/1) ... [2023-11-12 02:20:45,776 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:20:45,935 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_12dc5009-f0ad-4aab-8342-660fa5d7328a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i[915,928] [2023-11-12 02:20:45,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:45,976 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:20:45,992 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_12dc5009-f0ad-4aab-8342-660fa5d7328a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i[915,928] [2023-11-12 02:20:46,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:46,022 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:20:46,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46 WrapperNode [2023-11-12 02:20:46,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:46,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:46,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:20:46,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:20:46,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,086 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2023-11-12 02:20:46,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:46,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:20:46,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:20:46,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:20:46,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:20:46,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:20:46,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:20:46,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:20:46,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (1/1) ... [2023-11-12 02:20:46,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:46,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:46,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:20:46,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:20:46,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:20:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:20:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:20:46,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:20:46,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:20:46,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:20:46,317 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:20:46,319 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:20:46,673 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:20:46,680 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:20:46,680 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:20:46,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:46 BoogieIcfgContainer [2023-11-12 02:20:46,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:20:46,685 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:20:46,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:20:46,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:20:46,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:20:45" (1/3) ... [2023-11-12 02:20:46,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f151c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:46, skipping insertion in model container [2023-11-12 02:20:46,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:46" (2/3) ... [2023-11-12 02:20:46,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f151c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:46, skipping insertion in model container [2023-11-12 02:20:46,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:46" (3/3) ... [2023-11-12 02:20:46,694 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-21.i [2023-11-12 02:20:46,719 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:20:46,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:20:46,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:20:46,784 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;@17af1c72, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:20:46,785 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:20:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:20:46,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 02:20:46,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:46,800 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:46,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:46,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:46,807 INFO L85 PathProgramCache]: Analyzing trace with hash 756006593, now seen corresponding path program 1 times [2023-11-12 02:20:46,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:46,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691558471] [2023-11-12 02:20:46,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:46,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:47,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:47,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691558471] [2023-11-12 02:20:47,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:20:47,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019336757] [2023-11-12 02:20:47,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:47,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:47,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:47,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:47,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:20:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:47,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:20:47,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:47,169 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-12 02:20:47,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:47,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019336757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:47,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:47,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:20:47,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788386299] [2023-11-12 02:20:47,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:47,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:20:47,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:47,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:20:47,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:20:47,211 INFO L87 Difference]: Start difference. First operand has 35 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:20:47,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:47,235 INFO L93 Difference]: Finished difference Result 63 states and 96 transitions. [2023-11-12 02:20:47,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:20:47,237 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2023-11-12 02:20:47,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:47,244 INFO L225 Difference]: With dead ends: 63 [2023-11-12 02:20:47,245 INFO L226 Difference]: Without dead ends: 31 [2023-11-12 02:20:47,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:20:47,252 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:47,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:20:47,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-12 02:20:47,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-12 02:20:47,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:20:47,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2023-11-12 02:20:47,294 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 47 [2023-11-12 02:20:47,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:47,294 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2023-11-12 02:20:47,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:20:47,295 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2023-11-12 02:20:47,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 02:20:47,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:47,298 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:47,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 02:20:47,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:20:47,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:47,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:47,506 INFO L85 PathProgramCache]: Analyzing trace with hash 448030081, now seen corresponding path program 1 times [2023-11-12 02:20:47,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:47,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545246411] [2023-11-12 02:20:47,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:47,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:47,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:20:47,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1550221754] [2023-11-12 02:20:47,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:47,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:47,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:47,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:20:47,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:20:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:47,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:20:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:20:47,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:20:47,726 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:20:47,728 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:20:47,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:20:47,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:20:47,940 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:20:47,943 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:20:47,975 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:20:47,977 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 02:20:47,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:20:47 BoogieIcfgContainer [2023-11-12 02:20:47,989 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:20:47,990 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:20:47,990 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:20:47,990 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:20:47,990 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:46" (3/4) ... [2023-11-12 02:20:47,993 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:20:47,994 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:20:47,995 INFO L158 Benchmark]: Toolchain (without parser) took 2251.76ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 93.7MB in the end (delta: 18.1MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2023-11-12 02:20:47,995 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:20:47,996 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.79ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 100.7MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:20:47,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.15ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 98.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:20:47,997 INFO L158 Benchmark]: Boogie Preprocessor took 32.62ms. Allocated memory is still 157.3MB. Free memory was 98.0MB in the beginning and 96.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:20:47,998 INFO L158 Benchmark]: RCFGBuilder took 561.81ms. Allocated memory is still 157.3MB. Free memory was 96.7MB in the beginning and 82.9MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:20:47,998 INFO L158 Benchmark]: TraceAbstraction took 1303.67ms. Allocated memory is still 157.3MB. Free memory was 82.0MB in the beginning and 94.6MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:20:47,999 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 157.3MB. Free memory was 94.6MB in the beginning and 93.7MB in the end (delta: 944.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:20:48,003 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.79ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 100.7MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.15ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 98.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.62ms. Allocated memory is still 157.3MB. Free memory was 98.0MB in the beginning and 96.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 561.81ms. Allocated memory is still 157.3MB. Free memory was 96.7MB in the beginning and 82.9MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1303.67ms. Allocated memory is still 157.3MB. Free memory was 82.0MB in the beginning and 94.6MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 157.3MB. Free memory was 94.6MB in the beginning and 93.7MB in the end (delta: 944.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 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: 19]: 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 someBinaryFLOATComparisonOperation at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -16; [L23] signed long int var_1_6 = 10; [L24] unsigned char var_1_8 = 0; [L25] unsigned char var_1_9 = 4; [L26] float var_1_10 = 15.5; [L27] float var_1_11 = 99.125; [L28] signed short int var_1_12 = 2; [L29] signed long int last_1_var_1_1 = -16; VAL [isInitial=0, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=10, var_1_8=0, var_1_9=4] [L60] isInitial = 1 [L61] FCALL initially() [L62] COND TRUE 1 [L63] CALL updateLastVariables() [L53] last_1_var_1_1 = var_1_1 VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=10, var_1_8=0, var_1_9=4] [L63] RET updateLastVariables() [L64] CALL updateVariables() [L42] var_1_6 = __VERIFIER_nondet_long() [L43] CALL assume_abort_if_not(var_1_6 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=4] [L43] RET assume_abort_if_not(var_1_6 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=4] [L44] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=4] [L44] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=4] [L45] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=4] [L45] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=4] [L46] var_1_9 = __VERIFIER_nondet_uchar() [L47] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=0] [L47] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=0] [L48] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=0] [L48] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=793/8, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=0] [L49] var_1_11 = __VERIFIER_nondet_float() [L50] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=2, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=2, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=0] [L50] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=31/2, var_1_11=2, var_1_12=2, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=0] [L64] RET updateVariables() [L65] CALL step() [L33] var_1_8 = var_1_9 [L34] var_1_10 = var_1_11 [L35] var_1_12 = var_1_9 VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=2, var_1_11=2, var_1_12=0, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=0] [L36] EXPR var_1_8 & (var_1_12 * var_1_8) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=2, var_1_11=2, var_1_12=0, var_1_1=-16, var_1_6=-8, var_1_8=0, var_1_9=0] [L36] signed long int stepLocal_0 = var_1_8 & (var_1_12 * var_1_8); [L37] COND TRUE stepLocal_0 < (last_1_var_1_1 / var_1_6) [L38] var_1_1 = (var_1_8 + 256) VAL [isInitial=1, last_1_var_1_1=-16, stepLocal_0=0, var_1_10=2, var_1_11=2, var_1_12=0, var_1_1=256, var_1_6=-8, var_1_8=0, var_1_9=0] [L65] RET step() [L66] CALL, EXPR property() [L56] EXPR var_1_8 & (var_1_12 * var_1_8) VAL [isInitial=1, last_1_var_1_1=-16, var_1_10=2, var_1_11=2, var_1_12=0, var_1_1=256, var_1_6=-8, var_1_8=0, var_1_9=0] [L56-L57] return (((((var_1_8 & (var_1_12 * var_1_8)) < (last_1_var_1_1 / var_1_6)) ? (var_1_1 == ((signed long int) (var_1_8 + 256))) : 1) && (var_1_8 == ((unsigned char) var_1_9))) && (var_1_10 == ((float) var_1_11))) && (var_1_12 == ((signed short int) var_1_9)) ; [L66] RET, EXPR property() [L66] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=-16, var_1_10=2, var_1_11=2, var_1_12=0, var_1_1=256, var_1_6=-8, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_1=-16, var_1_10=2, var_1_11=2, var_1_12=0, var_1_1=256, var_1_6=-8, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 41 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 2, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 60/60 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 02:20:48,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 32bit --witnessprinter.graph.data.programhash 134b13cd1b8ac1dc8abd325434d56d90d6a754291c767bced87290501af7bb0e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:20:50,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:20:50,835 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:20:50,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:20:50,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:20:50,873 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:20:50,874 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:20:50,874 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:20:50,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:20:50,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:20:50,878 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:20:50,879 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:20:50,880 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:20:50,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:20:50,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:20:50,886 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:20:50,886 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:20:50,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:20:50,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:20:50,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:20:50,888 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:20:50,888 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:20:50,889 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:20:50,889 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:20:50,890 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:20:50,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:20:50,890 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:20:50,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:20:50,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:20:50,892 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:20:50,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:50,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:20:50,894 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:20:50,894 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:20:50,894 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:20:50,895 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:20:50,895 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:20:50,895 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:20:50,895 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:20:50,896 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:20:50,897 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:20:50,897 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:20:50,897 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_12dc5009-f0ad-4aab-8342-660fa5d7328a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134b13cd1b8ac1dc8abd325434d56d90d6a754291c767bced87290501af7bb0e [2023-11-12 02:20:51,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:20:51,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:20:51,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:20:51,341 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:20:51,342 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:20:51,344 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i [2023-11-12 02:20:54,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:20:54,892 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:20:54,892 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i [2023-11-12 02:20:54,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/data/ca769c024/bb08207a4f39408991df4464b1262b56/FLAG901217ab9 [2023-11-12 02:20:54,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/data/ca769c024/bb08207a4f39408991df4464b1262b56 [2023-11-12 02:20:54,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:20:54,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:20:54,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:54,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:20:54,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:20:54,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:54" (1/1) ... [2023-11-12 02:20:54,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f007341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:54, skipping insertion in model container [2023-11-12 02:20:54,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:54" (1/1) ... [2023-11-12 02:20:54,964 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:20:55,164 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_12dc5009-f0ad-4aab-8342-660fa5d7328a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i[915,928] [2023-11-12 02:20:55,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:55,230 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:20:55,248 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_12dc5009-f0ad-4aab-8342-660fa5d7328a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-21.i[915,928] [2023-11-12 02:20:55,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:55,300 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:20:55,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55 WrapperNode [2023-11-12 02:20:55,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:55,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:55,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:20:55,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:20:55,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (1/1) ... [2023-11-12 02:20:55,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (1/1) ... [2023-11-12 02:20:55,361 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 64 [2023-11-12 02:20:55,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:55,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:20:55,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:20:55,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:20:55,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (1/1) ... [2023-11-12 02:20:55,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (1/1) ... [2023-11-12 02:20:55,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (1/1) ... [2023-11-12 02:20:55,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (1/1) ... [2023-11-12 02:20:55,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (1/1) ... [2023-11-12 02:20:55,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (1/1) ... [2023-11-12 02:20:55,431 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (1/1) ... [2023-11-12 02:20:55,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (1/1) ... [2023-11-12 02:20:55,440 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:20:55,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:20:55,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:20:55,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:20:55,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (1/1) ... [2023-11-12 02:20:55,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:55,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:55,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:20:55,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:20:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:20:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:20:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:20:55,539 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:20:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:20:55,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:20:55,636 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:20:55,638 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:20:56,016 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:20:56,023 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:20:56,027 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:20:56,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:56 BoogieIcfgContainer [2023-11-12 02:20:56,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:20:56,035 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:20:56,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:20:56,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:20:56,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:20:54" (1/3) ... [2023-11-12 02:20:56,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f8a12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:56, skipping insertion in model container [2023-11-12 02:20:56,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:55" (2/3) ... [2023-11-12 02:20:56,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f8a12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:56, skipping insertion in model container [2023-11-12 02:20:56,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:56" (3/3) ... [2023-11-12 02:20:56,044 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-21.i [2023-11-12 02:20:56,066 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:20:56,066 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:20:56,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:20:56,143 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;@2f090111, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:20:56,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:20:56,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:20:56,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-12 02:20:56,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:56,159 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:56,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:56,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:56,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1845334235, now seen corresponding path program 1 times [2023-11-12 02:20:56,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:20:56,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109493423] [2023-11-12 02:20:56,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:56,185 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 02:20:56,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:20:56,208 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 02:20:56,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 02:20:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:56,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:20:56,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:56,456 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-12 02:20:56,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:56,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:20:56,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109493423] [2023-11-12 02:20:56,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109493423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:56,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:56,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:20:56,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82402149] [2023-11-12 02:20:56,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:56,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:20:56,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:20:56,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:20:56,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:20:56,516 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:20:56,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:20:56,548 INFO L93 Difference]: Finished difference Result 51 states and 76 transitions. [2023-11-12 02:20:56,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:20:56,551 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2023-11-12 02:20:56,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:20:56,559 INFO L225 Difference]: With dead ends: 51 [2023-11-12 02:20:56,559 INFO L226 Difference]: Without dead ends: 25 [2023-11-12 02:20:56,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:20:56,568 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:20:56,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:20:56,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-12 02:20:56,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-12 02:20:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:20:56,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2023-11-12 02:20:56,621 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 43 [2023-11-12 02:20:56,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:20:56,621 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2023-11-12 02:20:56,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:20:56,622 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2023-11-12 02:20:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-12 02:20:56,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:20:56,625 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:56,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 02:20:56,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 02:20:56,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:20:56,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:56,827 INFO L85 PathProgramCache]: Analyzing trace with hash 797153179, now seen corresponding path program 1 times [2023-11-12 02:20:56,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:20:56,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352259978] [2023-11-12 02:20:56,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:56,838 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 02:20:56,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:20:56,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 02:20:56,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 (3)] Waiting until timeout for monitored process [2023-11-12 02:20:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:57,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-12 02:20:57,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:20:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-12 02:20:58,010 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:20:58,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:20:58,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352259978] [2023-11-12 02:20:58,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352259978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:58,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:58,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:20:58,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380818350] [2023-11-12 02:20:58,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:58,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:20:58,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:20:58,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:20:58,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:20:58,015 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:21:00,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:00,190 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2023-11-12 02:21:00,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-12 02:21:00,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 43 [2023-11-12 02:21:00,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:00,196 INFO L225 Difference]: With dead ends: 69 [2023-11-12 02:21:00,196 INFO L226 Difference]: Without dead ends: 67 [2023-11-12 02:21:00,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=193, Invalid=563, Unknown=0, NotChecked=0, Total=756 [2023-11-12 02:21:00,199 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 87 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:00,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 125 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-12 02:21:00,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-12 02:21:00,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 41. [2023-11-12 02:21:00,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 29 states have internal predecessors, (30), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:21:00,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2023-11-12 02:21:00,219 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 43 [2023-11-12 02:21:00,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:00,220 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2023-11-12 02:21:00,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:21:00,220 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2023-11-12 02:21:00,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-12 02:21:00,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:00,222 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:00,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 (3)] Ended with exit code 0 [2023-11-12 02:21:00,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 02:21:00,437 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:00,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:00,438 INFO L85 PathProgramCache]: Analyzing trace with hash 799000221, now seen corresponding path program 1 times [2023-11-12 02:21:00,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:21:00,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884450205] [2023-11-12 02:21:00,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:00,439 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 02:21:00,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:21:00,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 02:21:00,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 (4)] Waiting until timeout for monitored process [2023-11-12 02:21:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:00,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-12 02:21:00,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:21:04,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:21:09,151 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-12 02:21:09,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:21:09,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884450205] [2023-11-12 02:21:09,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884450205] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 02:21:09,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:21:09,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2023-11-12 02:21:09,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930419398] [2023-11-12 02:21:09,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:09,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:21:09,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:21:09,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:21:09,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-11-12 02:21:09,155 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:21:16,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:16,164 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2023-11-12 02:21:16,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:21:16,170 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 43 [2023-11-12 02:21:16,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:16,171 INFO L225 Difference]: With dead ends: 60 [2023-11-12 02:21:16,171 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:21:16,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2023-11-12 02:21:16,174 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 35 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:16,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 88 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-12 02:21:16,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:21:16,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:21:16,177 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 02:21:16,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:21:16,177 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2023-11-12 02:21:16,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:16,178 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:21:16,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-12 02:21:16,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:21:16,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:21:16,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:21:16,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:16,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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 02:21:16,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:21:19,604 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 54) no Hoare annotation was computed. [2023-11-12 02:21:19,604 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-12 02:21:19,604 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-12 02:21:19,604 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-11-12 02:21:19,604 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-12 02:21:19,605 INFO L895 garLoopResultBuilder]: At program point L44(line 44) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_11~0 .cse0) (fp.leq ~var_1_11~0 .cse1)) (and (fp.geq ~var_1_11~0 (fp.neg .cse1)) (fp.leq ~var_1_11~0 (fp.neg .cse0))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-12 02:21:19,605 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 59 70) no Hoare annotation was computed. [2023-11-12 02:21:19,605 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 40) no Hoare annotation was computed. [2023-11-12 02:21:19,605 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:21:19,605 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:21:19,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-12 02:21:19,606 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 55 58) no Hoare annotation was computed. [2023-11-12 02:21:19,606 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-12 02:21:19,606 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 39) no Hoare annotation was computed. [2023-11-12 02:21:19,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:21:19,606 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 62 68) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_11~0 .cse0) (fp.leq ~var_1_11~0 .cse1)) (and (fp.geq ~var_1_11~0 (fp.neg .cse1)) (fp.leq ~var_1_11~0 (fp.neg .cse0))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-12 02:21:19,607 INFO L899 garLoopResultBuilder]: For program point L62-3(lines 62 68) no Hoare annotation was computed. [2023-11-12 02:21:19,607 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2023-11-12 02:21:19,607 INFO L899 garLoopResultBuilder]: For program point L50-1(lines 41 51) no Hoare annotation was computed. [2023-11-12 02:21:19,607 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:21:19,607 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 31) no Hoare annotation was computed. [2023-11-12 02:21:19,608 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_11~0 .cse0) (fp.leq ~var_1_11~0 .cse1)) (and (fp.geq ~var_1_11~0 (fp.neg .cse1)) (fp.leq ~var_1_11~0 (fp.neg .cse0))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-12 02:21:19,608 INFO L895 garLoopResultBuilder]: At program point L47-1(line 47) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_11~0 .cse0) (fp.leq ~var_1_11~0 .cse1)) (and (fp.geq ~var_1_11~0 (fp.neg .cse1)) (fp.leq ~var_1_11~0 (fp.neg .cse0))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-12 02:21:19,608 INFO L895 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_11~0 .cse0) (fp.leq ~var_1_11~0 .cse1)) (and (fp.geq ~var_1_11~0 (fp.neg .cse1)) (fp.leq ~var_1_11~0 (fp.neg .cse0))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-12 02:21:19,608 INFO L895 garLoopResultBuilder]: At program point L43-1(line 43) the Hoare annotation is: (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_11~0 .cse0) (fp.leq ~var_1_11~0 .cse1)) (and (fp.geq ~var_1_11~0 (fp.neg .cse1)) (fp.leq ~var_1_11~0 (fp.neg .cse0))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-12 02:21:19,608 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-12 02:21:19,609 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-12 02:21:19,609 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-12 02:21:19,609 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-12 02:21:19,613 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-12 02:21:19,615 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:21:19,629 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,630 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,630 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,630 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,631 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,631 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,632 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,632 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,632 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,633 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,633 ERROR L464 ceAbstractionStarter]: Failed to backtranslate (and (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (or (and (fp.geq ~var_1_11~0 .cse0) (fp.leq ~var_1_11~0 .cse1)) (and (fp.geq ~var_1_11~0 (fp.neg .cse1)) (fp.leq ~var_1_11~0 (fp.neg .cse0))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-12 02:21:19,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:21:19 BoogieIcfgContainer [2023-11-12 02:21:19,634 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:21:19,634 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:21:19,635 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:21:19,635 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:21:19,635 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:56" (3/4) ... [2023-11-12 02:21:19,638 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:21:19,643 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-12 02:21:19,648 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-12 02:21:19,648 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:21:19,649 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:21:19,649 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:21:19,735 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:21:19,735 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:21:19,735 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:21:19,736 INFO L158 Benchmark]: Toolchain (without parser) took 24806.87ms. Allocated memory was 71.3MB in the beginning and 121.6MB in the end (delta: 50.3MB). Free memory was 47.1MB in the beginning and 76.5MB in the end (delta: -29.4MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-11-12 02:21:19,737 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 71.3MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:21:19,737 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.20ms. Allocated memory is still 71.3MB. Free memory was 46.9MB in the beginning and 35.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:21:19,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.01ms. Allocated memory is still 71.3MB. Free memory was 35.2MB in the beginning and 33.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:21:19,738 INFO L158 Benchmark]: Boogie Preprocessor took 84.12ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 33.6MB in the beginning and 78.7MB in the end (delta: -45.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-11-12 02:21:19,739 INFO L158 Benchmark]: RCFGBuilder took 582.89ms. Allocated memory is still 100.7MB. Free memory was 78.7MB in the beginning and 67.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:21:19,739 INFO L158 Benchmark]: TraceAbstraction took 23599.08ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 66.6MB in the beginning and 81.8MB in the end (delta: -15.2MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2023-11-12 02:21:19,740 INFO L158 Benchmark]: Witness Printer took 101.22ms. Allocated memory is still 121.6MB. Free memory was 80.7MB in the beginning and 76.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:21:19,742 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 71.3MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.20ms. Allocated memory is still 71.3MB. Free memory was 46.9MB in the beginning and 35.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.01ms. Allocated memory is still 71.3MB. Free memory was 35.2MB in the beginning and 33.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 84.12ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 33.6MB in the beginning and 78.7MB in the end (delta: -45.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * RCFGBuilder took 582.89ms. Allocated memory is still 100.7MB. Free memory was 78.7MB in the beginning and 67.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 23599.08ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 66.6MB in the beginning and 81.8MB in the end (delta: -15.2MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. * Witness Printer took 101.22ms. Allocated memory is still 121.6MB. Free memory was 80.7MB in the beginning and 76.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: 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 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.5s, OverallIterations: 3, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 244 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 310 IncrementalHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 88 mSDtfsCounter, 310 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 193 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=2, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 26 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 28 PreInvPairs, 46 NumberOfFragments, 178 HoareAnnotationTreeSize, 28 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 2132 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 168 ConstructedInterpolants, 4 QuantifiedInterpolants, 1228 SizeOfPredicates, 30 NumberOfNonLiveVariables, 245 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 234/240 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: 62]: Loop Invariant [2023-11-12 02:21:19,752 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,753 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,753 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,753 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,753 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,754 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,754 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,754 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,754 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-12 02:21:19,755 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated Derived loop invariant: NULL RESULT: Ultimate proved your program to be correct! [2023-11-12 02:21:19,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12dc5009-f0ad-4aab-8342-660fa5d7328a/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