./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-80.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85b1d2ec59250ca50e4af3cfea516d1a969ce9b16ea60a43749666e7f67d56c7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:47:39,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:47:39,906 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:47:39,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:47:39,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:47:39,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:47:39,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:47:39,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:47:39,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:47:39,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:47:39,969 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:47:39,970 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:47:39,971 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:47:39,973 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:47:39,974 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:47:39,975 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:47:39,975 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:47:39,976 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:47:39,977 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:47:39,977 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:47:39,978 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:47:39,979 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:47:39,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:47:39,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:47:39,982 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:47:39,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:47:39,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:47:39,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:47:39,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:47:39,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:47:39,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:47:39,987 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:47:39,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:47:39,988 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:47:39,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:47:39,988 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:47:39,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:39,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:47:39,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:47:39,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:47:39,991 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:47:39,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:47:39,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:47:39,993 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:47:39,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:47:39,994 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b1d2ec59250ca50e4af3cfea516d1a969ce9b16ea60a43749666e7f67d56c7 [2023-11-19 04:47:40,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:47:40,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:47:40,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:47:40,320 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:47:40,321 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:47:40,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-80.i [2023-11-19 04:47:43,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:47:43,865 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:47:43,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-80.i [2023-11-19 04:47:43,874 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/data/7f0542bda/5b6877ed884549388170b6fa30732c78/FLAG32a774572 [2023-11-19 04:47:43,886 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/data/7f0542bda/5b6877ed884549388170b6fa30732c78 [2023-11-19 04:47:43,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:47:43,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:47:43,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:43,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:47:43,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:47:43,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:43" (1/1) ... [2023-11-19 04:47:43,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f38fb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:43, skipping insertion in model container [2023-11-19 04:47:43,901 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:43" (1/1) ... [2023-11-19 04:47:43,927 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:47:44,087 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_4bcad990-a101-416e-baa0-082d6e72930d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-80.i[915,928] [2023-11-19 04:47:44,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:44,129 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:47:44,142 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_4bcad990-a101-416e-baa0-082d6e72930d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-80.i[915,928] [2023-11-19 04:47:44,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:44,174 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:47:44,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44 WrapperNode [2023-11-19 04:47:44,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:44,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:44,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:47:44,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:47:44,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (1/1) ... [2023-11-19 04:47:44,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (1/1) ... [2023-11-19 04:47:44,221 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2023-11-19 04:47:44,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:44,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:47:44,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:47:44,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:47:44,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (1/1) ... [2023-11-19 04:47:44,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (1/1) ... [2023-11-19 04:47:44,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (1/1) ... [2023-11-19 04:47:44,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (1/1) ... [2023-11-19 04:47:44,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (1/1) ... [2023-11-19 04:47:44,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (1/1) ... [2023-11-19 04:47:44,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (1/1) ... [2023-11-19 04:47:44,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (1/1) ... [2023-11-19 04:47:44,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:47:44,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:47:44,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:47:44,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:47:44,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (1/1) ... [2023-11-19 04:47:44,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:44,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:47:44,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:47:44,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:47:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:47:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:47:44,325 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:47:44,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:47:44,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:47:44,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:47:44,397 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:47:44,399 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:47:44,629 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:47:44,704 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:47:44,704 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:47:44,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:44 BoogieIcfgContainer [2023-11-19 04:47:44,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:47:44,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:47:44,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:47:44,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:47:44,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:47:43" (1/3) ... [2023-11-19 04:47:44,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a31b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:44, skipping insertion in model container [2023-11-19 04:47:44,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:44" (2/3) ... [2023-11-19 04:47:44,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a31b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:44, skipping insertion in model container [2023-11-19 04:47:44,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:44" (3/3) ... [2023-11-19 04:47:44,731 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-80.i [2023-11-19 04:47:44,749 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:47:44,749 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:47:44,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:47:44,804 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=FINITE_AUTOMATA, 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;@7e65bb37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:47:44,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:47:44,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 04:47:44,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 04:47:44,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:44,820 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:44,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:44,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:44,827 INFO L85 PathProgramCache]: Analyzing trace with hash 837410456, now seen corresponding path program 1 times [2023-11-19 04:47:44,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:47:44,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108568189] [2023-11-19 04:47:44,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:44,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:47:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:47:45,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:47:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:47:45,269 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:47:45,271 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:47:45,273 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:47:45,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:47:45,281 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:47:45,290 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:47:45,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:47:45 BoogieIcfgContainer [2023-11-19 04:47:45,367 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:47:45,370 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:47:45,370 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:47:45,370 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:47:45,371 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:44" (3/4) ... [2023-11-19 04:47:45,376 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:47:45,378 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:47:45,379 INFO L158 Benchmark]: Toolchain (without parser) took 1488.35ms. Allocated memory is still 159.4MB. Free memory was 123.4MB in the beginning and 115.4MB in the end (delta: 8.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2023-11-19 04:47:45,380 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 115.3MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:47:45,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.37ms. Allocated memory is still 159.4MB. Free memory was 123.4MB in the beginning and 112.1MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:47:45,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.76ms. Allocated memory is still 159.4MB. Free memory was 112.1MB in the beginning and 110.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:47:45,383 INFO L158 Benchmark]: Boogie Preprocessor took 26.24ms. Allocated memory is still 159.4MB. Free memory was 110.5MB in the beginning and 109.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:47:45,388 INFO L158 Benchmark]: RCFGBuilder took 469.67ms. Allocated memory is still 159.4MB. Free memory was 109.2MB in the beginning and 93.7MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:47:45,389 INFO L158 Benchmark]: TraceAbstraction took 644.84ms. Allocated memory is still 159.4MB. Free memory was 92.8MB in the beginning and 115.4MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:47:45,390 INFO L158 Benchmark]: Witness Printer took 7.92ms. Allocated memory is still 159.4MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:47:45,396 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 115.3MB. Free memory is still 58.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.37ms. Allocated memory is still 159.4MB. Free memory was 123.4MB in the beginning and 112.1MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.76ms. Allocated memory is still 159.4MB. Free memory was 112.1MB in the beginning and 110.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.24ms. Allocated memory is still 159.4MB. Free memory was 110.5MB in the beginning and 109.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.67ms. Allocated memory is still 159.4MB. Free memory was 109.2MB in the beginning and 93.7MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 644.84ms. Allocated memory is still 159.4MB. Free memory was 92.8MB in the beginning and 115.4MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.92ms. Allocated memory is still 159.4MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 35. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 4; [L23] float var_1_4 = 200.75; [L24] float var_1_5 = 5.7; [L25] signed short int var_1_6 = 200; [L26] signed short int var_1_7 = 256; [L27] signed short int var_1_8 = -16; [L28] unsigned char var_1_9 = 1; [L29] unsigned char var_1_10 = 0; [L65] isInitial = 1 [L66] FCALL initially() [L67] COND TRUE 1 [L68] FCALL updateLastVariables() [L69] CALL updateVariables() [L41] var_1_4 = __VERIFIER_nondet_float() [L42] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=57/10, var_1_6=200, var_1_7=256, var_1_8=-16, var_1_9=1] [L20] COND FALSE !(!cond) [L42] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_1=4, var_1_5=57/10, var_1_6=200, var_1_7=256, var_1_8=-16, var_1_9=1] [L43] var_1_5 = __VERIFIER_nondet_float() [L44] CALL assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=200, var_1_7=256, var_1_8=-16, var_1_9=1] [L20] COND FALSE !(!cond) [L44] RET assume_abort_if_not((var_1_5 >= -922337.2036854776000e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=200, var_1_7=256, var_1_8=-16, var_1_9=1] [L45] var_1_6 = __VERIFIER_nondet_short() [L46] CALL assume_abort_if_not(var_1_6 >= -8192) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=256, var_1_8=-16, var_1_9=1] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_6 >= -8192) VAL [isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=256, var_1_8=-16, var_1_9=1] [L47] CALL assume_abort_if_not(var_1_6 <= 8192) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=256, var_1_8=-16, var_1_9=1] [L20] COND FALSE !(!cond) [L47] RET assume_abort_if_not(var_1_6 <= 8192) VAL [isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=256, var_1_8=-16, var_1_9=1] [L48] var_1_7 = __VERIFIER_nondet_short() [L49] CALL assume_abort_if_not(var_1_7 >= -8191) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=-16, var_1_9=1] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_7 >= -8191) VAL [isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=-16, var_1_9=1] [L50] CALL assume_abort_if_not(var_1_7 <= 8191) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=-16, var_1_9=1] [L20] COND FALSE !(!cond) [L50] RET assume_abort_if_not(var_1_7 <= 8191) VAL [isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=-16, var_1_9=1] [L51] var_1_8 = __VERIFIER_nondet_short() [L52] CALL assume_abort_if_not(var_1_8 >= -16383) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=16383, var_1_9=1] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not(var_1_8 >= -16383) VAL [isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=16383, var_1_9=1] [L53] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=16383, var_1_9=1] [L20] COND FALSE !(!cond) [L53] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=16383, var_1_9=1] [L54] var_1_10 = __VERIFIER_nondet_uchar() [L55] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=16383, var_1_9=1] [L20] COND FALSE !(!cond) [L55] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=16383, var_1_9=1] [L56] CALL assume_abort_if_not(var_1_10 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=16383, var_1_9=1] [L20] COND FALSE !(!cond) [L56] RET assume_abort_if_not(var_1_10 <= 0) VAL [isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=16383, var_1_9=1] [L69] RET updateVariables() [L70] CALL step() [L33] var_1_9 = var_1_10 [L34] COND TRUE ! (var_1_9 && var_1_9) [L35] COND FALSE !(var_1_4 <= var_1_5) [L70] RET step() [L71] CALL, EXPR property() [L61-L62] return ((! (var_1_9 && var_1_9)) ? ((var_1_4 <= var_1_5) ? (var_1_1 == ((signed short int) ((((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) + var_1_7) + var_1_8))) : 1) : 1) && (var_1_9 == ((unsigned char) var_1_10)) ; [L71] RET, EXPR property() [L71] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=16383, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_1=4, var_1_5=16388, var_1_6=0, var_1_7=-8191, var_1_8=16383, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:47:45,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-80.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85b1d2ec59250ca50e4af3cfea516d1a969ce9b16ea60a43749666e7f67d56c7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:47:48,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:47:48,288 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:47:48,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:47:48,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:47:48,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:47:48,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:47:48,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:47:48,328 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:47:48,328 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:47:48,329 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:47:48,329 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:47:48,330 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:47:48,331 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:47:48,331 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:47:48,332 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:47:48,333 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:47:48,333 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:47:48,334 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:47:48,334 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:47:48,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:47:48,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:47:48,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:47:48,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:47:48,337 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:47:48,338 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:47:48,338 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:47:48,339 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:47:48,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:47:48,339 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:47:48,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:47:48,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:47:48,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:47:48,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:48,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:47:48,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:47:48,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:47:48,342 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:47:48,342 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:47:48,343 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:47:48,343 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:47:48,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:47:48,344 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b1d2ec59250ca50e4af3cfea516d1a969ce9b16ea60a43749666e7f67d56c7 [2023-11-19 04:47:48,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:47:48,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:47:48,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:47:48,797 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:47:48,798 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:47:48,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-80.i [2023-11-19 04:47:51,972 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:47:52,275 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:47:52,276 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-80.i [2023-11-19 04:47:52,289 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/data/6b6d4ca40/0747cd50f41d42d2898170378f0b2107/FLAG5966824c2 [2023-11-19 04:47:52,309 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/data/6b6d4ca40/0747cd50f41d42d2898170378f0b2107 [2023-11-19 04:47:52,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:47:52,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:47:52,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:52,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:47:52,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:47:52,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ee2d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52, skipping insertion in model container [2023-11-19 04:47:52,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,359 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:47:52,562 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_4bcad990-a101-416e-baa0-082d6e72930d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-80.i[915,928] [2023-11-19 04:47:52,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:52,639 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:47:52,659 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_4bcad990-a101-416e-baa0-082d6e72930d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-80.i[915,928] [2023-11-19 04:47:52,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:47:52,717 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:47:52,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52 WrapperNode [2023-11-19 04:47:52,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:47:52,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:52,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:47:52,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:47:52,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,792 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 74 [2023-11-19 04:47:52,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:47:52,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:47:52,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:47:52,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:47:52,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,836 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:47:52,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:47:52,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:47:52,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:47:52,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (1/1) ... [2023-11-19 04:47:52,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:52,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:47:52,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:47:52,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:47:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:47:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:47:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:47:52,963 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:47:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:47:52,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:47:53,067 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:47:53,069 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:47:53,288 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:47:53,297 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:47:53,297 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:47:53,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:53 BoogieIcfgContainer [2023-11-19 04:47:53,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:47:53,304 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:47:53,305 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:47:53,307 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:47:53,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:47:52" (1/3) ... [2023-11-19 04:47:53,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf6628c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:53, skipping insertion in model container [2023-11-19 04:47:53,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:52" (2/3) ... [2023-11-19 04:47:53,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf6628c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:53, skipping insertion in model container [2023-11-19 04:47:53,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:53" (3/3) ... [2023-11-19 04:47:53,311 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-80.i [2023-11-19 04:47:53,333 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:47:53,334 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:47:53,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:47:53,419 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=FINITE_AUTOMATA, 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;@5fe9e3a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:47:53,420 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:47:53,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 04:47:53,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 04:47:53,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:53,440 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:53,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:53,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:53,451 INFO L85 PathProgramCache]: Analyzing trace with hash 211231747, now seen corresponding path program 1 times [2023-11-19 04:47:53,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:47:53,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211948086] [2023-11-19 04:47:53,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:53,469 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 [2023-11-19 04:47:53,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:47:53,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:47:53,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:47:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:53,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:47:53,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:47:53,758 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-19 04:47:53,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:47:53,759 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:47:53,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211948086] [2023-11-19 04:47:53,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211948086] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:53,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:53,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:47:53,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495198031] [2023-11-19 04:47:53,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:53,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:47:53,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:47:53,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:47:53,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:47:53,806 INFO L87 Difference]: Start difference. First operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 04:47:53,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:53,843 INFO L93 Difference]: Finished difference Result 67 states and 106 transitions. [2023-11-19 04:47:53,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:47:53,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 66 [2023-11-19 04:47:53,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:53,854 INFO L225 Difference]: With dead ends: 67 [2023-11-19 04:47:53,855 INFO L226 Difference]: Without dead ends: 33 [2023-11-19 04:47:53,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:47:53,862 INFO L413 NwaCegarLoop]: 44 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, 44 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 [2023-11-19 04:47:53,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:47:53,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-19 04:47:53,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-19 04:47:53,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 04:47:53,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2023-11-19 04:47:53,909 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 66 [2023-11-19 04:47:53,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:53,910 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2023-11-19 04:47:53,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 04:47:53,911 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2023-11-19 04:47:53,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 04:47:53,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:53,920 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:53,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 04:47:54,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:47:54,125 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:54,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:54,126 INFO L85 PathProgramCache]: Analyzing trace with hash 409964679, now seen corresponding path program 1 times [2023-11-19 04:47:54,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:47:54,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190816100] [2023-11-19 04:47:54,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:54,127 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 [2023-11-19 04:47:54,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:47:54,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:47:54,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:47:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:54,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:47:54,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:47:54,460 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-19 04:47:54,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:47:54,463 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:47:54,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190816100] [2023-11-19 04:47:54,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190816100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:54,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:54,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:47:54,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787343536] [2023-11-19 04:47:54,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:54,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:47:54,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:47:54,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:47:54,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:47:54,468 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 04:47:54,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:54,923 INFO L93 Difference]: Finished difference Result 97 states and 126 transitions. [2023-11-19 04:47:54,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 04:47:54,924 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 66 [2023-11-19 04:47:54,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:54,927 INFO L225 Difference]: With dead ends: 97 [2023-11-19 04:47:54,927 INFO L226 Difference]: Without dead ends: 67 [2023-11-19 04:47:54,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-11-19 04:47:54,930 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 61 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:54,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 119 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:47:54,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-19 04:47:54,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 37. [2023-11-19 04:47:54,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 04:47:54,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2023-11-19 04:47:54,948 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 66 [2023-11-19 04:47:54,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:54,949 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2023-11-19 04:47:54,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 04:47:54,950 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2023-11-19 04:47:54,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 04:47:54,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:54,952 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:54,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 04:47:55,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:47:55,158 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:55,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:55,159 INFO L85 PathProgramCache]: Analyzing trace with hash -411557169, now seen corresponding path program 1 times [2023-11-19 04:47:55,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:47:55,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019421308] [2023-11-19 04:47:55,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:55,160 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 [2023-11-19 04:47:55,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:47:55,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:47:55,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:47:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:55,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 04:47:55,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:47:56,669 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 04:47:56,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:47:56,671 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:47:56,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019421308] [2023-11-19 04:47:56,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019421308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:56,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:56,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:47:56,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181586788] [2023-11-19 04:47:56,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:56,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:47:56,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:47:56,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:47:56,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:47:56,690 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 04:47:57,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:57,157 INFO L93 Difference]: Finished difference Result 88 states and 114 transitions. [2023-11-19 04:47:57,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:47:57,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 67 [2023-11-19 04:47:57,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:57,161 INFO L225 Difference]: With dead ends: 88 [2023-11-19 04:47:57,161 INFO L226 Difference]: Without dead ends: 86 [2023-11-19 04:47:57,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:47:57,163 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 65 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:57,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 274 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:47:57,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-19 04:47:57,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 50. [2023-11-19 04:47:57,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 states have internal predecessors, (36), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 04:47:57,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2023-11-19 04:47:57,204 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 67 [2023-11-19 04:47:57,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:57,205 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2023-11-19 04:47:57,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 04:47:57,206 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2023-11-19 04:47:57,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 04:47:57,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:47:57,214 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:47:57,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:47:57,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:47:57,428 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:47:57,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:47:57,429 INFO L85 PathProgramCache]: Analyzing trace with hash -409710127, now seen corresponding path program 1 times [2023-11-19 04:47:57,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:47:57,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525569928] [2023-11-19 04:47:57,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:47:57,430 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 [2023-11-19 04:47:57,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:47:57,431 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:47:57,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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 (5)] Waiting until timeout for monitored process [2023-11-19 04:47:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:47:57,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 04:47:57,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:47:58,175 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-19 04:47:58,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:47:58,175 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:47:58,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525569928] [2023-11-19 04:47:58,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525569928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:47:58,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:47:58,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:47:58,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148782989] [2023-11-19 04:47:58,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:47:58,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:47:58,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:47:58,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:47:58,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:47:58,186 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 04:47:58,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:47:58,611 INFO L93 Difference]: Finished difference Result 86 states and 112 transitions. [2023-11-19 04:47:58,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:47:58,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 67 [2023-11-19 04:47:58,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:47:58,613 INFO L225 Difference]: With dead ends: 86 [2023-11-19 04:47:58,613 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:47:58,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:47:58,618 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 54 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:47:58,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 272 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:47:58,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:47:58,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:47:58,619 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) [2023-11-19 04:47:58,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:47:58,620 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2023-11-19 04:47:58,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:47:58,620 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:47:58,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-19 04:47:58,620 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:47:58,620 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:47:58,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:47:58,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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 (5)] Ended with exit code 0 [2023-11-19 04:47:58,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:47:58,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:47:58,935 INFO L899 garLoopResultBuilder]: For program point L56(lines 40 57) no Hoare annotation was computed. [2023-11-19 04:47:58,935 INFO L895 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_10~0) (_ bv0 32)) [2023-11-19 04:47:58,936 INFO L895 garLoopResultBuilder]: At program point L52-1(line 52) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_10~0) (_ bv0 32)) [2023-11-19 04:47:58,936 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-19 04:47:58,936 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-19 04:47:58,936 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-19 04:47:58,937 INFO L895 garLoopResultBuilder]: At program point L44(line 44) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_10~0) (_ bv0 32)) [2023-11-19 04:47:58,937 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-19 04:47:58,937 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 64 75) no Hoare annotation was computed. [2023-11-19 04:47:58,937 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 39) no Hoare annotation was computed. [2023-11-19 04:47:58,937 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 04:47:58,937 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 04:47:58,938 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-19 04:47:58,938 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-19 04:47:58,938 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_10~0) (_ bv0 32)) [2023-11-19 04:47:58,938 INFO L895 garLoopResultBuilder]: At program point L49-1(line 49) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_10~0) (_ bv0 32)) [2023-11-19 04:47:58,938 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 60 63) no Hoare annotation was computed. [2023-11-19 04:47:58,939 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:47:58,939 INFO L899 garLoopResultBuilder]: For program point L58(lines 58 59) no Hoare annotation was computed. [2023-11-19 04:47:58,939 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-19 04:47:58,939 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_10~0) (_ bv0 32)) [2023-11-19 04:47:58,939 INFO L895 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_10~0) (_ bv0 32)) [2023-11-19 04:47:58,940 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_10~0) (_ bv0 32)) [2023-11-19 04:47:58,940 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:47:58,940 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2023-11-19 04:47:58,940 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 38) no Hoare annotation was computed. [2023-11-19 04:47:58,940 INFO L895 garLoopResultBuilder]: At program point L67-2(lines 67 73) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_10~0) (_ bv0 32)) [2023-11-19 04:47:58,940 INFO L899 garLoopResultBuilder]: For program point L67-3(lines 67 73) no Hoare annotation was computed. [2023-11-19 04:47:58,941 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 31) no Hoare annotation was computed. [2023-11-19 04:47:58,941 INFO L902 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: true [2023-11-19 04:47:58,941 INFO L902 garLoopResultBuilder]: At program point L55-1(line 55) the Hoare annotation is: true [2023-11-19 04:47:58,941 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-11-19 04:47:58,941 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 37) no Hoare annotation was computed. [2023-11-19 04:47:58,942 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-19 04:47:58,942 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-19 04:47:58,942 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-19 04:47:58,942 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-19 04:47:58,945 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 04:47:58,947 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:47:58,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:47:58 BoogieIcfgContainer [2023-11-19 04:47:58,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:47:58,957 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:47:58,957 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:47:58,957 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:47:58,958 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:53" (3/4) ... [2023-11-19 04:47:58,960 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:47:58,966 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 04:47:58,971 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 04:47:58,971 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 04:47:58,972 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:47:58,972 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:47:59,090 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:47:59,096 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:47:59,096 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:47:59,097 INFO L158 Benchmark]: Toolchain (without parser) took 6783.16ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 78.4MB in the beginning and 54.8MB in the end (delta: 23.5MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2023-11-19 04:47:59,097 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:47:59,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.89ms. Allocated memory is still 102.8MB. Free memory was 78.4MB in the beginning and 66.5MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:47:59,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.20ms. Allocated memory is still 102.8MB. Free memory was 66.5MB in the beginning and 64.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:47:59,098 INFO L158 Benchmark]: Boogie Preprocessor took 72.73ms. Allocated memory is still 102.8MB. Free memory was 64.6MB in the beginning and 63.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:47:59,098 INFO L158 Benchmark]: RCFGBuilder took 434.09ms. Allocated memory is still 102.8MB. Free memory was 63.0MB in the beginning and 50.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:47:59,099 INFO L158 Benchmark]: TraceAbstraction took 5651.95ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 50.5MB in the beginning and 60.1MB in the end (delta: -9.6MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2023-11-19 04:47:59,099 INFO L158 Benchmark]: Witness Printer took 139.40ms. Allocated memory is still 148.9MB. Free memory was 60.1MB in the beginning and 54.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:47:59,102 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.89ms. Allocated memory is still 102.8MB. Free memory was 78.4MB in the beginning and 66.5MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.20ms. Allocated memory is still 102.8MB. Free memory was 66.5MB in the beginning and 64.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.73ms. Allocated memory is still 102.8MB. Free memory was 64.6MB in the beginning and 63.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 434.09ms. Allocated memory is still 102.8MB. Free memory was 63.0MB in the beginning and 50.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5651.95ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 50.5MB in the beginning and 60.1MB in the end (delta: -9.6MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Witness Printer took 139.40ms. Allocated memory is still 148.9MB. Free memory was 60.1MB in the beginning and 54.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 4, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 709 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 466 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 317 IncrementalHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 243 mSDtfsCounter, 317 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 282 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=3, InterpolantAutomatonStates: 33, 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, 4 MinimizatonAttempts, 66 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 59 PreInvPairs, 90 NumberOfFragments, 39 HoareAnnotationTreeSize, 59 FomulaSimplifications, 1999 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 194 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 335 SizeOfPredicates, 25 NumberOfNonLiveVariables, 439 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 720/720 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: 67]: Loop Invariant Derived loop invariant: (var_1_10 <= 0) RESULT: Ultimate proved your program to be correct! [2023-11-19 04:47:59,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bcad990-a101-416e-baa0-082d6e72930d/bin/utaipan-verify-t7M7D8N6sZ/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