./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje --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 64bit --witnessprinter.graph.data.programhash 5963c871d6c136110dcc88c8949de566dbe1e9259aea809264af87f26dad49d7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:38:58,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:38:58,538 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 06:38:58,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:38:58,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:38:58,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:38:58,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:38:58,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:38:58,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:38:58,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:38:58,590 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:38:58,591 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:38:58,591 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:38:58,591 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:38:58,592 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:38:58,592 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:38:58,592 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:38:58,593 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:38:58,593 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:38:58,593 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:38:58,594 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:38:58,598 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:38:58,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:38:58,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:38:58,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:38:58,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:38:58,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:38:58,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:38:58,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:38:58,603 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:38:58,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:38:58,604 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:38:58,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:38:58,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:38:58,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:38:58,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:38:58,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:38:58,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:38:58,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:38:58,607 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:38:58,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:38:58,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:38:58,608 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:38:58,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:38:58,609 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_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5963c871d6c136110dcc88c8949de566dbe1e9259aea809264af87f26dad49d7 [2024-11-09 06:38:58,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:38:58,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:38:58,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:38:58,975 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:38:58,975 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:38:58,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c Unable to find full path for "g++" [2024-11-09 06:39:00,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:39:01,195 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:39:01,196 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c [2024-11-09 06:39:01,208 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/data/871d92245/300402af839e402080b218673a5b9afa/FLAGaf6f34cc4 [2024-11-09 06:39:01,492 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/data/871d92245/300402af839e402080b218673a5b9afa [2024-11-09 06:39:01,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:39:01,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:39:01,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:39:01,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:39:01,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:39:01,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9aea22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01, skipping insertion in model container [2024-11-09 06:39:01,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:39:01,732 WARN L250 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_9f427326-9b06-41a4-b1f7-2252457122a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c[1246,1259] [2024-11-09 06:39:01,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:39:01,803 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:39:01,816 WARN L250 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_9f427326-9b06-41a4-b1f7-2252457122a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c[1246,1259] [2024-11-09 06:39:01,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:39:01,861 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:39:01,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01 WrapperNode [2024-11-09 06:39:01,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:39:01,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:39:01,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:39:01,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:39:01,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,936 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 213 [2024-11-09 06:39:01,937 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:39:01,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:39:01,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:39:01,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:39:01,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,972 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:39:01,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:39:01,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:39:01,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:39:01,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (1/1) ... [2024-11-09 06:39:01,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:39:02,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:02,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:39:02,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:39:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:39:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:39:02,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:39:02,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:39:02,184 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:39:02,186 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:39:02,680 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-09 06:39:02,680 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:39:03,038 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:39:03,038 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:39:03,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:39:03 BoogieIcfgContainer [2024-11-09 06:39:03,039 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:39:03,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:39:03,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:39:03,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:39:03,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:39:01" (1/3) ... [2024-11-09 06:39:03,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa74b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:39:03, skipping insertion in model container [2024-11-09 06:39:03,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:01" (2/3) ... [2024-11-09 06:39:03,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa74b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:39:03, skipping insertion in model container [2024-11-09 06:39:03,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:39:03" (3/3) ... [2024-11-09 06:39:03,051 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal181.c [2024-11-09 06:39:03,071 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:39:03,071 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:39:03,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:39:03,141 INFO L333 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, 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;@2bd14752, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:39:03,142 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:39:03,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:03,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 06:39:03,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:03,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 06:39:03,156 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:03,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:03,163 INFO L85 PathProgramCache]: Analyzing trace with hash 8326422, now seen corresponding path program 1 times [2024-11-09 06:39:03,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:03,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816986115] [2024-11-09 06:39:03,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:03,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:39:03,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:39:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:39:03,619 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:39:03,621 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:39:03,622 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:39:03,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:39:03,629 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:39:03,651 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:39:03,660 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:39:03,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:39:03 BoogieIcfgContainer [2024-11-09 06:39:03,664 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:39:03,664 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:39:03,665 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:39:03,666 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:39:03,666 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:39:03" (3/4) ... [2024-11-09 06:39:03,669 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:39:03,670 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:39:03,672 INFO L158 Benchmark]: Toolchain (without parser) took 2173.34ms. Allocated memory is still 161.5MB. Free memory was 127.1MB in the beginning and 85.4MB in the end (delta: 41.7MB). Peak memory consumption was 43.9MB. Max. memory is 16.1GB. [2024-11-09 06:39:03,673 INFO L158 Benchmark]: CDTParser took 1.26ms. Allocated memory is still 127.9MB. Free memory was 92.3MB in the beginning and 92.3MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:39:03,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.22ms. Allocated memory is still 161.5MB. Free memory was 127.1MB in the beginning and 112.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:39:03,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.91ms. Allocated memory is still 161.5MB. Free memory was 112.8MB in the beginning and 107.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:39:03,675 INFO L158 Benchmark]: Boogie Preprocessor took 40.47ms. Allocated memory is still 161.5MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:39:03,676 INFO L158 Benchmark]: RCFGBuilder took 1060.34ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 114.7MB in the end (delta: -8.9MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2024-11-09 06:39:03,678 INFO L158 Benchmark]: TraceAbstraction took 622.62ms. Allocated memory is still 161.5MB. Free memory was 113.7MB in the beginning and 86.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 06:39:03,679 INFO L158 Benchmark]: Witness Printer took 6.14ms. Allocated memory is still 161.5MB. Free memory was 86.4MB in the beginning and 85.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:39:03,682 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26ms. Allocated memory is still 127.9MB. Free memory was 92.3MB in the beginning and 92.3MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.22ms. Allocated memory is still 161.5MB. Free memory was 127.1MB in the beginning and 112.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.91ms. Allocated memory is still 161.5MB. Free memory was 112.8MB in the beginning and 107.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.47ms. Allocated memory is still 161.5MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1060.34ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 114.7MB in the end (delta: -8.9MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. * TraceAbstraction took 622.62ms. Allocated memory is still 161.5MB. Free memory was 113.7MB in the beginning and 86.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 6.14ms. Allocated memory is still 161.5MB. Free memory was 86.4MB in the beginning and 85.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 79, overapproximation of bitwiseAnd at line 68. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 32); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (32 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_3 var_7 = 0; [L33] const SORT_1 var_11 = 0; [L34] const SORT_3 var_24 = 1; [L36] SORT_1 input_2; [L37] SORT_3 input_4; [L38] SORT_1 input_5; [L39] SORT_1 input_6; [L41] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L41] SORT_3 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L42] EXPR __VERIFIER_nondet_uint() & mask_SORT_1 [L42] SORT_1 state_12 = __VERIFIER_nondet_uint() & mask_SORT_1; [L43] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L43] SORT_3 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L44] EXPR __VERIFIER_nondet_uint() & mask_SORT_1 [L44] SORT_1 state_17 = __VERIFIER_nondet_uint() & mask_SORT_1; [L46] SORT_3 init_9_arg_1 = var_7; [L47] state_8 = init_9_arg_1 [L48] SORT_1 init_13_arg_1 = var_11; [L49] state_12 = init_13_arg_1 [L50] SORT_3 init_15_arg_1 = var_7; [L51] state_14 = init_15_arg_1 [L52] SORT_1 init_18_arg_1 = var_11; [L53] state_17 = init_18_arg_1 VAL [mask_SORT_1=-1, mask_SORT_3=1, state_12=0, state_14=0, state_17=0, state_8=0, var_11=0, var_24=1, var_7=0] [L56] input_2 = __VERIFIER_nondet_uint() [L57] input_4 = __VERIFIER_nondet_uchar() [L58] input_5 = __VERIFIER_nondet_uint() [L59] input_6 = __VERIFIER_nondet_uint() [L62] SORT_3 var_10_arg_0 = state_8; [L63] SORT_3 var_10 = ~var_10_arg_0; [L64] SORT_3 var_16_arg_0 = state_14; [L65] SORT_1 var_16_arg_1 = state_12; [L66] SORT_1 var_16_arg_2 = input_2; [L67] SORT_1 var_16 = var_16_arg_0 ? var_16_arg_1 : var_16_arg_2; [L68] EXPR var_16 & mask_SORT_1 [L68] var_16 = var_16 & mask_SORT_1 [L69] SORT_3 var_19_arg_0 = state_14; [L70] SORT_1 var_19_arg_1 = state_17; [L71] SORT_1 var_19_arg_2 = input_2; [L72] SORT_1 var_19 = var_19_arg_0 ? var_19_arg_1 : var_19_arg_2; [L73] EXPR var_19 & mask_SORT_1 [L73] var_19 = var_19 & mask_SORT_1 [L74] SORT_1 var_20_arg_0 = var_16; [L75] SORT_1 var_20_arg_1 = var_19; [L76] SORT_3 var_20 = var_20_arg_0 == var_20_arg_1; [L77] SORT_3 var_21_arg_0 = var_10; [L78] SORT_3 var_21_arg_1 = var_20; [L79] EXPR var_21_arg_0 | var_21_arg_1 [L79] SORT_3 var_21 = var_21_arg_0 | var_21_arg_1; [L80] SORT_3 var_25_arg_0 = var_21; [L81] SORT_3 var_25 = ~var_25_arg_0; [L82] SORT_3 var_26_arg_0 = var_24; [L83] SORT_3 var_26_arg_1 = var_25; [L84] EXPR var_26_arg_0 & var_26_arg_1 [L84] SORT_3 var_26 = var_26_arg_0 & var_26_arg_1; [L85] EXPR var_26 & mask_SORT_3 [L85] var_26 = var_26 & mask_SORT_3 [L86] SORT_3 bad_27_arg_0 = var_26; [L87] CALL __VERIFIER_assert(!(bad_27_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, 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=7occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 [2024-11-09 06:39:03,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje --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 64bit --witnessprinter.graph.data.programhash 5963c871d6c136110dcc88c8949de566dbe1e9259aea809264af87f26dad49d7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:39:06,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:39:06,394 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-09 06:39:06,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:39:06,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:39:06,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:39:06,437 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:39:06,438 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:39:06,439 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:39:06,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:39:06,444 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:39:06,445 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:39:06,445 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:39:06,445 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:39:06,446 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:39:06,446 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:39:06,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:39:06,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:39:06,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:39:06,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:39:06,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:39:06,450 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:39:06,451 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:39:06,451 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:39:06,451 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:39:06,452 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:39:06,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:39:06,452 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:39:06,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:39:06,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:39:06,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:39:06,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:39:06,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:39:06,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:39:06,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:39:06,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:39:06,456 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:39:06,457 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:39:06,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:39:06,457 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:39:06,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5963c871d6c136110dcc88c8949de566dbe1e9259aea809264af87f26dad49d7 [2024-11-09 06:39:06,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:39:06,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:39:06,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:39:06,864 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:39:06,865 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:39:06,866 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c Unable to find full path for "g++" [2024-11-09 06:39:08,896 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:39:09,135 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:39:09,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c [2024-11-09 06:39:09,149 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/data/be9559667/0d8fecc640a643c8a62241a472bbed6a/FLAGd800d3d6c [2024-11-09 06:39:09,171 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/data/be9559667/0d8fecc640a643c8a62241a472bbed6a [2024-11-09 06:39:09,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:39:09,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:39:09,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:39:09,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:39:09,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:39:09,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7904c6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09, skipping insertion in model container [2024-11-09 06:39:09,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,230 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:39:09,480 WARN L250 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_9f427326-9b06-41a4-b1f7-2252457122a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c[1246,1259] [2024-11-09 06:39:09,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:39:09,596 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:39:09,612 WARN L250 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_9f427326-9b06-41a4-b1f7-2252457122a0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal181.c[1246,1259] [2024-11-09 06:39:09,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:39:09,712 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:39:09,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09 WrapperNode [2024-11-09 06:39:09,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:39:09,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:39:09,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:39:09,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:39:09,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,771 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 125 [2024-11-09 06:39:09,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:39:09,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:39:09,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:39:09,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:39:09,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,813 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:39:09,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:39:09,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:39:09,832 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:39:09,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (1/1) ... [2024-11-09 06:39:09,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:39:09,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:09,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:39:09,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:39:09,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:39:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:39:09,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:39:09,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:39:10,046 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:39:10,049 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:39:10,340 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-09 06:39:10,341 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:39:10,354 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:39:10,354 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:39:10,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:39:10 BoogieIcfgContainer [2024-11-09 06:39:10,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:39:10,359 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:39:10,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:39:10,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:39:10,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:39:09" (1/3) ... [2024-11-09 06:39:10,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72218d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:39:10, skipping insertion in model container [2024-11-09 06:39:10,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:39:09" (2/3) ... [2024-11-09 06:39:10,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72218d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:39:10, skipping insertion in model container [2024-11-09 06:39:10,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:39:10" (3/3) ... [2024-11-09 06:39:10,368 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal181.c [2024-11-09 06:39:10,386 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:39:10,386 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:39:10,460 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:39:10,468 INFO L333 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, 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;@7897a45e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:39:10,468 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:39:10,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:10,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 06:39:10,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:10,481 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 06:39:10,481 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:10,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:10,488 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2024-11-09 06:39:10,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:39:10,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249405771] [2024-11-09 06:39:10,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:10,503 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 [2024-11-09 06:39:10,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:39:10,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:39:10,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:39:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:10,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:39:10,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:10,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:10,997 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:39:10,999 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:39:10,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249405771] [2024-11-09 06:39:11,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249405771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:11,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:11,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:39:11,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171383970] [2024-11-09 06:39:11,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:11,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:39:11,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:39:11,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:39:11,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:39:11,049 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:11,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:11,088 INFO L93 Difference]: Finished difference Result 18 states and 26 transitions. [2024-11-09 06:39:11,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:39:11,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-09 06:39:11,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:11,099 INFO L225 Difference]: With dead ends: 18 [2024-11-09 06:39:11,099 INFO L226 Difference]: Without dead ends: 9 [2024-11-09 06:39:11,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:39:11,105 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:11,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:39:11,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-09 06:39:11,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-09 06:39:11,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-11-09 06:39:11,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-09 06:39:11,139 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-09 06:39:11,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:11,140 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-09 06:39:11,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:39:11,140 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-09 06:39:11,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:39:11,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:11,141 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:11,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:39:11,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:39:11,342 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:11,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:11,343 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2024-11-09 06:39:11,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:39:11,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773582281] [2024-11-09 06:39:11,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:11,348 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 [2024-11-09 06:39:11,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:39:11,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:39:11,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:39:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:11,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 06:39:11,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:11,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:11,666 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:39:12,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:12,613 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:39:12,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773582281] [2024-11-09 06:39:12,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773582281] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:39:12,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1840693706] [2024-11-09 06:39:12,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:12,614 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:39:12,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:39:12,617 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:39:12,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 06:39:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:12,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 06:39:12,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:13,040 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:39:14,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:14,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1840693706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:39:14,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054350874] [2024-11-09 06:39:14,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:14,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:14,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:14,012 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:39:14,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:39:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:14,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 06:39:14,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:14,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:14,308 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:39:15,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:15,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054350874] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:39:15,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:39:15,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 14 [2024-11-09 06:39:15,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294778280] [2024-11-09 06:39:15,194 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:39:15,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:39:15,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:39:15,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:39:15,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:39:15,196 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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) [2024-11-09 06:39:15,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:15,331 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2024-11-09 06:39:15,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:39:15,333 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 06:39:15,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:15,333 INFO L225 Difference]: With dead ends: 14 [2024-11-09 06:39:15,334 INFO L226 Difference]: Without dead ends: 12 [2024-11-09 06:39:15,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:39:15,335 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:15,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:39:15,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-09 06:39:15,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-09 06:39:15,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-11-09 06:39:15,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-09 06:39:15,344 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-09 06:39:15,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:15,346 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-09 06:39:15,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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) [2024-11-09 06:39:15,347 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-09 06:39:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:39:15,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:15,347 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-09 06:39:15,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 06:39:15,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:39:15,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-09 06:39:15,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:39:15,949 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:15,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:15,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2024-11-09 06:39:15,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:39:15,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826879222] [2024-11-09 06:39:15,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:39:15,952 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 [2024-11-09 06:39:15,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:39:15,959 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:39:15,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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 (6)] Waiting until timeout for monitored process [2024-11-09 06:39:16,107 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:39:16,107 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:39:16,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 06:39:16,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:16,262 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:16,262 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:39:17,380 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:17,381 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:39:17,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826879222] [2024-11-09 06:39:17,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826879222] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:39:17,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [438505681] [2024-11-09 06:39:17,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:39:17,382 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:39:17,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:39:17,385 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:39:17,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-09 06:39:17,646 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:39:17,646 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:39:17,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:39:17,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:17,963 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:17,963 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:39:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:22,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [438505681] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:39:22,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627627514] [2024-11-09 06:39:22,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:39:22,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:22,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:22,554 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:39:22,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:39:22,721 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:39:22,722 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:39:22,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 06:39:22,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:24,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:39:45,893 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:39:45,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627627514] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:39:45,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:39:45,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 24 [2024-11-09 06:39:45,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389193761] [2024-11-09 06:39:45,894 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:39:45,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 06:39:45,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:39:45,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 06:39:45,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=447, Unknown=2, NotChecked=0, Total=552 [2024-11-09 06:39:45,898 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 24 states have internal predecessors, (52), 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) [2024-11-09 06:39:48,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:48,960 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2024-11-09 06:39:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:39:48,961 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 24 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 06:39:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:48,962 INFO L225 Difference]: With dead ends: 12 [2024-11-09 06:39:48,962 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:39:48,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=184, Invalid=626, Unknown=2, NotChecked=0, Total=812 [2024-11-09 06:39:48,964 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:48,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:39:48,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:39:48,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:39:48,967 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) [2024-11-09 06:39:48,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:39:48,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-09 06:39:48,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:48,968 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:39:48,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 24 states have internal predecessors, (52), 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) [2024-11-09 06:39:48,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:39:48,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:39:48,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:39:48,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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 (6)] Ended with exit code 0 [2024-11-09 06:39:49,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 06:39:49,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-09 06:39:49,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:39:49,580 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-09 06:39:49,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 06:39:50,719 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:39:50,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:39:50 BoogieIcfgContainer [2024-11-09 06:39:50,741 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:39:50,742 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:39:50,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:39:50,744 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:39:50,744 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:39:10" (3/4) ... [2024-11-09 06:39:50,747 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:39:50,765 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-09 06:39:50,765 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 06:39:50,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 06:39:50,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 06:39:50,819 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:156) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.lambda$2(GraphMLCorrectnessWitnessGenerator.java:91) at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.makeGraphMLString(GraphMLCorrectnessWitnessGenerator.java:111) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:168) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:143) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:130) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 06:39:50,825 INFO L158 Benchmark]: Toolchain (without parser) took 41647.13ms. Allocated memory was 71.3MB in the beginning and 207.6MB in the end (delta: 136.3MB). Free memory was 47.1MB in the beginning and 159.9MB in the end (delta: -112.8MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2024-11-09 06:39:50,826 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 71.3MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 86.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:39:50,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.01ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 46.9MB in the beginning and 69.1MB in the end (delta: -22.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-11-09 06:39:50,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.50ms. Allocated memory is still 92.3MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:39:50,827 INFO L158 Benchmark]: Boogie Preprocessor took 53.96ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 65.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:39:50,827 INFO L158 Benchmark]: RCFGBuilder took 525.20ms. Allocated memory is still 92.3MB. Free memory was 65.3MB in the beginning and 49.5MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:39:50,828 INFO L158 Benchmark]: TraceAbstraction took 40382.16ms. Allocated memory was 92.3MB in the beginning and 207.6MB in the end (delta: 115.3MB). Free memory was 49.0MB in the beginning and 163.1MB in the end (delta: -114.1MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2024-11-09 06:39:50,828 INFO L158 Benchmark]: Witness Printer took 82.44ms. Allocated memory is still 207.6MB. Free memory was 163.1MB in the beginning and 159.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:39:50,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 71.3MB. Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 86.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.01ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 46.9MB in the beginning and 69.1MB in the end (delta: -22.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.50ms. Allocated memory is still 92.3MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.96ms. Allocated memory is still 92.3MB. Free memory was 67.0MB in the beginning and 65.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.20ms. Allocated memory is still 92.3MB. Free memory was 65.3MB in the beginning and 49.5MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 40382.16ms. Allocated memory was 92.3MB in the beginning and 207.6MB in the end (delta: 115.3MB). Free memory was 49.0MB in the beginning and 163.1MB in the end (delta: -114.1MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 82.44ms. Allocated memory is still 207.6MB. Free memory was 163.1MB in the beginning and 159.9MB in the end (delta: 3.1MB). 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: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.1s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 18.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 33.1s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 33 QuantifiedInterpolants, 6224 SizeOfPredicates, 52 NumberOfNonLiveVariables, 632 ConjunctsInSsa, 185 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 5/54 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: 54]: Loop Invariant Derived loop invariant: (((((((((1 == mask_SORT_3) && (0 == ((1 + mask_SORT_1) % 4294967296))) && (0 == var_7)) && (0 == state_8)) && (0 == state_14)) && (state_17 == state_12)) && (1 == var_24)) || (((((((1 == mask_SORT_3) && (0 == ((1 + mask_SORT_1) % 4294967296))) && (0 == var_7)) && (1 == state_14)) && (1 == state_8)) && (state_17 == state_12)) && (1 == var_24))) || ((((((1 == mask_SORT_3) && (0 == ((1 + mask_SORT_1) % 4294967296))) && (0 == var_7)) && (1 == state_8)) && (0 == state_14)) && (1 == var_24))) * Results from de.uni_freiburg.informatik.ultimate.witnessprinter: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-09 06:39:51,050 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-09 06:39:51,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f427326-9b06-41a4-b1f7-2252457122a0/bin/utaipan-verify-YMUCfTKeje/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: ERROR: ExceptionOrErrorResult: NullPointerException: null