./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/simple_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/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_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/simple_1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/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 32bit --witnessprinter.graph.data.programhash 311ca7a26a816b19bf2f80b95fa3e10e4e95b99dff1e77c10bd7566050baa8ec --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:18:52,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:18:52,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:18:52,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:18:52,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:18:52,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:18:52,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:18:52,278 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:18:52,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:18:52,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:18:52,283 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:18:52,284 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:18:52,285 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:18:52,287 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:18:52,288 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:18:52,289 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:18:52,289 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:18:52,290 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:18:52,290 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:18:52,291 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:18:52,295 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:18:52,295 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:18:52,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:18:52,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:18:52,297 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:18:52,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:18:52,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:18:52,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:18:52,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:18:52,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:18:52,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:18:52,304 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:18:52,305 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:18:52,305 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:18:52,305 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:18:52,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:18:52,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:18:52,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:18:52,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:18:52,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:18:52,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:18:52,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:18:52,311 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:18:52,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:18:52,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:18:52,312 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:18:52,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:18:52,313 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_dfac332e-4c4f-4868-9239-50c67033a9e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 311ca7a26a816b19bf2f80b95fa3e10e4e95b99dff1e77c10bd7566050baa8ec [2024-11-09 07:18:52,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:18:52,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:18:52,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:18:52,760 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:18:52,761 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:18:52,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/loop-acceleration/simple_1-1.c Unable to find full path for "g++" [2024-11-09 07:18:55,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:18:55,589 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:18:55,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/sv-benchmarks/c/loop-acceleration/simple_1-1.c [2024-11-09 07:18:55,603 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/data/1584c21b1/a4bfdb7a716147a795e38ac8992113aa/FLAG487c51925 [2024-11-09 07:18:55,626 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/data/1584c21b1/a4bfdb7a716147a795e38ac8992113aa [2024-11-09 07:18:55,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:18:55,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:18:55,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:18:55,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:18:55,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:18:55,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:18:55" (1/1) ... [2024-11-09 07:18:55,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44061886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:55, skipping insertion in model container [2024-11-09 07:18:55,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:18:55" (1/1) ... [2024-11-09 07:18:55,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:18:55,962 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_dfac332e-4c4f-4868-9239-50c67033a9e6/sv-benchmarks/c/loop-acceleration/simple_1-1.c[322,335] [2024-11-09 07:18:55,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:18:55,991 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:18:56,007 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_dfac332e-4c4f-4868-9239-50c67033a9e6/sv-benchmarks/c/loop-acceleration/simple_1-1.c[322,335] [2024-11-09 07:18:56,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:18:56,032 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:18:56,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56 WrapperNode [2024-11-09 07:18:56,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:18:56,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:18:56,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:18:56,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:18:56,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (1/1) ... [2024-11-09 07:18:56,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (1/1) ... [2024-11-09 07:18:56,080 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-11-09 07:18:56,082 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:18:56,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:18:56,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:18:56,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:18:56,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (1/1) ... [2024-11-09 07:18:56,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (1/1) ... [2024-11-09 07:18:56,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (1/1) ... [2024-11-09 07:18:56,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (1/1) ... [2024-11-09 07:18:56,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (1/1) ... [2024-11-09 07:18:56,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (1/1) ... [2024-11-09 07:18:56,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (1/1) ... [2024-11-09 07:18:56,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (1/1) ... [2024-11-09 07:18:56,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:18:56,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:18:56,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:18:56,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:18:56,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (1/1) ... [2024-11-09 07:18:56,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:18:56,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:56,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:18:56,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:18:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:18:56,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:18:56,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:18:56,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:18:56,263 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:18:56,266 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:18:56,381 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-09 07:18:56,381 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:18:56,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:18:56,411 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:18:56,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:18:56 BoogieIcfgContainer [2024-11-09 07:18:56,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:18:56,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:18:56,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:18:56,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:18:56,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:18:55" (1/3) ... [2024-11-09 07:18:56,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16388fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:18:56, skipping insertion in model container [2024-11-09 07:18:56,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:56" (2/3) ... [2024-11-09 07:18:56,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16388fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:18:56, skipping insertion in model container [2024-11-09 07:18:56,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:18:56" (3/3) ... [2024-11-09 07:18:56,423 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_1-1.c [2024-11-09 07:18:56,447 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:18:56,447 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:18:56,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:18:56,532 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;@3404410a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:18:56,533 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:18:56,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 07:18:56,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 07:18:56,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:56,551 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 07:18:56,551 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:18:56,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:56,558 INFO L85 PathProgramCache]: Analyzing trace with hash 56737057, now seen corresponding path program 1 times [2024-11-09 07:18:56,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:18:56,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946046486] [2024-11-09 07:18:56,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:56,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:18:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:56,909 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 07:18:56,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:18:56,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946046486] [2024-11-09 07:18:56,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946046486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:18:56,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:18:56,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:18:56,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289781808] [2024-11-09 07:18:56,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:18:56,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:18:56,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:18:56,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:18:56,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:18:56,952 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 07:18:57,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:57,003 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2024-11-09 07:18:57,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:18:57,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 07:18:57,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:57,018 INFO L225 Difference]: With dead ends: 17 [2024-11-09 07:18:57,018 INFO L226 Difference]: Without dead ends: 9 [2024-11-09 07:18:57,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:18:57,027 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:57,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 9 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:18:57,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-09 07:18:57,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-09 07:18:57,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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 07:18:57,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2024-11-09 07:18:57,077 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 5 [2024-11-09 07:18:57,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:57,077 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-09 07:18:57,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 07:18:57,078 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-11-09 07:18:57,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 07:18:57,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:57,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:18:57,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:18:57,080 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:18:57,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:57,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1514514394, now seen corresponding path program 1 times [2024-11-09 07:18:57,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:18:57,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720002155] [2024-11-09 07:18:57,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:57,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:18:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:18:57,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:18:57,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720002155] [2024-11-09 07:18:57,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720002155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:18:57,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667521139] [2024-11-09 07:18:57,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:57,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:57,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:57,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:18:57,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:18:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:57,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:18:57,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:18:57,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:57,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:18:57,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667521139] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:57,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1047486190] [2024-11-09 07:18:57,562 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2024-11-09 07:18:57,563 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:18:57,567 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:18:57,575 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:18:57,575 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:18:58,156 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:18:58,708 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '90#(exists ((|v_ULTIMATE.start_main_~x~0#1_22| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (mod (+ |v_ULTIMATE.start_main_~x~0#1_22| 4294967294) 4294967296) 268435454) (= (mod |v_ULTIMATE.start_main_~x~0#1_22| 2) 0) (<= 2 |v_ULTIMATE.start_main_~x~0#1_22|) (<= 268435455 (mod |v_ULTIMATE.start_main_~x~0#1_22| 4294967296))))' at error location [2024-11-09 07:18:58,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:18:58,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:18:58,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-09 07:18:58,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894675418] [2024-11-09 07:18:58,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:18:58,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:18:58,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:18:58,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:18:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:18:58,713 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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 07:18:58,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:58,809 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-09 07:18:58,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:18:58,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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) Word has length 7 [2024-11-09 07:18:58,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:58,813 INFO L225 Difference]: With dead ends: 18 [2024-11-09 07:18:58,813 INFO L226 Difference]: Without dead ends: 14 [2024-11-09 07:18:58,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:18:58,816 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:58,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 12 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:18:58,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-09 07:18:58,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-09 07:18:58,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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 07:18:58,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-11-09 07:18:58,824 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2024-11-09 07:18:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:58,824 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2024-11-09 07:18:58,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 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 07:18:58,825 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-11-09 07:18:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 07:18:58,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:58,827 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1] [2024-11-09 07:18:58,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 07:18:59,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:59,028 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:18:59,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:59,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1105811893, now seen corresponding path program 2 times [2024-11-09 07:18:59,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:18:59,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932498300] [2024-11-09 07:18:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:59,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:18:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:18:59,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:18:59,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932498300] [2024-11-09 07:18:59,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932498300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:18:59,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206877543] [2024-11-09 07:18:59,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:18:59,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:59,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:59,242 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:18:59,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:18:59,314 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 07:18:59,314 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:18:59,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 07:18:59,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:59,365 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:18:59,365 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:59,527 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:18:59,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206877543] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:59,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [436963668] [2024-11-09 07:18:59,530 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2024-11-09 07:18:59,531 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:18:59,531 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:18:59,532 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:18:59,534 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:18:59,802 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:19:00,331 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '224#(exists ((|v_ULTIMATE.start_main_~x~0#1_35| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 268435455 (mod |v_ULTIMATE.start_main_~x~0#1_35| 4294967296)) (<= 2 |v_ULTIMATE.start_main_~x~0#1_35|) (= (mod |v_ULTIMATE.start_main_~x~0#1_35| 2) 0) (<= (mod (+ |v_ULTIMATE.start_main_~x~0#1_35| 4294967294) 4294967296) 268435454)))' at error location [2024-11-09 07:19:00,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:19:00,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:19:00,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-09 07:19:00,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510535592] [2024-11-09 07:19:00,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:19:00,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:19:00,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:19:00,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:19:00,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-09 07:19:00,339 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 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 07:19:00,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:19:00,720 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2024-11-09 07:19:00,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 07:19:00,722 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 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 13 [2024-11-09 07:19:00,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:19:00,723 INFO L225 Difference]: With dead ends: 30 [2024-11-09 07:19:00,724 INFO L226 Difference]: Without dead ends: 26 [2024-11-09 07:19:00,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:19:00,727 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:19:00,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:19:00,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-09 07:19:00,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-09 07:19:00,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 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 07:19:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2024-11-09 07:19:00,741 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 13 [2024-11-09 07:19:00,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:19:00,742 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2024-11-09 07:19:00,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 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 07:19:00,743 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2024-11-09 07:19:00,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 07:19:00,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:19:00,744 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1] [2024-11-09 07:19:00,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:19:00,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:19:00,949 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:19:00,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:19:00,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1114319085, now seen corresponding path program 3 times [2024-11-09 07:19:00,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:19:00,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961854946] [2024-11-09 07:19:00,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:19:00,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:19:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:19:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:19:01,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:19:01,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961854946] [2024-11-09 07:19:01,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961854946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:19:01,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685019991] [2024-11-09 07:19:01,482 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:19:01,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:19:01,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:19:01,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:19:01,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:19:01,546 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:19:01,546 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:19:01,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 07:19:01,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:19:01,629 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:19:01,630 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:19:02,196 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:19:02,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685019991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:19:02,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [236230367] [2024-11-09 07:19:02,200 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2024-11-09 07:19:02,201 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:19:02,201 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:19:02,202 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:19:02,202 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:19:02,452 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:19:03,157 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '484#(exists ((|v_ULTIMATE.start_main_~x~0#1_60| Int)) (and (<= 2 |v_ULTIMATE.start_main_~x~0#1_60|) (<= (mod (+ |v_ULTIMATE.start_main_~x~0#1_60| 4294967294) 4294967296) 268435454) (<= 1 |#StackHeapBarrier|) (= (mod |v_ULTIMATE.start_main_~x~0#1_60| 2) 0) (<= 268435455 (mod |v_ULTIMATE.start_main_~x~0#1_60| 4294967296))))' at error location [2024-11-09 07:19:03,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:19:03,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:19:03,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-11-09 07:19:03,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267537971] [2024-11-09 07:19:03,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:19:03,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 07:19:03,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:19:03,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 07:19:03,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=663, Unknown=0, NotChecked=0, Total=870 [2024-11-09 07:19:03,164 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 25 states, 25 states have (on average 1.96) internal successors, (49), 24 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:19:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:19:10,233 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2024-11-09 07:19:10,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 07:19:10,234 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.96) internal successors, (49), 24 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 07:19:10,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:19:10,235 INFO L225 Difference]: With dead ends: 54 [2024-11-09 07:19:10,235 INFO L226 Difference]: Without dead ends: 50 [2024-11-09 07:19:10,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=457, Invalid=1103, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 07:19:10,237 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:19:10,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 28 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:19:10,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-09 07:19:10,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-09 07:19:10,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.0204081632653061) internal successors, (50), 49 states have internal predecessors, (50), 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 07:19:10,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2024-11-09 07:19:10,249 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 25 [2024-11-09 07:19:10,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:19:10,249 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2024-11-09 07:19:10,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.96) internal successors, (49), 24 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:19:10,250 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2024-11-09 07:19:10,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 07:19:10,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:19:10,251 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1] [2024-11-09 07:19:10,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 07:19:10,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:19:10,455 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:19:10,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:19:10,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1458963761, now seen corresponding path program 4 times [2024-11-09 07:19:10,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:19:10,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999533491] [2024-11-09 07:19:10,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:19:10,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:19:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:19:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:19:11,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:19:11,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999533491] [2024-11-09 07:19:11,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999533491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:19:11,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712659443] [2024-11-09 07:19:11,525 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:19:11,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:19:11,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:19:11,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:19:11,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:19:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:19:11,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-09 07:19:11,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:19:11,742 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:19:11,743 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:19:13,257 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:19:13,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712659443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:19:13,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1191930708] [2024-11-09 07:19:13,260 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2024-11-09 07:19:13,260 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:19:13,260 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:19:13,261 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:19:13,261 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:19:13,386 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:19:14,109 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '996#(exists ((|v_ULTIMATE.start_main_~x~0#1_109| Int)) (and (<= (mod (+ |v_ULTIMATE.start_main_~x~0#1_109| 4294967294) 4294967296) 268435454) (<= 1 |#StackHeapBarrier|) (= (mod |v_ULTIMATE.start_main_~x~0#1_109| 2) 0) (<= 268435455 (mod |v_ULTIMATE.start_main_~x~0#1_109| 4294967296)) (<= 2 |v_ULTIMATE.start_main_~x~0#1_109|)))' at error location [2024-11-09 07:19:14,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:19:14,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:19:14,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2024-11-09 07:19:14,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608826051] [2024-11-09 07:19:14,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:19:14,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-09 07:19:14,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:19:14,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-09 07:19:14,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=687, Invalid=2175, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 07:19:14,114 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 49 states, 49 states have (on average 1.9795918367346939) internal successors, (97), 48 states have internal predecessors, (97), 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 07:21:19,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:21:19,878 INFO L93 Difference]: Finished difference Result 102 states and 125 transitions. [2024-11-09 07:21:19,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-09 07:21:19,879 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.9795918367346939) internal successors, (97), 48 states have internal predecessors, (97), 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 49 [2024-11-09 07:21:19,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:21:19,880 INFO L225 Difference]: With dead ends: 102 [2024-11-09 07:21:19,880 INFO L226 Difference]: Without dead ends: 98 [2024-11-09 07:21:19,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 127.6s TimeCoverageRelationStatistics Valid=1760, Invalid=3935, Unknown=5, NotChecked=0, Total=5700 [2024-11-09 07:21:19,886 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:21:19,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 58 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 07:21:19,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-09 07:21:19,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-09 07:21:19,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.0103092783505154) internal successors, (98), 97 states have internal predecessors, (98), 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 07:21:19,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2024-11-09 07:21:19,903 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 49 [2024-11-09 07:21:19,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:21:19,903 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2024-11-09 07:21:19,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.9795918367346939) internal successors, (97), 48 states have internal predecessors, (97), 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 07:21:19,903 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2024-11-09 07:21:19,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 07:21:19,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:21:19,906 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 1, 1, 1, 1, 1] [2024-11-09 07:21:19,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 07:21:20,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:21:20,107 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:21:20,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:21:20,107 INFO L85 PathProgramCache]: Analyzing trace with hash 974054983, now seen corresponding path program 5 times [2024-11-09 07:21:20,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:21:20,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654958075] [2024-11-09 07:21:20,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:21:20,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:22,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:22,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:22,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654958075] [2024-11-09 07:21:22,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654958075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:21:22,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239927874] [2024-11-09 07:21:22,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:21:22,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:21:22,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:21:22,953 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:21:22,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfac332e-4c4f-4868-9239-50c67033a9e6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:21:23,263 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2024-11-09 07:21:23,264 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:21:23,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-09 07:21:23,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:21:23,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:23,534 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:21:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:21:28,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239927874] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:21:28,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1605398564] [2024-11-09 07:21:28,900 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2024-11-09 07:21:28,900 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:21:28,901 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:21:28,901 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:21:28,901 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:21:29,016 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:21:30,234 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2012#(exists ((|v_ULTIMATE.start_main_~x~0#1_206| Int)) (and (<= (mod (+ |v_ULTIMATE.start_main_~x~0#1_206| 4294967294) 4294967296) 268435454) (<= 1 |#StackHeapBarrier|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_206|) (= (mod |v_ULTIMATE.start_main_~x~0#1_206| 2) 0) (<= 268435455 (mod |v_ULTIMATE.start_main_~x~0#1_206| 4294967296))))' at error location [2024-11-09 07:21:30,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:21:30,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:21:30,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 96 [2024-11-09 07:21:30,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012403298] [2024-11-09 07:21:30,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:21:30,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2024-11-09 07:21:30,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:30,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2024-11-09 07:21:30,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2511, Invalid=7791, Unknown=0, NotChecked=0, Total=10302 [2024-11-09 07:21:30,245 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand has 97 states, 97 states have (on average 1.9896907216494846) internal successors, (193), 96 states have internal predecessors, (193), 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 07:21:53,749 WARN L286 SmtUtils]: Spent 20.03s on a formula simplification. DAG size of input: 190 DAG size of output: 18 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:22:12,625 WARN L286 SmtUtils]: Spent 16.31s on a formula simplification. DAG size of input: 186 DAG size of output: 22 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:22:36,887 WARN L286 SmtUtils]: Spent 19.56s on a formula simplification. DAG size of input: 182 DAG size of output: 14 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:22:57,999 WARN L286 SmtUtils]: Spent 14.50s on a formula simplification. DAG size of input: 178 DAG size of output: 18 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:23:19,288 WARN L286 SmtUtils]: Spent 12.72s on a formula simplification. DAG size of input: 174 DAG size of output: 18 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:23:51,690 WARN L286 SmtUtils]: Spent 21.55s on a formula simplification. DAG size of input: 170 DAG size of output: 22 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:24:18,284 WARN L286 SmtUtils]: Spent 13.71s on a formula simplification. DAG size of input: 166 DAG size of output: 18 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:24:48,722 WARN L286 SmtUtils]: Spent 15.70s on a formula simplification. DAG size of input: 162 DAG size of output: 22 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:25:19,754 WARN L286 SmtUtils]: Spent 13.46s on a formula simplification. DAG size of input: 158 DAG size of output: 18 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:25:50,576 WARN L286 SmtUtils]: Spent 12.09s on a formula simplification. DAG size of input: 154 DAG size of output: 18 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:26:24,406 WARN L286 SmtUtils]: Spent 12.95s on a formula simplification. DAG size of input: 150 DAG size of output: 14 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:26:57,378 WARN L286 SmtUtils]: Spent 9.89s on a formula simplification. DAG size of input: 146 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:27:35,655 WARN L286 SmtUtils]: Spent 13.16s on a formula simplification. DAG size of input: 142 DAG size of output: 14 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:28:08,564 WARN L286 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 138 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:28:46,370 WARN L286 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 134 DAG size of output: 14 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:29:26,985 WARN L286 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 130 DAG size of output: 18 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:30:08,343 WARN L286 SmtUtils]: Spent 9.04s on a formula simplification. DAG size of input: 126 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:30:49,935 WARN L286 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 122 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:32:14,571 WARN L286 SmtUtils]: Spent 6.07s on a formula simplification. DAG size of input: 114 DAG size of output: 14 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:33:03,260 WARN L286 SmtUtils]: Spent 8.93s on a formula simplification. DAG size of input: 110 DAG size of output: 18 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)