./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-acceleration/simple_1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E --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 0.3.0-dev-826ab2b [2024-11-14 04:44:17,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:44:17,336 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:44:17,349 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:44:17,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:44:17,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:44:17,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:44:17,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:44:17,382 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:44:17,382 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:44:17,382 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:44:17,382 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:44:17,382 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:44:17,382 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:44:17,383 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:44:17,383 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:44:17,383 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:44:17,383 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:44:17,383 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:44:17,383 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:44:17,384 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:44:17,384 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:44:17,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:44:17,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:44:17,385 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:44:17,385 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:44:17,385 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:44:17,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:44:17,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:44:17,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:44:17,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:44:17,386 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:44:17,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:44:17,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:44:17,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:44:17,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:44:17,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:44:17,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:44:17,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:44:17,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:44:17,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:44:17,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:44:17,387 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:44:17,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:44:17,387 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:44:17,388 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:44:17,388 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:44:17,388 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E 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 [2024-11-14 04:44:17,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:44:17,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:44:17,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:44:17,716 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:44:17,717 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:44:17,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/loop-acceleration/simple_1-1.c Unable to find full path for "g++" [2024-11-14 04:44:19,772 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:44:20,074 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:44:20,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/sv-benchmarks/c/loop-acceleration/simple_1-1.c [2024-11-14 04:44:20,083 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/data/426ff812c/9d9e52922c62424890a29d6171e0202f/FLAGafa59961f [2024-11-14 04:44:20,132 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/data/426ff812c/9d9e52922c62424890a29d6171e0202f [2024-11-14 04:44:20,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:44:20,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:44:20,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:44:20,141 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:44:20,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:44:20,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bba3ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20, skipping insertion in model container [2024-11-14 04:44:20,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,161 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:44:20,314 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_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/sv-benchmarks/c/loop-acceleration/simple_1-1.c[322,335] [2024-11-14 04:44:20,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:44:20,336 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:44:20,346 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_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/sv-benchmarks/c/loop-acceleration/simple_1-1.c[322,335] [2024-11-14 04:44:20,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:44:20,363 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:44:20,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20 WrapperNode [2024-11-14 04:44:20,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:44:20,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:44:20,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:44:20,367 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:44:20,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,399 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2024-11-14 04:44:20,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:44:20,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:44:20,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:44:20,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:44:20,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,411 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:44:20,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:44:20,421 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:44:20,421 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:44:20,422 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (1/1) ... [2024-11-14 04:44:20,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:44:20,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:20,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:44:20,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:44:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:44:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:44:20,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:44:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:44:20,561 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:44:20,563 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:44:20,682 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-14 04:44:20,682 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:44:20,725 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:44:20,725 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:44:20,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:44:20 BoogieIcfgContainer [2024-11-14 04:44:20,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:44:20,730 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:44:20,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:44:20,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:44:20,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:44:20" (1/3) ... [2024-11-14 04:44:20,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbdb224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:44:20, skipping insertion in model container [2024-11-14 04:44:20,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:44:20" (2/3) ... [2024-11-14 04:44:20,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbdb224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:44:20, skipping insertion in model container [2024-11-14 04:44:20,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:44:20" (3/3) ... [2024-11-14 04:44:20,738 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_1-1.c [2024-11-14 04:44:20,756 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:44:20,759 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG simple_1-1.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:44:20,827 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:44:20,843 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;@6acdb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:44:20,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:44:20,849 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) [2024-11-14 04:44:20,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:44:20,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:20,857 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:44:20,858 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:44:20,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:20,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1819719, now seen corresponding path program 1 times [2024-11-14 04:44:20,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:20,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992014837] [2024-11-14 04:44:20,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:20,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:21,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:21,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992014837] [2024-11-14 04:44:21,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992014837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:21,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:44:21,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:44:21,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729743778] [2024-11-14 04:44:21,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:21,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:44:21,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:21,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:44:21,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:44:21,156 INFO L87 Difference]: Start difference. First 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-14 04:44:21,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:21,191 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2024-11-14 04:44:21,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:44:21,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-11-14 04:44:21,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:21,200 INFO L225 Difference]: With dead ends: 13 [2024-11-14 04:44:21,200 INFO L226 Difference]: Without dead ends: 6 [2024-11-14 04:44:21,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:44:21,210 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:21,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:44:21,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2024-11-14 04:44:21,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2024-11-14 04:44:21,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2024-11-14 04:44:21,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2024-11-14 04:44:21,242 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2024-11-14 04:44:21,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:21,244 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2024-11-14 04:44:21,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-11-14 04:44:21,246 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2024-11-14 04:44:21,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:44:21,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:21,246 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:44:21,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:44:21,247 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:44:21,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:21,247 INFO L85 PathProgramCache]: Analyzing trace with hash 55741429, now seen corresponding path program 1 times [2024-11-14 04:44:21,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:21,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561226842] [2024-11-14 04:44:21,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:21,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:21,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561226842] [2024-11-14 04:44:21,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561226842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:44:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264039947] [2024-11-14 04:44:21,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:21,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:21,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:21,417 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:21,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:44:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:21,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:44:21,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:21,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:21,506 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:44:21,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:21,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264039947] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:44:21,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [337549149] [2024-11-14 04:44:21,590 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2024-11-14 04:44:21,590 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:44:21,594 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:44:21,599 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:44:21,599 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:44:21,851 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:44:21,961 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '69#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x~0#1_24| Int)) (and (= (mod |v_ULTIMATE.start_main_~x~0#1_24| 2) 0) (<= 268435455 (mod |v_ULTIMATE.start_main_~x~0#1_24| 4294967296)) (<= 0 |v_ULTIMATE.start_main_~x~0#1_24|))))' at error location [2024-11-14 04:44:21,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:44:21,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:44:21,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-14 04:44:21,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503320921] [2024-11-14 04:44:21,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:44:21,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:44:21,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:21,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:44:21,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-14 04:44:21,966 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2024-11-14 04:44:22,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:22,030 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2024-11-14 04:44:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:44:22,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) Word has length 5 [2024-11-14 04:44:22,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:22,032 INFO L225 Difference]: With dead ends: 12 [2024-11-14 04:44:22,032 INFO L226 Difference]: Without dead ends: 9 [2024-11-14 04:44:22,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:44:22,034 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:22,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:44:22,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-14 04:44:22,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-14 04:44:22,041 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) [2024-11-14 04:44:22,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 04:44:22,042 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-14 04:44:22,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:22,042 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 04:44:22,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2024-11-14 04:44:22,042 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 04:44:22,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:44:22,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:22,043 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2024-11-14 04:44:22,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:44:22,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:22,244 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:44:22,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2070364103, now seen corresponding path program 2 times [2024-11-14 04:44:22,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:22,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132508864] [2024-11-14 04:44:22,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:22,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:22,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:22,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132508864] [2024-11-14 04:44:22,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132508864] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:44:22,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902486849] [2024-11-14 04:44:22,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:44:22,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:22,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:22,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:22,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:44:22,561 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:44:22,561 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:44:22,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 04:44:22,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:22,600 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:22,600 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:44:22,744 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:22,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902486849] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:44:22,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1236249659] [2024-11-14 04:44:22,746 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2024-11-14 04:44:22,746 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:44:22,746 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:44:22,746 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:44:22,746 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:44:22,853 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:44:22,964 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '160#(and (exists ((|v_ULTIMATE.start_main_~x~0#1_37| Int)) (and (<= 0 |v_ULTIMATE.start_main_~x~0#1_37|) (= (mod |v_ULTIMATE.start_main_~x~0#1_37| 2) 0) (<= 268435455 (mod |v_ULTIMATE.start_main_~x~0#1_37| 4294967296)))) (<= 1 |#StackHeapBarrier|))' at error location [2024-11-14 04:44:22,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:44:22,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:44:22,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-14 04:44:22,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957361179] [2024-11-14 04:44:22,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:44:22,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:44:22,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:22,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:44:22,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-14 04:44:22,969 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:44:23,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:23,258 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-14 04:44:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:44:23,259 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-14 04:44:23,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:23,260 INFO L225 Difference]: With dead ends: 18 [2024-11-14 04:44:23,260 INFO L226 Difference]: Without dead ends: 15 [2024-11-14 04:44:23,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-14 04:44:23,262 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:23,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:44:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-14 04:44:23,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-14 04:44:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:44:23,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-14 04:44:23,272 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-14 04:44:23,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:23,273 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-14 04:44:23,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:44:23,274 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-14 04:44:23,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 04:44:23,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:23,275 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2024-11-14 04:44:23,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 04:44:23,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:23,479 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:44:23,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:23,479 INFO L85 PathProgramCache]: Analyzing trace with hash -437243641, now seen corresponding path program 3 times [2024-11-14 04:44:23,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:23,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561737306] [2024-11-14 04:44:23,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:23,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:23,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:23,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561737306] [2024-11-14 04:44:23,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561737306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:44:23,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71410935] [2024-11-14 04:44:23,820 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:44:23,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:23,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:23,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:23,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:44:23,877 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:44:23,877 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:44:23,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 04:44:23,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:23,939 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:23,939 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:44:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:24,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71410935] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:44:24,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1047385252] [2024-11-14 04:44:24,365 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2024-11-14 04:44:24,365 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:44:24,365 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:44:24,365 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:44:24,365 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:44:24,432 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:44:24,594 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '329#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x~0#1_62| Int)) (and (<= 0 |v_ULTIMATE.start_main_~x~0#1_62|) (= (mod |v_ULTIMATE.start_main_~x~0#1_62| 2) 0) (<= 268435455 (mod |v_ULTIMATE.start_main_~x~0#1_62| 4294967296)))))' at error location [2024-11-14 04:44:24,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:44:24,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:44:24,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2024-11-14 04:44:24,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668849838] [2024-11-14 04:44:24,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:44:24,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-14 04:44:24,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:24,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-14 04:44:24,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2024-11-14 04:44:24,597 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 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) [2024-11-14 04:44:29,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:29,134 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2024-11-14 04:44:29,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 04:44:29,135 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 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 14 [2024-11-14 04:44:29,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:29,136 INFO L225 Difference]: With dead ends: 30 [2024-11-14 04:44:29,136 INFO L226 Difference]: Without dead ends: 27 [2024-11-14 04:44:29,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=448, Invalid=958, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:44:29,137 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:29,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:44:29,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-14 04:44:29,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-14 04:44:29,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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) [2024-11-14 04:44:29,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2024-11-14 04:44:29,147 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2024-11-14 04:44:29,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:29,147 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2024-11-14 04:44:29,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 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) [2024-11-14 04:44:29,148 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2024-11-14 04:44:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 04:44:29,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:29,149 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1] [2024-11-14 04:44:29,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 04:44:29,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:29,352 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:44:29,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:29,353 INFO L85 PathProgramCache]: Analyzing trace with hash 439894919, now seen corresponding path program 4 times [2024-11-14 04:44:29,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:29,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285909326] [2024-11-14 04:44:29,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:29,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:30,079 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:30,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:30,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285909326] [2024-11-14 04:44:30,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285909326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:44:30,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060732062] [2024-11-14 04:44:30,080 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:44:30,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:30,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:30,082 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:30,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:44:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:30,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-14 04:44:30,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:30,239 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:30,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:44:31,497 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:31,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060732062] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:44:31,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1482782063] [2024-11-14 04:44:31,499 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2024-11-14 04:44:31,499 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:44:31,500 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:44:31,500 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:44:31,500 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:44:31,554 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:44:31,780 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '654#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x~0#1_111| Int)) (and (<= 0 |v_ULTIMATE.start_main_~x~0#1_111|) (<= 268435455 (mod |v_ULTIMATE.start_main_~x~0#1_111| 4294967296)) (= (mod |v_ULTIMATE.start_main_~x~0#1_111| 2) 0))))' at error location [2024-11-14 04:44:31,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:44:31,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:44:31,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2024-11-14 04:44:31,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467920160] [2024-11-14 04:44:31,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:44:31,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-14 04:44:31,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:31,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-14 04:44:31,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=678, Invalid=1974, Unknown=0, NotChecked=0, Total=2652 [2024-11-14 04:44:31,784 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 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) [2024-11-14 04:46:12,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:46:12,311 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions. [2024-11-14 04:46:12,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-14 04:46:12,312 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 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 26 [2024-11-14 04:46:12,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:46:12,312 INFO L225 Difference]: With dead ends: 54 [2024-11-14 04:46:12,313 INFO L226 Difference]: Without dead ends: 51 [2024-11-14 04:46:12,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 101.8s TimeCoverageRelationStatistics Valid=1753, Invalid=3646, Unknown=3, NotChecked=0, Total=5402 [2024-11-14 04:46:12,316 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:46:12,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:46:12,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-14 04:46:12,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-14 04:46:12,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:46:12,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2024-11-14 04:46:12,327 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 26 [2024-11-14 04:46:12,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:46:12,327 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2024-11-14 04:46:12,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 48 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) [2024-11-14 04:46:12,327 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2024-11-14 04:46:12,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 04:46:12,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:46:12,328 INFO L215 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1] [2024-11-14 04:46:12,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 04:46:12,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:46:12,533 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:46:12,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:46:12,534 INFO L85 PathProgramCache]: Analyzing trace with hash -196007801, now seen corresponding path program 5 times [2024-11-14 04:46:12,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:46:12,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433574031] [2024-11-14 04:46:12,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:12,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:46:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:46:14,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:46:14,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433574031] [2024-11-14 04:46:14,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433574031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:46:14,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193074329] [2024-11-14 04:46:14,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:46:14,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:46:14,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:46:14,617 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:46:14,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e6799a4-7b2c-4eeb-9f66-2bb5ae2828ee/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:46:14,758 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2024-11-14 04:46:14,758 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:46:14,760 WARN L253 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-14 04:46:14,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:46:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:46:14,905 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:46:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:46:19,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193074329] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:46:19,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1509040496] [2024-11-14 04:46:19,203 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2024-11-14 04:46:19,204 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:46:19,204 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:46:19,204 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:46:19,204 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:46:19,242 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:46:19,655 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1291#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~x~0#1_208| Int)) (and (<= 268435455 (mod |v_ULTIMATE.start_main_~x~0#1_208| 4294967296)) (= (mod |v_ULTIMATE.start_main_~x~0#1_208| 2) 0) (<= 0 |v_ULTIMATE.start_main_~x~0#1_208|))))' at error location [2024-11-14 04:46:19,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:46:19,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:46:19,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 96 [2024-11-14 04:46:19,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834702394] [2024-11-14 04:46:19,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:46:19,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2024-11-14 04:46:19,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:46:19,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2024-11-14 04:46:19,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2502, Invalid=7398, Unknown=0, NotChecked=0, Total=9900 [2024-11-14 04:46:19,661 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 97 states, 97 states have (on average 1.0309278350515463) internal successors, (100), 96 states have internal predecessors, (100), 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) [2024-11-14 04:46:45,229 WARN L286 SmtUtils]: Spent 24.05s on a formula simplification. DAG size of input: 190 DAG size of output: 26 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:47:05,899 WARN L286 SmtUtils]: Spent 18.20s on a formula simplification. DAG size of input: 186 DAG size of output: 18 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:47:29,094 WARN L286 SmtUtils]: Spent 18.57s 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) [2024-11-14 04:47:51,761 WARN L286 SmtUtils]: Spent 16.12s on a formula simplification. DAG size of input: 178 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:48:11,710 WARN L286 SmtUtils]: Spent 11.34s 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) [2024-11-14 04:48:42,820 WARN L286 SmtUtils]: Spent 19.82s 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) [2024-11-14 04:49:14,141 WARN L286 SmtUtils]: Spent 18.80s on a formula simplification. DAG size of input: 166 DAG size of output: 26 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:49:47,497 WARN L286 SmtUtils]: Spent 18.03s on a formula simplification. DAG size of input: 162 DAG size of output: 18 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:50:19,344 WARN L286 SmtUtils]: Spent 14.99s 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) [2024-11-14 04:50:46,163 WARN L286 SmtUtils]: Spent 7.95s on a formula simplification. DAG size of input: 154 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:51:16,797 WARN L286 SmtUtils]: Spent 9.16s on a formula simplification. DAG size of input: 150 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:51:49,929 WARN L286 SmtUtils]: Spent 9.79s on a formula simplification. DAG size of input: 146 DAG size of output: 14 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:52:25,255 WARN L286 SmtUtils]: Spent 10.40s on a formula simplification. DAG size of input: 142 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:52:59,164 WARN L286 SmtUtils]: Spent 7.17s 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) [2024-11-14 04:53:36,093 WARN L286 SmtUtils]: Spent 8.03s 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) [2024-11-14 04:54:15,415 WARN L286 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 130 DAG size of output: 14 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:54:59,705 WARN L286 SmtUtils]: Spent 11.65s on a formula simplification. DAG size of input: 126 DAG size of output: 14 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:56:19,045 WARN L286 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 118 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:57:03,118 WARN L286 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 114 DAG size of output: 10 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)