./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/a.09_assume-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/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_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/a.09_assume-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 29282a3bf422a4239bd2757ad686eee31020f0cfb559a37401ead246e8f2c486 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:06:09,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:06:09,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 07:06:09,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:06:09,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:06:09,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:06:09,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:06:09,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:06:09,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:06:09,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:06:09,376 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:06:09,376 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:06:09,377 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:06:09,377 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:06:09,378 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:06:09,380 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:06:09,381 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:06:09,381 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:06:09,381 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:06:09,382 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:06:09,382 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:06:09,385 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:06:09,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:06:09,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:06:09,386 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:06:09,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:06:09,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:06:09,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:06:09,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:06:09,388 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:06:09,388 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:06:09,388 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:06:09,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:06:09,389 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:06:09,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:06:09,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:06:09,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:06:09,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:06:09,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:06:09,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:06:09,395 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:06:09,395 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:06:09,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:06:09,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:06:09,396 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:06:09,397 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:06:09,397 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_4445814a-cc84-4787-90f6-a12e62d4fea2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29282a3bf422a4239bd2757ad686eee31020f0cfb559a37401ead246e8f2c486 [2024-11-09 07:06:09,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:06:09,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:06:09,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:06:09,700 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:06:09,700 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:06:09,701 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/termination-memory-alloca/a.09_assume-alloca.i Unable to find full path for "g++" [2024-11-09 07:06:11,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:06:11,893 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:06:11,894 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/sv-benchmarks/c/termination-memory-alloca/a.09_assume-alloca.i [2024-11-09 07:06:11,906 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/data/484518d14/665ee2bacbab4e08b0a43bab1c194ea7/FLAG312bd3d42 [2024-11-09 07:06:12,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/data/484518d14/665ee2bacbab4e08b0a43bab1c194ea7 [2024-11-09 07:06:12,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:06:12,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:06:12,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:06:12,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:06:12,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:06:12,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b151c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12, skipping insertion in model container [2024-11-09 07:06:12,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:06:12,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:06:12,702 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:06:12,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:06:12,779 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:06:12,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12 WrapperNode [2024-11-09 07:06:12,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:06:12,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:06:12,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:06:12,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:06:12,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,801 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,833 INFO L138 Inliner]: procedures = 111, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 110 [2024-11-09 07:06:12,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:06:12,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:06:12,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:06:12,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:06:12,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,850 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:06:12,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:06:12,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:06:12,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:06:12,883 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (1/1) ... [2024-11-09 07:06:12,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:06:12,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:06:12,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:06:12,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:06:12,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:06:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:06:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:06:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:06:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:06:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:06:13,124 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:06:13,127 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:06:13,317 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-09 07:06:13,317 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:06:13,382 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:06:13,382 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:06:13,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:06:13 BoogieIcfgContainer [2024-11-09 07:06:13,383 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:06:13,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:06:13,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:06:13,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:06:13,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:06:12" (1/3) ... [2024-11-09 07:06:13,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50678c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:06:13, skipping insertion in model container [2024-11-09 07:06:13,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:12" (2/3) ... [2024-11-09 07:06:13,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50678c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:06:13, skipping insertion in model container [2024-11-09 07:06:13,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:06:13" (3/3) ... [2024-11-09 07:06:13,396 INFO L112 eAbstractionObserver]: Analyzing ICFG a.09_assume-alloca.i [2024-11-09 07:06:13,417 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:06:13,417 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 07:06:13,479 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:06:13,486 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;@375e39db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:06:13,487 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 07:06:13,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.75) internal successors, (21), 16 states have internal predecessors, (21), 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 07:06:13,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 07:06:13,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:13,499 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 07:06:13,500 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 07:06:13,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:13,506 INFO L85 PathProgramCache]: Analyzing trace with hash 71330674, now seen corresponding path program 1 times [2024-11-09 07:06:13,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:13,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843766694] [2024-11-09 07:06:13,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:13,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:14,250 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 07:06:14,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:14,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843766694] [2024-11-09 07:06:14,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843766694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:14,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:14,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:14,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960515026] [2024-11-09 07:06:14,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:14,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:06:14,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:14,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:06:14,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:06:14,295 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.75) internal successors, (21), 16 states have internal predecessors, (21), 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 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:14,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:14,409 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2024-11-09 07:06:14,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:06:14,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-09 07:06:14,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:14,419 INFO L225 Difference]: With dead ends: 20 [2024-11-09 07:06:14,419 INFO L226 Difference]: Without dead ends: 13 [2024-11-09 07:06:14,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:14,427 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:14,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 14 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:06:14,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-09 07:06:14,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-09 07:06:14,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 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 07:06:14,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-11-09 07:06:14,459 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2024-11-09 07:06:14,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:14,460 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-11-09 07:06:14,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:14,460 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-09 07:06:14,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 07:06:14,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:14,460 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 07:06:14,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:06:14,461 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 07:06:14,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:14,462 INFO L85 PathProgramCache]: Analyzing trace with hash -2083716354, now seen corresponding path program 1 times [2024-11-09 07:06:14,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:14,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665144228] [2024-11-09 07:06:14,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:14,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:14,560 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 07:06:14,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:14,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665144228] [2024-11-09 07:06:14,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665144228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:14,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:14,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:14,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403721606] [2024-11-09 07:06:14,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:14,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:06:14,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:14,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:06:14,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:06:14,564 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-11-09 07:06:14,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:14,620 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2024-11-09 07:06:14,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:06:14,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) Word has length 6 [2024-11-09 07:06:14,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:14,621 INFO L225 Difference]: With dead ends: 24 [2024-11-09 07:06:14,621 INFO L226 Difference]: Without dead ends: 23 [2024-11-09 07:06:14,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:14,623 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:14,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:06:14,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-09 07:06:14,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2024-11-09 07:06:14,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 16 states have internal predecessors, (19), 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 07:06:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-11-09 07:06:14,628 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 6 [2024-11-09 07:06:14,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:14,629 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-09 07:06:14,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-11-09 07:06:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-11-09 07:06:14,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 07:06:14,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:14,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:14,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:06:14,630 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 07:06:14,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:14,631 INFO L85 PathProgramCache]: Analyzing trace with hash -170508712, now seen corresponding path program 1 times [2024-11-09 07:06:14,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:14,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460964931] [2024-11-09 07:06:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:14,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:14,677 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 07:06:14,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:14,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460964931] [2024-11-09 07:06:14,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460964931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:14,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:14,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:14,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64471980] [2024-11-09 07:06:14,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:14,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:14,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:14,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:14,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:14,681 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 07:06:14,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:14,705 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2024-11-09 07:06:14,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:14,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 07:06:14,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:14,707 INFO L225 Difference]: With dead ends: 29 [2024-11-09 07:06:14,707 INFO L226 Difference]: Without dead ends: 17 [2024-11-09 07:06:14,708 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 07:06:14,709 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:14,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:06:14,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-09 07:06:14,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-09 07:06:14,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 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 07:06:14,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-11-09 07:06:14,718 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2024-11-09 07:06:14,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:14,718 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-11-09 07:06:14,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 07:06:14,719 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-11-09 07:06:14,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 07:06:14,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:14,719 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:14,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:06:14,720 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 07:06:14,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:14,724 INFO L85 PathProgramCache]: Analyzing trace with hash -831517156, now seen corresponding path program 1 times [2024-11-09 07:06:14,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:14,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640465555] [2024-11-09 07:06:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:14,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:14,993 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 07:06:14,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:14,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640465555] [2024-11-09 07:06:14,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640465555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:14,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:14,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:14,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584551054] [2024-11-09 07:06:14,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:14,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:06:14,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:14,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:06:14,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:06:14,999 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:15,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:15,083 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2024-11-09 07:06:15,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:06:15,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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) Word has length 9 [2024-11-09 07:06:15,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:15,085 INFO L225 Difference]: With dead ends: 23 [2024-11-09 07:06:15,085 INFO L226 Difference]: Without dead ends: 22 [2024-11-09 07:06:15,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:15,087 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:15,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 17 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:06:15,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-09 07:06:15,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2024-11-09 07:06:15,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 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 07:06:15,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2024-11-09 07:06:15,096 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 9 [2024-11-09 07:06:15,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:15,097 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2024-11-09 07:06:15,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:15,098 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2024-11-09 07:06:15,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 07:06:15,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:15,099 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:15,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:06:15,100 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 07:06:15,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:15,102 INFO L85 PathProgramCache]: Analyzing trace with hash -7227995, now seen corresponding path program 1 times [2024-11-09 07:06:15,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:15,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904162445] [2024-11-09 07:06:15,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:15,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:15,411 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 07:06:15,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:15,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904162445] [2024-11-09 07:06:15,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904162445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:15,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:15,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:06:15,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487713323] [2024-11-09 07:06:15,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:15,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:06:15,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:15,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:06:15,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:06:15,416 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 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 07:06:15,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:15,511 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2024-11-09 07:06:15,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:06:15,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 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 10 [2024-11-09 07:06:15,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:15,512 INFO L225 Difference]: With dead ends: 20 [2024-11-09 07:06:15,512 INFO L226 Difference]: Without dead ends: 19 [2024-11-09 07:06:15,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:06:15,516 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:15,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:06:15,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-09 07:06:15,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-09 07:06:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 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 07:06:15,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-11-09 07:06:15,523 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2024-11-09 07:06:15,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:15,524 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2024-11-09 07:06:15,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 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 07:06:15,527 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-11-09 07:06:15,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 07:06:15,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:15,528 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:15,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:06:15,528 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 07:06:15,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:15,529 INFO L85 PathProgramCache]: Analyzing trace with hash -824727222, now seen corresponding path program 1 times [2024-11-09 07:06:15,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:15,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903080141] [2024-11-09 07:06:15,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:15,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:15,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:06:15,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:15,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903080141] [2024-11-09 07:06:15,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903080141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:15,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437120940] [2024-11-09 07:06:15,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:15,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:15,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:06:15,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:06:15,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:06:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:15,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 07:06:15,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:16,196 INFO L349 Elim1Store]: treesize reduction 141, result has 31.2 percent of original size [2024-11-09 07:06:16,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 196 [2024-11-09 07:06:16,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2024-11-09 07:06:16,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2024-11-09 07:06:16,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2024-11-09 07:06:16,538 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:06:16,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2024-11-09 07:06:17,051 INFO L349 Elim1Store]: treesize reduction 56, result has 35.6 percent of original size [2024-11-09 07:06:17,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 244 treesize of output 240 [2024-11-09 07:06:17,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-09 07:06:18,138 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:06:18,141 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:06:18,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 23 [2024-11-09 07:06:18,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-09 07:06:18,280 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 07:06:18,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 15 [2024-11-09 07:06:18,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-09 07:06:21,664 INFO L349 Elim1Store]: treesize reduction 165, result has 34.3 percent of original size [2024-11-09 07:06:21,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 1543 treesize of output 1311 [2024-11-09 07:06:21,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 219 [2024-11-09 07:06:21,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2024-11-09 07:06:21,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-09 07:06:21,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 07:06:21,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:21,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 07:06:22,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437120940] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:06:22,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [463213704] [2024-11-09 07:06:22,281 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 07:06:22,281 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:06:22,285 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:06:22,290 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:06:22,291 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:06:22,973 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:06:31,195 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '367#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) (= |ULTIMATE.start_test_fun_~x_ref~0#1.offset| 0) (= |ULTIMATE.start_test_fun_~z_ref~0#1.offset| 0) (= |ULTIMATE.start_test_fun_~y_ref~0#1.offset| 0) (<= 2 |ULTIMATE.start_test_fun_#t~malloc4#1.base|) (<= 2 |ULTIMATE.start_test_fun_~y_ref~0#1.base|) (<= 2 |ULTIMATE.start_test_fun_~z_ref~0#1.base|) (<= 2 |ULTIMATE.start_test_fun_#t~malloc3#1.base|) (<= 2 |ULTIMATE.start_test_fun_#t~malloc2#1.base|))' at error location [2024-11-09 07:06:31,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:06:31,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:06:31,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 4] total 11 [2024-11-09 07:06:31,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348246775] [2024-11-09 07:06:31,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:06:31,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:06:31,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:31,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:06:31,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=314, Unknown=12, NotChecked=0, Total=420 [2024-11-09 07:06:31,199 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 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 07:06:31,727 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|))) (let ((.cse19 (= |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| |c_ULTIMATE.start_test_fun_~z_ref~0#1.base|)) (.cse3 (select .cse0 0))) (and (<= 1 (select .cse0 |c_ULTIMATE.start_test_fun_~y_ref~0#1.offset|)) (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~z_ref~0#1.base|))) (let ((.cse2 (select .cse4 0))) (let ((.cse8 (store .cse0 0 .cse2))) (let ((.cse1 (exists ((v_DerPreprocessor_2 (Array Int Int))) (= .cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_2) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|))))) (or (and .cse1 (= .cse2 .cse3) (exists ((v_DerPreprocessor_17 (Array Int Int))) (= .cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)))) (exists ((|ULTIMATE.start_test_fun_~x_ref~0#1.base| Int) (v_DerPreprocessor_7 (Array Int Int)) (v_DerPreprocessor_8 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_4 (Array Int Int))) (let ((.cse6 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_7) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_8) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4)) (.cse5 (select |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (.cse7 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_prenex_3) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_prenex_4) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8))) (and (= .cse0 (store .cse5 0 .cse2)) (= (select .cse6 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) .cse5) (not (= |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (= .cse0 (select .cse6 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (= (select .cse7 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) .cse5) (= .cse0 (select .cse7 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (not (= |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|))))) (and (exists ((v_DerPreprocessor_21 (Array Int Int)) (v_DerPreprocessor_22 (Array Int Int))) (and (= .cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_21) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| v_DerPreprocessor_22) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (= (select v_DerPreprocessor_22 0) .cse2))) (exists ((v_DerPreprocessor_5 (Array Int Int))) (= .cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_5) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)))) (and (exists ((v_DerPreprocessor_11 (Array Int Int))) (= .cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_11) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|))) .cse1) (exists ((|ULTIMATE.start_test_fun_~x_ref~0#1.base| Int) (v_DerPreprocessor_10 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int))) (let ((.cse13 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_10) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_11) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4))) (let ((.cse10 (select |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (.cse9 (select .cse13 |ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (and (= v_DerPreprocessor_10 .cse9) (not (= |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (= .cse0 .cse10) (exists ((v_prenex_3 (Array Int Int)) (v_prenex_4 (Array Int Int))) (let ((.cse12 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_prenex_3) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_prenex_4) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8))) (let ((.cse11 (select .cse12 |ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (and (= .cse11 v_prenex_3) (= .cse11 .cse10) (= .cse0 (select .cse12 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)))))) (= .cse10 .cse9) (= .cse0 (select .cse13 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)))))) (exists ((|ULTIMATE.start_test_fun_~x_ref~0#1.base| Int) (v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int))) (let ((.cse15 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_16) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4))) (let ((.cse14 (select |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (.cse16 (select .cse15 |ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (and (= .cse0 (store .cse14 0 .cse2)) (= .cse0 (select .cse15 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (not (= |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (= .cse14 .cse16) (= .cse0 .cse14) (exists ((v_prenex_3 (Array Int Int)) (v_prenex_4 (Array Int Int))) (let ((.cse18 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_prenex_3) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_prenex_4) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8))) (let ((.cse17 (select .cse18 |ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (and (= .cse17 v_prenex_3) (= .cse17 .cse14) (= .cse0 (select .cse18 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)))))) (= v_DerPreprocessor_16 .cse16))))) .cse19 (exists ((|ULTIMATE.start_test_fun_~x_ref~0#1.base| Int) (v_prenex_3 (Array Int Int)) (v_prenex_4 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (let ((.cse20 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_13) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_14) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4)) (.cse21 (select |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (.cse22 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_prenex_3) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_prenex_4) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8))) (and (= .cse0 (select .cse20 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (not (= |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (= (select .cse20 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) .cse21) (= (select .cse22 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) .cse21) (= .cse0 (select .cse22 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (not (= |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)))))))))) (= |c_ULTIMATE.start_test_fun_~y_ref~0#1.offset| 0) (not .cse19) (<= 1 .cse3) (= |c_ULTIMATE.start_test_fun_~z_ref~0#1.offset| 0)))) is different from true [2024-11-09 07:06:32,237 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (.cse4 (select |c_#memory_int| |c_ULTIMATE.start_test_fun_~z_ref~0#1.base|))) (let ((.cse3 (select .cse4 0)) (.cse19 (= |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| |c_ULTIMATE.start_test_fun_~z_ref~0#1.base|)) (.cse1 (select .cse0 0))) (and (<= 1 (select .cse0 |c_ULTIMATE.start_test_fun_~y_ref~0#1.offset|)) (<= .cse1 |c_ULTIMATE.start_test_fun_#t~mem15#1|) (let ((.cse8 (store .cse0 0 .cse3))) (let ((.cse2 (exists ((v_DerPreprocessor_2 (Array Int Int))) (= .cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_2) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|))))) (or (and .cse2 (= .cse3 .cse1) (exists ((v_DerPreprocessor_17 (Array Int Int))) (= .cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)))) (exists ((|ULTIMATE.start_test_fun_~x_ref~0#1.base| Int) (v_DerPreprocessor_7 (Array Int Int)) (v_DerPreprocessor_8 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_4 (Array Int Int))) (let ((.cse6 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_7) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_8) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4)) (.cse5 (select |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (.cse7 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_prenex_3) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_prenex_4) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8))) (and (= .cse0 (store .cse5 0 .cse3)) (= (select .cse6 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) .cse5) (not (= |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (= .cse0 (select .cse6 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (= (select .cse7 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) .cse5) (= .cse0 (select .cse7 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (not (= |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|))))) (and (exists ((v_DerPreprocessor_21 (Array Int Int)) (v_DerPreprocessor_22 (Array Int Int))) (and (= .cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_21) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| v_DerPreprocessor_22) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (= (select v_DerPreprocessor_22 0) .cse3))) (exists ((v_DerPreprocessor_5 (Array Int Int))) (= .cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_5) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)))) (and (exists ((v_DerPreprocessor_11 (Array Int Int))) (= .cse0 (select (store (store |c_#memory_int| |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_11) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|))) .cse2) (exists ((|ULTIMATE.start_test_fun_~x_ref~0#1.base| Int) (v_DerPreprocessor_10 (Array Int Int)) (v_DerPreprocessor_11 (Array Int Int))) (let ((.cse13 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_10) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_11) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4))) (let ((.cse10 (select |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (.cse9 (select .cse13 |ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (and (= v_DerPreprocessor_10 .cse9) (not (= |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (= .cse0 .cse10) (exists ((v_prenex_3 (Array Int Int)) (v_prenex_4 (Array Int Int))) (let ((.cse12 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_prenex_3) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_prenex_4) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8))) (let ((.cse11 (select .cse12 |ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (and (= .cse11 v_prenex_3) (= .cse11 .cse10) (= .cse0 (select .cse12 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)))))) (= .cse10 .cse9) (= .cse0 (select .cse13 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)))))) (exists ((|ULTIMATE.start_test_fun_~x_ref~0#1.base| Int) (v_DerPreprocessor_16 (Array Int Int)) (v_DerPreprocessor_17 (Array Int Int))) (let ((.cse15 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_16) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_17) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4))) (let ((.cse14 (select |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (.cse16 (select .cse15 |ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (and (= .cse0 (store .cse14 0 .cse3)) (= .cse0 (select .cse15 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (not (= |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (= .cse14 .cse16) (= .cse0 .cse14) (exists ((v_prenex_3 (Array Int Int)) (v_prenex_4 (Array Int Int))) (let ((.cse18 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_prenex_3) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_prenex_4) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8))) (let ((.cse17 (select .cse18 |ULTIMATE.start_test_fun_~x_ref~0#1.base|))) (and (= .cse17 v_prenex_3) (= .cse17 .cse14) (= .cse0 (select .cse18 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)))))) (= v_DerPreprocessor_16 .cse16))))) .cse19 (exists ((|ULTIMATE.start_test_fun_~x_ref~0#1.base| Int) (v_prenex_3 (Array Int Int)) (v_prenex_4 (Array Int Int)) (v_DerPreprocessor_13 (Array Int Int)) (v_DerPreprocessor_14 (Array Int Int))) (let ((.cse20 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_DerPreprocessor_13) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_DerPreprocessor_14) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse4)) (.cse21 (select |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (.cse22 (store (store (store |c_#memory_int| |ULTIMATE.start_test_fun_~x_ref~0#1.base| v_prenex_3) |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| v_prenex_4) |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| .cse8))) (and (= .cse0 (select .cse20 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (not (= |c_ULTIMATE.start_test_fun_~z_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)) (= (select .cse20 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) .cse21) (= (select .cse22 |ULTIMATE.start_test_fun_~x_ref~0#1.base|) .cse21) (= .cse0 (select .cse22 |c_ULTIMATE.start_test_fun_~y_ref~0#1.base|)) (not (= |c_ULTIMATE.start_test_fun_~y_ref~0#1.base| |ULTIMATE.start_test_fun_~x_ref~0#1.base|)))))))) (= |c_ULTIMATE.start_test_fun_~y_ref~0#1.offset| 0) (<= .cse3 |c_ULTIMATE.start_test_fun_#t~mem14#1|) (not .cse19) (<= 1 .cse1) (= |c_ULTIMATE.start_test_fun_~z_ref~0#1.offset| 0)))) is different from true [2024-11-09 07:06:32,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:32,541 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2024-11-09 07:06:32,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:06:32,541 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 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 [2024-11-09 07:06:32,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:32,542 INFO L225 Difference]: With dead ends: 20 [2024-11-09 07:06:32,542 INFO L226 Difference]: Without dead ends: 19 [2024-11-09 07:06:32,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=137, Invalid=455, Unknown=16, NotChecked=94, Total=702 [2024-11-09 07:06:32,544 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:32,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 3 Unknown, 51 Unchecked, 0.3s Time] [2024-11-09 07:06:32,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-09 07:06:32,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-11-09 07:06:32,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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 07:06:32,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2024-11-09 07:06:32,550 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2024-11-09 07:06:32,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:32,550 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2024-11-09 07:06:32,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 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 07:06:32,551 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2024-11-09 07:06:32,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 07:06:32,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:32,551 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 07:06:32,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:06:32,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:32,752 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 07:06:32,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:32,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2059285584, now seen corresponding path program 1 times [2024-11-09 07:06:32,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:32,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92131883] [2024-11-09 07:06:32,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:32,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:33,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:33,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92131883] [2024-11-09 07:06:33,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92131883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:33,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424196293] [2024-11-09 07:06:33,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:33,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:33,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:06:33,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:06:33,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:06:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:33,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:06:33,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:33,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 07:06:33,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:06:33,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 27 [2024-11-09 07:06:33,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:33,740 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:06:33,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424196293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:33,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:06:33,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2024-11-09 07:06:33,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641025600] [2024-11-09 07:06:33,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:33,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:33,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:33,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:33,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:06:33,742 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 07:06:33,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:33,852 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2024-11-09 07:06:33,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:06:33,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2024-11-09 07:06:33,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:33,854 INFO L225 Difference]: With dead ends: 18 [2024-11-09 07:06:33,854 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 07:06:33,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-09 07:06:33,855 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:33,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 12 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:06:33,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 07:06:33,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 07:06:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:33,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 07:06:33,857 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2024-11-09 07:06:33,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:33,857 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 07:06:33,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 07:06:33,857 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 07:06:33,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 07:06:33,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-09 07:06:33,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-09 07:06:33,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-09 07:06:33,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-09 07:06:33,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 07:06:34,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 07:06:34,065 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:34,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 07:06:34,221 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:06:34,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:06:34 BoogieIcfgContainer [2024-11-09 07:06:34,234 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:06:34,235 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:06:34,235 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:06:34,235 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:06:34,235 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:06:13" (3/4) ... [2024-11-09 07:06:34,238 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 07:06:34,248 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-09 07:06:34,248 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 07:06:34,249 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 07:06:34,249 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 07:06:34,333 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:06:34,334 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 07:06:34,334 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:06:34,334 INFO L158 Benchmark]: Toolchain (without parser) took 22089.77ms. Allocated memory was 169.9MB in the beginning and 337.6MB in the end (delta: 167.8MB). Free memory was 132.5MB in the beginning and 113.5MB in the end (delta: 19.0MB). Peak memory consumption was 188.0MB. Max. memory is 16.1GB. [2024-11-09 07:06:34,335 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 169.9MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:06:34,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.83ms. Allocated memory is still 169.9MB. Free memory was 132.5MB in the beginning and 114.2MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 07:06:34,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.67ms. Allocated memory is still 169.9MB. Free memory was 113.6MB in the beginning and 112.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:06:34,335 INFO L158 Benchmark]: Boogie Preprocessor took 42.14ms. Allocated memory is still 169.9MB. Free memory was 112.1MB in the beginning and 110.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:06:34,336 INFO L158 Benchmark]: RCFGBuilder took 505.29ms. Allocated memory is still 169.9MB. Free memory was 110.6MB in the beginning and 95.1MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 07:06:34,336 INFO L158 Benchmark]: TraceAbstraction took 20847.37ms. Allocated memory was 169.9MB in the beginning and 337.6MB in the end (delta: 167.8MB). Free memory was 94.4MB in the beginning and 118.7MB in the end (delta: -24.2MB). Peak memory consumption was 146.1MB. Max. memory is 16.1GB. [2024-11-09 07:06:34,336 INFO L158 Benchmark]: Witness Printer took 99.18ms. Allocated memory is still 337.6MB. Free memory was 118.7MB in the beginning and 113.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 07:06:34,338 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 169.9MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.83ms. Allocated memory is still 169.9MB. Free memory was 132.5MB in the beginning and 114.2MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.67ms. Allocated memory is still 169.9MB. Free memory was 113.6MB in the beginning and 112.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.14ms. Allocated memory is still 169.9MB. Free memory was 112.1MB in the beginning and 110.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 505.29ms. Allocated memory is still 169.9MB. Free memory was 110.6MB in the beginning and 95.1MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 20847.37ms. Allocated memory was 169.9MB in the beginning and 337.6MB in the end (delta: 167.8MB). Free memory was 94.4MB in the beginning and 118.7MB in the end (delta: -24.2MB). Peak memory consumption was 146.1MB. Max. memory is 16.1GB. * Witness Printer took 99.18ms. Allocated memory is still 337.6MB. Free memory was 118.7MB in the beginning and 113.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 558]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 20.6s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 51 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 236 IncrementalHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 34 mSDtfsCounter, 236 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=4, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 103 ConstructedInterpolants, 11 QuantifiedInterpolants, 6786 SizeOfPredicates, 11 NumberOfNonLiveVariables, 212 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 12/26 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 07:06:34,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4445814a-cc84-4787-90f6-a12e62d4fea2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE