./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/sum04-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/sum04-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:32:48,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:32:48,644 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:32:48,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:32:48,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:32:48,694 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:32:48,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:32:48,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:32:48,700 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:32:48,703 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:32:48,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:32:48,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:32:48,703 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:32:48,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:32:48,704 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:32:48,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:32:48,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:32:48,704 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:32:48,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:32:48,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:32:48,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:32:48,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:32:48,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:32:48,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:32:48,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:32:48,705 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:32:48,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:32:48,705 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:32:48,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:32:48,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:32:48,707 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:32:48,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:32:48,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:32:48,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:32:48,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:32:48,710 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:32:48,710 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:32:48,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:32:48,711 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:32:48,711 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:32:48,711 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:32:48,711 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:32:48,711 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 [2024-11-13 13:32:49,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:32:49,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:32:49,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:32:49,184 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:32:49,185 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:32:49,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/loops/sum04-1.i Unable to find full path for "g++" [2024-11-13 13:32:51,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:32:51,993 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:32:51,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/sv-benchmarks/c/loops/sum04-1.i [2024-11-13 13:32:52,008 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/data/884a17943/1734e410c8364137899235ac8c4304ae/FLAG8eee99625 [2024-11-13 13:32:52,289 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/data/884a17943/1734e410c8364137899235ac8c4304ae [2024-11-13 13:32:52,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:32:52,295 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:32:52,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:32:52,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:32:52,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:32:52,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee46d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52, skipping insertion in model container [2024-11-13 13:32:52,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,326 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:32:52,526 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/sv-benchmarks/c/loops/sum04-1.i[808,821] [2024-11-13 13:32:52,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:32:52,553 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:32:52,572 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/sv-benchmarks/c/loops/sum04-1.i[808,821] [2024-11-13 13:32:52,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:32:52,594 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:32:52,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52 WrapperNode [2024-11-13 13:32:52,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:32:52,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:32:52,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:32:52,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:32:52,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,645 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2024-11-13 13:32:52,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:32:52,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:32:52,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:32:52,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:32:52,660 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,662 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,675 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:32:52,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,681 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:32:52,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:32:52,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:32:52,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:32:52,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (1/1) ... [2024-11-13 13:32:52,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:32:52,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:32:52,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:32:52,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:32:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:32:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:32:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:32:52,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:32:52,901 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:32:52,904 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:32:53,038 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-13 13:32:53,038 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:32:53,050 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:32:53,051 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:32:53,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:32:53 BoogieIcfgContainer [2024-11-13 13:32:53,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:32:53,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:32:53,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:32:53,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:32:53,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:32:52" (1/3) ... [2024-11-13 13:32:53,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a84cc85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:32:53, skipping insertion in model container [2024-11-13 13:32:53,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:52" (2/3) ... [2024-11-13 13:32:53,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a84cc85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:32:53, skipping insertion in model container [2024-11-13 13:32:53,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:32:53" (3/3) ... [2024-11-13 13:32:53,066 INFO L112 eAbstractionObserver]: Analyzing ICFG sum04-1.i [2024-11-13 13:32:53,088 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:32:53,091 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG sum04-1.i that has 1 procedures, 13 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:32:53,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:32:53,199 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=PETRI_NET, 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;@40f8cbfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:32:53,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:32:53,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:32:53,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 13:32:53,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:53,211 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 13:32:53,212 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:32:53,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:53,219 INFO L85 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2024-11-13 13:32:53,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:32:53,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961482780] [2024-11-13 13:32:53,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:53,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:32:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:53,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:53,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:32:53,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961482780] [2024-11-13 13:32:53,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961482780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:32:53,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:32:53,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:32:53,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303439533] [2024-11-13 13:32:53,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:32:53,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:32:53,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:32:53,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:32:53,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:32:53,489 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-13 13:32:53,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:32:53,504 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2024-11-13 13:32:53,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:32:53,507 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2024-11-13 13:32:53,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:32:53,516 INFO L225 Difference]: With dead ends: 21 [2024-11-13 13:32:53,516 INFO L226 Difference]: Without dead ends: 9 [2024-11-13 13:32:53,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:32:53,528 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:32:53,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:32:53,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-13 13:32:53,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-13 13:32:53,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:32:53,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2024-11-13 13:32:53,571 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2024-11-13 13:32:53,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:32:53,572 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-13 13:32:53,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-13 13:32:53,576 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-11-13 13:32:53,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 13:32:53,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:53,577 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 13:32:53,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:32:53,577 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:32:53,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:53,578 INFO L85 PathProgramCache]: Analyzing trace with hash 889610002, now seen corresponding path program 1 times [2024-11-13 13:32:53,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:32:53,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486672510] [2024-11-13 13:32:53,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:53,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:32:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:53,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:53,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:32:53,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486672510] [2024-11-13 13:32:53,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486672510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:32:53,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:32:53,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:32:53,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292076022] [2024-11-13 13:32:53,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:32:53,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:32:53,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:32:53,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:32:53,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:32:53,689 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-11-13 13:32:53,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:32:53,717 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2024-11-13 13:32:53,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:32:53,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 [2024-11-13 13:32:53,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:32:53,718 INFO L225 Difference]: With dead ends: 19 [2024-11-13 13:32:53,719 INFO L226 Difference]: Without dead ends: 12 [2024-11-13 13:32:53,719 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 [2024-11-13 13:32:53,720 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:32:53,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:32:53,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-13 13:32:53,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2024-11-13 13:32:53,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:32:53,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2024-11-13 13:32:53,725 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 6 [2024-11-13 13:32:53,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:32:53,725 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-11-13 13:32:53,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-11-13 13:32:53,726 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-11-13 13:32:53,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 13:32:53,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:53,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:32:53,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:32:53,727 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:32:53,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:53,728 INFO L85 PathProgramCache]: Analyzing trace with hash -332619814, now seen corresponding path program 1 times [2024-11-13 13:32:53,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:32:53,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686064214] [2024-11-13 13:32:53,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:53,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:32:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:53,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:53,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:32:53,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686064214] [2024-11-13 13:32:53,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686064214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:32:53,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787286199] [2024-11-13 13:32:53,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:53,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:32:53,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:32:53,826 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:32:53,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:32:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:53,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:32:53,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:32:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:54,005 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:32:54,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:54,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787286199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:32:54,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:32:54,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-13 13:32:54,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588109944] [2024-11-13 13:32:54,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:32:54,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:32:54,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:32:54,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:32:54,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:32:54,075 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2024-11-13 13:32:54,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:32:54,160 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2024-11-13 13:32:54,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:32:54,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) Word has length 9 [2024-11-13 13:32:54,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:32:54,162 INFO L225 Difference]: With dead ends: 26 [2024-11-13 13:32:54,162 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 13:32:54,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:32:54,163 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:32:54,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:32:54,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 13:32:54,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 13:32:54,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 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) [2024-11-13 13:32:54,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-13 13:32:54,171 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2024-11-13 13:32:54,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:32:54,175 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-13 13:32:54,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2024-11-13 13:32:54,175 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-13 13:32:54,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 13:32:54,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:54,176 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:32:54,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:32:54,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:32:54,378 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:32:54,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:54,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1967544752, now seen corresponding path program 1 times [2024-11-13 13:32:54,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:32:54,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701875174] [2024-11-13 13:32:54,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:54,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:32:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:54,630 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:54,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:32:54,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701875174] [2024-11-13 13:32:54,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701875174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:32:54,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097549509] [2024-11-13 13:32:54,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:54,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:32:54,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:32:54,640 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:32:54,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:32:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:54,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:32:54,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:32:54,831 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:54,832 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:32:54,994 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:54,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097549509] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:32:54,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:32:54,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-13 13:32:54,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140240729] [2024-11-13 13:32:54,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:32:54,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:32:54,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:32:54,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:32:54,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:32:55,000 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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) [2024-11-13 13:32:55,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:32:55,124 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2024-11-13 13:32:55,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:32:55,126 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 18 [2024-11-13 13:32:55,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:32:55,129 INFO L225 Difference]: With dead ends: 40 [2024-11-13 13:32:55,129 INFO L226 Difference]: Without dead ends: 31 [2024-11-13 13:32:55,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:32:55,131 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:32:55,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 26 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:32:55,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-13 13:32:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-13 13:32:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 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) [2024-11-13 13:32:55,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2024-11-13 13:32:55,149 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 18 [2024-11-13 13:32:55,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:32:55,149 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2024-11-13 13:32:55,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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) [2024-11-13 13:32:55,150 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2024-11-13 13:32:55,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-13 13:32:55,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:55,150 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 5, 3, 1, 1, 1, 1, 1, 1] [2024-11-13 13:32:55,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 13:32:55,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:32:55,352 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:32:55,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:55,352 INFO L85 PathProgramCache]: Analyzing trace with hash -233243184, now seen corresponding path program 2 times [2024-11-13 13:32:55,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:32:55,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326727694] [2024-11-13 13:32:55,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:55,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:32:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:32:55,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:32:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:32:55,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:32:55,456 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:32:55,457 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:32:55,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:32:55,462 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-13 13:32:55,488 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:32:55,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:32:55 BoogieIcfgContainer [2024-11-13 13:32:55,492 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:32:55,493 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:32:55,493 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:32:55,493 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:32:55,494 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:32:53" (3/4) ... [2024-11-13 13:32:55,495 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 13:32:55,534 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:32:55,534 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:32:55,536 INFO L158 Benchmark]: Toolchain (without parser) took 3241.18ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 67.6MB in the end (delta: 24.3MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2024-11-13 13:32:55,536 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:32:55,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.67ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 81.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:32:55,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.29ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:32:55,537 INFO L158 Benchmark]: Boogie Preprocessor took 48.79ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:32:55,537 INFO L158 Benchmark]: RCFGBuilder took 355.85ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 70.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:32:55,538 INFO L158 Benchmark]: TraceAbstraction took 2437.58ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 69.3MB in the end (delta: -4.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:32:55,538 INFO L158 Benchmark]: Witness Printer took 41.38ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 67.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:32:55,540 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.67ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 81.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.29ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.79ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 78.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 355.85ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 70.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2437.58ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 69.3MB in the end (delta: -4.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.38ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 67.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] int i, sn=0; [L24] i=1 VAL [i=1, sn=0] [L24] COND TRUE i<=8 VAL [i=1, sn=0] [L25] COND TRUE i<4 [L26] sn = sn + (2) VAL [i=1, sn=2] [L24] i++ VAL [i=2, sn=2] [L24] COND TRUE i<=8 VAL [i=2, sn=2] [L25] COND TRUE i<4 [L26] sn = sn + (2) VAL [i=2, sn=4] [L24] i++ VAL [i=3, sn=4] [L24] COND TRUE i<=8 VAL [i=3, sn=4] [L25] COND TRUE i<4 [L26] sn = sn + (2) VAL [i=3, sn=6] [L24] i++ VAL [i=4, sn=6] [L24] COND TRUE i<=8 VAL [i=4, sn=6] [L25] COND FALSE !(i<4) VAL [i=4, sn=6] [L24] i++ VAL [i=5, sn=6] [L24] COND TRUE i<=8 VAL [i=5, sn=6] [L25] COND FALSE !(i<4) VAL [i=5, sn=6] [L24] i++ VAL [i=6, sn=6] [L24] COND TRUE i<=8 VAL [i=6, sn=6] [L25] COND FALSE !(i<4) VAL [i=6, sn=6] [L24] i++ VAL [i=7, sn=6] [L24] COND TRUE i<=8 VAL [i=7, sn=6] [L25] COND FALSE !(i<4) VAL [i=7, sn=6] [L24] i++ VAL [i=8, sn=6] [L24] COND TRUE i<=8 VAL [i=8, sn=6] [L25] COND FALSE !(i<4) VAL [i=8, sn=6] [L24] i++ VAL [i=9, sn=6] [L24] COND FALSE !(i<=8) VAL [sn=6] [L28] CALL __VERIFIER_assert(sn==8*(2) || sn == 0) [L15] COND TRUE !(cond) [L16] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 33 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=4, InterpolantAutomatonStates: 21, 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 0/69 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-13 13:32:55,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5ab57f2-4bdd-4036-9e7d-131d85adc7cc/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE