./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound100.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 5bba06987e8c2f8236800dde4bec4c9d50f427f841de99efa853660259681b37 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:19:56,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:19:56,784 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:19:56,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:19:56,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:19:56,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:19:56,831 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:19:56,831 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:19:56,832 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:19:56,833 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:19:56,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:19:56,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:19:56,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:19:56,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:19:56,839 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:19:56,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:19:56,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:19:56,840 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:19:56,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:19:56,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:19:56,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:19:56,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:19:56,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:19:56,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:19:56,843 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:19:56,844 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:19:56,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:19:56,844 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:19:56,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:19:56,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:19:56,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:19:56,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:19:56,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:19:56,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:19:56,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:19:56,846 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:19:56,846 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:19:56,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:19:56,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:19:56,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:19:56,847 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:19:56,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:19:56,847 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bba06987e8c2f8236800dde4bec4c9d50f427f841de99efa853660259681b37 [2024-11-08 14:19:57,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:19:57,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:19:57,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:19:57,187 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:19:57,188 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:19:57,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound100.c [2024-11-08 14:19:58,588 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:19:58,766 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:19:58,767 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound100.c [2024-11-08 14:19:58,774 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b2f4edfd/a76560f87c1b4a8d90a31dcc79713e69/FLAGa5d710ef9 [2024-11-08 14:19:59,158 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b2f4edfd/a76560f87c1b4a8d90a31dcc79713e69 [2024-11-08 14:19:59,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:19:59,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:19:59,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:19:59,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:19:59,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:19:59,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2174101d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59, skipping insertion in model container [2024-11-08 14:19:59,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,192 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:19:59,350 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound100.c[525,538] [2024-11-08 14:19:59,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:19:59,389 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:19:59,399 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound100.c[525,538] [2024-11-08 14:19:59,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:19:59,431 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:19:59,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59 WrapperNode [2024-11-08 14:19:59,431 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:19:59,432 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:19:59,432 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:19:59,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:19:59,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,450 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,473 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-11-08 14:19:59,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:19:59,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:19:59,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:19:59,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:19:59,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,509 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]. [2024-11-08 14:19:59,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,529 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:19:59,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:19:59,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:19:59,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:19:59,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (1/1) ... [2024-11-08 14:19:59,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:19:59,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:19:59,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 14:19:59,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 14:19:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:19:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 14:19:59,622 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 14:19:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:19:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:19:59,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:19:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 14:19:59,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 14:19:59,705 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:19:59,707 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:19:59,931 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-08 14:19:59,931 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:19:59,944 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:19:59,944 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 14:19:59,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:19:59 BoogieIcfgContainer [2024-11-08 14:19:59,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:19:59,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:19:59,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:19:59,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:19:59,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:19:59" (1/3) ... [2024-11-08 14:19:59,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b6a712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:19:59, skipping insertion in model container [2024-11-08 14:19:59,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:19:59" (2/3) ... [2024-11-08 14:19:59,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b6a712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:19:59, skipping insertion in model container [2024-11-08 14:19:59,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:19:59" (3/3) ... [2024-11-08 14:19:59,952 INFO L112 eAbstractionObserver]: Analyzing ICFG dijkstra-u_valuebound100.c [2024-11-08 14:19:59,968 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:19:59,968 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:20:00,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:20:00,047 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;@14be3a67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:20:00,047 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:20:00,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 14:20:00,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 14:20:00,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:20:00,061 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:20:00,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:20:00,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:20:00,067 INFO L85 PathProgramCache]: Analyzing trace with hash -645822239, now seen corresponding path program 1 times [2024-11-08 14:20:00,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:20:00,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851628796] [2024-11-08 14:20:00,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:20:00,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:20:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:00,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:20:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:00,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:20:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:20:00,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:20:00,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851628796] [2024-11-08 14:20:00,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851628796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:20:00,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:20:00,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 14:20:00,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953453342] [2024-11-08 14:20:00,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:20:00,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 14:20:00,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:20:00,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 14:20:00,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 14:20:00,276 INFO L87 Difference]: Start difference. First operand has 33 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 14:20:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:20:00,295 INFO L93 Difference]: Finished difference Result 63 states and 107 transitions. [2024-11-08 14:20:00,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 14:20:00,296 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-11-08 14:20:00,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:20:00,302 INFO L225 Difference]: With dead ends: 63 [2024-11-08 14:20:00,303 INFO L226 Difference]: Without dead ends: 29 [2024-11-08 14:20:00,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 14:20:00,308 INFO L432 NwaCegarLoop]: 44 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, 44 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 [2024-11-08 14:20:00,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:20:00,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-08 14:20:00,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-08 14:20:00,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 16 states have internal predecessors, (19), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 14:20:00,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2024-11-08 14:20:00,349 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 19 [2024-11-08 14:20:00,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:20:00,349 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2024-11-08 14:20:00,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 14:20:00,351 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2024-11-08 14:20:00,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 14:20:00,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:20:00,353 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:20:00,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 14:20:00,354 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:20:00,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:20:00,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1757085840, now seen corresponding path program 1 times [2024-11-08 14:20:00,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:20:00,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677247586] [2024-11-08 14:20:00,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:20:00,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:20:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:00,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:20:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:00,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:20:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:20:00,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:20:00,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677247586] [2024-11-08 14:20:00,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677247586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:20:00,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:20:00,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:20:00,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607926225] [2024-11-08 14:20:00,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:20:00,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:20:00,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:20:00,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:20:00,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:20:00,857 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 14:20:04,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:20:09,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:20:09,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:20:09,072 INFO L93 Difference]: Finished difference Result 61 states and 89 transitions. [2024-11-08 14:20:09,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 14:20:09,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-08 14:20:09,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:20:09,086 INFO L225 Difference]: With dead ends: 61 [2024-11-08 14:20:09,086 INFO L226 Difference]: Without dead ends: 43 [2024-11-08 14:20:09,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:20:09,088 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 5 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:20:09,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 166 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 48 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2024-11-08 14:20:09,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-08 14:20:09,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-08 14:20:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 23 states have internal predecessors, (27), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 14:20:09,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 60 transitions. [2024-11-08 14:20:09,110 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 60 transitions. Word has length 20 [2024-11-08 14:20:09,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:20:09,111 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 60 transitions. [2024-11-08 14:20:09,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 14:20:09,111 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2024-11-08 14:20:09,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-08 14:20:09,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:20:09,113 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:20:09,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 14:20:09,114 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:20:09,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:20:09,114 INFO L85 PathProgramCache]: Analyzing trace with hash -332038773, now seen corresponding path program 1 times [2024-11-08 14:20:09,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:20:09,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642136385] [2024-11-08 14:20:09,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:20:09,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:20:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:09,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:20:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:09,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:20:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:09,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:20:09,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:20:09,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642136385] [2024-11-08 14:20:09,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642136385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:20:09,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268504757] [2024-11-08 14:20:09,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:20:09,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:20:09,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:20:09,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:20:09,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 14:20:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:09,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 14:20:09,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:20:09,767 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:20:09,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:20:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:20:09,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268504757] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 14:20:09,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 14:20:09,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-08 14:20:09,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406556533] [2024-11-08 14:20:09,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 14:20:09,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 14:20:09,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:20:09,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 14:20:09,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:20:09,970 INFO L87 Difference]: Start difference. First operand 43 states and 60 transitions. Second operand has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 13 states have internal predecessors, (28), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 14:20:14,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:20:19,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-08 14:20:19,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:20:19,892 INFO L93 Difference]: Finished difference Result 112 states and 178 transitions. [2024-11-08 14:20:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 14:20:19,894 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 13 states have internal predecessors, (28), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-08 14:20:19,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:20:19,896 INFO L225 Difference]: With dead ends: 112 [2024-11-08 14:20:19,898 INFO L226 Difference]: Without dead ends: 94 [2024-11-08 14:20:19,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-08 14:20:19,900 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 34 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 140 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-08 14:20:19,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 237 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 184 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2024-11-08 14:20:19,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-08 14:20:19,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 62. [2024-11-08 14:20:19,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 32 states have (on average 1.21875) internal successors, (39), 35 states have internal predecessors, (39), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-08 14:20:19,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 88 transitions. [2024-11-08 14:20:19,928 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 88 transitions. Word has length 22 [2024-11-08 14:20:19,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:20:19,929 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 88 transitions. [2024-11-08 14:20:19,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8666666666666667) internal successors, (28), 13 states have internal predecessors, (28), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 14:20:19,930 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 88 transitions. [2024-11-08 14:20:19,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 14:20:19,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:20:19,931 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:20:19,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 14:20:20,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:20:20,136 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:20:20,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:20:20,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1041809680, now seen corresponding path program 1 times [2024-11-08 14:20:20,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:20:20,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795094050] [2024-11-08 14:20:20,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:20:20,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:20:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 14:20:20,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [336110561] [2024-11-08 14:20:20,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:20:20,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:20:20,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:20:20,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:20:20,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 14:20:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:20,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:20:20,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:20:20,288 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 14:20:20,288 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:20:20,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:20:20,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795094050] [2024-11-08 14:20:20,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 14:20:20,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336110561] [2024-11-08 14:20:20,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336110561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:20:20,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:20:20,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 14:20:20,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994421045] [2024-11-08 14:20:20,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:20:20,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:20:20,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:20:20,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:20:20,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 14:20:20,294 INFO L87 Difference]: Start difference. First operand 62 states and 88 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 14:20:20,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:20:20,496 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2024-11-08 14:20:20,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:20:20,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2024-11-08 14:20:20,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:20:20,499 INFO L225 Difference]: With dead ends: 87 [2024-11-08 14:20:20,500 INFO L226 Difference]: Without dead ends: 84 [2024-11-08 14:20:20,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:20:20,501 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 5 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:20:20,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 130 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 14:20:20,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-08 14:20:20,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-08 14:20:20,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 40 states have (on average 1.2) internal successors, (48), 42 states have internal predecessors, (48), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-08 14:20:20,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2024-11-08 14:20:20,530 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 30 [2024-11-08 14:20:20,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:20:20,533 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2024-11-08 14:20:20,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 14:20:20,533 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2024-11-08 14:20:20,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 14:20:20,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:20:20,534 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:20:20,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 14:20:20,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-08 14:20:20,735 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:20:20,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:20:20,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1015454531, now seen corresponding path program 1 times [2024-11-08 14:20:20,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:20:20,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122391004] [2024-11-08 14:20:20,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:20:20,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:20:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 14:20:20,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [142290164] [2024-11-08 14:20:20,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:20:20,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:20:20,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:20:20,754 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:20:20,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 14:20:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:20:20,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 14:20:20,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:20:20,960 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:20:20,961 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:20:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:20:23,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:20:23,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122391004] [2024-11-08 14:20:23,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 14:20:23,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142290164] [2024-11-08 14:20:23,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142290164] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 14:20:23,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 14:20:23,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-11-08 14:20:23,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926772605] [2024-11-08 14:20:23,457 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 14:20:23,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 14:20:23,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:20:23,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 14:20:23,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:20:23,458 INFO L87 Difference]: Start difference. First operand 84 states and 120 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 9 states have internal predecessors, (27), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 14:20:30,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:20:35,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:20:41,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:20:43,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:20:47,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:20:51,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:20:52,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:20:57,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:21:01,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:21:05,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:21:09,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:21:14,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:21:18,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:21:22,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:21:23,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 14:21:24,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:21:24,255 INFO L93 Difference]: Finished difference Result 153 states and 223 transitions. [2024-11-08 14:21:24,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:21:24,256 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 9 states have internal predecessors, (27), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2024-11-08 14:21:24,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:21:24,258 INFO L225 Difference]: With dead ends: 153 [2024-11-08 14:21:24,258 INFO L226 Difference]: Without dead ends: 129 [2024-11-08 14:21:24,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:21:24,259 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 16 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 49 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.8s IncrementalHoareTripleChecker+Time [2024-11-08 14:21:24,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 317 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 192 Invalid, 12 Unknown, 0 Unchecked, 57.8s Time] [2024-11-08 14:21:24,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-08 14:21:24,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 123. [2024-11-08 14:21:24,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 58 states have (on average 1.1896551724137931) internal successors, (69), 61 states have internal predecessors, (69), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-08 14:21:24,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 177 transitions. [2024-11-08 14:21:24,287 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 177 transitions. Word has length 29 [2024-11-08 14:21:24,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:21:24,288 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 177 transitions. [2024-11-08 14:21:24,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 9 states have internal predecessors, (27), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 14:21:24,288 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 177 transitions. [2024-11-08 14:21:24,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 14:21:24,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:21:24,290 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:21:24,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 14:21:24,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:21:24,494 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:21:24,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:21:24,495 INFO L85 PathProgramCache]: Analyzing trace with hash 142204962, now seen corresponding path program 1 times [2024-11-08 14:21:24,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:21:24,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834540487] [2024-11-08 14:21:24,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:21:24,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:21:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 14:21:24,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907499892] [2024-11-08 14:21:24,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:21:24,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:21:24,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:21:24,549 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:21:24,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 14:21:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:21:24,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 14:21:24,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:21:24,792 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 14:21:24,792 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:21:24,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:21:24,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834540487] [2024-11-08 14:21:24,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 14:21:24,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907499892] [2024-11-08 14:21:24,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907499892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:21:24,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:21:24,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 14:21:24,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648191789] [2024-11-08 14:21:24,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:21:24,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:21:24,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:21:24,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:21:24,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:21:24,795 INFO L87 Difference]: Start difference. First operand 123 states and 177 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 14:21:25,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:21:25,356 INFO L93 Difference]: Finished difference Result 137 states and 188 transitions. [2024-11-08 14:21:25,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:21:25,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2024-11-08 14:21:25,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:21:25,360 INFO L225 Difference]: With dead ends: 137 [2024-11-08 14:21:25,360 INFO L226 Difference]: Without dead ends: 135 [2024-11-08 14:21:25,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:21:25,361 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 9 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:21:25,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 225 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 14:21:25,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-08 14:21:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-08 14:21:25,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 67 states have (on average 1.164179104477612) internal successors, (78), 70 states have internal predecessors, (78), 55 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-08 14:21:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 186 transitions. [2024-11-08 14:21:25,392 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 186 transitions. Word has length 41 [2024-11-08 14:21:25,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:21:25,392 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 186 transitions. [2024-11-08 14:21:25,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 14:21:25,393 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 186 transitions. [2024-11-08 14:21:25,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 14:21:25,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:21:25,397 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:21:25,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 14:21:25,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:21:25,598 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:21:25,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:21:25,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1168270398, now seen corresponding path program 1 times [2024-11-08 14:21:25,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:21:25,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246428739] [2024-11-08 14:21:25,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:21:25,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:21:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 14:21:25,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493723129] [2024-11-08 14:21:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:21:25,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:21:25,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:21:25,628 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:21:25,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 14:21:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:21:25,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 14:21:25,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:21:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-08 14:21:25,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:21:34,079 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 299] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-08 14:21:38,129 WARN L851 $PredicateComparison]: unable to prove that (or (not (= (mod (+ (* |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~r~0#1| 12) (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~r~0#1| 4294967280) (* |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~h~0#1| 4294967284) (* 4294967292 |c_ULTIMATE.start_main_~p~0#1|) (* |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~h~0#1| |c_ULTIMATE.start_main_~h~0#1|) (* |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~p~0#1| 16) (* 4294967295 |c_ULTIMATE.start_main_~h~0#1|)) 4294967296) 0)) (= (mod (+ (* |c_ULTIMATE.start_main_~p~0#1| |c_ULTIMATE.start_main_~p~0#1|) |c_ULTIMATE.start_main_~r~0#1| (* |c_ULTIMATE.start_main_~n~0#1| 4294967295)) 4294967296) 0)) is different from false