./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_search_value-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_search_value-2.i -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 a622ae6de889131f2da5147d62f9f380917f72e1547f77059c8208bcfb6e8bd0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 01:44:14,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 01:44:14,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 01:44:14,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 01:44:14,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 01:44:14,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 01:44:14,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 01:44:14,817 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 01:44:14,817 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 01:44:14,817 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 01:44:14,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 01:44:14,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 01:44:14,818 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 01:44:14,818 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 01:44:14,818 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 01:44:14,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 01:44:14,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 01:44:14,821 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 01:44:14,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 01:44:14,822 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 01:44:14,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 01:44:14,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 01:44:14,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 01:44:14,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 01:44:14,825 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 01:44:14,826 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 01:44:14,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 01:44:14,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 01:44:14,826 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 01:44:14,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 01:44:14,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 01:44:14,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 01:44:14,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 01:44:14,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 01:44:14,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 01:44:14,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 01:44:14,827 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 01:44:14,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 01:44:14,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 01:44:14,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 01:44:14,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 01:44:14,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 01:44:14,829 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a622ae6de889131f2da5147d62f9f380917f72e1547f77059c8208bcfb6e8bd0 [2024-10-14 01:44:15,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 01:44:15,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 01:44:15,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 01:44:15,068 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 01:44:15,068 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 01:44:15,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_search_value-2.i [2024-10-14 01:44:16,256 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 01:44:16,453 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 01:44:16,454 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_search_value-2.i [2024-10-14 01:44:16,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5a92806/511faf24c2934833bfbf8cf0776e5e3f/FLAGb8096ca03 [2024-10-14 01:44:16,479 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b5a92806/511faf24c2934833bfbf8cf0776e5e3f [2024-10-14 01:44:16,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 01:44:16,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 01:44:16,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 01:44:16,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 01:44:16,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 01:44:16,487 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9791f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16, skipping insertion in model container [2024-10-14 01:44:16,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,520 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 01:44:16,737 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_search_value-2.i[23220,23233] [2024-10-14 01:44:16,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 01:44:16,749 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 01:44:16,801 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_search_value-2.i[23220,23233] [2024-10-14 01:44:16,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 01:44:16,838 INFO L204 MainTranslator]: Completed translation [2024-10-14 01:44:16,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16 WrapperNode [2024-10-14 01:44:16,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 01:44:16,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 01:44:16,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 01:44:16,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 01:44:16,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,868 INFO L138 Inliner]: procedures = 122, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2024-10-14 01:44:16,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 01:44:16,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 01:44:16,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 01:44:16,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 01:44:16,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,880 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,889 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-10-14 01:44:16,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 01:44:16,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 01:44:16,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 01:44:16,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 01:44:16,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (1/1) ... [2024-10-14 01:44:16,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 01:44:16,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 01:44:16,923 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) [2024-10-14 01:44:16,925 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 [2024-10-14 01:44:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-10-14 01:44:16,956 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-10-14 01:44:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 01:44:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 01:44:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 01:44:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 01:44:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 01:44:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 01:44:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-14 01:44:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-14 01:44:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-14 01:44:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-14 01:44:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 01:44:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 01:44:16,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 01:44:16,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 01:44:17,032 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 01:44:17,033 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 01:44:17,060 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-10-14 01:44:17,141 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-14 01:44:17,141 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 01:44:17,158 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 01:44:17,158 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 01:44:17,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:44:17 BoogieIcfgContainer [2024-10-14 01:44:17,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 01:44:17,160 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 01:44:17,160 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 01:44:17,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 01:44:17,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:44:16" (1/3) ... [2024-10-14 01:44:17,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba1b70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:44:17, skipping insertion in model container [2024-10-14 01:44:17,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:44:16" (2/3) ... [2024-10-14 01:44:17,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba1b70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:44:17, skipping insertion in model container [2024-10-14 01:44:17,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:44:17" (3/3) ... [2024-10-14 01:44:17,165 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_search_value-2.i [2024-10-14 01:44:17,178 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 01:44:17,179 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 01:44:17,228 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 01:44:17,234 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;@4ab78142, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 01:44:17,234 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 01:44:17,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 01:44:17,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 01:44:17,243 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 01:44:17,244 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 01:44:17,244 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 01:44:17,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 01:44:17,248 INFO L85 PathProgramCache]: Analyzing trace with hash 357278617, now seen corresponding path program 1 times [2024-10-14 01:44:17,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 01:44:17,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224203818] [2024-10-14 01:44:17,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 01:44:17,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 01:44:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 01:44:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 01:44:17,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 01:44:17,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224203818] [2024-10-14 01:44:17,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224203818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 01:44:17,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 01:44:17,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 01:44:17,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329141786] [2024-10-14 01:44:17,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 01:44:17,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 01:44:17,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 01:44:17,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 01:44:17,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 01:44:17,444 INFO L87 Difference]: Start difference. First operand has 23 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 21 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 01:44:17,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 01:44:17,466 INFO L93 Difference]: Finished difference Result 34 states and 47 transitions. [2024-10-14 01:44:17,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 01:44:17,468 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-14 01:44:17,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 01:44:17,472 INFO L225 Difference]: With dead ends: 34 [2024-10-14 01:44:17,472 INFO L226 Difference]: Without dead ends: 17 [2024-10-14 01:44:17,474 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 [2024-10-14 01:44:17,479 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 01:44:17,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 01:44:17,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-14 01:44:17,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-14 01:44:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 01:44:17,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-10-14 01:44:17,525 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 8 [2024-10-14 01:44:17,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 01:44:17,527 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-10-14 01:44:17,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 01:44:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-10-14 01:44:17,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-14 01:44:17,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 01:44:17,528 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 01:44:17,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 01:44:17,528 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 01:44:17,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 01:44:17,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1991764778, now seen corresponding path program 1 times [2024-10-14 01:44:17,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 01:44:17,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287168455] [2024-10-14 01:44:17,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 01:44:17,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 01:44:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 01:44:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 01:44:17,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 01:44:17,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287168455] [2024-10-14 01:44:17,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287168455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 01:44:17,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 01:44:17,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 01:44:17,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991771282] [2024-10-14 01:44:17,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 01:44:17,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 01:44:17,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 01:44:17,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 01:44:17,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 01:44:17,615 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-10-14 01:44:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 01:44:17,631 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2024-10-14 01:44:17,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 01:44:17,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-14 01:44:17,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 01:44:17,632 INFO L225 Difference]: With dead ends: 27 [2024-10-14 01:44:17,633 INFO L226 Difference]: Without dead ends: 18 [2024-10-14 01:44:17,633 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 [2024-10-14 01:44:17,634 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 01:44:17,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 01:44:17,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-10-14 01:44:17,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-10-14 01:44:17,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 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) [2024-10-14 01:44:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2024-10-14 01:44:17,640 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2024-10-14 01:44:17,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 01:44:17,640 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-10-14 01:44:17,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-10-14 01:44:17,641 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-10-14 01:44:17,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-14 01:44:17,641 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 01:44:17,641 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 01:44:17,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 01:44:17,642 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 01:44:17,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 01:44:17,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2049023080, now seen corresponding path program 1 times [2024-10-14 01:44:17,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 01:44:17,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816559893] [2024-10-14 01:44:17,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 01:44:17,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 01:44:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 01:44:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 01:44:17,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 01:44:17,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816559893] [2024-10-14 01:44:17,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816559893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 01:44:17,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 01:44:17,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 01:44:17,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103032150] [2024-10-14 01:44:17,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 01:44:17,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 01:44:17,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 01:44:17,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 01:44:17,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 01:44:17,757 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-10-14 01:44:17,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 01:44:17,791 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2024-10-14 01:44:17,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 01:44:17,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-14 01:44:17,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 01:44:17,793 INFO L225 Difference]: With dead ends: 38 [2024-10-14 01:44:17,793 INFO L226 Difference]: Without dead ends: 23 [2024-10-14 01:44:17,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 01:44:17,794 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 01:44:17,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 45 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 01:44:17,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-14 01:44:17,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2024-10-14 01:44:17,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 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) [2024-10-14 01:44:17,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2024-10-14 01:44:17,799 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 10 [2024-10-14 01:44:17,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 01:44:17,799 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-10-14 01:44:17,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-10-14 01:44:17,799 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-10-14 01:44:17,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 01:44:17,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 01:44:17,801 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 01:44:17,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 01:44:17,801 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 01:44:17,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 01:44:17,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1438995548, now seen corresponding path program 1 times [2024-10-14 01:44:17,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 01:44:17,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445957778] [2024-10-14 01:44:17,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 01:44:17,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 01:44:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 01:44:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 01:44:17,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 01:44:17,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445957778] [2024-10-14 01:44:17,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445957778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 01:44:17,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 01:44:17,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 01:44:17,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278557906] [2024-10-14 01:44:17,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 01:44:17,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 01:44:17,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 01:44:17,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 01:44:17,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 01:44:17,898 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 01:44:17,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 01:44:17,925 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2024-10-14 01:44:17,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 01:44:17,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-14 01:44:17,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 01:44:17,925 INFO L225 Difference]: With dead ends: 31 [2024-10-14 01:44:17,926 INFO L226 Difference]: Without dead ends: 28 [2024-10-14 01:44:17,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 01:44:17,926 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 01:44:17,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 30 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 01:44:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-14 01:44:17,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2024-10-14 01:44:17,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 01:44:17,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-10-14 01:44:17,929 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 15 [2024-10-14 01:44:17,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 01:44:17,929 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-10-14 01:44:17,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 01:44:17,929 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-10-14 01:44:17,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-14 01:44:17,930 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 01:44:17,930 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 01:44:17,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 01:44:17,930 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 01:44:17,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 01:44:17,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1477352526, now seen corresponding path program 1 times [2024-10-14 01:44:17,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 01:44:17,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364203192] [2024-10-14 01:44:17,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 01:44:17,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 01:44:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 01:44:18,013 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 01:44:18,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 01:44:18,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364203192] [2024-10-14 01:44:18,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364203192] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 01:44:18,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74962801] [2024-10-14 01:44:18,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 01:44:18,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 01:44:18,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 01:44:18,021 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) [2024-10-14 01:44:18,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 01:44:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 01:44:18,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 01:44:18,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 01:44:18,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 01:44:18,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 01:44:18,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 01:44:18,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74962801] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 01:44:18,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 01:44:18,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-14 01:44:18,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411707233] [2024-10-14 01:44:18,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 01:44:18,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 01:44:18,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 01:44:18,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 01:44:18,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-14 01:44:18,198 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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) [2024-10-14 01:44:18,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 01:44:18,276 INFO L93 Difference]: Finished difference Result 55 states and 66 transitions. [2024-10-14 01:44:18,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 01:44:18,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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 20 [2024-10-14 01:44:18,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 01:44:18,277 INFO L225 Difference]: With dead ends: 55 [2024-10-14 01:44:18,277 INFO L226 Difference]: Without dead ends: 39 [2024-10-14 01:44:18,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-10-14 01:44:18,279 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 12 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 01:44:18,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 88 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 01:44:18,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-10-14 01:44:18,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2024-10-14 01:44:18,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 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) [2024-10-14 01:44:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2024-10-14 01:44:18,285 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 20 [2024-10-14 01:44:18,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 01:44:18,285 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2024-10-14 01:44:18,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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) [2024-10-14 01:44:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2024-10-14 01:44:18,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-14 01:44:18,286 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 01:44:18,286 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 01:44:18,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 01:44:18,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 01:44:18,487 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 01:44:18,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 01:44:18,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1302450726, now seen corresponding path program 2 times [2024-10-14 01:44:18,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 01:44:18,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050990786] [2024-10-14 01:44:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 01:44:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 01:44:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 01:44:18,711 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 01:44:18,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 01:44:18,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050990786] [2024-10-14 01:44:18,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050990786] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 01:44:18,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366152017] [2024-10-14 01:44:18,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 01:44:18,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 01:44:18,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 01:44:18,714 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) [2024-10-14 01:44:18,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 01:44:18,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 01:44:18,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 01:44:18,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 01:44:18,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 01:44:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 01:44:18,874 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 01:44:18,958 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 38 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 01:44:18,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366152017] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 01:44:18,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 01:44:18,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-10-14 01:44:18,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981502466] [2024-10-14 01:44:18,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 01:44:18,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 01:44:18,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 01:44:18,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 01:44:18,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-10-14 01:44:18,963 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 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) [2024-10-14 01:44:19,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 01:44:19,116 INFO L93 Difference]: Finished difference Result 85 states and 99 transitions. [2024-10-14 01:44:19,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 01:44:19,118 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 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 35 [2024-10-14 01:44:19,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 01:44:19,119 INFO L225 Difference]: With dead ends: 85 [2024-10-14 01:44:19,119 INFO L226 Difference]: Without dead ends: 69 [2024-10-14 01:44:19,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2024-10-14 01:44:19,120 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 18 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 01:44:19,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 93 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 01:44:19,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-10-14 01:44:19,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 66. [2024-10-14 01:44:19,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.0769230769230769) internal successors, (70), 65 states have internal predecessors, (70), 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) [2024-10-14 01:44:19,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2024-10-14 01:44:19,127 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 35 [2024-10-14 01:44:19,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 01:44:19,127 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2024-10-14 01:44:19,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 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) [2024-10-14 01:44:19,128 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2024-10-14 01:44:19,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 01:44:19,131 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 01:44:19,131 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 01:44:19,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 01:44:19,335 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,SelfDestructingSolverStorable5 [2024-10-14 01:44:19,336 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 01:44:19,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 01:44:19,337 INFO L85 PathProgramCache]: Analyzing trace with hash -2036934490, now seen corresponding path program 3 times [2024-10-14 01:44:19,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 01:44:19,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519060246] [2024-10-14 01:44:19,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 01:44:19,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 01:44:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 01:44:21,653 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 1 proven. 91 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-10-14 01:44:21,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 01:44:21,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519060246] [2024-10-14 01:44:21,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519060246] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 01:44:21,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52014592] [2024-10-14 01:44:21,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 01:44:21,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 01:44:21,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 01:44:21,657 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) [2024-10-14 01:44:21,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 01:44:27,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-14 01:44:27,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 01:44:27,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 122 conjuncts are in the unsatisfiable core [2024-10-14 01:44:27,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 01:44:27,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-14 01:44:27,578 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-14 01:44:27,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-14 01:44:27,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-14 01:44:27,667 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-10-14 01:44:27,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 23 [2024-10-14 01:44:27,718 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-10-14 01:44:27,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2024-10-14 01:44:27,778 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-14 01:44:27,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 22 [2024-10-14 01:44:27,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-14 01:44:27,885 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-10-14 01:44:27,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 25 [2024-10-14 01:44:27,957 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-14 01:44:27,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 16 [2024-10-14 01:44:28,018 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-10-14 01:44:28,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2024-10-14 01:44:28,083 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-14 01:44:28,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 16 [2024-10-14 01:44:28,136 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-10-14 01:44:28,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2024-10-14 01:44:28,198 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-14 01:44:28,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 16 [2024-10-14 01:44:28,246 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-10-14 01:44:28,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2024-10-14 01:44:28,303 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-14 01:44:28,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 16 [2024-10-14 01:44:28,342 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-10-14 01:44:28,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2024-10-14 01:44:28,378 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-14 01:44:28,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 16 [2024-10-14 01:44:28,416 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-10-14 01:44:28,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2024-10-14 01:44:28,464 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-14 01:44:28,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 16 [2024-10-14 01:44:28,500 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-10-14 01:44:28,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2024-10-14 01:44:28,550 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-14 01:44:28,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 16 [2024-10-14 01:44:28,593 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-10-14 01:44:28,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2024-10-14 01:44:28,713 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-14 01:44:28,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 16 [2024-10-14 01:44:28,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-10-14 01:44:28,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:44:28,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 28 [2024-10-14 01:44:28,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-10-14 01:44:28,854 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 14 proven. 130 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 01:44:28,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 01:44:28,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:44:28,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 44 [2024-10-14 01:44:28,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2024-10-14 01:44:29,008 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (let ((.cse0 (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_ArrVal_596 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 0))))) (and (or (= |c_ULTIMATE.start_main_~p~0#1.offset| |c_ULTIMATE.start_main_~a~0#1.offset|) .cse0) (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_ArrVal_596 (Array Int Int))) (or (not (= (select (select (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 0)) (= |c_ULTIMATE.start_main_~a~0#1.base| |ULTIMATE.start_main_~p~0#1.base|))) (or .cse0 (< 2 |c_ULTIMATE.start_main_~counter~0#1|))))) is different from false [2024-10-14 01:44:29,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:44:29,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 50 [2024-10-14 01:44:33,256 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse1 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (and (forall ((v_arrayElimArr_1 (Array Int Int))) (or (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_subst_1 Int) (v_ArrVal_596 (Array Int Int))) (or (not (= (select (select (store (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_arrayElimArr_1) v_subst_1 v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) 0)) (= |c_ULTIMATE.start_main_~a~0#1.base| v_subst_1))) (= (select v_arrayElimArr_1 .cse1) 0))) (or (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_arrayElimArr_1 (Array Int Int)) (v_prenex_1 (Array Int Int)) (v_subst_2 Int)) (or (not (= (select (select (store (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_arrayElimArr_1) v_subst_2 v_prenex_1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) 0)) (= (select v_arrayElimArr_1 .cse1) 0))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0)))) is different from false [2024-10-14 01:44:37,469 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:44:37,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 66 [2024-10-14 01:44:37,710 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~t~0#1.offset| 4)) (.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4) |c_ULTIMATE.start_main_~t~0#1.base|))) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (or (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((v_arrayElimArr_2 (Array Int Int)) (v_subst_5 Int) (v_prenex_1 (Array Int Int)) (v_subst_4 Int) (v_prenex_3 (Array Int Int)) (v_subst_2 Int)) (or (= (select v_prenex_3 4) 0) (= (select v_arrayElimArr_2 .cse0) 0) (not (= (select (select (store (store (store .cse1 v_subst_5 v_arrayElimArr_2) v_subst_4 v_prenex_3) v_subst_2 v_prenex_1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) 0))))) (forall ((v_arrayElimArr_2 (Array Int Int))) (or (= (select v_arrayElimArr_2 .cse0) 0) (forall ((v_arrayElimArr_1 (Array Int Int)) (v_subst_6 Int) (v_subst_3 Int) (v_subst_1 Int) (v_ArrVal_596 (Array Int Int))) (or (= (select v_arrayElimArr_1 4) 0) (not (= (select (select (store (store (store .cse1 v_subst_6 v_arrayElimArr_2) v_subst_3 v_arrayElimArr_1) v_subst_1 v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) 0)) (= |c_ULTIMATE.start_main_~a~0#1.base| v_subst_1))))))) is different from false [2024-10-14 01:44:37,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:44:37,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 82 [2024-10-14 01:44:41,789 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_arrayElimArr_3 (Array Int Int))) (or (= (select v_arrayElimArr_3 .cse0) 0) (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_arrayElimArr_1 (Array Int Int)) (v_subst_6 Int) (v_subst_3 Int) (v_prenex_5 (Array Int Int)) (v_subst_1 Int) (v_ArrVal_596 (Array Int Int))) (or (not (= (select (select (store (store (store (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_arrayElimArr_3) v_subst_6 v_prenex_5) v_subst_3 v_arrayElimArr_1) v_subst_1 v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 0)) (= (select v_arrayElimArr_1 4) 0) (= (select v_prenex_5 4) 0) (= |c_ULTIMATE.start_main_~a~0#1.base| v_subst_1))))) (or (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_arrayElimArr_2 (Array Int Int)) (v_arrayElimArr_3 (Array Int Int)) (v_subst_5 Int) (v_prenex_1 (Array Int Int)) (v_subst_4 Int) (v_prenex_3 (Array Int Int)) (v_subst_2 Int)) (or (= (select v_arrayElimArr_3 .cse0) 0) (= (select v_prenex_3 4) 0) (= (select v_arrayElimArr_2 4) 0) (not (= (select (select (store (store (store (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_arrayElimArr_3) v_subst_5 v_arrayElimArr_2) v_subst_4 v_prenex_3) v_subst_2 v_prenex_1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 0)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0)))) is different from false [2024-10-14 01:44:41,883 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4) |c_ULTIMATE.start_main_~t~0#1.base|))) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse0 (+ |c_ULTIMATE.start_main_~t~0#1.offset| 4))) (and (or (forall ((v_arrayElimArr_2 (Array Int Int)) (v_subst_8 Int) (v_arrayElimArr_3 (Array Int Int)) (v_subst_5 Int) (v_prenex_1 (Array Int Int)) (v_subst_4 Int) (v_prenex_3 (Array Int Int)) (v_subst_2 Int)) (or (= (select v_arrayElimArr_3 .cse0) 0) (= (select v_prenex_3 4) 0) (not (= (select (select (store (store (store (store .cse1 v_subst_8 v_arrayElimArr_3) v_subst_5 v_arrayElimArr_2) v_subst_4 v_prenex_3) v_subst_2 v_prenex_1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) 0)) (= (select v_arrayElimArr_2 4) 0))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0)) (forall ((v_arrayElimArr_3 (Array Int Int))) (or (forall ((v_arrayElimArr_1 (Array Int Int)) (v_subst_7 Int) (v_subst_6 Int) (v_subst_3 Int) (v_prenex_5 (Array Int Int)) (v_subst_1 Int) (v_ArrVal_596 (Array Int Int))) (or (not (= (select (select (store (store (store (store .cse1 v_subst_7 v_arrayElimArr_3) v_subst_6 v_prenex_5) v_subst_3 v_arrayElimArr_1) v_subst_1 v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) 0)) (= (select v_arrayElimArr_1 4) 0) (= (select v_prenex_5 4) 0) (= |c_ULTIMATE.start_main_~a~0#1.base| v_subst_1))) (= (select v_arrayElimArr_3 .cse0) 0))))) is different from false [2024-10-14 01:44:41,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:44:41,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 98 [2024-10-14 01:44:42,256 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4)) (.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (or (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_arrayElimArr_2 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_subst_8 Int) (v_arrayElimArr_3 (Array Int Int)) (v_subst_5 Int) (v_prenex_1 (Array Int Int)) (v_subst_4 Int) (v_prenex_3 (Array Int Int)) (v_subst_2 Int)) (or (not (= (select (select (store (store (store (store (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_arrayElimArr_4) v_subst_8 v_arrayElimArr_3) v_subst_5 v_arrayElimArr_2) v_subst_4 v_prenex_3) v_subst_2 v_prenex_1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) 0)) (= (select v_arrayElimArr_4 .cse1) 0) (= (select v_prenex_3 4) 0) (= (select v_arrayElimArr_2 4) 0) (= (select v_arrayElimArr_3 4) 0))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0)) (forall ((v_arrayElimArr_4 (Array Int Int))) (or (= (select v_arrayElimArr_4 .cse1) 0) (forall ((|ULTIMATE.start_main_~p~0#1.base| Int) (v_arrayElimArr_1 (Array Int Int)) (v_subst_7 Int) (v_subst_6 Int) (v_subst_3 Int) (v_prenex_5 (Array Int Int)) (v_subst_1 Int) (v_ArrVal_596 (Array Int Int)) (v_prenex_7 (Array Int Int))) (or (= (select v_prenex_7 4) 0) (= (select v_arrayElimArr_1 4) 0) (= (select v_prenex_5 4) 0) (= |c_ULTIMATE.start_main_~a~0#1.base| v_subst_1) (not (= (select (select (store (store (store (store (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_arrayElimArr_4) v_subst_7 v_prenex_7) v_subst_6 v_prenex_5) v_subst_3 v_arrayElimArr_1) v_subst_1 v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) 0)))))))) is different from false [2024-10-14 01:44:58,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:44:58,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 114 [2024-10-14 01:45:03,395 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4) |c_ULTIMATE.start_main_~t~0#1.base|))) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_~t~0#1.offset| 4))) (and (forall ((v_arrayElimArr_5 (Array Int Int))) (or (forall ((v_subst_12 Int) (v_arrayElimArr_1 (Array Int Int)) (v_subst_9 Int) (v_arrayElimArr_4 (Array Int Int)) (v_subst_7 Int) (v_subst_6 Int) (v_subst_3 Int) (v_prenex_5 (Array Int Int)) (v_subst_1 Int) (v_ArrVal_596 (Array Int Int)) (v_prenex_7 (Array Int Int))) (or (not (= (select (select (store (store (store (store (store (store .cse0 v_subst_12 v_arrayElimArr_5) v_subst_9 v_arrayElimArr_4) v_subst_7 v_prenex_7) v_subst_6 v_prenex_5) v_subst_3 v_arrayElimArr_1) v_subst_1 v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 0)) (= (select v_prenex_7 4) 0) (= (select v_arrayElimArr_1 4) 0) (= (select v_prenex_5 4) 0) (= |c_ULTIMATE.start_main_~a~0#1.base| v_subst_1) (= (select v_arrayElimArr_4 4) 0))) (= (select v_arrayElimArr_5 .cse2) 0))) (or (forall ((v_arrayElimArr_5 (Array Int Int)) (v_arrayElimArr_2 (Array Int Int)) (v_arrayElimArr_3 (Array Int Int)) (v_subst_5 Int) (v_prenex_1 (Array Int Int)) (v_subst_4 Int) (v_prenex_3 (Array Int Int)) (v_subst_11 Int) (v_subst_2 Int) (v_subst_10 Int) (v_prenex_9 (Array Int Int)) (v_subst_8 Int)) (or (= (select v_prenex_3 4) 0) (= (select v_prenex_9 4) 0) (not (= (select (select (store (store (store (store (store (store .cse0 v_subst_11 v_arrayElimArr_5) v_subst_10 v_prenex_9) v_subst_8 v_arrayElimArr_3) v_subst_5 v_arrayElimArr_2) v_subst_4 v_prenex_3) v_subst_2 v_prenex_1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 0)) (= (select v_arrayElimArr_5 .cse2) 0) (= (select v_arrayElimArr_2 4) 0) (= (select v_arrayElimArr_3 4) 0))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0)))) is different from false [2024-10-14 01:45:03,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:45:03,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 130 [2024-10-14 01:45:07,546 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4)) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_arrayElimArr_6 (Array Int Int))) (or (= (select v_arrayElimArr_6 .cse0) 0) (forall ((v_arrayElimArr_5 (Array Int Int)) (v_subst_12 Int) (|ULTIMATE.start_main_~p~0#1.base| Int) (v_arrayElimArr_1 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_subst_6 Int) (v_subst_3 Int) (v_subst_1 Int) (v_ArrVal_596 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_7 (Array Int Int)) (v_subst_9 Int) (v_subst_7 Int)) (or (= (select v_prenex_7 4) 0) (= (select v_arrayElimArr_5 4) 0) (= (select v_arrayElimArr_1 4) 0) (= (select v_prenex_5 4) 0) (= |c_ULTIMATE.start_main_~a~0#1.base| v_subst_1) (not (= (select (select (store (store (store (store (store (store (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_arrayElimArr_6) v_subst_12 v_arrayElimArr_5) v_subst_9 v_arrayElimArr_4) v_subst_7 v_prenex_7) v_subst_6 v_prenex_5) v_subst_3 v_arrayElimArr_1) v_subst_1 v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 0)) (= (select v_arrayElimArr_4 4) 0))))) (or (forall ((v_arrayElimArr_6 (Array Int Int)) (|ULTIMATE.start_main_~p~0#1.base| Int) (v_arrayElimArr_2 (Array Int Int)) (v_arrayElimArr_3 (Array Int Int)) (v_subst_5 Int) (v_prenex_1 (Array Int Int)) (v_subst_4 Int) (v_prenex_3 (Array Int Int)) (v_subst_11 Int) (v_subst_2 Int) (v_subst_10 Int) (v_prenex_9 (Array Int Int)) (v_subst_8 Int) (v_prenex_11 (Array Int Int))) (or (= (select v_arrayElimArr_6 .cse0) 0) (= (select v_prenex_11 4) 0) (= (select v_prenex_3 4) 0) (= (select v_prenex_9 4) 0) (not (= (select (select (store (store (store (store (store (store (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_arrayElimArr_6) v_subst_11 v_prenex_11) v_subst_10 v_prenex_9) v_subst_8 v_arrayElimArr_3) v_subst_5 v_arrayElimArr_2) v_subst_4 v_prenex_3) v_subst_2 v_prenex_1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 0)) (= (select v_arrayElimArr_2 4) 0) (= (select v_arrayElimArr_3 4) 0))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0)))) is different from false [2024-10-14 01:45:07,701 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~p~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~p~0#1.base|) (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4) |c_ULTIMATE.start_main_~t~0#1.base|))) (.cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_~t~0#1.offset| 4))) (and (or (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((v_arrayElimArr_6 (Array Int Int)) (v_subst_14 Int) (v_arrayElimArr_2 (Array Int Int)) (v_arrayElimArr_3 (Array Int Int)) (v_subst_5 Int) (v_prenex_1 (Array Int Int)) (v_subst_4 Int) (v_prenex_3 (Array Int Int)) (v_subst_11 Int) (v_subst_2 Int) (v_subst_10 Int) (v_prenex_9 (Array Int Int)) (v_subst_8 Int) (v_prenex_11 (Array Int Int))) (or (= (select v_prenex_11 4) 0) (= (select v_prenex_3 4) 0) (= (select v_prenex_9 4) 0) (not (= (select (select (store (store (store (store (store (store (store .cse0 v_subst_14 v_arrayElimArr_6) v_subst_11 v_prenex_11) v_subst_10 v_prenex_9) v_subst_8 v_arrayElimArr_3) v_subst_5 v_arrayElimArr_2) v_subst_4 v_prenex_3) v_subst_2 v_prenex_1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 0)) (= (select v_arrayElimArr_6 .cse2) 0) (= (select v_arrayElimArr_2 4) 0) (= (select v_arrayElimArr_3 4) 0)))) (forall ((v_arrayElimArr_6 (Array Int Int))) (or (forall ((v_arrayElimArr_5 (Array Int Int)) (v_subst_13 Int) (v_subst_12 Int) (v_arrayElimArr_1 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_subst_6 Int) (v_subst_3 Int) (v_subst_1 Int) (v_ArrVal_596 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_7 (Array Int Int)) (v_subst_9 Int) (v_subst_7 Int)) (or (not (= (select (select (store (store (store (store (store (store (store .cse0 v_subst_13 v_arrayElimArr_6) v_subst_12 v_arrayElimArr_5) v_subst_9 v_arrayElimArr_4) v_subst_7 v_prenex_7) v_subst_6 v_prenex_5) v_subst_3 v_arrayElimArr_1) v_subst_1 v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 0)) (= (select v_prenex_7 4) 0) (= (select v_arrayElimArr_5 4) 0) (= (select v_arrayElimArr_1 4) 0) (= (select v_prenex_5 4) 0) (= |c_ULTIMATE.start_main_~a~0#1.base| v_subst_1) (= (select v_arrayElimArr_4 4) 0))) (= (select v_arrayElimArr_6 .cse2) 0))))) is different from false [2024-10-14 01:45:07,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:45:07,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 146 [2024-10-14 01:45:11,900 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (.cse1 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (and (forall ((v_arrayElimArr_7 (Array Int Int))) (or (forall ((v_arrayElimArr_6 (Array Int Int)) (v_arrayElimArr_5 (Array Int Int)) (v_subst_13 Int) (v_subst_12 Int) (|ULTIMATE.start_main_~p~0#1.base| Int) (v_arrayElimArr_1 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_subst_6 Int) (v_subst_3 Int) (v_subst_1 Int) (v_ArrVal_596 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_7 (Array Int Int)) (v_subst_9 Int) (v_subst_7 Int)) (or (= (select v_arrayElimArr_6 4) 0) (= (select v_prenex_7 4) 0) (= (select v_arrayElimArr_5 4) 0) (= (select v_arrayElimArr_1 4) 0) (= (select v_prenex_5 4) 0) (= |c_ULTIMATE.start_main_~a~0#1.base| v_subst_1) (not (= (select (select (store (store (store (store (store (store (store (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_arrayElimArr_7) v_subst_13 v_arrayElimArr_6) v_subst_12 v_arrayElimArr_5) v_subst_9 v_arrayElimArr_4) v_subst_7 v_prenex_7) v_subst_6 v_prenex_5) v_subst_3 v_arrayElimArr_1) v_subst_1 v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) 0)) (= (select v_arrayElimArr_4 4) 0))) (= (select v_arrayElimArr_7 .cse1) 0))) (or (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((v_subst_14 Int) (v_arrayElimArr_7 (Array Int Int)) (|ULTIMATE.start_main_~p~0#1.base| Int) (v_arrayElimArr_2 (Array Int Int)) (v_arrayElimArr_3 (Array Int Int)) (v_subst_5 Int) (v_prenex_1 (Array Int Int)) (v_subst_4 Int) (v_prenex_3 (Array Int Int)) (v_subst_11 Int) (v_subst_2 Int) (v_subst_10 Int) (v_prenex_9 (Array Int Int)) (v_subst_8 Int) (v_prenex_13 (Array Int Int)) (v_prenex_11 (Array Int Int))) (or (not (= (select (select (store (store (store (store (store (store (store (store |c_#memory_$Pointer$#1.base| |ULTIMATE.start_main_~p~0#1.base| v_arrayElimArr_7) v_subst_14 v_prenex_13) v_subst_11 v_prenex_11) v_subst_10 v_prenex_9) v_subst_8 v_arrayElimArr_3) v_subst_5 v_arrayElimArr_2) v_subst_4 v_prenex_3) v_subst_2 v_prenex_1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) 0)) (= (select v_prenex_11 4) 0) (= (select v_prenex_3 4) 0) (= (select v_prenex_9 4) 0) (= (select v_prenex_13 4) 0) (= (select v_arrayElimArr_2 4) 0) (= (select v_arrayElimArr_3 4) 0) (= (select v_arrayElimArr_7 .cse1) 0)))))) is different from false [2024-10-14 01:45:12,504 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:45:12,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 162 [2024-10-14 01:45:38,849 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (forall ((v_ArrVal_568 (Array Int Int)) (v_arrayElimArr_8 (Array Int Int))) (or (forall ((v_subst_15 Int) (v_arrayElimArr_6 (Array Int Int)) (v_arrayElimArr_5 (Array Int Int)) (v_subst_13 Int) (v_arrayElimArr_7 (Array Int Int)) (v_subst_12 Int) (v_subst_18 Int) (v_arrayElimArr_1 (Array Int Int)) (v_arrayElimArr_4 (Array Int Int)) (v_subst_6 Int) (v_subst_3 Int) (v_subst_1 Int) (v_ArrVal_596 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_7 (Array Int Int)) (v_subst_9 Int) (v_subst_7 Int)) (or (= (select v_arrayElimArr_6 4) 0) (= (select v_prenex_7 4) 0) (= (select v_arrayElimArr_5 4) 0) (= 0 (select v_arrayElimArr_7 4)) (= (select v_arrayElimArr_1 4) 0) (= (select v_prenex_5 4) 0) (= |c_ULTIMATE.start_main_~a~0#1.base| v_subst_1) (not (= (select (select (store (store (store (store (store (store (store (store (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_568) v_subst_18 v_arrayElimArr_8) v_subst_15 v_arrayElimArr_7) v_subst_13 v_arrayElimArr_6) v_subst_12 v_arrayElimArr_5) v_subst_9 v_arrayElimArr_4) v_subst_7 v_prenex_7) v_subst_6 v_prenex_5) v_subst_3 v_arrayElimArr_1) v_subst_1 v_ArrVal_596) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) 0)) (= (select v_arrayElimArr_4 4) 0))) (= (select v_arrayElimArr_8 4) 0))) (or (forall ((v_subst_14 Int) (v_arrayElimArr_8 (Array Int Int)) (v_arrayElimArr_2 (Array Int Int)) (v_subst_17 Int) (v_arrayElimArr_3 (Array Int Int)) (v_subst_16 Int) (v_subst_5 Int) (v_prenex_1 (Array Int Int)) (v_subst_4 Int) (v_prenex_3 (Array Int Int)) (v_subst_11 Int) (v_subst_2 Int) (v_subst_10 Int) (v_ArrVal_568 (Array Int Int)) (v_prenex_9 (Array Int Int)) (v_subst_8 Int) (v_prenex_13 (Array Int Int)) (v_prenex_11 (Array Int Int)) (v_prenex_15 (Array Int Int))) (or (= (select v_prenex_11 4) 0) (= (select v_arrayElimArr_8 4) 0) (= (select v_prenex_3 4) 0) (= (select v_prenex_9 4) 0) (= (select v_prenex_13 4) 0) (not (= (select (select (store (store (store (store (store (store (store (store (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_568) v_subst_17 v_arrayElimArr_8) v_subst_16 v_prenex_15) v_subst_14 v_prenex_13) v_subst_11 v_prenex_11) v_subst_10 v_prenex_9) v_subst_8 v_arrayElimArr_3) v_subst_5 v_arrayElimArr_2) v_subst_4 v_prenex_3) v_subst_2 v_prenex_1) |c_ULTIMATE.start_main_~a~0#1.base|) .cse0) 0)) (= (select v_arrayElimArr_2 4) 0) (= (select v_arrayElimArr_3 4) 0) (= (select v_prenex_15 4) 0))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0)))) is different from false [2024-10-14 01:45:38,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:45:38,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 51 [2024-10-14 01:45:38,996 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-14 01:45:43,535 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 01:45:43,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 316728068276225 treesize of output 316521909846022