./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.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 ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 22:49:22,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 22:49:22,624 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 22:49:22,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 22:49:22,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 22:49:22,662 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 22:49:22,663 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 22:49:22,663 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 22:49:22,664 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 22:49:22,665 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 22:49:22,665 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 22:49:22,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 22:49:22,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 22:49:22,668 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 22:49:22,669 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 22:49:22,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 22:49:22,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 22:49:22,670 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 22:49:22,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 22:49:22,672 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 22:49:22,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 22:49:22,673 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 22:49:22,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 22:49:22,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 22:49:22,674 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 22:49:22,675 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 22:49:22,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 22:49:22,675 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 22:49:22,676 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 22:49:22,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 22:49:22,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 22:49:22,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 22:49:22,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 22:49:22,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 22:49:22,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 22:49:22,678 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 22:49:22,678 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 22:49:22,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 22:49:22,679 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 22:49:22,679 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 22:49:22,680 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 22:49:22,680 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 22:49:22,680 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2024-11-16 22:49:22,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 22:49:22,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 22:49:22,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 22:49:22,954 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 22:49:22,954 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 22:49:22,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2024-11-16 22:49:24,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 22:49:24,667 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 22:49:24,667 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i [2024-11-16 22:49:24,691 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/228b06730/132400938d2c40afa6106e2d49c8ca47/FLAGf25b39916 [2024-11-16 22:49:24,930 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/228b06730/132400938d2c40afa6106e2d49c8ca47 [2024-11-16 22:49:24,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 22:49:24,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 22:49:24,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 22:49:24,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 22:49:24,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 22:49:24,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:49:24" (1/1) ... [2024-11-16 22:49:24,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bdf7613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:24, skipping insertion in model container [2024-11-16 22:49:24,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:49:24" (1/1) ... [2024-11-16 22:49:24,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 22:49:25,378 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i[33519,33532] [2024-11-16 22:49:25,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 22:49:25,521 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 22:49:25,574 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-1.i[33519,33532] [2024-11-16 22:49:25,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 22:49:25,681 INFO L204 MainTranslator]: Completed translation [2024-11-16 22:49:25,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25 WrapperNode [2024-11-16 22:49:25,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 22:49:25,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 22:49:25,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 22:49:25,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 22:49:25,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:25,741 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:25,865 INFO L138 Inliner]: procedures = 176, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1515 [2024-11-16 22:49:25,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 22:49:25,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 22:49:25,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 22:49:25,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 22:49:25,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:25,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:25,902 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:25,994 INFO L175 MemorySlicer]: Split 309 memory accesses to 2 slices as follows [307, 2]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2]. The 82 writes are split as follows [82, 0]. [2024-11-16 22:49:25,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:25,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:26,055 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:26,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:26,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:26,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:26,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 22:49:26,091 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 22:49:26,091 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 22:49:26,091 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 22:49:26,092 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (1/1) ... [2024-11-16 22:49:26,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 22:49:26,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 22:49:26,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 22:49:26,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 22:49:26,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 22:49:26,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 22:49:26,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 22:49:26,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 22:49:26,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-16 22:49:26,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-16 22:49:26,167 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-16 22:49:26,167 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-16 22:49:26,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 22:49:26,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 22:49:26,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 22:49:26,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 22:49:26,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 22:49:26,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 22:49:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 22:49:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 22:49:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 22:49:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 22:49:26,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 22:49:26,389 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 22:49:26,396 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 22:49:27,906 INFO L? ?]: Removed 377 outVars from TransFormulas that were not future-live. [2024-11-16 22:49:27,906 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 22:49:28,016 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 22:49:28,019 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-16 22:49:28,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:49:28 BoogieIcfgContainer [2024-11-16 22:49:28,020 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 22:49:28,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 22:49:28,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 22:49:28,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 22:49:28,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:49:24" (1/3) ... [2024-11-16 22:49:28,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e878a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:49:28, skipping insertion in model container [2024-11-16 22:49:28,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:49:25" (2/3) ... [2024-11-16 22:49:28,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e878a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:49:28, skipping insertion in model container [2024-11-16 22:49:28,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 10:49:28" (3/3) ... [2024-11-16 22:49:28,033 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test4-1.i [2024-11-16 22:49:28,050 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 22:49:28,050 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 22:49:28,137 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 22:49:28,145 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;@633cb424, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 22:49:28,145 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 22:49:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 409 states, 400 states have (on average 1.605) internal successors, (642), 401 states have internal predecessors, (642), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 22:49:28,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-16 22:49:28,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:49:28,160 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:49:28,161 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:49:28,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:49:28,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1111828091, now seen corresponding path program 1 times [2024-11-16 22:49:28,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:49:28,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854039277] [2024-11-16 22:49:28,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:28,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:49:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:28,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 22:49:28,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:49:28,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854039277] [2024-11-16 22:49:28,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854039277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:49:28,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:49:28,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 22:49:28,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031290563] [2024-11-16 22:49:28,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:49:28,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 22:49:28,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:49:28,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 22:49:28,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 22:49:28,367 INFO L87 Difference]: Start difference. First operand has 409 states, 400 states have (on average 1.605) internal successors, (642), 401 states have internal predecessors, (642), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 22:49:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:49:28,524 INFO L93 Difference]: Finished difference Result 815 states and 1304 transitions. [2024-11-16 22:49:28,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 22:49:28,527 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2024-11-16 22:49:28,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:49:28,538 INFO L225 Difference]: With dead ends: 815 [2024-11-16 22:49:28,539 INFO L226 Difference]: Without dead ends: 405 [2024-11-16 22:49:28,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 22:49:28,551 INFO L432 NwaCegarLoop]: 542 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 22:49:28,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 542 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 22:49:28,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-16 22:49:28,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-11-16 22:49:28,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 397 states have (on average 1.433249370277078) internal successors, (569), 397 states have internal predecessors, (569), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-16 22:49:28,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 581 transitions. [2024-11-16 22:49:28,622 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 581 transitions. Word has length 11 [2024-11-16 22:49:28,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:49:28,622 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 581 transitions. [2024-11-16 22:49:28,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 22:49:28,623 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 581 transitions. [2024-11-16 22:49:28,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-16 22:49:28,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:49:28,623 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:49:28,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 22:49:28,624 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:49:28,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:49:28,624 INFO L85 PathProgramCache]: Analyzing trace with hash -62893775, now seen corresponding path program 1 times [2024-11-16 22:49:28,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:49:28,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188710800] [2024-11-16 22:49:28,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:28,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:49:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:28,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 22:49:28,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:49:28,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188710800] [2024-11-16 22:49:28,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188710800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:49:28,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:49:28,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 22:49:28,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716297010] [2024-11-16 22:49:28,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:49:28,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 22:49:28,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:49:28,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 22:49:28,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 22:49:28,806 INFO L87 Difference]: Start difference. First operand 405 states and 581 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 22:49:29,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:49:29,277 INFO L93 Difference]: Finished difference Result 1134 states and 1641 transitions. [2024-11-16 22:49:29,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 22:49:29,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-16 22:49:29,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:49:29,285 INFO L225 Difference]: With dead ends: 1134 [2024-11-16 22:49:29,286 INFO L226 Difference]: Without dead ends: 729 [2024-11-16 22:49:29,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 22:49:29,291 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 469 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 22:49:29,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1535 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 22:49:29,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-16 22:49:29,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2024-11-16 22:49:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 718 states have (on average 1.448467966573816) internal successors, (1040), 718 states have internal predecessors, (1040), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 22:49:29,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1058 transitions. [2024-11-16 22:49:29,329 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1058 transitions. Word has length 12 [2024-11-16 22:49:29,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:49:29,329 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1058 transitions. [2024-11-16 22:49:29,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 22:49:29,329 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1058 transitions. [2024-11-16 22:49:29,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 22:49:29,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:49:29,338 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:49:29,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 22:49:29,338 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:49:29,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:49:29,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1900512113, now seen corresponding path program 1 times [2024-11-16 22:49:29,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:49:29,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111246472] [2024-11-16 22:49:29,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:29,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:49:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:29,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 22:49:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:29,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 22:49:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 22:49:29,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:49:29,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111246472] [2024-11-16 22:49:29,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111246472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:49:29,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:49:29,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 22:49:29,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69006871] [2024-11-16 22:49:29,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:49:29,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 22:49:29,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:49:29,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 22:49:29,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 22:49:29,955 INFO L87 Difference]: Start difference. First operand 729 states and 1058 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 22:49:30,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:49:30,497 INFO L93 Difference]: Finished difference Result 1405 states and 2043 transitions. [2024-11-16 22:49:30,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 22:49:30,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 176 [2024-11-16 22:49:30,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:49:30,505 INFO L225 Difference]: With dead ends: 1405 [2024-11-16 22:49:30,506 INFO L226 Difference]: Without dead ends: 738 [2024-11-16 22:49:30,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 22:49:30,508 INFO L432 NwaCegarLoop]: 508 mSDtfsCounter, 108 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 22:49:30,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1848 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 22:49:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-16 22:49:30,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 729. [2024-11-16 22:49:30,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 718 states have (on average 1.4289693593314763) internal successors, (1026), 718 states have internal predecessors, (1026), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 22:49:30,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1044 transitions. [2024-11-16 22:49:30,547 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1044 transitions. Word has length 176 [2024-11-16 22:49:30,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:49:30,547 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1044 transitions. [2024-11-16 22:49:30,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 22:49:30,549 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1044 transitions. [2024-11-16 22:49:30,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 22:49:30,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:49:30,554 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:49:30,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 22:49:30,558 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:49:30,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:49:30,558 INFO L85 PathProgramCache]: Analyzing trace with hash 346305272, now seen corresponding path program 1 times [2024-11-16 22:49:30,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:49:30,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239661452] [2024-11-16 22:49:30,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:30,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:49:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:30,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 22:49:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:30,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-16 22:49:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 22:49:30,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:49:30,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239661452] [2024-11-16 22:49:30,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239661452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:49:30,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:49:30,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 22:49:30,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198946913] [2024-11-16 22:49:30,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:49:30,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 22:49:30,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:49:30,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 22:49:30,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 22:49:30,865 INFO L87 Difference]: Start difference. First operand 729 states and 1044 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 22:49:31,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:49:31,301 INFO L93 Difference]: Finished difference Result 1315 states and 1892 transitions. [2024-11-16 22:49:31,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 22:49:31,301 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 176 [2024-11-16 22:49:31,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:49:31,307 INFO L225 Difference]: With dead ends: 1315 [2024-11-16 22:49:31,307 INFO L226 Difference]: Without dead ends: 730 [2024-11-16 22:49:31,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 22:49:31,309 INFO L432 NwaCegarLoop]: 528 mSDtfsCounter, 137 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 22:49:31,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1477 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 22:49:31,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-16 22:49:31,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 727. [2024-11-16 22:49:31,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 716 states have (on average 1.4287709497206704) internal successors, (1023), 716 states have internal predecessors, (1023), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 22:49:31,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1041 transitions. [2024-11-16 22:49:31,340 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1041 transitions. Word has length 176 [2024-11-16 22:49:31,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:49:31,341 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1041 transitions. [2024-11-16 22:49:31,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 22:49:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1041 transitions. [2024-11-16 22:49:31,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-16 22:49:31,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:49:31,348 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:49:31,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 22:49:31,349 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:49:31,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:49:31,349 INFO L85 PathProgramCache]: Analyzing trace with hash -973318995, now seen corresponding path program 1 times [2024-11-16 22:49:31,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:49:31,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257469650] [2024-11-16 22:49:31,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:31,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:49:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:31,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 22:49:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:31,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 22:49:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:31,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 22:49:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:31,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 22:49:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:31,872 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 22:49:31,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:49:31,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257469650] [2024-11-16 22:49:31,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257469650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:49:31,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:49:31,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 22:49:31,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171076239] [2024-11-16 22:49:31,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:49:31,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 22:49:31,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:49:31,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 22:49:31,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 22:49:31,878 INFO L87 Difference]: Start difference. First operand 727 states and 1041 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-16 22:49:32,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:49:32,353 INFO L93 Difference]: Finished difference Result 1173 states and 1683 transitions. [2024-11-16 22:49:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 22:49:32,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 191 [2024-11-16 22:49:32,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:49:32,359 INFO L225 Difference]: With dead ends: 1173 [2024-11-16 22:49:32,359 INFO L226 Difference]: Without dead ends: 646 [2024-11-16 22:49:32,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 22:49:32,363 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 33 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 22:49:32,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1632 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 22:49:32,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-11-16 22:49:32,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 643. [2024-11-16 22:49:32,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 632 states have (on average 1.375) internal successors, (869), 632 states have internal predecessors, (869), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 22:49:32,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 887 transitions. [2024-11-16 22:49:32,386 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 887 transitions. Word has length 191 [2024-11-16 22:49:32,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:49:32,388 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 887 transitions. [2024-11-16 22:49:32,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-16 22:49:32,390 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 887 transitions. [2024-11-16 22:49:32,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-16 22:49:32,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:49:32,394 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:49:32,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 22:49:32,395 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:49:32,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:49:32,395 INFO L85 PathProgramCache]: Analyzing trace with hash 717239092, now seen corresponding path program 1 times [2024-11-16 22:49:32,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:49:32,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173801236] [2024-11-16 22:49:32,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:32,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:49:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:33,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 22:49:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:33,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 22:49:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:33,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-16 22:49:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:33,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 22:49:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:33,641 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 22:49:33,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:49:33,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173801236] [2024-11-16 22:49:33,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173801236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 22:49:33,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735596798] [2024-11-16 22:49:33,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:33,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 22:49:33,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 22:49:33,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 22:49:33,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 22:49:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:34,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-16 22:49:34,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 22:49:34,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-16 22:49:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 22:49:35,267 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 22:49:35,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735596798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:49:35,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 22:49:35,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-16 22:49:35,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670777771] [2024-11-16 22:49:35,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:49:35,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 22:49:35,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:49:35,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 22:49:35,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-16 22:49:35,271 INFO L87 Difference]: Start difference. First operand 643 states and 887 transitions. Second operand has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 11 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 22:49:37,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:49:37,273 INFO L93 Difference]: Finished difference Result 1311 states and 1798 transitions. [2024-11-16 22:49:37,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 22:49:37,274 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 11 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 191 [2024-11-16 22:49:37,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:49:37,278 INFO L225 Difference]: With dead ends: 1311 [2024-11-16 22:49:37,278 INFO L226 Difference]: Without dead ends: 756 [2024-11-16 22:49:37,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-11-16 22:49:37,281 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 738 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 22:49:37,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 2234 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 22:49:37,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-16 22:49:37,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 670. [2024-11-16 22:49:37,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 659 states have (on average 1.3672230652503794) internal successors, (901), 659 states have internal predecessors, (901), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 22:49:37,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 919 transitions. [2024-11-16 22:49:37,304 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 919 transitions. Word has length 191 [2024-11-16 22:49:37,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:49:37,305 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 919 transitions. [2024-11-16 22:49:37,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 11 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 22:49:37,305 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 919 transitions. [2024-11-16 22:49:37,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-16 22:49:37,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:49:37,307 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:49:37,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 22:49:37,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 22:49:37,508 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:49:37,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:49:37,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1191743555, now seen corresponding path program 1 times [2024-11-16 22:49:37,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:49:37,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035579601] [2024-11-16 22:49:37,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:37,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:49:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:38,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 22:49:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:38,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 22:49:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:38,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 22:49:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:38,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-16 22:49:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:38,366 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 22:49:38,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:49:38,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035579601] [2024-11-16 22:49:38,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035579601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 22:49:38,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231849346] [2024-11-16 22:49:38,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:38,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 22:49:38,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 22:49:38,370 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 22:49:38,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 22:49:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:38,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-16 22:49:38,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 22:49:39,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-16 22:49:39,925 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 22:49:39,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 22:49:39,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231849346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:49:39,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 22:49:39,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2024-11-16 22:49:39,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464385614] [2024-11-16 22:49:39,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:49:39,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 22:49:39,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:49:39,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 22:49:39,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-16 22:49:39,928 INFO L87 Difference]: Start difference. First operand 670 states and 919 transitions. Second operand has 12 states, 12 states have (on average 14.583333333333334) internal successors, (175), 12 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 22:49:42,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:49:42,477 INFO L93 Difference]: Finished difference Result 1360 states and 1863 transitions. [2024-11-16 22:49:42,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 22:49:42,477 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.583333333333334) internal successors, (175), 12 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 192 [2024-11-16 22:49:42,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:49:42,481 INFO L225 Difference]: With dead ends: 1360 [2024-11-16 22:49:42,481 INFO L226 Difference]: Without dead ends: 810 [2024-11-16 22:49:42,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2024-11-16 22:49:42,483 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 802 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 2863 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 22:49:42,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 2863 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 22:49:42,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-16 22:49:42,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 707. [2024-11-16 22:49:42,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 696 states have (on average 1.3620689655172413) internal successors, (948), 696 states have internal predecessors, (948), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 22:49:42,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 966 transitions. [2024-11-16 22:49:42,504 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 966 transitions. Word has length 192 [2024-11-16 22:49:42,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:49:42,505 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 966 transitions. [2024-11-16 22:49:42,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.583333333333334) internal successors, (175), 12 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 22:49:42,505 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 966 transitions. [2024-11-16 22:49:42,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 22:49:42,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:49:42,507 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:49:42,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 22:49:42,708 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,SelfDestructingSolverStorable6 [2024-11-16 22:49:42,709 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:49:42,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:49:42,713 INFO L85 PathProgramCache]: Analyzing trace with hash -2106354089, now seen corresponding path program 1 times [2024-11-16 22:49:42,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:49:42,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611397990] [2024-11-16 22:49:42,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:42,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:49:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:43,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 22:49:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:43,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 22:49:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:43,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 22:49:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:43,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-16 22:49:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:43,295 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 22:49:43,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:49:43,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611397990] [2024-11-16 22:49:43,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611397990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:49:43,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:49:43,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 22:49:43,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989439802] [2024-11-16 22:49:43,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:49:43,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 22:49:43,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:49:43,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 22:49:43,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 22:49:43,298 INFO L87 Difference]: Start difference. First operand 707 states and 966 transitions. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 22:49:43,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:49:43,970 INFO L93 Difference]: Finished difference Result 1316 states and 1810 transitions. [2024-11-16 22:49:43,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 22:49:43,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 193 [2024-11-16 22:49:43,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:49:43,974 INFO L225 Difference]: With dead ends: 1316 [2024-11-16 22:49:43,974 INFO L226 Difference]: Without dead ends: 732 [2024-11-16 22:49:43,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 22:49:43,976 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 12 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 22:49:43,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1815 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 22:49:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-16 22:49:43,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 725. [2024-11-16 22:49:43,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 714 states have (on average 1.3627450980392157) internal successors, (973), 714 states have internal predecessors, (973), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 22:49:43,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 991 transitions. [2024-11-16 22:49:43,996 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 991 transitions. Word has length 193 [2024-11-16 22:49:43,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:49:43,997 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 991 transitions. [2024-11-16 22:49:43,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 22:49:43,997 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 991 transitions. [2024-11-16 22:49:43,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-16 22:49:43,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:49:43,999 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:49:43,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 22:49:44,000 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:49:44,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:49:44,000 INFO L85 PathProgramCache]: Analyzing trace with hash -154011365, now seen corresponding path program 1 times [2024-11-16 22:49:44,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:49:44,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014636604] [2024-11-16 22:49:44,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:44,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:49:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:44,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 22:49:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:44,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 22:49:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:44,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-16 22:49:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:44,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-16 22:49:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:44,492 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 22:49:44,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:49:44,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014636604] [2024-11-16 22:49:44,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014636604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:49:44,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 22:49:44,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 22:49:44,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271428478] [2024-11-16 22:49:44,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:49:44,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 22:49:44,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:49:44,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 22:49:44,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 22:49:44,495 INFO L87 Difference]: Start difference. First operand 725 states and 991 transitions. Second operand has 8 states, 8 states have (on average 22.0) internal successors, (176), 7 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 22:49:45,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:49:45,488 INFO L93 Difference]: Finished difference Result 1341 states and 1845 transitions. [2024-11-16 22:49:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 22:49:45,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 7 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 193 [2024-11-16 22:49:45,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:49:45,492 INFO L225 Difference]: With dead ends: 1341 [2024-11-16 22:49:45,492 INFO L226 Difference]: Without dead ends: 750 [2024-11-16 22:49:45,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 22:49:45,494 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 17 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 22:49:45,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2426 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 22:49:45,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-16 22:49:45,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 741. [2024-11-16 22:49:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 730 states have (on average 1.3630136986301369) internal successors, (995), 730 states have internal predecessors, (995), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-16 22:49:45,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1013 transitions. [2024-11-16 22:49:45,517 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1013 transitions. Word has length 193 [2024-11-16 22:49:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:49:45,518 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 1013 transitions. [2024-11-16 22:49:45,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 7 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-16 22:49:45,518 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1013 transitions. [2024-11-16 22:49:45,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-16 22:49:45,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:49:45,521 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:49:45,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 22:49:45,521 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:49:45,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:49:45,522 INFO L85 PathProgramCache]: Analyzing trace with hash -202071557, now seen corresponding path program 1 times [2024-11-16 22:49:45,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:49:45,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033585203] [2024-11-16 22:49:45,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:45,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:49:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:46,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 22:49:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:46,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 22:49:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:46,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-16 22:49:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:46,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-16 22:49:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 22:49:46,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:49:46,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033585203] [2024-11-16 22:49:46,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033585203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 22:49:46,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292963319] [2024-11-16 22:49:46,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:46,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 22:49:46,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 22:49:46,391 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 22:49:46,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 22:49:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:47,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 22:49:47,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 22:49:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 22:49:47,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 22:49:47,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292963319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 22:49:47,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 22:49:47,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-16 22:49:47,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894575638] [2024-11-16 22:49:47,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 22:49:47,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 22:49:47,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 22:49:47,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 22:49:47,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 22:49:47,081 INFO L87 Difference]: Start difference. First operand 741 states and 1013 transitions. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-16 22:49:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 22:49:47,285 INFO L93 Difference]: Finished difference Result 1366 states and 1871 transitions. [2024-11-16 22:49:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 22:49:47,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 194 [2024-11-16 22:49:47,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 22:49:47,289 INFO L225 Difference]: With dead ends: 1366 [2024-11-16 22:49:47,290 INFO L226 Difference]: Without dead ends: 807 [2024-11-16 22:49:47,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 22:49:47,292 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 453 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 22:49:47,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1906 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 22:49:47,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-11-16 22:49:47,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 744. [2024-11-16 22:49:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 732 states have (on average 1.3633879781420766) internal successors, (998), 733 states have internal predecessors, (998), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-16 22:49:47,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1019 transitions. [2024-11-16 22:49:47,313 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1019 transitions. Word has length 194 [2024-11-16 22:49:47,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 22:49:47,313 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1019 transitions. [2024-11-16 22:49:47,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-16 22:49:47,314 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1019 transitions. [2024-11-16 22:49:47,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-16 22:49:47,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 22:49:47,316 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 22:49:47,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 22:49:47,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 22:49:47,517 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 22:49:47,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 22:49:47,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1828251269, now seen corresponding path program 1 times [2024-11-16 22:49:47,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 22:49:47,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553313612] [2024-11-16 22:49:47,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:47,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 22:49:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:48,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 22:49:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:48,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 22:49:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:48,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-16 22:49:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:48,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-16 22:49:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-16 22:49:48,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 22:49:48,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553313612] [2024-11-16 22:49:48,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553313612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 22:49:48,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860586102] [2024-11-16 22:49:48,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 22:49:48,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 22:49:48,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 22:49:48,620 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 22:49:48,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 22:49:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 22:49:49,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 153 conjuncts are in the unsatisfiable core [2024-11-16 22:49:49,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 22:49:49,385 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-16 22:49:49,417 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 18 treesize of output 7 [2024-11-16 22:49:49,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 18 [2024-11-16 22:49:49,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2024-11-16 22:49:49,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-11-16 22:49:49,853 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 11 treesize of output 7 [2024-11-16 22:49:49,874 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-11-16 22:49:49,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2024-11-16 22:49:49,882 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 [2024-11-16 22:49:49,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-16 22:49:49,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-16 22:49:49,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-16 22:49:50,167 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-16 22:49:50,168 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 57 [2024-11-16 22:49:50,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 16 [2024-11-16 22:49:50,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-16 22:49:56,684 INFO L224 Elim1Store]: Index analysis took 284 ms