./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 08:51:23,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 08:51:23,222 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 08:51:23,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 08:51:23,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 08:51:23,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 08:51:23,251 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 08:51:23,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 08:51:23,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 08:51:23,252 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 08:51:23,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 08:51:23,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 08:51:23,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 08:51:23,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 08:51:23,253 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 08:51:23,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 08:51:23,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 08:51:23,253 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 08:51:23,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 08:51:23,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 08:51:23,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 08:51:23,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 08:51:23,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 08:51:23,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 08:51:23,254 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 08:51:23,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 08:51:23,254 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 08:51:23,254 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 08:51:23,254 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 08:51:23,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 08:51:23,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 08:51:23,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 08:51:23,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:51:23,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 08:51:23,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 08:51:23,255 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 08:51:23,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 08:51:23,256 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 08:51:23,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 08:51:23,256 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 08:51:23,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 08:51:23,256 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 08:51:23,256 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 08:51:23,256 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/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 -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2025-02-06 08:51:23,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 08:51:23,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 08:51:23,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 08:51:23,479 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 08:51:23,479 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 08:51:23,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-2.i [2025-02-06 08:51:24,582 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e8998201/400a8ee784cb46c085d61e65d9fe3b56/FLAG40884c991 [2025-02-06 08:51:24,855 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 08:51:24,855 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-2.i [2025-02-06 08:51:24,866 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e8998201/400a8ee784cb46c085d61e65d9fe3b56/FLAG40884c991 [2025-02-06 08:51:24,880 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4e8998201/400a8ee784cb46c085d61e65d9fe3b56 [2025-02-06 08:51:24,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 08:51:24,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 08:51:24,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 08:51:24,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 08:51:24,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 08:51:24,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:51:24" (1/1) ... [2025-02-06 08:51:24,889 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754518a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:24, skipping insertion in model container [2025-02-06 08:51:24,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:51:24" (1/1) ... [2025-02-06 08:51:24,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 08:51:25,118 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-2.i[33519,33532] [2025-02-06 08:51:25,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:51:25,207 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 08:51:25,229 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test4-2.i[33519,33532] [2025-02-06 08:51:25,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:51:25,308 INFO L204 MainTranslator]: Completed translation [2025-02-06 08:51:25,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25 WrapperNode [2025-02-06 08:51:25,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 08:51:25,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 08:51:25,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 08:51:25,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 08:51:25,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,387 INFO L138 Inliner]: procedures = 176, calls = 376, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1662 [2025-02-06 08:51:25,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 08:51:25,389 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 08:51:25,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 08:51:25,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 08:51:25,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,411 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,498 INFO L175 MemorySlicer]: Split 357 memory accesses to 2 slices as follows [2, 355]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 90 writes are split as follows [0, 90]. [2025-02-06 08:51:25,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,499 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,542 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,560 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 08:51:25,589 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 08:51:25,590 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 08:51:25,590 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 08:51:25,591 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (1/1) ... [2025-02-06 08:51:25,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:51:25,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:51:25,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 08:51:25,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 08:51:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 08:51:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 08:51:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 08:51:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 08:51:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 08:51:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 08:51:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 08:51:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 08:51:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 08:51:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 08:51:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 08:51:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 08:51:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 08:51:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 08:51:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 08:51:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 08:51:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 08:51:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 08:51:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 08:51:25,806 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 08:51:25,808 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 08:51:26,924 INFO L? ?]: Removed 401 outVars from TransFormulas that were not future-live. [2025-02-06 08:51:26,924 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 08:51:26,963 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 08:51:26,965 INFO L337 CfgBuilder]: Removed 2 assume(true) statements. [2025-02-06 08:51:26,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:51:26 BoogieIcfgContainer [2025-02-06 08:51:26,966 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 08:51:26,967 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 08:51:26,968 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 08:51:26,971 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 08:51:26,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 08:51:24" (1/3) ... [2025-02-06 08:51:26,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ba4333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:51:26, skipping insertion in model container [2025-02-06 08:51:26,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:25" (2/3) ... [2025-02-06 08:51:26,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ba4333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:51:26, skipping insertion in model container [2025-02-06 08:51:26,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:51:26" (3/3) ... [2025-02-06 08:51:26,973 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_nondet_test4-2.i [2025-02-06 08:51:26,983 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 08:51:26,984 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_nondet_test4-2.i that has 3 procedures, 434 locations, 1 initial locations, 41 loop locations, and 1 error locations. [2025-02-06 08:51:27,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:51:27,045 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;@6fbc07db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:51:27,047 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 08:51:27,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 430 states, 421 states have (on average 1.6104513064133017) internal successors, (678), 422 states have internal predecessors, (678), 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) [2025-02-06 08:51:27,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-06 08:51:27,056 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 08:51:27,056 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:51:27,056 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 08:51:27,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:51:27,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1006231998, now seen corresponding path program 1 times [2025-02-06 08:51:27,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:51:27,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119088107] [2025-02-06 08:51:27,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:27,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:51:27,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 08:51:27,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 08:51:27,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:27,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:51:27,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:51:27,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119088107] [2025-02-06 08:51:27,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119088107] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:51:27,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:51:27,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 08:51:27,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039811867] [2025-02-06 08:51:27,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:51:27,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 08:51:27,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:51:27,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 08:51:27,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 08:51:27,269 INFO L87 Difference]: Start difference. First operand has 430 states, 421 states have (on average 1.6104513064133017) internal successors, (678), 422 states have internal predecessors, (678), 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 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:51:27,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 08:51:27,729 INFO L93 Difference]: Finished difference Result 1176 states and 1892 transitions. [2025-02-06 08:51:27,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 08:51:27,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-02-06 08:51:27,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 08:51:27,740 INFO L225 Difference]: With dead ends: 1176 [2025-02-06 08:51:27,741 INFO L226 Difference]: Without dead ends: 711 [2025-02-06 08:51:27,745 INFO L434 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 [2025-02-06 08:51:27,747 INFO L435 NwaCegarLoop]: 572 mSDtfsCounter, 464 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 08:51:27,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1639 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 08:51:27,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2025-02-06 08:51:27,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 711. [2025-02-06 08:51:27,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 700 states have (on average 1.46) internal successors, (1022), 700 states have internal predecessors, (1022), 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) [2025-02-06 08:51:27,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1040 transitions. [2025-02-06 08:51:27,825 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1040 transitions. Word has length 9 [2025-02-06 08:51:27,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 08:51:27,826 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 1040 transitions. [2025-02-06 08:51:27,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 08:51:27,826 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1040 transitions. [2025-02-06 08:51:27,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-02-06 08:51:27,835 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 08:51:27,835 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-06 08:51:27,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 08:51:27,835 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 08:51:27,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:51:27,836 INFO L85 PathProgramCache]: Analyzing trace with hash -396560350, now seen corresponding path program 1 times [2025-02-06 08:51:27,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:51:27,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706999651] [2025-02-06 08:51:27,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:27,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:51:27,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-02-06 08:51:27,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-02-06 08:51:27,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:27,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:28,397 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 08:51:28,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:51:28,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706999651] [2025-02-06 08:51:28,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706999651] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:51:28,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:51:28,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 08:51:28,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493215471] [2025-02-06 08:51:28,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:51:28,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 08:51:28,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:51:28,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 08:51:28,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 08:51:28,399 INFO L87 Difference]: Start difference. First operand 711 states and 1040 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2025-02-06 08:51:28,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 08:51:28,561 INFO L93 Difference]: Finished difference Result 1369 states and 1998 transitions. [2025-02-06 08:51:28,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 08:51:28,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 168 [2025-02-06 08:51:28,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 08:51:28,564 INFO L225 Difference]: With dead ends: 1369 [2025-02-06 08:51:28,564 INFO L226 Difference]: Without dead ends: 717 [2025-02-06 08:51:28,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 08:51:28,566 INFO L435 NwaCegarLoop]: 499 mSDtfsCounter, 105 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 08:51:28,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1413 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 08:51:28,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2025-02-06 08:51:28,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 711. [2025-02-06 08:51:28,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 700 states have (on average 1.44) internal successors, (1008), 700 states have internal predecessors, (1008), 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) [2025-02-06 08:51:28,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1026 transitions. [2025-02-06 08:51:28,593 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1026 transitions. Word has length 168 [2025-02-06 08:51:28,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 08:51:28,594 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 1026 transitions. [2025-02-06 08:51:28,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2025-02-06 08:51:28,594 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1026 transitions. [2025-02-06 08:51:28,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-02-06 08:51:28,596 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 08:51:28,596 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-06 08:51:28,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 08:51:28,596 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 08:51:28,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:51:28,597 INFO L85 PathProgramCache]: Analyzing trace with hash 529821755, now seen corresponding path program 1 times [2025-02-06 08:51:28,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:51:28,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799886968] [2025-02-06 08:51:28,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:28,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:51:28,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-02-06 08:51:28,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-02-06 08:51:28,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:28,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 08:51:28,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:51:28,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799886968] [2025-02-06 08:51:28,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799886968] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:51:28,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:51:28,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 08:51:28,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129347679] [2025-02-06 08:51:28,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:51:28,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:51:28,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:51:28,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:51:28,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:51:28,835 INFO L87 Difference]: Start difference. First operand 711 states and 1026 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2025-02-06 08:51:28,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 08:51:28,938 INFO L93 Difference]: Finished difference Result 1279 states and 1847 transitions. [2025-02-06 08:51:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:51:28,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 168 [2025-02-06 08:51:28,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 08:51:28,941 INFO L225 Difference]: With dead ends: 1279 [2025-02-06 08:51:28,941 INFO L226 Difference]: Without dead ends: 709 [2025-02-06 08:51:28,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:51:28,942 INFO L435 NwaCegarLoop]: 518 mSDtfsCounter, 134 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 08:51:28,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1028 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 08:51:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2025-02-06 08:51:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2025-02-06 08:51:28,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 698 states have (on average 1.4398280802292263) internal successors, (1005), 698 states have internal predecessors, (1005), 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) [2025-02-06 08:51:28,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 1023 transitions. [2025-02-06 08:51:28,956 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 1023 transitions. Word has length 168 [2025-02-06 08:51:28,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 08:51:28,957 INFO L471 AbstractCegarLoop]: Abstraction has 709 states and 1023 transitions. [2025-02-06 08:51:28,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2025-02-06 08:51:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 1023 transitions. [2025-02-06 08:51:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-02-06 08:51:28,958 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 08:51:28,959 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:51:28,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 08:51:28,959 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 08:51:28,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:51:28,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1298730787, now seen corresponding path program 1 times [2025-02-06 08:51:28,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:51:28,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095169256] [2025-02-06 08:51:28,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:28,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:51:29,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-02-06 08:51:29,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-02-06 08:51:29,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:29,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:29,288 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 08:51:29,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:51:29,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095169256] [2025-02-06 08:51:29,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095169256] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:51:29,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:51:29,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 08:51:29,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181135054] [2025-02-06 08:51:29,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:51:29,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 08:51:29,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:51:29,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 08:51:29,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 08:51:29,290 INFO L87 Difference]: Start difference. First operand 709 states and 1023 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) [2025-02-06 08:51:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 08:51:29,403 INFO L93 Difference]: Finished difference Result 1139 states and 1640 transitions. [2025-02-06 08:51:29,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 08:51:29,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 183 [2025-02-06 08:51:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 08:51:29,406 INFO L225 Difference]: With dead ends: 1139 [2025-02-06 08:51:29,406 INFO L226 Difference]: Without dead ends: 625 [2025-02-06 08:51:29,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 08:51:29,407 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 30 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 08:51:29,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1262 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 08:51:29,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2025-02-06 08:51:29,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2025-02-06 08:51:29,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 614 states have (on average 1.3859934853420195) internal successors, (851), 614 states have internal predecessors, (851), 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) [2025-02-06 08:51:29,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 869 transitions. [2025-02-06 08:51:29,423 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 869 transitions. Word has length 183 [2025-02-06 08:51:29,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 08:51:29,423 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 869 transitions. [2025-02-06 08:51:29,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) [2025-02-06 08:51:29,424 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 869 transitions. [2025-02-06 08:51:29,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-02-06 08:51:29,425 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 08:51:29,425 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:51:29,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 08:51:29,425 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 08:51:29,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:51:29,426 INFO L85 PathProgramCache]: Analyzing trace with hash 173012918, now seen corresponding path program 1 times [2025-02-06 08:51:29,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:51:29,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539991199] [2025-02-06 08:51:29,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:29,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:51:29,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-02-06 08:51:29,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-02-06 08:51:29,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:29,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:51:30,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:51:30,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539991199] [2025-02-06 08:51:30,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539991199] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 08:51:30,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174750217] [2025-02-06 08:51:30,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:30,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 08:51:30,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:51:30,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 08:51:30,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 08:51:30,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-02-06 08:51:30,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-02-06 08:51:30,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:30,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:30,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-02-06 08:51:30,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 08:51:30,657 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 [2025-02-06 08:51:31,274 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 08:51:31,274 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 08:51:31,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174750217] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:51:31,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 08:51:31,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4] total 13 [2025-02-06 08:51:31,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578250987] [2025-02-06 08:51:31,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:51:31,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 08:51:31,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:51:31,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 08:51:31,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-02-06 08:51:31,276 INFO L87 Difference]: Start difference. First operand 625 states and 869 transitions. Second operand has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 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) [2025-02-06 08:51:33,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 08:51:33,101 INFO L93 Difference]: Finished difference Result 1274 states and 1761 transitions. [2025-02-06 08:51:33,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 08:51:33,101 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 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 183 [2025-02-06 08:51:33,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 08:51:33,104 INFO L225 Difference]: With dead ends: 1274 [2025-02-06 08:51:33,104 INFO L226 Difference]: Without dead ends: 734 [2025-02-06 08:51:33,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2025-02-06 08:51:33,105 INFO L435 NwaCegarLoop]: 442 mSDtfsCounter, 720 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-06 08:51:33,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 2624 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-06 08:51:33,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2025-02-06 08:51:33,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 650. [2025-02-06 08:51:33,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 639 states have (on average 1.378716744913928) internal successors, (881), 639 states have internal predecessors, (881), 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) [2025-02-06 08:51:33,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 899 transitions. [2025-02-06 08:51:33,124 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 899 transitions. Word has length 183 [2025-02-06 08:51:33,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 08:51:33,124 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 899 transitions. [2025-02-06 08:51:33,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 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) [2025-02-06 08:51:33,125 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 899 transitions. [2025-02-06 08:51:33,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-02-06 08:51:33,126 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 08:51:33,126 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:51:33,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 08:51:33,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 08:51:33,327 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 08:51:33,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:51:33,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1726067338, now seen corresponding path program 1 times [2025-02-06 08:51:33,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:51:33,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478509826] [2025-02-06 08:51:33,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:33,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:51:33,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 08:51:33,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 08:51:33,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:33,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:33,870 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:51:33,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:51:33,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478509826] [2025-02-06 08:51:33,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478509826] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 08:51:33,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91650604] [2025-02-06 08:51:33,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:33,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 08:51:33,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:51:33,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 08:51:33,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 08:51:34,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-02-06 08:51:34,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-02-06 08:51:34,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:34,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:34,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-06 08:51:34,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 08:51:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 08:51:34,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 08:51:34,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91650604] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:51:34,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 08:51:34,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-06 08:51:34,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199522485] [2025-02-06 08:51:34,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:51:34,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 08:51:34,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:51:34,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 08:51:34,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:51:34,290 INFO L87 Difference]: Start difference. First operand 650 states and 899 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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) [2025-02-06 08:51:34,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 08:51:34,493 INFO L93 Difference]: Finished difference Result 1233 states and 1707 transitions. [2025-02-06 08:51:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 08:51:34,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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 184 [2025-02-06 08:51:34,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 08:51:34,496 INFO L225 Difference]: With dead ends: 1233 [2025-02-06 08:51:34,496 INFO L226 Difference]: Without dead ends: 693 [2025-02-06 08:51:34,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:51:34,498 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 17 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 08:51:34,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1145 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 08:51:34,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2025-02-06 08:51:34,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 677. [2025-02-06 08:51:34,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 666 states have (on average 1.3723723723723724) internal successors, (914), 666 states have internal predecessors, (914), 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) [2025-02-06 08:51:34,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 932 transitions. [2025-02-06 08:51:34,513 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 932 transitions. Word has length 184 [2025-02-06 08:51:34,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 08:51:34,514 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 932 transitions. [2025-02-06 08:51:34,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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) [2025-02-06 08:51:34,514 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 932 transitions. [2025-02-06 08:51:34,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2025-02-06 08:51:34,515 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 08:51:34,516 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:51:34,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 08:51:34,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 08:51:34,718 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 08:51:34,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:51:34,718 INFO L85 PathProgramCache]: Analyzing trace with hash -228694061, now seen corresponding path program 1 times [2025-02-06 08:51:34,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:51:34,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445328483] [2025-02-06 08:51:34,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:34,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:51:34,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-02-06 08:51:34,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-02-06 08:51:34,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:34,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 08:51:35,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:51:35,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445328483] [2025-02-06 08:51:35,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445328483] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:51:35,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:51:35,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 08:51:35,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029740760] [2025-02-06 08:51:35,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:51:35,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:51:35,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:51:35,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:51:35,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:51:35,080 INFO L87 Difference]: Start difference. First operand 677 states and 932 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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) [2025-02-06 08:51:35,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 08:51:35,470 INFO L93 Difference]: Finished difference Result 1252 states and 1726 transitions. [2025-02-06 08:51:35,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:51:35,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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 185 [2025-02-06 08:51:35,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 08:51:35,473 INFO L225 Difference]: With dead ends: 1252 [2025-02-06 08:51:35,473 INFO L226 Difference]: Without dead ends: 689 [2025-02-06 08:51:35,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:51:35,474 INFO L435 NwaCegarLoop]: 436 mSDtfsCounter, 8 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 08:51:35,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1708 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 08:51:35,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2025-02-06 08:51:35,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 685. [2025-02-06 08:51:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 674 states have (on average 1.370919881305638) internal successors, (924), 674 states have internal predecessors, (924), 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) [2025-02-06 08:51:35,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 942 transitions. [2025-02-06 08:51:35,487 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 942 transitions. Word has length 185 [2025-02-06 08:51:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 08:51:35,488 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 942 transitions. [2025-02-06 08:51:35,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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) [2025-02-06 08:51:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 942 transitions. [2025-02-06 08:51:35,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-02-06 08:51:35,489 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 08:51:35,489 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:51:35,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 08:51:35,489 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 08:51:35,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:51:35,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1464235054, now seen corresponding path program 1 times [2025-02-06 08:51:35,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:51:35,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572798677] [2025-02-06 08:51:35,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:35,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:51:35,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-02-06 08:51:35,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-02-06 08:51:35,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:35,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:35,815 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 08:51:35,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:51:35,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572798677] [2025-02-06 08:51:35,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572798677] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:51:35,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:51:35,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 08:51:35,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764884807] [2025-02-06 08:51:35,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:51:35,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 08:51:35,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:51:35,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 08:51:35,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 08:51:35,817 INFO L87 Difference]: Start difference. First operand 685 states and 942 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2025-02-06 08:51:36,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 08:51:36,273 INFO L93 Difference]: Finished difference Result 1267 states and 1746 transitions. [2025-02-06 08:51:36,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 08:51:36,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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 186 [2025-02-06 08:51:36,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 08:51:36,276 INFO L225 Difference]: With dead ends: 1267 [2025-02-06 08:51:36,276 INFO L226 Difference]: Without dead ends: 707 [2025-02-06 08:51:36,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 08:51:36,279 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 12 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2021 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 08:51:36,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2021 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 08:51:36,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2025-02-06 08:51:36,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 701. [2025-02-06 08:51:36,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 690 states have (on average 1.3710144927536232) internal successors, (946), 690 states have internal predecessors, (946), 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) [2025-02-06 08:51:36,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 964 transitions. [2025-02-06 08:51:36,295 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 964 transitions. Word has length 186 [2025-02-06 08:51:36,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 08:51:36,296 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 964 transitions. [2025-02-06 08:51:36,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2025-02-06 08:51:36,296 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 964 transitions. [2025-02-06 08:51:36,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-02-06 08:51:36,297 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 08:51:36,297 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:51:36,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 08:51:36,298 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 08:51:36,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:51:36,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1236101410, now seen corresponding path program 1 times [2025-02-06 08:51:36,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:51:36,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197261692] [2025-02-06 08:51:36,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:36,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:51:36,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-02-06 08:51:36,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-02-06 08:51:36,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:36,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:36,729 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-06 08:51:36,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:51:36,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197261692] [2025-02-06 08:51:36,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197261692] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 08:51:36,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849233555] [2025-02-06 08:51:36,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:36,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 08:51:36,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:51:36,732 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 08:51:36,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 08:51:36,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-02-06 08:51:37,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-02-06 08:51:37,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:37,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:37,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 08:51:37,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 08:51:37,235 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 08:51:37,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 08:51:37,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849233555] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:51:37,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 08:51:37,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 6 [2025-02-06 08:51:37,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911548054] [2025-02-06 08:51:37,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:51:37,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 08:51:37,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:51:37,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 08:51:37,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:51:37,241 INFO L87 Difference]: Start difference. First operand 701 states and 964 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 08:51:37,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 08:51:37,407 INFO L93 Difference]: Finished difference Result 1293 states and 1782 transitions. [2025-02-06 08:51:37,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 08:51:37,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 186 [2025-02-06 08:51:37,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 08:51:37,412 INFO L225 Difference]: With dead ends: 1293 [2025-02-06 08:51:37,412 INFO L226 Difference]: Without dead ends: 765 [2025-02-06 08:51:37,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:51:37,413 INFO L435 NwaCegarLoop]: 438 mSDtfsCounter, 445 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 08:51:37,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1742 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 08:51:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2025-02-06 08:51:37,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 704. [2025-02-06 08:51:37,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 692 states have (on average 1.3713872832369942) internal successors, (949), 693 states have internal predecessors, (949), 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) [2025-02-06 08:51:37,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 970 transitions. [2025-02-06 08:51:37,428 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 970 transitions. Word has length 186 [2025-02-06 08:51:37,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 08:51:37,429 INFO L471 AbstractCegarLoop]: Abstraction has 704 states and 970 transitions. [2025-02-06 08:51:37,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 08:51:37,429 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 970 transitions. [2025-02-06 08:51:37,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-02-06 08:51:37,430 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 08:51:37,430 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:51:37,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 08:51:37,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 08:51:37,631 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 08:51:37,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:51:37,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1665153694, now seen corresponding path program 1 times [2025-02-06 08:51:37,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:51:37,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854741091] [2025-02-06 08:51:37,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:37,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:51:37,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-02-06 08:51:38,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-02-06 08:51:38,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:38,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:38,461 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-06 08:51:38,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:51:38,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854741091] [2025-02-06 08:51:38,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854741091] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 08:51:38,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672013946] [2025-02-06 08:51:38,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:51:38,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 08:51:38,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:51:38,464 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 08:51:38,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 08:51:38,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-02-06 08:51:39,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-02-06 08:51:39,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:51:39,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:39,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-06 08:51:39,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 08:51:39,164 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 08:51:39,164 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 08:51:39,224 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-06 08:51:39,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672013946] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 08:51:39,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 08:51:39,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 11 [2025-02-06 08:51:39,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869512444] [2025-02-06 08:51:39,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 08:51:39,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 08:51:39,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:51:39,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 08:51:39,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-02-06 08:51:39,226 INFO L87 Difference]: Start difference. First operand 704 states and 970 transitions. Second operand has 11 states, 11 states have (on average 22.727272727272727) internal successors, (250), 11 states have internal predecessors, (250), 3 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-06 08:51:39,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 08:51:39,499 INFO L93 Difference]: Finished difference Result 1309 states and 1816 transitions. [2025-02-06 08:51:39,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 08:51:39,500 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 22.727272727272727) internal successors, (250), 11 states have internal predecessors, (250), 3 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 190 [2025-02-06 08:51:39,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 08:51:39,503 INFO L225 Difference]: With dead ends: 1309 [2025-02-06 08:51:39,503 INFO L226 Difference]: Without dead ends: 778 [2025-02-06 08:51:39,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2025-02-06 08:51:39,504 INFO L435 NwaCegarLoop]: 473 mSDtfsCounter, 396 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 08:51:39,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 2309 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 08:51:39,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2025-02-06 08:51:39,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 713. [2025-02-06 08:51:39,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 700 states have (on average 1.3757142857142857) internal successors, (963), 701 states have internal predecessors, (963), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2025-02-06 08:51:39,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 984 transitions. [2025-02-06 08:51:39,520 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 984 transitions. Word has length 190 [2025-02-06 08:51:39,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 08:51:39,521 INFO L471 AbstractCegarLoop]: Abstraction has 713 states and 984 transitions. [2025-02-06 08:51:39,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.727272727272727) internal successors, (250), 11 states have internal predecessors, (250), 3 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-06 08:51:39,521 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 984 transitions. [2025-02-06 08:51:39,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2025-02-06 08:51:39,522 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 08:51:39,522 INFO L218 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:51:39,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 08:51:39,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 08:51:39,723 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 08:51:39,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:51:39,723 INFO L85 PathProgramCache]: Analyzing trace with hash -38413982, now seen corresponding path program 2 times [2025-02-06 08:51:39,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:51:39,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851844520] [2025-02-06 08:51:39,723 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 08:51:39,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:51:39,770 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 198 statements into 2 equivalence classes. [2025-02-06 08:51:40,045 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 198 of 198 statements. [2025-02-06 08:51:40,045 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 08:51:40,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 1 proven. 48 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-02-06 08:51:40,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:51:40,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851844520] [2025-02-06 08:51:40,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851844520] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 08:51:40,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826264666] [2025-02-06 08:51:40,296 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 08:51:40,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 08:51:40,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:51:40,298 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 08:51:40,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 08:51:40,600 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 198 statements into 2 equivalence classes. [2025-02-06 08:51:40,847 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 198 of 198 statements. [2025-02-06 08:51:40,848 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 08:51:40,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:51:40,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 289 conjuncts are in the unsatisfiable core [2025-02-06 08:51:40,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 08:51:40,907 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 [2025-02-06 08:51:40,938 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 [2025-02-06 08:51:41,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 21 [2025-02-06 08:51:41,403 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 [2025-02-06 08:51:41,422 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 15 treesize of output 1 [2025-02-06 08:51:41,425 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 [2025-02-06 08:51:41,446 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2025-02-06 08:51:41,446 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 [2025-02-06 08:51:41,509 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 [2025-02-06 08:51:41,513 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 [2025-02-06 08:51:41,624 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2025-02-06 08:51:41,625 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 50 treesize of output 45 [2025-02-06 08:51:41,633 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