./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/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/AutomizerMemDerefMemtrack.xml', '-i', '../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 valid-free) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '00bfc508b8ea24f88f85b042e795fbae14e8287990a04ebdf542583ad129e19a']
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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 00bfc508b8ea24f88f85b042e795fbae14e8287990a04ebdf542583ad129e19a
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 16:21:27,871 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 16:21:27,936 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf
[2024-11-07 16:21:27,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 16:21:27,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 16:21:27,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 16:21:27,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 16:21:27,971 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 16:21:27,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 16:21:27,971 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 16:21:27,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 16:21:27,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 16:21:27,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 16:21:27,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 16:21:27,972 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 16:21:27,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 16:21:27,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 16:21:27,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 16:21:27,974 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-07 16:21:27,974 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-07 16:21:27,974 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-07 16:21:27,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 16:21:27,975 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-07 16:21:27,975 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 16:21:27,975 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 16:21:27,975 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 16:21:27,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 16:21:27,976 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 16:21:27,976 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 16:21:27,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 16:21:27,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 16:21:27,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 16:21:27,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 16:21:27,977 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 16:21:27,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 16:21:27,977 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 16:21:27,977 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 16:21:27,977 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 16:21:27,977 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 16:21:27,977 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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00bfc508b8ea24f88f85b042e795fbae14e8287990a04ebdf542583ad129e19a
[2024-11-07 16:21:28,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 16:21:28,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 16:21:28,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 16:21:28,482 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 16:21:28,482 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 16:21:28,484 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i
[2024-11-07 16:21:29,782 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 16:21:30,072 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 16:21:30,075 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-15/count_up_and_down_alloca.i
[2024-11-07 16:21:30,089 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7e7d001f7/9b5ab44306d444e3ad67f22dff95d664/FLAGd40b01d1f
[2024-11-07 16:21:30,108 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7e7d001f7/9b5ab44306d444e3ad67f22dff95d664
[2024-11-07 16:21:30,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 16:21:30,112 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 16:21:30,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 16:21:30,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 16:21:30,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 16:21:30,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ee95c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30, skipping insertion in model container
[2024-11-07 16:21:30,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,146 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 16:21:30,410 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 16:21:30,423 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 16:21:30,466 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 16:21:30,503 INFO L204 MainTranslator]: Completed translation
[2024-11-07 16:21:30,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30 WrapperNode
[2024-11-07 16:21:30,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 16:21:30,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 16:21:30,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 16:21:30,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 16:21:30,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,526 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,546 INFO L138 Inliner]: procedures = 151, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57
[2024-11-07 16:21:30,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 16:21:30,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 16:21:30,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 16:21:30,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 16:21:30,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,573 INFO L175 MemorySlicer]: Split 6 memory accesses to 1 slices as follows [6]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3].
[2024-11-07 16:21:30,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 16:21:30,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 16:21:30,594 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 16:21:30,594 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 16:21:30,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (1/1) ...
[2024-11-07 16:21:30,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 16:21:30,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 16:21:30,630 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)
[2024-11-07 16:21:30,634 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
[2024-11-07 16:21:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-07 16:21:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-07 16:21:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-07 16:21:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-07 16:21:30,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 16:21:30,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 16:21:30,734 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 16:21:30,736 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 16:21:30,931 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live.
[2024-11-07 16:21:30,932 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 16:21:30,942 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 16:21:30,942 INFO L316 CfgBuilder]: Removed 3 assume(true) statements.
[2024-11-07 16:21:30,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:21:30 BoogieIcfgContainer
[2024-11-07 16:21:30,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 16:21:30,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 16:21:30,945 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 16:21:30,949 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 16:21:30,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:21:30" (1/3) ...
[2024-11-07 16:21:30,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317996e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:21:30, skipping insertion in model container
[2024-11-07 16:21:30,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:30" (2/3) ...
[2024-11-07 16:21:30,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317996e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:21:30, skipping insertion in model container
[2024-11-07 16:21:30,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:21:30" (3/3) ...
[2024-11-07 16:21:30,953 INFO L112 eAbstractionObserver]: Analyzing ICFG count_up_and_down_alloca.i
[2024-11-07 16:21:30,967 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 16:21:30,967 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations.
[2024-11-07 16:21:31,016 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 16:21:31,027 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=None, 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;@22af846e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 16:21:31,028 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations.
[2024-11-07 16:21:31,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 24 states have (on average 1.875) internal successors, (45), 37 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:31,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-07 16:21:31,037 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:31,038 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:31,039 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:31,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:31,043 INFO L85 PathProgramCache]: Analyzing trace with hash 889508776, now seen corresponding path program 1 times
[2024-11-07 16:21:31,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:31,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118115335]
[2024-11-07 16:21:31,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:31,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:31,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:31,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:31,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118115335]
[2024-11-07 16:21:31,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118115335] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:31,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 16:21:31,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 16:21:31,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181870097]
[2024-11-07 16:21:31,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:31,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 16:21:31,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:31,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 16:21:31,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 16:21:31,286 INFO L87 Difference]: Start difference. First operand has 38 states, 24 states have (on average 1.875) internal successors, (45), 37 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:31,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:31,357 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions.
[2024-11-07 16:21:31,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 16:21:31,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-07 16:21:31,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:31,365 INFO L225 Difference]: With dead ends: 38
[2024-11-07 16:21:31,365 INFO L226 Difference]: Without dead ends: 36
[2024-11-07 16:21:31,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 16:21:31,370 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:31,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 26 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 16:21:31,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2024-11-07 16:21:31,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2024-11-07 16:21:31,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:31,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions.
[2024-11-07 16:21:31,396 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 6
[2024-11-07 16:21:31,396 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:31,396 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions.
[2024-11-07 16:21:31,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:31,397 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions.
[2024-11-07 16:21:31,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-07 16:21:31,397 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:31,397 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:31,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 16:21:31,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:31,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:31,398 INFO L85 PathProgramCache]: Analyzing trace with hash 889508777, now seen corresponding path program 1 times
[2024-11-07 16:21:31,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:31,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562224280]
[2024-11-07 16:21:31,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:31,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:31,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:31,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562224280]
[2024-11-07 16:21:31,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562224280] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:31,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 16:21:31,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-07 16:21:31,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83925017]
[2024-11-07 16:21:31,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:31,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-07 16:21:31,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:31,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-07 16:21:31,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 16:21:31,472 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:31,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:31,528 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions.
[2024-11-07 16:21:31,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-07 16:21:31,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-07 16:21:31,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:31,529 INFO L225 Difference]: With dead ends: 30
[2024-11-07 16:21:31,529 INFO L226 Difference]: Without dead ends: 30
[2024-11-07 16:21:31,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-07 16:21:31,530 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 19 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:31,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 21 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 16:21:31,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-11-07 16:21:31,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2024-11-07 16:21:31,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.434782608695652) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:31,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions.
[2024-11-07 16:21:31,536 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 6
[2024-11-07 16:21:31,537 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:31,537 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions.
[2024-11-07 16:21:31,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:31,537 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions.
[2024-11-07 16:21:31,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-07 16:21:31,537 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:31,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:31,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 16:21:31,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:31,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:31,538 INFO L85 PathProgramCache]: Analyzing trace with hash 889508778, now seen corresponding path program 1 times
[2024-11-07 16:21:31,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:31,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058501167]
[2024-11-07 16:21:31,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:31,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:31,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:31,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058501167]
[2024-11-07 16:21:31,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058501167] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:31,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 16:21:31,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 16:21:31,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59989058]
[2024-11-07 16:21:31,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:31,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 16:21:31,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:31,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 16:21:31,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 16:21:31,788 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:31,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:31,893 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions.
[2024-11-07 16:21:31,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 16:21:31,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-07 16:21:31,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:31,894 INFO L225 Difference]: With dead ends: 56
[2024-11-07 16:21:31,895 INFO L226 Difference]: Without dead ends: 56
[2024-11-07 16:21:31,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 16:21:31,896 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 46 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:31,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 59 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 16:21:31,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-11-07 16:21:31,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 33.
[2024-11-07 16:21:31,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:31,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions.
[2024-11-07 16:21:31,900 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 6
[2024-11-07 16:21:31,900 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:31,900 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions.
[2024-11-07 16:21:31,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions.
[2024-11-07 16:21:31,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-07 16:21:31,901 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:31,901 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:31,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-07 16:21:31,901 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:31,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:31,902 INFO L85 PathProgramCache]: Analyzing trace with hash 889568360, now seen corresponding path program 1 times
[2024-11-07 16:21:31,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:31,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066797529]
[2024-11-07 16:21:31,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:31,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:32,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:32,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066797529]
[2024-11-07 16:21:32,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066797529] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:32,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 16:21:32,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 16:21:32,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762320252]
[2024-11-07 16:21:32,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:32,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 16:21:32,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:32,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 16:21:32,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 16:21:32,087 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:32,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:32,165 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions.
[2024-11-07 16:21:32,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-07 16:21:32,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-07 16:21:32,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:32,166 INFO L225 Difference]: With dead ends: 32
[2024-11-07 16:21:32,166 INFO L226 Difference]: Without dead ends: 32
[2024-11-07 16:21:32,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-07 16:21:32,167 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:32,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 17 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 16:21:32,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2024-11-07 16:21:32,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29.
[2024-11-07 16:21:32,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.391304347826087) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions.
[2024-11-07 16:21:32,172 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 6
[2024-11-07 16:21:32,173 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:32,173 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions.
[2024-11-07 16:21:32,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions.
[2024-11-07 16:21:32,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-07 16:21:32,173 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:32,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:32,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 16:21:32,174 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:32,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:32,175 INFO L85 PathProgramCache]: Analyzing trace with hash -592252371, now seen corresponding path program 1 times
[2024-11-07 16:21:32,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:32,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728699109]
[2024-11-07 16:21:32,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:32,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:32,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:32,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:32,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728699109]
[2024-11-07 16:21:32,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728699109] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:32,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 16:21:32,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 16:21:32,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134462159]
[2024-11-07 16:21:32,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:32,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 16:21:32,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:32,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 16:21:32,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-07 16:21:32,245 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. 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)
[2024-11-07 16:21:32,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:32,268 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions.
[2024-11-07 16:21:32,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 16:21:32,271 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
[2024-11-07 16:21:32,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:32,271 INFO L225 Difference]: With dead ends: 46
[2024-11-07 16:21:32,271 INFO L226 Difference]: Without dead ends: 46
[2024-11-07 16:21:32,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-07 16:21:32,272 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:32,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 66 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 16:21:32,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2024-11-07 16:21:32,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34.
[2024-11-07 16:21:32,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:32,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions.
[2024-11-07 16:21:32,277 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 9
[2024-11-07 16:21:32,277 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:32,277 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions.
[2024-11-07 16:21:32,277 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)
[2024-11-07 16:21:32,278 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions.
[2024-11-07 16:21:32,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-07 16:21:32,278 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:32,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:32,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-07 16:21:32,278 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:32,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:32,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1182754991, now seen corresponding path program 1 times
[2024-11-07 16:21:32,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:32,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370792824]
[2024-11-07 16:21:32,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:32,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:32,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:32,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370792824]
[2024-11-07 16:21:32,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370792824] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:32,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 16:21:32,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 16:21:32,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822054064]
[2024-11-07 16:21:32,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:32,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 16:21:32,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:32,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 16:21:32,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-07 16:21:32,363 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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)
[2024-11-07 16:21:32,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:32,425 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions.
[2024-11-07 16:21:32,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 16:21:32,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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
[2024-11-07 16:21:32,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:32,427 INFO L225 Difference]: With dead ends: 39
[2024-11-07 16:21:32,427 INFO L226 Difference]: Without dead ends: 39
[2024-11-07 16:21:32,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-07 16:21:32,428 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 24 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:32,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 37 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 16:21:32,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2024-11-07 16:21:32,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36.
[2024-11-07 16:21:32,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:32,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions.
[2024-11-07 16:21:32,433 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 9
[2024-11-07 16:21:32,434 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:32,434 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions.
[2024-11-07 16:21:32,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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)
[2024-11-07 16:21:32,437 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions.
[2024-11-07 16:21:32,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-07 16:21:32,437 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:32,437 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:32,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-07 16:21:32,437 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:32,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:32,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1989300973, now seen corresponding path program 1 times
[2024-11-07 16:21:32,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:32,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607753299]
[2024-11-07 16:21:32,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:32,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:32,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:32,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:32,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607753299]
[2024-11-07 16:21:32,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607753299] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:32,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 16:21:32,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 16:21:32,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411772725]
[2024-11-07 16:21:32,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:32,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 16:21:32,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 16:21:32,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-07 16:21:32,684 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:32,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:32,779 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions.
[2024-11-07 16:21:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-07 16:21:32,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-11-07 16:21:32,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:32,780 INFO L225 Difference]: With dead ends: 39
[2024-11-07 16:21:32,782 INFO L226 Difference]: Without dead ends: 39
[2024-11-07 16:21:32,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-07 16:21:32,783 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 33 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:32,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 35 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 16:21:32,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2024-11-07 16:21:32,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37.
[2024-11-07 16:21:32,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:32,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions.
[2024-11-07 16:21:32,788 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 10
[2024-11-07 16:21:32,788 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:32,788 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions.
[2024-11-07 16:21:32,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:32,789 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions.
[2024-11-07 16:21:32,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-07 16:21:32,789 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:32,789 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:32,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-07 16:21:32,789 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:32,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:32,789 INFO L85 PathProgramCache]: Analyzing trace with hash 2076073376, now seen corresponding path program 1 times
[2024-11-07 16:21:32,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:32,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333990703]
[2024-11-07 16:21:32,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:32,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:32,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:32,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:32,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333990703]
[2024-11-07 16:21:32,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333990703] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:32,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 16:21:32,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 16:21:32,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480594848]
[2024-11-07 16:21:32,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:32,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 16:21:32,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:32,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 16:21:32,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-07 16:21:32,872 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:32,915 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions.
[2024-11-07 16:21:32,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 16:21:32,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-11-07 16:21:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:32,916 INFO L225 Difference]: With dead ends: 45
[2024-11-07 16:21:32,916 INFO L226 Difference]: Without dead ends: 45
[2024-11-07 16:21:32,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-07 16:21:32,917 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 33 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:32,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 34 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 16:21:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2024-11-07 16:21:32,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44.
[2024-11-07 16:21:32,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 43 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:32,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions.
[2024-11-07 16:21:32,924 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 11
[2024-11-07 16:21:32,924 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:32,924 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions.
[2024-11-07 16:21:32,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:32,924 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions.
[2024-11-07 16:21:32,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-07 16:21:32,924 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:32,924 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:32,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-07 16:21:32,924 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:32,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:32,925 INFO L85 PathProgramCache]: Analyzing trace with hash -66235978, now seen corresponding path program 1 times
[2024-11-07 16:21:32,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:32,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037708993]
[2024-11-07 16:21:32,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:32,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:32,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:32,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:32,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037708993]
[2024-11-07 16:21:32,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037708993] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:32,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 16:21:32,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 16:21:32,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679771815]
[2024-11-07 16:21:32,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:32,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 16:21:32,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:32,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 16:21:32,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-07 16:21:32,977 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:33,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:33,011 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions.
[2024-11-07 16:21:33,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 16:21:33,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2024-11-07 16:21:33,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:33,012 INFO L225 Difference]: With dead ends: 45
[2024-11-07 16:21:33,012 INFO L226 Difference]: Without dead ends: 45
[2024-11-07 16:21:33,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-07 16:21:33,013 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 28 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:33,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 42 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 16:21:33,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2024-11-07 16:21:33,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44.
[2024-11-07 16:21:33,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:33,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions.
[2024-11-07 16:21:33,016 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 12
[2024-11-07 16:21:33,016 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:33,016 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions.
[2024-11-07 16:21:33,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:33,016 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions.
[2024-11-07 16:21:33,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-07 16:21:33,017 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:33,017 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:33,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-07 16:21:33,017 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:33,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:33,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1848753290, now seen corresponding path program 1 times
[2024-11-07 16:21:33,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:33,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823973309]
[2024-11-07 16:21:33,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:33,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:33,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:33,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:33,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823973309]
[2024-11-07 16:21:33,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823973309] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 16:21:33,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120363055]
[2024-11-07 16:21:33,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:33,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 16:21:33,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 16:21:33,146 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)
[2024-11-07 16:21:33,148 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
[2024-11-07 16:21:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:33,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-07 16:21:33,205 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 16:21:33,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:33,321 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 16:21:33,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120363055] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:33,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 16:21:33,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9
[2024-11-07 16:21:33,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857476974]
[2024-11-07 16:21:33,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:33,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 16:21:33,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:33,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 16:21:33,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90
[2024-11-07 16:21:33,323 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:33,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:33,388 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions.
[2024-11-07 16:21:33,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-07 16:21:33,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2024-11-07 16:21:33,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:33,389 INFO L225 Difference]: With dead ends: 45
[2024-11-07 16:21:33,389 INFO L226 Difference]: Without dead ends: 45
[2024-11-07 16:21:33,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110
[2024-11-07 16:21:33,390 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:33,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 35 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 16:21:33,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2024-11-07 16:21:33,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43.
[2024-11-07 16:21:33,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 38 states have (on average 1.263157894736842) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:33,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions.
[2024-11-07 16:21:33,393 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 14
[2024-11-07 16:21:33,393 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:33,395 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions.
[2024-11-07 16:21:33,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:33,395 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions.
[2024-11-07 16:21:33,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-07 16:21:33,395 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:33,395 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:33,413 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
[2024-11-07 16:21:33,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-07 16:21:33,596 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:33,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:33,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1810540493, now seen corresponding path program 1 times
[2024-11-07 16:21:33,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:33,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882137749]
[2024-11-07 16:21:33,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:33,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:33,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:33,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882137749]
[2024-11-07 16:21:33,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882137749] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 16:21:33,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667210897]
[2024-11-07 16:21:33,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:33,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 16:21:33,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 16:21:33,665 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)
[2024-11-07 16:21:33,667 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
[2024-11-07 16:21:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:33,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-07 16:21:33,718 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 16:21:33,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:33,789 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 16:21:33,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667210897] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:33,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 16:21:33,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7
[2024-11-07 16:21:33,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45889407]
[2024-11-07 16:21:33,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:33,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 16:21:33,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:33,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 16:21:33,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-07 16:21:33,791 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:33,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:33,833 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions.
[2024-11-07 16:21:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-07 16:21:33,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2024-11-07 16:21:33,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:33,834 INFO L225 Difference]: With dead ends: 53
[2024-11-07 16:21:33,834 INFO L226 Difference]: Without dead ends: 53
[2024-11-07 16:21:33,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-07 16:21:33,835 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:33,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 65 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 16:21:33,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-07 16:21:33,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2024-11-07 16:21:33,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 52 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:33,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions.
[2024-11-07 16:21:33,838 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 15
[2024-11-07 16:21:33,838 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:33,838 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions.
[2024-11-07 16:21:33,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:33,838 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions.
[2024-11-07 16:21:33,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-07 16:21:33,838 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:33,838 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:33,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-07 16:21:34,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 16:21:34,043 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:34,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:34,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1897620789, now seen corresponding path program 1 times
[2024-11-07 16:21:34,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:34,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67168405]
[2024-11-07 16:21:34,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:34,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:34,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:34,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:34,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67168405]
[2024-11-07 16:21:34,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67168405] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 16:21:34,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414215838]
[2024-11-07 16:21:34,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:34,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 16:21:34,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 16:21:34,107 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)
[2024-11-07 16:21:34,109 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
[2024-11-07 16:21:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:34,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-07 16:21:34,156 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 16:21:34,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:34,213 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-07 16:21:34,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414215838] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:34,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-07 16:21:34,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9
[2024-11-07 16:21:34,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619818383]
[2024-11-07 16:21:34,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:34,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 16:21:34,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:34,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 16:21:34,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-07 16:21:34,214 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:34,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:34,264 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions.
[2024-11-07 16:21:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-07 16:21:34,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2024-11-07 16:21:34,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:34,265 INFO L225 Difference]: With dead ends: 65
[2024-11-07 16:21:34,265 INFO L226 Difference]: Without dead ends: 65
[2024-11-07 16:21:34,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2024-11-07 16:21:34,266 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 18 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:34,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 65 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 16:21:34,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2024-11-07 16:21:34,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53.
[2024-11-07 16:21:34,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 52 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions.
[2024-11-07 16:21:34,273 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 15
[2024-11-07 16:21:34,273 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:34,274 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions.
[2024-11-07 16:21:34,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:34,274 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions.
[2024-11-07 16:21:34,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-07 16:21:34,274 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:34,274 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:34,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-07 16:21:34,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 16:21:34,476 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:34,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:34,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1476777172, now seen corresponding path program 1 times
[2024-11-07 16:21:34,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:34,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974945026]
[2024-11-07 16:21:34,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:34,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:34,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:34,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974945026]
[2024-11-07 16:21:34,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974945026] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 16:21:34,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625516568]
[2024-11-07 16:21:34,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:34,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 16:21:34,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 16:21:34,771 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)
[2024-11-07 16:21:34,773 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
[2024-11-07 16:21:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:34,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-07 16:21:34,825 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 16:21:34,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9
[2024-11-07 16:21:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:35,208 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 16:21:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:35,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625516568] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 16:21:35,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 16:21:35,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22
[2024-11-07 16:21:35,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506253762]
[2024-11-07 16:21:35,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 16:21:35,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-07 16:21:35,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:35,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-07 16:21:35,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506
[2024-11-07 16:21:35,498 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 23 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 23 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:35,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:35,798 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions.
[2024-11-07 16:21:35,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-07 16:21:35,798 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 23 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2024-11-07 16:21:35,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:35,799 INFO L225 Difference]: With dead ends: 54
[2024-11-07 16:21:35,799 INFO L226 Difference]: Without dead ends: 54
[2024-11-07 16:21:35,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756
[2024-11-07 16:21:35,800 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 83 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:35,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 116 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-07 16:21:35,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2024-11-07 16:21:35,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50.
[2024-11-07 16:21:35,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 49 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:35,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions.
[2024-11-07 16:21:35,803 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 15
[2024-11-07 16:21:35,803 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:35,803 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions.
[2024-11-07 16:21:35,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 23 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:35,803 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions.
[2024-11-07 16:21:35,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-07 16:21:35,804 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:35,804 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:35,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-07 16:21:36,010 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,SelfDestructingSolverStorable12
[2024-11-07 16:21:36,011 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:36,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:36,011 INFO L85 PathProgramCache]: Analyzing trace with hash -292181629, now seen corresponding path program 1 times
[2024-11-07 16:21:36,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:36,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884518027]
[2024-11-07 16:21:36,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:36,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:36,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-07 16:21:36,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:36,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884518027]
[2024-11-07 16:21:36,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884518027] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 16:21:36,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 16:21:36,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-07 16:21:36,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371752671]
[2024-11-07 16:21:36,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 16:21:36,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 16:21:36,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:36,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 16:21:36,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 16:21:36,084 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:36,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:36,101 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions.
[2024-11-07 16:21:36,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-07 16:21:36,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2024-11-07 16:21:36,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:36,102 INFO L225 Difference]: With dead ends: 49
[2024-11-07 16:21:36,102 INFO L226 Difference]: Without dead ends: 32
[2024-11-07 16:21:36,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 16:21:36,102 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:36,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 40 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 16:21:36,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2024-11-07 16:21:36,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2024-11-07 16:21:36,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.206896551724138) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:36,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions.
[2024-11-07 16:21:36,104 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 16
[2024-11-07 16:21:36,105 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:36,105 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions.
[2024-11-07 16:21:36,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:36,105 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions.
[2024-11-07 16:21:36,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-11-07 16:21:36,105 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:36,105 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:36,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-07 16:21:36,105 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:36,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:36,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1219047748, now seen corresponding path program 1 times
[2024-11-07 16:21:36,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:36,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885017405]
[2024-11-07 16:21:36,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:36,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:36,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:36,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885017405]
[2024-11-07 16:21:36,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885017405] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 16:21:36,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878767927]
[2024-11-07 16:21:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:36,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 16:21:36,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 16:21:36,241 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)
[2024-11-07 16:21:36,243 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
[2024-11-07 16:21:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:36,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-07 16:21:36,295 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 16:21:36,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:36,411 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 16:21:36,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20
[2024-11-07 16:21:36,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:36,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878767927] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 16:21:36,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 16:21:36,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17
[2024-11-07 16:21:36,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739668373]
[2024-11-07 16:21:36,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 16:21:36,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-07 16:21:36,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:36,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-07 16:21:36,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306
[2024-11-07 16:21:36,542 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:36,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:36,691 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions.
[2024-11-07 16:21:36,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-07 16:21:36,692 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2024-11-07 16:21:36,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:36,692 INFO L225 Difference]: With dead ends: 44
[2024-11-07 16:21:36,692 INFO L226 Difference]: Without dead ends: 44
[2024-11-07 16:21:36,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420
[2024-11-07 16:21:36,693 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 92 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:36,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 78 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 16:21:36,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2024-11-07 16:21:36,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 33.
[2024-11-07 16:21:36,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:36,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions.
[2024-11-07 16:21:36,696 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 20
[2024-11-07 16:21:36,696 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:36,696 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions.
[2024-11-07 16:21:36,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:36,696 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions.
[2024-11-07 16:21:36,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-07 16:21:36,696 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:36,696 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:36,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-07 16:21:36,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2024-11-07 16:21:36,898 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:36,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:36,898 INFO L85 PathProgramCache]: Analyzing trace with hash 2107104079, now seen corresponding path program 2 times
[2024-11-07 16:21:36,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:36,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610452809]
[2024-11-07 16:21:36,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:36,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:37,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:37,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610452809]
[2024-11-07 16:21:37,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610452809] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 16:21:37,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971809619]
[2024-11-07 16:21:37,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-07 16:21:37,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 16:21:37,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 16:21:37,014 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-07 16:21:37,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-07 16:21:37,067 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-07 16:21:37,067 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 16:21:37,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-07 16:21:37,068 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 16:21:37,149 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:37,150 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 16:21:37,210 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:37,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971809619] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 16:21:37,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 16:21:37,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13
[2024-11-07 16:21:37,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178361008]
[2024-11-07 16:21:37,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 16:21:37,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-07 16:21:37,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:37,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-07 16:21:37,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156
[2024-11-07 16:21:37,213 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:37,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:37,301 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions.
[2024-11-07 16:21:37,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-07 16:21:37,301 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 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 24
[2024-11-07 16:21:37,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:37,302 INFO L225 Difference]: With dead ends: 60
[2024-11-07 16:21:37,302 INFO L226 Difference]: Without dead ends: 42
[2024-11-07 16:21:37,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156
[2024-11-07 16:21:37,302 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 19 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:37,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 120 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 16:21:37,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2024-11-07 16:21:37,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38.
[2024-11-07 16:21:37,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:37,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions.
[2024-11-07 16:21:37,308 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 24
[2024-11-07 16:21:37,308 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:37,308 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions.
[2024-11-07 16:21:37,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions.
[2024-11-07 16:21:37,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-11-07 16:21:37,309 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 16:21:37,309 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:37,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-07 16:21:37,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-11-07 16:21:37,510 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] ===
[2024-11-07 16:21:37,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 16:21:37,510 INFO L85 PathProgramCache]: Analyzing trace with hash -69387864, now seen corresponding path program 3 times
[2024-11-07 16:21:37,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 16:21:37,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782079897]
[2024-11-07 16:21:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 16:21:37,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 16:21:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 16:21:37,716 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 16:21:37,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 16:21:37,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782079897]
[2024-11-07 16:21:37,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782079897] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-07 16:21:37,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610378232]
[2024-11-07 16:21:37,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-07 16:21:37,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 16:21:37,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 16:21:37,719 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-07 16:21:37,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-07 16:21:37,770 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2024-11-07 16:21:37,770 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-07 16:21:37,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-07 16:21:37,773 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-07 16:21:37,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9
[2024-11-07 16:21:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-11-07 16:21:38,223 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-07 16:21:38,532 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-11-07 16:21:38,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610378232] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-07 16:21:38,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-07 16:21:38,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20
[2024-11-07 16:21:38,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248815649]
[2024-11-07 16:21:38,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-07 16:21:38,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-07 16:21:38,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 16:21:38,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-07 16:21:38,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420
[2024-11-07 16:21:38,534 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:38,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 16:21:38,959 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions.
[2024-11-07 16:21:38,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-11-07 16:21:38,960 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 states have internal predecessors, (73), 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 29
[2024-11-07 16:21:38,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 16:21:38,961 INFO L225 Difference]: With dead ends: 53
[2024-11-07 16:21:38,961 INFO L226 Difference]: Without dead ends: 0
[2024-11-07 16:21:38,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992
[2024-11-07 16:21:38,963 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 195 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 16:21:38,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 96 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 16:21:38,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-07 16:21:38,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-07 16:21:38,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:38,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-07 16:21:38,966 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29
[2024-11-07 16:21:38,966 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-07 16:21:38,966 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-07 16:21:38,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.65) internal successors, (73), 21 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-07 16:21:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-07 16:21:38,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-07 16:21:38,968 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 13 remaining)
[2024-11-07 16:21:38,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining)
[2024-11-07 16:21:38,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining)
[2024-11-07 16:21:38,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining)
[2024-11-07 16:21:38,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining)
[2024-11-07 16:21:38,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining)
[2024-11-07 16:21:38,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining)
[2024-11-07 16:21:38,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining)
[2024-11-07 16:21:38,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining)
[2024-11-07 16:21:38,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 13 remaining)
[2024-11-07 16:21:38,969 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 13 remaining)
[2024-11-07 16:21:38,970 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 13 remaining)
[2024-11-07 16:21:38,970 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining)
[2024-11-07 16:21:38,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-07 16:21:39,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-07 16:21:39,173 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 16:21:39,175 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 16:21:39,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:21:39 BoogieIcfgContainer
[2024-11-07 16:21:39,178 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 16:21:39,179 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 16:21:39,179 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-07 16:21:39,179 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-07 16:21:39,180 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:21:30" (3/4) ...
[2024-11-07 16:21:39,182 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-07 16:21:39,189 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-07 16:21:39,190 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-07 16:21:39,190 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2024-11-07 16:21:39,190 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-07 16:21:39,252 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-07 16:21:39,252 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-07 16:21:39,252 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 16:21:39,253 INFO L158 Benchmark]: Toolchain (without parser) took 9140.92ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 76.5MB in the beginning and 64.4MB in the end (delta: 12.1MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB.
[2024-11-07 16:21:39,253 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 16:21:39,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.94ms. Allocated memory is still 100.7MB. Free memory was 76.3MB in the beginning and 58.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-07 16:21:39,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.00ms. Allocated memory is still 100.7MB. Free memory was 58.3MB in the beginning and 56.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 16:21:39,254 INFO L158 Benchmark]: Boogie Preprocessor took 45.78ms. Allocated memory is still 100.7MB. Free memory was 56.8MB in the beginning and 55.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 16:21:39,254 INFO L158 Benchmark]: RCFGBuilder took 348.76ms. Allocated memory is still 100.7MB. Free memory was 55.4MB in the beginning and 42.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 16:21:39,255 INFO L158 Benchmark]: TraceAbstraction took 8233.50ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 42.4MB in the beginning and 68.5MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 16:21:39,255 INFO L158 Benchmark]: Witness Printer took 73.62ms. Allocated memory is still 125.8MB. Free memory was 68.5MB in the beginning and 64.4MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 16:21:39,256 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.81ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 389.94ms. Allocated memory is still 100.7MB. Free memory was 76.3MB in the beginning and 58.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 42.00ms. Allocated memory is still 100.7MB. Free memory was 58.3MB in the beginning and 56.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 45.78ms. Allocated memory is still 100.7MB. Free memory was 56.8MB in the beginning and 55.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 348.76ms. Allocated memory is still 100.7MB. Free memory was 55.4MB in the beginning and 42.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 8233.50ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 42.4MB in the beginning and 68.5MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 73.62ms. Allocated memory is still 125.8MB. Free memory was 68.5MB in the beginning and 64.4MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: -1]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 364]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 38 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 17, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 734 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 734 mSDsluCounter, 952 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 635 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1102 IncrementalHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 317 mSDtfsCounter, 1102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 318 GetRequests, 180 SyntacticMatches, 4 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=11, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 78 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 355 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 3813 SizeOfPredicates, 17 NumberOfNonLiveVariables, 439 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 28 InterpolantComputations, 13 PerfectInterpolantSequences, 51/103 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
13 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-07 16:21:39,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE