./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/ps3-ll.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
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/AutomizerReach.xml', '-i', '../sv-benchmarks/c/nla-digbench/ps3-ll.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '8db0248129cbdf684d5c34c8cefe6849dfc0aface1aea6f02e53557e5a736fa9']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/ps3-ll.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8db0248129cbdf684d5c34c8cefe6849dfc0aface1aea6f02e53557e5a736fa9
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-06 22:48:14,869 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-06 22:48:14,963 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-06 22:48:14,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 22:48:14,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 22:48:14,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 22:48:14,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 22:48:14,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 22:48:14,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 22:48:14,988 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-06 22:48:14,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 22:48:14,988 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 22:48:14,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 22:48:14,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-06 22:48:14,989 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-06 22:48:14,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 22:48:14,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-06 22:48:14,989 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-06 22:48:14,989 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-06 22:48:14,990 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-06 22:48:14,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-06 22:48:14,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 22:48:14,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 22:48:14,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 22:48:14,990 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-06 22:48:14,990 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-06 22:48:14,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-06 22:48:14,991 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-06 22:48:14,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 22:48:14,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-06 22:48:14,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 22:48:14,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-06 22:48:14,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 22:48:14,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 22:48:14,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 22:48:14,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 22:48:14,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-06 22:48:14,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-06 22:48:14,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 22:48:14,992 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 22:48:14,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 22:48:14,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 22:48:14,992 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8db0248129cbdf684d5c34c8cefe6849dfc0aface1aea6f02e53557e5a736fa9
[2024-11-06 22:48:15,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 22:48:15,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 22:48:15,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 22:48:15,255 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-06 22:48:15,255 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-06 22:48:15,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/ps3-ll.c
[2024-11-06 22:48:16,502 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-06 22:48:16,794 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-06 22:48:16,795 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench/ps3-ll.c
[2024-11-06 22:48:16,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/62a9af7df/80df32408b634e5ba26bbe3a6c67aca9/FLAG7da163c97
[2024-11-06 22:48:17,099 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/62a9af7df/80df32408b634e5ba26bbe3a6c67aca9
[2024-11-06 22:48:17,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 22:48:17,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-06 22:48:17,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 22:48:17,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 22:48:17,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 22:48:17,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ecbade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17, skipping insertion in model container
[2024-11-06 22:48:17,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,121 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-06 22:48:17,238 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench/ps3-ll.c[458,471]
[2024-11-06 22:48:17,254 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 22:48:17,259 INFO L200 MainTranslator]: Completed pre-run
[2024-11-06 22:48:17,266 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench/ps3-ll.c[458,471]
[2024-11-06 22:48:17,269 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 22:48:17,279 INFO L204 MainTranslator]: Completed translation
[2024-11-06 22:48:17,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17 WrapperNode
[2024-11-06 22:48:17,279 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 22:48:17,280 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 22:48:17,280 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 22:48:17,280 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 22:48:17,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,303 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33
[2024-11-06 22:48:17,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 22:48:17,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 22:48:17,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 22:48:17,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 22:48:17,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,326 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-06 22:48:17,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 22:48:17,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 22:48:17,333 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 22:48:17,333 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-06 22:48:17,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (1/1) ...
[2024-11-06 22:48:17,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 22:48:17,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 22:48:17,365 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)
[2024-11-06 22:48:17,369 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
[2024-11-06 22:48:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 22:48:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-06 22:48:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 22:48:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 22:48:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-06 22:48:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-06 22:48:17,457 INFO L238 CfgBuilder]: Building ICFG
[2024-11-06 22:48:17,458 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 22:48:17,567 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live.
[2024-11-06 22:48:17,567 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-06 22:48:17,577 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 22:48:17,579 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 22:48:17,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:48:17 BoogieIcfgContainer
[2024-11-06 22:48:17,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 22:48:17,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 22:48:17,582 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 22:48:17,586 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-06 22:48:17,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:48:17" (1/3) ...
[2024-11-06 22:48:17,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a35bc83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:48:17, skipping insertion in model container
[2024-11-06 22:48:17,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:48:17" (2/3) ...
[2024-11-06 22:48:17,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a35bc83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:48:17, skipping insertion in model container
[2024-11-06 22:48:17,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:48:17" (3/3) ...
[2024-11-06 22:48:17,589 INFO L112 eAbstractionObserver]: Analyzing ICFG ps3-ll.c
[2024-11-06 22:48:17,603 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 22:48:17,603 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 22:48:17,650 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 22:48:17,662 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5a1b64b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 22:48:17,663 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 22:48:17,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-06 22:48:17,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-06 22:48:17,672 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 22:48:17,673 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-06 22:48:17,674 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 22:48:17,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 22:48:17,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1818803301, now seen corresponding path program 1 times
[2024-11-06 22:48:17,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 22:48:17,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012536744]
[2024-11-06 22:48:17,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 22:48:17,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 22:48:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 22:48:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 22:48:17,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 22:48:17,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012536744]
[2024-11-06 22:48:17,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012536744] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 22:48:17,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 22:48:17,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 22:48:17,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978442780]
[2024-11-06 22:48:17,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 22:48:17,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 22:48:17,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 22:48:17,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 22:48:17,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 22:48:17,817 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 22:48:17,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 22:48:17,829 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions.
[2024-11-06 22:48:17,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-06 22:48:17,831 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-11-06 22:48:17,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 22:48:17,838 INFO L225 Difference]: With dead ends: 30
[2024-11-06 22:48:17,838 INFO L226 Difference]: Without dead ends: 12
[2024-11-06 22:48:17,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 22:48:17,845 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-06 22:48:17,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 22:48:17,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2024-11-06 22:48:17,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12.
[2024-11-06 22:48:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-06 22:48:17,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions.
[2024-11-06 22:48:17,876 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 7
[2024-11-06 22:48:17,877 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 22:48:17,877 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions.
[2024-11-06 22:48:17,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 22:48:17,878 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions.
[2024-11-06 22:48:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-06 22:48:17,879 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 22:48:17,879 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-06 22:48:17,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-06 22:48:17,881 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 22:48:17,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 22:48:17,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1811355551, now seen corresponding path program 1 times
[2024-11-06 22:48:17,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 22:48:17,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429727775]
[2024-11-06 22:48:17,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 22:48:17,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 22:48:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-06 22:48:17,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168959872]
[2024-11-06 22:48:17,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 22:48:17,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 22:48:17,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 22:48:17,913 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)
[2024-11-06 22:48:17,915 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
[2024-11-06 22:48:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 22:48:17,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-06 22:48:17,981 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 22:48:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 22:48:18,100 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 22:48:18,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 22:48:18,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429727775]
[2024-11-06 22:48:18,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-06 22:48:18,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168959872]
[2024-11-06 22:48:18,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168959872] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 22:48:18,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 22:48:18,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-06 22:48:18,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476879302]
[2024-11-06 22:48:18,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 22:48:18,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 22:48:18,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 22:48:18,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 22:48:18,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-06 22:48:18,106 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 22:48:18,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 22:48:18,171 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions.
[2024-11-06 22:48:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-06 22:48:18,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-11-06 22:48:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 22:48:18,172 INFO L225 Difference]: With dead ends: 22
[2024-11-06 22:48:18,172 INFO L226 Difference]: Without dead ends: 19
[2024-11-06 22:48:18,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-06 22:48:18,173 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-06 22:48:18,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 34 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 22:48:18,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2024-11-06 22:48:18,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2024-11-06 22:48:18,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-06 22:48:18,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions.
[2024-11-06 22:48:18,178 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 7
[2024-11-06 22:48:18,179 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 22:48:18,179 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions.
[2024-11-06 22:48:18,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-06 22:48:18,179 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions.
[2024-11-06 22:48:18,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-06 22:48:18,179 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 22:48:18,179 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 22:48:18,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-06 22:48:18,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 22:48:18,384 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 22:48:18,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 22:48:18,384 INFO L85 PathProgramCache]: Analyzing trace with hash 614685336, now seen corresponding path program 1 times
[2024-11-06 22:48:18,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 22:48:18,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395500891]
[2024-11-06 22:48:18,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 22:48:18,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 22:48:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-06 22:48:18,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1719634739]
[2024-11-06 22:48:18,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 22:48:18,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 22:48:18,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 22:48:18,411 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)
[2024-11-06 22:48:18,412 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
[2024-11-06 22:48:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 22:48:18,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-06 22:48:18,460 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 22:48:18,543 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 22:48:18,544 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 22:48:18,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-06 22:48:18,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-06 22:48:18,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395500891]
[2024-11-06 22:48:18,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-06 22:48:18,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719634739]
[2024-11-06 22:48:18,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719634739] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-06 22:48:18,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-06 22:48:18,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7
[2024-11-06 22:48:18,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825242282]
[2024-11-06 22:48:18,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 22:48:18,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-06 22:48:18,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-06 22:48:18,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-06 22:48:18,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-06 22:48:18,639 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-06 22:48:18,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 22:48:18,693 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions.
[2024-11-06 22:48:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-06 22:48:18,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14
[2024-11-06 22:48:18,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 22:48:18,694 INFO L225 Difference]: With dead ends: 19
[2024-11-06 22:48:18,694 INFO L226 Difference]: Without dead ends: 0
[2024-11-06 22:48:18,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-06 22:48:18,695 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-06 22:48:18,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 22 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 22:48:18,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-06 22:48:18,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-06 22:48:18,696 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)
[2024-11-06 22:48:18,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-06 22:48:18,696 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14
[2024-11-06 22:48:18,696 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 22:48:18,696 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-06 22:48:18,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-06 22:48:18,696 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-06 22:48:18,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-06 22:48:18,699 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-06 22:48:18,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-06 22:48:18,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 22:48:18,907 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-11-06 22:48:18,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-06 22:48:18,968 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-06 22:48:18,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:48:18 BoogieIcfgContainer
[2024-11-06 22:48:18,989 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-06 22:48:18,990 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-06 22:48:18,990 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-06 22:48:18,990 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-06 22:48:18,990 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:48:17" (3/4) ...
[2024-11-06 22:48:18,992 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-06 22:48:18,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2024-11-06 22:48:18,997 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-11-06 22:48:18,997 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-06 22:48:18,998 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-06 22:48:18,998 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-06 22:48:19,056 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-06 22:48:19,057 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-06 22:48:19,057 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-06 22:48:19,058 INFO L158 Benchmark]: Toolchain (without parser) took 1955.45ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 65.2MB in the end (delta: 28.0MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB.
[2024-11-06 22:48:19,058 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 22:48:19,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.57ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 82.1MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 22:48:19,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.54ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 22:48:19,060 INFO L158 Benchmark]: Boogie Preprocessor took 28.45ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 22:48:19,061 INFO L158 Benchmark]: RCFGBuilder took 246.38ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 70.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 22:48:19,061 INFO L158 Benchmark]: TraceAbstraction took 1407.30ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 69.7MB in the end (delta: 494.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 22:48:19,061 INFO L158 Benchmark]: Witness Printer took 67.21ms. Allocated memory is still 117.4MB. Free memory was 69.7MB in the beginning and 65.2MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 22:48:19,062 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 176.57ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 82.1MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 23.54ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 28.45ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 246.38ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 70.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 1407.30ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 69.7MB in the end (delta: 494.9kB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 67.21ms. Allocated memory is still 117.4MB. Free memory was 69.7MB in the beginning and 65.2MB in the end (delta: 4.5MB). 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: 12]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 33 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 172 SizeOfPredicates, 2 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 6/8 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
1 specifications checked. All of them hold
- InvariantResult [Line: 26]: Loop Invariant
Derived loop invariant: (((__int128) 6 * x) == (((3 * ((__int128) y * y)) + ((((__int128) y * y) * y) * 2)) + y))
- ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond)
RESULT: Ultimate proved your program to be correct!
[2024-11-06 22:48:19,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE