./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/digits_for.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/floats-esbmc-regression/digits_for.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', 'ae5df297f2d3ee5d728aff1b63a3afef9bfbadb73abd56462b4581e636fe830d']
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/floats-esbmc-regression/digits_for.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 ae5df297f2d3ee5d728aff1b63a3afef9bfbadb73abd56462b4581e636fe830d
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-06 20:49:36,136 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-06 20:49:36,193 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-06 20:49:36,197 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 20:49:36,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 20:49:36,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 20:49:36,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 20:49:36,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 20:49:36,220 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 20:49:36,220 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-06 20:49:36,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 20:49:36,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 20:49:36,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 20:49:36,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-06 20:49:36,221 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-06 20:49:36,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 20:49:36,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-06 20:49:36,222 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-06 20:49:36,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-06 20:49:36,222 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-06 20:49:36,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-06 20:49:36,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 20:49:36,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 20:49:36,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 20:49:36,222 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-06 20:49:36,223 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-06 20:49:36,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-06 20:49:36,223 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-06 20:49:36,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 20:49:36,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-06 20:49:36,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 20:49:36,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-06 20:49:36,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:49:36,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 20:49:36,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 20:49:36,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 20:49:36,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-06 20:49:36,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-06 20:49:36,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 20:49:36,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 20:49:36,225 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 20:49:36,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 20:49:36,225 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 -> ae5df297f2d3ee5d728aff1b63a3afef9bfbadb73abd56462b4581e636fe830d
[2024-11-06 20:49:36,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 20:49:36,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 20:49:36,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 20:49:36,454 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-06 20:49:36,454 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-06 20:49:36,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/digits_for.c
[2024-11-06 20:49:37,532 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-06 20:49:37,710 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-06 20:49:37,712 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/digits_for.c
[2024-11-06 20:49:37,717 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b833aace/cd7030f26de445d392410f3b91c461a4/FLAG1af69e6fc
[2024-11-06 20:49:38,101 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b833aace/cd7030f26de445d392410f3b91c461a4
[2024-11-06 20:49:38,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 20:49:38,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-06 20:49:38,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 20:49:38,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 20:49:38,108 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 20:49:38,109 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b27b730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38, skipping insertion in model container
[2024-11-06 20:49:38,111 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,119 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-06 20:49:38,196 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/floats-esbmc-regression/digits_for.c[315,328]
[2024-11-06 20:49:38,208 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:49:38,214 INFO L200 MainTranslator]: Completed pre-run
[2024-11-06 20:49:38,221 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/floats-esbmc-regression/digits_for.c[315,328]
[2024-11-06 20:49:38,223 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:49:38,233 INFO L204 MainTranslator]: Completed translation
[2024-11-06 20:49:38,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38 WrapperNode
[2024-11-06 20:49:38,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 20:49:38,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 20:49:38,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 20:49:38,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 20:49:38,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,252 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31
[2024-11-06 20:49:38,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 20:49:38,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 20:49:38,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 20:49:38,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 20:49:38,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,258 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,264 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 20:49:38,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,267 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,268 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 20:49:38,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 20:49:38,270 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 20:49:38,270 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-06 20:49:38,272 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (1/1) ...
[2024-11-06 20:49:38,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:49:38,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 20:49:38,294 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 20:49:38,296 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 20:49:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 20:49:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 20:49:38,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 20:49:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-06 20:49:38,354 INFO L238 CfgBuilder]: Building ICFG
[2024-11-06 20:49:38,356 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 20:49:38,436 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live.
[2024-11-06 20:49:38,436 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-06 20:49:38,443 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 20:49:38,444 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 20:49:38,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:49:38 BoogieIcfgContainer
[2024-11-06 20:49:38,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 20:49:38,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 20:49:38,449 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 20:49:38,453 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-06 20:49:38,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:49:38" (1/3) ...
[2024-11-06 20:49:38,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7838b2cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:49:38, skipping insertion in model container
[2024-11-06 20:49:38,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:38" (2/3) ...
[2024-11-06 20:49:38,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7838b2cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:49:38, skipping insertion in model container
[2024-11-06 20:49:38,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:49:38" (3/3) ...
[2024-11-06 20:49:38,456 INFO L112 eAbstractionObserver]: Analyzing ICFG digits_for.c
[2024-11-06 20:49:38,466 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 20:49:38,466 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 20:49:38,501 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 20:49:38,508 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;@2097a698, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 20:49:38,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 20:49:38,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 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)
[2024-11-06 20:49:38,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-06 20:49:38,514 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:49:38,515 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-06 20:49:38,515 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:49:38,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:49:38,519 INFO L85 PathProgramCache]: Analyzing trace with hash 889605037, now seen corresponding path program 1 times
[2024-11-06 20:49:38,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-06 20:49:38,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698418010]
[2024-11-06 20:49:38,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:49:38,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-06 20:49:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-06 20:49:38,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-06 20:49:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-06 20:49:38,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-06 20:49:38,584 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-06 20:49:38,585 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-06 20:49:38,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-06 20:49:38,591 INFO L407 BasicCegarLoop]: Path program histogram: [1]
[2024-11-06 20:49:38,600 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-06 20:49:38,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:49:38 BoogieIcfgContainer
[2024-11-06 20:49:38,602 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-06 20:49:38,602 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-06 20:49:38,602 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-06 20:49:38,603 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-06 20:49:38,603 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:49:38" (3/4) ...
[2024-11-06 20:49:38,604 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-06 20:49:38,608 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-06 20:49:38,609 INFO L158 Benchmark]: Toolchain (without parser) took 504.87ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 58.9MB in the end (delta: 35.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB.
[2024-11-06 20:49:38,609 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:49:38,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 128.67ms. Allocated memory is still 117.4MB. Free memory was 94.0MB in the beginning and 83.4MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:49:38,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.28ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 82.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:49:38,610 INFO L158 Benchmark]: Boogie Preprocessor took 16.52ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:49:38,610 INFO L158 Benchmark]: RCFGBuilder took 175.10ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 71.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:49:38,610 INFO L158 Benchmark]: TraceAbstraction took 154.64ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 59.1MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-06 20:49:38,610 INFO L158 Benchmark]: Witness Printer took 5.68ms. Allocated memory is still 117.4MB. Free memory was 59.1MB in the beginning and 58.9MB in the end (delta: 257.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-06 20:49:38,611 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.63ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 128.67ms. Allocated memory is still 117.4MB. Free memory was 94.0MB in the beginning and 83.4MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 17.28ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 82.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 16.52ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 175.10ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 71.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 154.64ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 59.1MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Witness Printer took 5.68ms. Allocated memory is still 117.4MB. Free memory was 59.1MB in the beginning and 58.9MB in the end (delta: 257.0kB). There was no memory consumed. 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
- UnprovableResult [Line: 4]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of someBinaryLONGDOUBLEComparisonOperation at line 11, overapproximation of someBinaryArithmeticDOUBLEoperation at line 8.
Possible FailurePath:
[L8] long double x = 1.0/7.0;
[L9] long long res = 0;
[L11] int i = 1;
VAL [i=1, res=0]
[L11] COND FALSE !(x != 0)
VAL [i=1, res=0]
[L17] CALL __VERIFIER_assert(res == 67050)
[L4] COND TRUE !(cond)
[L4] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-06 20:49:38,632 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
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
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/floats-esbmc-regression/digits_for.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 ae5df297f2d3ee5d728aff1b63a3afef9bfbadb73abd56462b4581e636fe830d
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-06 20:49:40,417 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-06 20:49:40,484 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 20:49:40,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 20:49:40,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 20:49:40,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 20:49:40,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 20:49:40,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 20:49:40,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 20:49:40,536 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-06 20:49:40,537 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 20:49:40,537 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 20:49:40,537 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 20:49:40,537 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-06 20:49:40,538 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-06 20:49:40,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 20:49:40,539 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-06 20:49:40,539 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-06 20:49:40,539 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-06 20:49:40,539 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-06 20:49:40,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 20:49:40,540 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 20:49:40,540 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 20:49:40,540 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-06 20:49:40,540 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-06 20:49:40,540 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-06 20:49:40,540 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-06 20:49:40,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:49:40,543 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 20:49:40,543 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 20:49:40,543 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 -> ae5df297f2d3ee5d728aff1b63a3afef9bfbadb73abd56462b4581e636fe830d
[2024-11-06 20:49:40,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 20:49:40,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 20:49:40,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 20:49:40,731 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-06 20:49:40,731 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-06 20:49:40,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/digits_for.c
[2024-11-06 20:49:41,829 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-06 20:49:42,016 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-06 20:49:42,025 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/digits_for.c
[2024-11-06 20:49:42,031 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7a4eac1da/887f9a730e334aa593c8862894b2e253/FLAGb76f42842
[2024-11-06 20:49:42,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7a4eac1da/887f9a730e334aa593c8862894b2e253
[2024-11-06 20:49:42,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 20:49:42,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-06 20:49:42,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 20:49:42,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 20:49:42,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 20:49:42,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e2a0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42, skipping insertion in model container
[2024-11-06 20:49:42,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,070 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-06 20:49:42,164 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/floats-esbmc-regression/digits_for.c[315,328]
[2024-11-06 20:49:42,176 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:49:42,185 INFO L200 MainTranslator]: Completed pre-run
[2024-11-06 20:49:42,192 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/floats-esbmc-regression/digits_for.c[315,328]
[2024-11-06 20:49:42,196 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-06 20:49:42,208 INFO L204 MainTranslator]: Completed translation
[2024-11-06 20:49:42,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42 WrapperNode
[2024-11-06 20:49:42,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 20:49:42,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 20:49:42,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 20:49:42,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 20:49:42,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,222 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,233 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32
[2024-11-06 20:49:42,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 20:49:42,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 20:49:42,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 20:49:42,235 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 20:49:42,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,249 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 20:49:42,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,254 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 20:49:42,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 20:49:42,264 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 20:49:42,264 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-06 20:49:42,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (1/1) ...
[2024-11-06 20:49:42,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 20:49:42,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 20:49:42,293 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 20:49:42,298 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 20:49:42,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 20:49:42,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 20:49:42,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 20:49:42,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 20:49:42,362 INFO L238 CfgBuilder]: Building ICFG
[2024-11-06 20:49:42,364 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 20:49:46,534 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-11-06 20:49:46,534 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-06 20:49:46,539 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 20:49:46,539 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 20:49:46,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:49:46 BoogieIcfgContainer
[2024-11-06 20:49:46,540 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 20:49:46,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 20:49:46,542 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 20:49:46,545 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-06 20:49:46,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:49:42" (1/3) ...
[2024-11-06 20:49:46,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f4208d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:49:46, skipping insertion in model container
[2024-11-06 20:49:46,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:49:42" (2/3) ...
[2024-11-06 20:49:46,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f4208d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:49:46, skipping insertion in model container
[2024-11-06 20:49:46,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:49:46" (3/3) ...
[2024-11-06 20:49:46,551 INFO L112 eAbstractionObserver]: Analyzing ICFG digits_for.c
[2024-11-06 20:49:46,559 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 20:49:46,559 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 20:49:46,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 20:49:46,600 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;@3129ae1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 20:49:46,600 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 20:49:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 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)
[2024-11-06 20:49:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-06 20:49:46,606 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:49:46,606 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-06 20:49:46,606 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:49:46,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:49:46,609 INFO L85 PathProgramCache]: Analyzing trace with hash 889605037, now seen corresponding path program 1 times
[2024-11-06 20:49:46,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 20:49:46,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721979394]
[2024-11-06 20:49:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:49:46,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 20:49:46,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 20:49:46,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 20:49:46,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-11-06 20:49:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 20:49:46,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-06 20:49:46,656 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 20:49:46,740 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 20:49:46,741 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 20:49:46,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 20:49:46,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721979394]
[2024-11-06 20:49:46,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721979394] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 20:49:46,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 20:49:46,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-06 20:49:46,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695759646]
[2024-11-06 20:49:46,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 20:49:46,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-06 20:49:46,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 20:49:46,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-06 20:49:46,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 20:49:46,760 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 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) 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)
[2024-11-06 20:49:49,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 20:49:51,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 20:49:51,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 20:49:51,731 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions.
[2024-11-06 20:49:51,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-06 20:49:51,734 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
[2024-11-06 20:49:51,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 20:49:51,737 INFO L225 Difference]: With dead ends: 21
[2024-11-06 20:49:51,737 INFO L226 Difference]: Without dead ends: 9
[2024-11-06 20:49:51,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-06 20:49:51,741 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2024-11-06 20:49:51,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2024-11-06 20:49:51,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2024-11-06 20:49:51,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2024-11-06 20:49:51,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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)
[2024-11-06 20:49:51,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2024-11-06 20:49:51,758 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6
[2024-11-06 20:49:51,758 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 20:49:51,758 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2024-11-06 20:49:51,758 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)
[2024-11-06 20:49:51,759 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2024-11-06 20:49:51,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-06 20:49:51,759 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:49:51,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:49:51,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-06 20:49:51,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 20:49:51,960 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:49:51,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:49:51,960 INFO L85 PathProgramCache]: Analyzing trace with hash 265180975, now seen corresponding path program 1 times
[2024-11-06 20:49:51,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 20:49:51,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386113749]
[2024-11-06 20:49:51,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 20:49:51,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 20:49:51,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 20:49:51,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 20:49:51,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-11-06 20:49:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 20:49:52,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-06 20:49:52,400 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 20:49:53,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-06 20:49:53,647 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 20:50:01,817 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:50:05,852 WARN L851 $PredicateComparison]: unable to prove that (not (fp.eq (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 15 113) c_currentRoundingMode (_ bv10 32))) ((_ to_fp 15 113) c_currentRoundingMode (bvmul (_ bv10 32) ((_ fp.to_sbv 32) roundTowardZero |c_ULTIMATE.start_main_~x~0#1|)))) ((_ to_fp 15 113) c_currentRoundingMode (_ bv0 32)))) is different from false
[2024-11-06 20:50:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked.
[2024-11-06 20:50:07,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-06 20:50:07,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386113749]
[2024-11-06 20:50:07,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386113749] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 20:50:07,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 20:50:07,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2024-11-06 20:50:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142730474]
[2024-11-06 20:50:07,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 20:50:07,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-06 20:50:07,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-06 20:50:07,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-06 20:50:07,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=18, Unknown=1, NotChecked=8, Total=42
[2024-11-06 20:50:07,360 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 20:50:20,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 20:50:22,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 20:50:27,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 20:50:31,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-06 20:50:31,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 20:50:31,820 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions.
[2024-11-06 20:50:31,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-06 20:50:31,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-11-06 20:50:31,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 20:50:31,871 INFO L225 Difference]: With dead ends: 17
[2024-11-06 20:50:31,871 INFO L226 Difference]: Without dead ends: 13
[2024-11-06 20:50:31,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=27, Invalid=30, Unknown=3, NotChecked=12, Total=72
[2024-11-06 20:50:31,871 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time
[2024-11-06 20:50:31,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 2 Unknown, 12 Unchecked, 14.0s Time]
[2024-11-06 20:50:31,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2024-11-06 20:50:31,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2024-11-06 20:50:31,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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 20:50:31,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions.
[2024-11-06 20:50:31,875 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8
[2024-11-06 20:50:31,875 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-06 20:50:31,875 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions.
[2024-11-06 20:50:31,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 20:50:31,875 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions.
[2024-11-06 20:50:31,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-06 20:50:31,875 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-06 20:50:31,875 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1]
[2024-11-06 20:50:31,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-11-06 20:50:32,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 20:50:32,076 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 20:50:32,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 20:50:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash 833881267, now seen corresponding path program 2 times
[2024-11-06 20:50:32,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-06 20:50:32,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128221397]
[2024-11-06 20:50:32,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-06 20:50:32,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-06 20:50:32,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-06 20:50:32,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-06 20:50:32,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2024-11-06 20:50:33,306 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-06 20:50:33,306 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-06 20:50:33,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-06 20:50:33,371 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 20:50:42,537 WARN L286 SmtUtils]: Spent 7.81s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:50:46,587 WARN L873 $PredicateComparison]: unable to prove that (and (= (let ((.cse1 ((_ to_fp 15 113) c_currentRoundingMode (_ bv10 32)))) (let ((.cse0 (let ((.cse2 ((_ to_fp 15 113) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) ((_ to_fp 11 53) c_currentRoundingMode 7.0))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse1) ((_ to_fp 15 113) c_currentRoundingMode (bvmul (_ bv10 32) ((_ fp.to_sbv 32) roundTowardZero .cse2))))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) ((_ to_fp 15 113) c_currentRoundingMode (bvmul (_ bv10 32) ((_ fp.to_sbv 32) roundTowardZero .cse0)))))) |c_ULTIMATE.start_main_~x~0#1|) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true
[2024-11-06 20:50:54,818 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:51:03,403 WARN L286 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:51:07,487 WARN L873 $PredicateComparison]: unable to prove that (and (= (let ((.cse1 ((_ to_fp 15 113) c_currentRoundingMode (_ bv10 32)))) (let ((.cse0 (let ((.cse2 (let ((.cse3 ((_ to_fp 15 113) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) ((_ to_fp 11 53) c_currentRoundingMode 7.0))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 .cse1) ((_ to_fp 15 113) c_currentRoundingMode (bvmul (_ bv10 32) ((_ fp.to_sbv 32) roundTowardZero .cse3))))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse1) ((_ to_fp 15 113) c_currentRoundingMode (bvmul (_ bv10 32) ((_ fp.to_sbv 32) roundTowardZero .cse2))))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) ((_ to_fp 15 113) c_currentRoundingMode (bvmul (_ bv10 32) ((_ fp.to_sbv 32) roundTowardZero .cse0)))))) |c_ULTIMATE.start_main_~x~0#1|) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true
[2024-11-06 20:51:15,946 WARN L286 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:51:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked.
[2024-11-06 20:51:15,950 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 20:51:22,886 WARN L286 SmtUtils]: Spent 6.75s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-06 20:51:26,928 WARN L851 $PredicateComparison]: unable to prove that (not (fp.eq (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 15 113) c_currentRoundingMode (_ bv10 32))) ((_ to_fp 15 113) c_currentRoundingMode (bvmul (_ bv10 32) ((_ fp.to_sbv 32) roundTowardZero |c_ULTIMATE.start_main_~x~0#1|)))) ((_ to_fp 15 113) c_currentRoundingMode (_ bv0 32)))) is different from false