./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/addsub_float_exact.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/float-benchs/addsub_float_exact.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', 'a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5'] 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/float-benchs/addsub_float_exact.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 a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 20:40:20,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 20:40:20,436 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 20:40:20,443 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 20:40:20,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 20:40:20,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 20:40:20,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 20:40:20,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 20:40:20,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 20:40:20,477 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 20:40:20,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 20:40:20,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 20:40:20,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 20:40:20,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 20:40:20,478 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 20:40:20,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 20:40:20,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 20:40:20,478 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 20:40:20,480 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 20:40:20,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 20:40:20,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 20:40:20,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 20:40:20,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 20:40:20,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 20:40:20,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 20:40:20,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:40:20,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 20:40:20,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 20:40:20,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 20:40:20,482 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 -> a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 [2024-11-06 20:40:20,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 20:40:20,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 20:40:20,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 20:40:20,803 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 20:40:20,803 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 20:40:20,805 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2024-11-06 20:40:22,082 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 20:40:22,319 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 20:40:22,321 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2024-11-06 20:40:22,327 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7c39e848c/beb2f55060cb400a8280985cac07665d/FLAG667cea7cc [2024-11-06 20:40:22,346 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7c39e848c/beb2f55060cb400a8280985cac07665d [2024-11-06 20:40:22,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 20:40:22,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 20:40:22,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 20:40:22,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 20:40:22,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 20:40:22,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17331b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22, skipping insertion in model container [2024-11-06 20:40:22,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 20:40:22,484 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/float-benchs/addsub_float_exact.c[392,405] [2024-11-06 20:40:22,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:40:22,507 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 20:40:22,517 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/float-benchs/addsub_float_exact.c[392,405] [2024-11-06 20:40:22,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:40:22,532 INFO L204 MainTranslator]: Completed translation [2024-11-06 20:40:22,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22 WrapperNode [2024-11-06 20:40:22,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 20:40:22,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 20:40:22,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 20:40:22,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 20:40:22,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,559 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2024-11-06 20:40:22,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 20:40:22,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 20:40:22,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 20:40:22,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 20:40:22,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,570 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,578 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 20:40:22,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 20:40:22,589 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 20:40:22,589 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 20:40:22,589 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 20:40:22,590 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (1/1) ... [2024-11-06 20:40:22,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:40:22,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:40:22,619 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 20:40:22,625 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 20:40:22,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 20:40:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 20:40:22,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 20:40:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 20:40:22,707 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 20:40:22,709 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 20:40:22,792 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-06 20:40:22,792 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 20:40:22,801 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 20:40:22,801 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-06 20:40:22,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:40:22 BoogieIcfgContainer [2024-11-06 20:40:22,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 20:40:22,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 20:40:22,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 20:40:22,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 20:40:22,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:40:22" (1/3) ... [2024-11-06 20:40:22,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d23c453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:40:22, skipping insertion in model container [2024-11-06 20:40:22,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:22" (2/3) ... [2024-11-06 20:40:22,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d23c453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:40:22, skipping insertion in model container [2024-11-06 20:40:22,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:40:22" (3/3) ... [2024-11-06 20:40:22,812 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2024-11-06 20:40:22,825 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 20:40:22,826 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 20:40:22,873 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 20:40:22,882 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;@2886c4bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 20:40:22,882 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 20:40:22,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) 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 20:40:22,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-06 20:40:22,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:40:22,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-06 20:40:22,893 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:40:22,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:40:22,897 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2024-11-06 20:40:22,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:40:22,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601486041] [2024-11-06 20:40:22,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:40:22,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:40:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 20:40:22,987 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-06 20:40:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 20:40:23,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-06 20:40:23,017 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-06 20:40:23,019 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 20:40:23,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 20:40:23,026 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-06 20:40:23,040 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 20:40:23,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:40:23 BoogieIcfgContainer [2024-11-06 20:40:23,044 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 20:40:23,045 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 20:40:23,045 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 20:40:23,045 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 20:40:23,045 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:40:22" (3/4) ... [2024-11-06 20:40:23,049 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-06 20:40:23,049 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 20:40:23,051 INFO L158 Benchmark]: Toolchain (without parser) took 701.27ms. Allocated memory is still 100.7MB. Free memory was 76.8MB in the beginning and 43.4MB in the end (delta: 33.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-06 20:40:23,051 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:40:23,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.41ms. Allocated memory is still 100.7MB. Free memory was 76.6MB in the beginning and 66.1MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 20:40:23,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.72ms. Allocated memory is still 100.7MB. Free memory was 66.1MB in the beginning and 65.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:40:23,053 INFO L158 Benchmark]: Boogie Preprocessor took 26.84ms. Allocated memory is still 100.7MB. Free memory was 65.0MB in the beginning and 64.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:40:23,054 INFO L158 Benchmark]: RCFGBuilder took 212.97ms. Allocated memory is still 100.7MB. Free memory was 63.9MB in the beginning and 55.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 20:40:23,055 INFO L158 Benchmark]: TraceAbstraction took 239.19ms. Allocated memory is still 100.7MB. Free memory was 55.2MB in the beginning and 43.6MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 20:40:23,055 INFO L158 Benchmark]: Witness Printer took 4.81ms. Allocated memory is still 100.7MB. Free memory was 43.6MB in the beginning and 43.4MB in the end (delta: 163.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:40:23,056 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.41ms. Allocated memory is still 100.7MB. Free memory was 76.6MB in the beginning and 66.1MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.72ms. Allocated memory is still 100.7MB. Free memory was 66.1MB in the beginning and 65.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.84ms. Allocated memory is still 100.7MB. Free memory was 65.0MB in the beginning and 64.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 212.97ms. Allocated memory is still 100.7MB. Free memory was 63.9MB in the beginning and 55.7MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 239.19ms. Allocated memory is still 100.7MB. Free memory was 55.2MB in the beginning and 43.6MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 4.81ms. Allocated memory is still 100.7MB. Free memory was 43.6MB in the beginning and 43.4MB in the end (delta: 163.0kB). 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: 6]: 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 someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e7f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L16] CALL __VERIFIER_assert(r == 2.f) [L6] COND TRUE !(cond) [L6] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=9occurred 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, 4 NumberOfCodeBlocks, 4 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 20:40:23,084 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 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/float-benchs/addsub_float_exact.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 a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 20:40:25,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 20:40:25,347 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 20:40:25,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 20:40:25,352 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 20:40:25,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 20:40:25,371 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 20:40:25,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 20:40:25,372 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 20:40:25,372 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 20:40:25,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 20:40:25,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 20:40:25,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 20:40:25,373 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 20:40:25,373 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 20:40:25,374 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 20:40:25,374 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 20:40:25,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:40:25,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 20:40:25,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 20:40:25,375 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 -> a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 [2024-11-06 20:40:25,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 20:40:25,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 20:40:25,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 20:40:25,653 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 20:40:25,654 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 20:40:25,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2024-11-06 20:40:26,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 20:40:27,190 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 20:40:27,191 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2024-11-06 20:40:27,200 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9bce10a29/add5fcbbc8fb46d89c17144e04a28462/FLAGf88d3d230 [2024-11-06 20:40:27,557 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9bce10a29/add5fcbbc8fb46d89c17144e04a28462 [2024-11-06 20:40:27,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 20:40:27,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 20:40:27,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 20:40:27,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 20:40:27,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 20:40:27,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4b86fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27, skipping insertion in model container [2024-11-06 20:40:27,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,584 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 20:40:27,708 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/float-benchs/addsub_float_exact.c[392,405] [2024-11-06 20:40:27,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:40:27,734 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 20:40:27,745 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/float-benchs/addsub_float_exact.c[392,405] [2024-11-06 20:40:27,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:40:27,764 INFO L204 MainTranslator]: Completed translation [2024-11-06 20:40:27,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27 WrapperNode [2024-11-06 20:40:27,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 20:40:27,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 20:40:27,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 20:40:27,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 20:40:27,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,781 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,795 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2024-11-06 20:40:27,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 20:40:27,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 20:40:27,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 20:40:27,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 20:40:27,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,816 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 20:40:27,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 20:40:27,839 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 20:40:27,839 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 20:40:27,839 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 20:40:27,840 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (1/1) ... [2024-11-06 20:40:27,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:40:27,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:40:27,871 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 20:40:27,874 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 20:40:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 20:40:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 20:40:27,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 20:40:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 20:40:27,959 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 20:40:27,961 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 20:40:28,172 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-06 20:40:28,172 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 20:40:28,180 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 20:40:28,181 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-06 20:40:28,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:40:28 BoogieIcfgContainer [2024-11-06 20:40:28,182 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 20:40:28,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 20:40:28,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 20:40:28,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 20:40:28,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:40:27" (1/3) ... [2024-11-06 20:40:28,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7147a410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:40:28, skipping insertion in model container [2024-11-06 20:40:28,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:40:27" (2/3) ... [2024-11-06 20:40:28,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7147a410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:40:28, skipping insertion in model container [2024-11-06 20:40:28,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:40:28" (3/3) ... [2024-11-06 20:40:28,193 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2024-11-06 20:40:28,206 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 20:40:28,207 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 20:40:28,254 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 20:40:28,263 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;@5004a328, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 20:40:28,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 20:40:28,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) 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 20:40:28,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-06 20:40:28,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:40:28,274 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-06 20:40:28,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:40:28,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:40:28,280 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2024-11-06 20:40:28,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 20:40:28,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896695] [2024-11-06 20:40:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:40:28,290 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 20:40:28,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 20:40:28,293 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 20:40:28,295 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 20:40:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:40:28,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 20:40:28,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:40:28,482 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 20:40:28,482 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:40:28,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 20:40:28,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896695] [2024-11-06 20:40:28,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:40:28,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:40:28,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:40:28,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549220435] [2024-11-06 20:40:28,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:40:28,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:40:28,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 20:40:28,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:40:28,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:40:28,508 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) 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) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:40:28,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:40:28,602 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2024-11-06 20:40:28,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:40:28,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-11-06 20:40:28,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:40:28,618 INFO L225 Difference]: With dead ends: 13 [2024-11-06 20:40:28,618 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 20:40:28,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:40:28,622 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 20:40:28,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 20:40:28,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 20:40:28,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 20:40:28,636 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 20:40:28,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 20:40:28,640 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2024-11-06 20:40:28,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:40:28,641 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 20:40:28,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:40:28,641 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 20:40:28,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 20:40:28,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 20:40:28,651 INFO L540 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)] Forceful destruction successful, exit code 0 [2024-11-06 20:40:28,844 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 20:40:28,847 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-06 20:40:28,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 20:40:28,852 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 20:40:28,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:40:28 BoogieIcfgContainer [2024-11-06 20:40:28,856 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 20:40:28,857 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 20:40:28,857 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 20:40:28,857 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 20:40:28,858 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:40:28" (3/4) ... [2024-11-06 20:40:28,859 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 20:40:28,864 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-06 20:40:28,864 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-06 20:40:28,864 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-06 20:40:28,864 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 20:40:28,916 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 20:40:28,916 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 20:40:28,917 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 20:40:28,917 INFO L158 Benchmark]: Toolchain (without parser) took 1355.06ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 51.8MB in the end (delta: 9.0MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2024-11-06 20:40:28,917 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 65.2MB in the beginning and 65.1MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:40:28,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.36ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 49.7MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 20:40:28,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.36ms. Allocated memory is still 83.9MB. Free memory was 49.7MB in the beginning and 48.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:40:28,921 INFO L158 Benchmark]: Boogie Preprocessor took 41.43ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 47.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:40:28,921 INFO L158 Benchmark]: RCFGBuilder took 343.40ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 38.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 20:40:28,921 INFO L158 Benchmark]: TraceAbstraction took 671.69ms. Allocated memory is still 83.9MB. Free memory was 38.1MB in the beginning and 56.0MB in the end (delta: -17.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:40:28,921 INFO L158 Benchmark]: Witness Printer took 59.51ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 51.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:40:28,923 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 65.2MB in the beginning and 65.1MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.36ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 49.7MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.36ms. Allocated memory is still 83.9MB. Free memory was 49.7MB in the beginning and 48.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.43ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 47.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 343.40ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 38.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 671.69ms. Allocated memory is still 83.9MB. Free memory was 38.1MB in the beginning and 56.0MB in the end (delta: -17.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.51ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 51.8MB in the end (delta: 4.2MB). 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 - PositiveResult [Line: 6]: 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 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 1 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-06 20:40:28,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE