./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/inv_Newton-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/inv_Newton-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 11:37:31,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 11:37:32,014 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 11:37:32,020 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 11:37:32,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 11:37:32,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 11:37:32,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 11:37:32,047 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 11:37:32,047 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 11:37:32,047 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 11:37:32,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 11:37:32,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 11:37:32,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 11:37:32,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 11:37:32,052 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 11:37:32,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:37:32,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 11:37:32,053 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 11:37:32,053 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/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 -> 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12 [2025-03-03 11:37:32,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 11:37:32,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 11:37:32,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 11:37:32,251 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 11:37:32,251 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 11:37:32,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_Newton-2.c [2025-03-03 11:37:33,415 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1bedaf7/a0099e1a1ae14f1cb82ea2a30dd7efbb/FLAGaa3ebdc8b [2025-03-03 11:37:33,670 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 11:37:33,671 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c [2025-03-03 11:37:33,678 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1bedaf7/a0099e1a1ae14f1cb82ea2a30dd7efbb/FLAGaa3ebdc8b [2025-03-03 11:37:33,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1bedaf7/a0099e1a1ae14f1cb82ea2a30dd7efbb [2025-03-03 11:37:33,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 11:37:33,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 11:37:33,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 11:37:33,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 11:37:34,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 11:37:34,001 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:37:33" (1/1) ... [2025-03-03 11:37:34,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ea9a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34, skipping insertion in model container [2025-03-03 11:37:34,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:37:33" (1/1) ... [2025-03-03 11:37:34,015 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 11:37:34,112 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860] [2025-03-03 11:37:34,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:37:34,137 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 11:37:34,145 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860] [2025-03-03 11:37:34,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:37:34,166 INFO L204 MainTranslator]: Completed translation [2025-03-03 11:37:34,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34 WrapperNode [2025-03-03 11:37:34,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 11:37:34,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 11:37:34,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 11:37:34,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 11:37:34,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,195 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2025-03-03 11:37:34,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 11:37:34,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 11:37:34,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 11:37:34,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 11:37:34,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,204 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,213 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 3, 2]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 2, 1]. [2025-03-03 11:37:34,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,220 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,224 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 11:37:34,230 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 11:37:34,230 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 11:37:34,230 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 11:37:34,231 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (1/1) ... [2025-03-03 11:37:34,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:37:34,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 11:37:34,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 11:37:34,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 11:37:34,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 11:37:34,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-03 11:37:34,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 11:37:34,347 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 11:37:34,348 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 11:37:34,473 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L35: call ULTIMATE.dealloc(inv_~#A_u~0#1.base, inv_~#A_u~0#1.offset);havoc inv_~#A_u~0#1.base, inv_~#A_u~0#1.offset;call ULTIMATE.dealloc(inv_~#xi_u~0#1.base, inv_~#xi_u~0#1.offset);havoc inv_~#xi_u~0#1.base, inv_~#xi_u~0#1.offset; [2025-03-03 11:37:34,484 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-03-03 11:37:34,484 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 11:37:34,498 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 11:37:34,501 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 11:37:34,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:37:34 BoogieIcfgContainer [2025-03-03 11:37:34,502 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 11:37:34,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 11:37:34,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 11:37:34,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 11:37:34,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 11:37:33" (1/3) ... [2025-03-03 11:37:34,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b33d100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:37:34, skipping insertion in model container [2025-03-03 11:37:34,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:34" (2/3) ... [2025-03-03 11:37:34,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b33d100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:37:34, skipping insertion in model container [2025-03-03 11:37:34,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:37:34" (3/3) ... [2025-03-03 11:37:34,510 INFO L128 eAbstractionObserver]: Analyzing ICFG inv_Newton-2.c [2025-03-03 11:37:34,521 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 11:37:34,523 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG inv_Newton-2.c that has 1 procedures, 21 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2025-03-03 11:37:34,566 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 11:37:34,576 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;@587298d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 11:37:34,576 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-03 11:37:34,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 17 states have (on average 1.588235294117647) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:37:34,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-03 11:37:34,583 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:37:34,584 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-03 11:37:34,584 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-03-03 11:37:34,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:37:34,589 INFO L85 PathProgramCache]: Analyzing trace with hash 57225498, now seen corresponding path program 1 times [2025-03-03 11:37:34,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:37:34,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76305841] [2025-03-03 11:37:34,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:37:34,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:37:34,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-03 11:37:34,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-03 11:37:34,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:37:34,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:37:34,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 11:37:34,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 11:37:34,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76305841] [2025-03-03 11:37:34,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76305841] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:37:34,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:37:34,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 11:37:34,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681449457] [2025-03-03 11:37:34,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:37:34,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 11:37:34,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 11:37:34,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 11:37:34,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 11:37:34,701 INFO L87 Difference]: Start difference. First operand has 21 states, 17 states have (on average 1.588235294117647) internal successors, (27), 20 states have internal predecessors, (27), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:37:34,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:37:34,709 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2025-03-03 11:37:34,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 11:37:34,711 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2025-03-03 11:37:34,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:37:34,715 INFO L225 Difference]: With dead ends: 24 [2025-03-03 11:37:34,715 INFO L226 Difference]: Without dead ends: 6 [2025-03-03 11:37:34,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 11:37:34,722 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 11:37:34,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 11:37:34,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2025-03-03 11:37:34,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2025-03-03 11:37:34,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:37:34,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2025-03-03 11:37:34,744 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2025-03-03 11:37:34,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:37:34,744 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2025-03-03 11:37:34,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:37:34,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2025-03-03 11:37:34,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-03 11:37:34,745 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:37:34,745 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-03 11:37:34,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 11:37:34,745 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-03-03 11:37:34,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:37:34,746 INFO L85 PathProgramCache]: Analyzing trace with hash 57226459, now seen corresponding path program 1 times [2025-03-03 11:37:34,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 11:37:34,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552873791] [2025-03-03 11:37:34,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:37:34,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 11:37:34,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-03 11:37:34,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-03 11:37:34,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:37:34,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 11:37:34,765 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 11:37:34,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-03 11:37:34,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-03 11:37:34,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:37:34,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 11:37:34,786 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 11:37:34,787 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 11:37:34,788 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 3 remaining) [2025-03-03 11:37:34,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2025-03-03 11:37:34,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 3 remaining) [2025-03-03 11:37:34,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 11:37:34,793 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-03 11:37:34,801 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 11:37:34,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 11:37:34 BoogieIcfgContainer [2025-03-03 11:37:34,805 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 11:37:34,806 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 11:37:34,806 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 11:37:34,806 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 11:37:34,807 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:37:34" (3/4) ... [2025-03-03 11:37:34,809 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 11:37:34,809 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 11:37:34,811 INFO L158 Benchmark]: Toolchain (without parser) took 814.29ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 65.8MB in the end (delta: 46.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-03 11:37:34,811 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:37:34,811 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.32ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 100.7MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:37:34,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.65ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 99.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:37:34,812 INFO L158 Benchmark]: Boogie Preprocessor took 33.43ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 98.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:37:34,812 INFO L158 Benchmark]: IcfgBuilder took 272.70ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 85.4MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 11:37:34,812 INFO L158 Benchmark]: TraceAbstraction took 301.28ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 66.2MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 11:37:34,813 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 142.6MB. Free memory was 66.2MB in the beginning and 65.8MB in the end (delta: 403.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 11:37:34,815 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 201.3MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 170.32ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 100.7MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.65ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 99.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.43ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 98.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 272.70ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 85.4MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 301.28ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 66.2MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 142.6MB. Free memory was 66.2MB in the beginning and 65.8MB in the end (delta: 403.7kB). 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: 35]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 35, overapproximation of someBinaryDOUBLEComparisonOperation at line 56. Possible FailurePath: [L53] double a,r; [L55] a = __VERIFIER_nondet_double() [L56] CALL assume_abort_if_not(a >= 20. && a <= 30.) [L21] COND FALSE !(!cond) [L56] RET assume_abort_if_not(a >= 20. && a <= 30.) [L58] CALL inv(a) [L33] double xi, xsi, temp; [L34] signed int cond, exp; [L35] union double_int A_u, xi_u; - UnprovableResult [Line: 23]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-03 11:37:34,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/inv_Newton-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 11:37:36,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 11:37:36,822 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 11:37:36,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 11:37:36,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 11:37:36,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 11:37:36,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 11:37:36,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 11:37:36,849 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 11:37:36,850 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 11:37:36,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 11:37:36,850 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 11:37:36,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 11:37:36,851 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 11:37:36,851 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 11:37:36,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 11:37:36,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 11:37:36,851 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 11:37:36,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 11:37:36,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 11:37:36,852 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 11:37:36,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 11:37:36,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 11:37:36,852 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 11:37:36,852 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 11:37:36,852 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 11:37:36,852 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 11:37:36,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 11:37:36,852 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 11:37:36,852 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 11:37:36,852 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:37:36,853 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 11:37:36,853 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 11:37:36,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 11:37:36,854 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/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 -> 67155ca1e686450fca2a6f4b9f638c838555b88a3546adff9656d040c859ca12 [2025-03-03 11:37:37,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 11:37:37,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 11:37:37,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 11:37:37,134 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 11:37:37,135 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 11:37:37,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_Newton-2.c [2025-03-03 11:37:38,362 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a0a1a1f/0bea6bea337846e683b5858142333e33/FLAG476f8e083 [2025-03-03 11:37:38,519 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 11:37:38,520 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c [2025-03-03 11:37:38,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a0a1a1f/0bea6bea337846e683b5858142333e33/FLAG476f8e083 [2025-03-03 11:37:38,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a0a1a1f/0bea6bea337846e683b5858142333e33 [2025-03-03 11:37:38,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 11:37:38,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 11:37:38,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 11:37:38,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 11:37:38,555 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 11:37:38,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bc26ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38, skipping insertion in model container [2025-03-03 11:37:38,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 11:37:38,682 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860] [2025-03-03 11:37:38,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:37:38,714 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 11:37:38,726 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton-2.c[847,860] [2025-03-03 11:37:38,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 11:37:38,754 INFO L204 MainTranslator]: Completed translation [2025-03-03 11:37:38,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38 WrapperNode [2025-03-03 11:37:38,755 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 11:37:38,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 11:37:38,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 11:37:38,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 11:37:38,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,783 INFO L138 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2025-03-03 11:37:38,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 11:37:38,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 11:37:38,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 11:37:38,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 11:37:38,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,798 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,809 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 2, 3]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 1, 2]. [2025-03-03 11:37:38,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,817 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 11:37:38,827 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 11:37:38,827 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 11:37:38,827 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 11:37:38,828 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (1/1) ... [2025-03-03 11:37:38,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 11:37:38,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 11:37:38,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 11:37:38,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 11:37:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 11:37:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2025-03-03 11:37:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2025-03-03 11:37:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2025-03-03 11:37:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2025-03-03 11:37:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2025-03-03 11:37:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2025-03-03 11:37:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 11:37:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-03 11:37:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-03 11:37:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 11:37:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-03 11:37:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-03 11:37:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-03 11:37:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 11:37:38,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 11:37:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 11:37:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-03 11:37:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-03 11:37:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-03 11:37:38,955 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 11:37:38,956 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 11:37:43,211 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L35: call ULTIMATE.dealloc(inv_~#A_u~0#1.base, inv_~#A_u~0#1.offset);havoc inv_~#A_u~0#1.base, inv_~#A_u~0#1.offset;call ULTIMATE.dealloc(inv_~#xi_u~0#1.base, inv_~#xi_u~0#1.offset);havoc inv_~#xi_u~0#1.base, inv_~#xi_u~0#1.offset; [2025-03-03 11:37:43,219 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2025-03-03 11:37:43,219 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 11:37:43,225 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 11:37:43,225 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 11:37:43,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:37:43 BoogieIcfgContainer [2025-03-03 11:37:43,225 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 11:37:43,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 11:37:43,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 11:37:43,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 11:37:43,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 11:37:38" (1/3) ... [2025-03-03 11:37:43,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1901c1d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:37:43, skipping insertion in model container [2025-03-03 11:37:43,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:37:38" (2/3) ... [2025-03-03 11:37:43,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1901c1d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:37:43, skipping insertion in model container [2025-03-03 11:37:43,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:37:43" (3/3) ... [2025-03-03 11:37:43,234 INFO L128 eAbstractionObserver]: Analyzing ICFG inv_Newton-2.c [2025-03-03 11:37:43,244 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 11:37:43,245 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG inv_Newton-2.c that has 1 procedures, 13 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 11:37:43,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 11:37:43,289 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;@2f1a5271, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 11:37:43,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 11:37:43,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:37:43,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-03 11:37:43,297 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:37:43,298 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:37:43,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:37:43,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:37:43,302 INFO L85 PathProgramCache]: Analyzing trace with hash -516143365, now seen corresponding path program 1 times [2025-03-03 11:37:43,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:37:43,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744714914] [2025-03-03 11:37:43,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:37:43,309 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 [2025-03-03 11:37:43,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:37:43,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/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) [2025-03-03 11:37:43,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2025-03-03 11:37:43,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-03 11:37:43,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-03 11:37:43,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:37:43,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:37:43,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 11:37:43,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:37:43,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 11:37:43,425 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:37:43,425 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:37:43,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744714914] [2025-03-03 11:37:43,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744714914] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:37:43,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:37:43,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 11:37:43,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796368061] [2025-03-03 11:37:43,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:37:43,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 11:37:43,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:37:43,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 11:37:43,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 11:37:43,445 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:37:43,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:37:43,454 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2025-03-03 11:37:43,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 11:37:43,455 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 [2025-03-03 11:37:43,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:37:43,461 INFO L225 Difference]: With dead ends: 23 [2025-03-03 11:37:43,461 INFO L226 Difference]: Without dead ends: 9 [2025-03-03 11:37:43,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 11:37:43,466 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 11:37:43,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 11:37:43,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-03-03 11:37:43,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-03-03 11:37:43,482 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) [2025-03-03 11:37:43,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2025-03-03 11:37:43,485 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2025-03-03 11:37:43,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:37:43,486 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2025-03-03 11:37:43,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:37:43,486 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2025-03-03 11:37:43,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-03 11:37:43,486 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:37:43,486 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:37:43,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2025-03-03 11:37:43,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/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 [2025-03-03 11:37:43,687 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:37:43,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:37:43,688 INFO L85 PathProgramCache]: Analyzing trace with hash -487514214, now seen corresponding path program 1 times [2025-03-03 11:37:43,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:37:43,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209750043] [2025-03-03 11:37:43,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:37:43,689 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 [2025-03-03 11:37:43,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:37:43,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/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) [2025-03-03 11:37:43,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2025-03-03 11:37:43,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-03 11:37:43,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-03 11:37:43,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:37:43,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:37:43,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 11:37:43,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:37:43,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 11:37:43,848 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 11:37:43,848 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 11:37:43,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209750043] [2025-03-03 11:37:43,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209750043] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 11:37:43,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 11:37:43,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 11:37:43,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862550060] [2025-03-03 11:37:43,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 11:37:43,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 11:37:43,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 11:37:43,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 11:37:43,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 11:37:43,851 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:37:48,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-03 11:37:52,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-03 11:37:56,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-03 11:37:56,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 11:37:56,673 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2025-03-03 11:37:56,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 11:37:56,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 [2025-03-03 11:37:56,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 11:37:56,674 INFO L225 Difference]: With dead ends: 14 [2025-03-03 11:37:56,674 INFO L226 Difference]: Without dead ends: 10 [2025-03-03 11:37:56,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 11:37:56,675 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2025-03-03 11:37:56,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 3 Unknown, 0 Unchecked, 12.8s Time] [2025-03-03 11:37:56,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2025-03-03 11:37:56,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2025-03-03 11:37:56,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:37:56,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2025-03-03 11:37:56,677 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2025-03-03 11:37:56,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 11:37:56,677 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2025-03-03 11:37:56,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 11:37:56,678 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2025-03-03 11:37:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-03 11:37:56,678 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 11:37:56,678 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 11:37:56,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2025-03-03 11:37:56,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/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 [2025-03-03 11:37:56,879 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 11:37:56,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 11:37:56,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2067943402, now seen corresponding path program 1 times [2025-03-03 11:37:56,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 11:37:56,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512143727] [2025-03-03 11:37:56,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 11:37:56,880 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 [2025-03-03 11:37:56,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 11:37:56,883 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/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) [2025-03-03 11:37:56,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2025-03-03 11:37:56,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-03 11:37:57,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-03 11:37:57,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 11:37:57,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 11:37:57,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-03 11:37:57,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 11:38:06,883 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-03 11:38:15,119 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-03 11:38:23,349 WARN L286 SmtUtils]: Spent 8.23s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-03 11:38:31,503 WARN L286 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-03 11:38:39,799 WARN L286 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-03 11:38:47,949 WARN L286 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-03 11:38:56,206 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-03 11:39:04,401 WARN L286 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-03 11:39:12,639 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2025-03-03 11:39:20,904 WARN L286 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)