./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-1.i --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/hardness-nfm22/hardness_operatoramount_amount25_file-1.i -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 a8abf789476b084329f1f50c834a50c15a5cfb99d51e9c129927fbb1f496b434 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 00:17:59,492 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 00:17:59,545 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-04 00:17:59,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 00:17:59,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 00:17:59,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 00:17:59,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 00:17:59,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 00:17:59,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 00:17:59,573 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 00:17:59,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 00:17:59,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 00:17:59,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 00:17:59,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 00:17:59,574 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 00:17:59,574 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 00:17:59,575 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 00:17:59,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 00:17:59,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 00:17:59,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 00:17:59,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 00:17:59,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 00:17:59,576 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 -> a8abf789476b084329f1f50c834a50c15a5cfb99d51e9c129927fbb1f496b434 [2025-03-04 00:17:59,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 00:17:59,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 00:17:59,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 00:17:59,794 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 00:17:59,795 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 00:17:59,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-1.i [2025-03-04 00:18:00,887 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e6780010/a42460e359d04b5d998485f36b8859c5/FLAGa863fab20 [2025-03-04 00:18:01,104 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 00:18:01,114 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-1.i [2025-03-04 00:18:01,125 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e6780010/a42460e359d04b5d998485f36b8859c5/FLAGa863fab20 [2025-03-04 00:18:01,141 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e6780010/a42460e359d04b5d998485f36b8859c5 [2025-03-04 00:18:01,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 00:18:01,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 00:18:01,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 00:18:01,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 00:18:01,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 00:18:01,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c65015c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01, skipping insertion in model container [2025-03-04 00:18:01,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 00:18:01,264 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/hardness-nfm22/hardness_operatoramount_amount25_file-1.i[914,927] [2025-03-04 00:18:01,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 00:18:01,308 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 00:18:01,317 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/hardness-nfm22/hardness_operatoramount_amount25_file-1.i[914,927] [2025-03-04 00:18:01,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 00:18:01,335 INFO L204 MainTranslator]: Completed translation [2025-03-04 00:18:01,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01 WrapperNode [2025-03-04 00:18:01,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 00:18:01,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 00:18:01,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 00:18:01,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 00:18:01,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,358 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2025-03-04 00:18:01,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 00:18:01,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 00:18:01,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 00:18:01,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 00:18:01,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,365 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,372 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]. [2025-03-04 00:18:01,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,375 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 00:18:01,378 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 00:18:01,378 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 00:18:01,378 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 00:18:01,379 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (1/1) ... [2025-03-04 00:18:01,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 00:18:01,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 00:18:01,404 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) [2025-03-04 00:18:01,406 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 [2025-03-04 00:18:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 00:18:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 00:18:01,420 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 00:18:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 00:18:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 00:18:01,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 00:18:01,467 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 00:18:01,468 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 00:18:01,606 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L86: havoc property_#t~ite11#1;havoc property_#t~bitwise10#1;havoc property_#t~short12#1; [2025-03-04 00:18:01,620 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2025-03-04 00:18:01,620 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 00:18:01,633 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 00:18:01,633 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 00:18:01,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:18:01 BoogieIcfgContainer [2025-03-04 00:18:01,633 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 00:18:01,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 00:18:01,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 00:18:01,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 00:18:01,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 12:18:01" (1/3) ... [2025-03-04 00:18:01,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d447e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:18:01, skipping insertion in model container [2025-03-04 00:18:01,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:01" (2/3) ... [2025-03-04 00:18:01,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d447e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:18:01, skipping insertion in model container [2025-03-04 00:18:01,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:18:01" (3/3) ... [2025-03-04 00:18:01,642 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-1.i [2025-03-04 00:18:01,651 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 00:18:01,652 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-1.i that has 2 procedures, 53 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-04 00:18:01,691 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 00:18:01,698 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;@63580198, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 00:18:01,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 00:18:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 42 states have internal predecessors, (59), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-04 00:18:01,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-04 00:18:01,708 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 00:18:01,708 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 00:18:01,708 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 00:18:01,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 00:18:01,711 INFO L85 PathProgramCache]: Analyzing trace with hash -268721577, now seen corresponding path program 1 times [2025-03-04 00:18:01,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 00:18:01,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009449965] [2025-03-04 00:18:01,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 00:18:01,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 00:18:01,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 00:18:01,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 00:18:01,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 00:18:01,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 00:18:01,880 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2025-03-04 00:18:01,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 00:18:01,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009449965] [2025-03-04 00:18:01,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009449965] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 00:18:01,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325813932] [2025-03-04 00:18:01,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 00:18:01,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 00:18:01,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 00:18:01,885 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 00:18:01,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 00:18:01,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 00:18:01,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 00:18:01,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 00:18:01,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 00:18:01,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 00:18:01,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 00:18:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2025-03-04 00:18:01,994 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 00:18:01,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325813932] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 00:18:01,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 00:18:01,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 00:18:01,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419855888] [2025-03-04 00:18:01,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 00:18:01,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 00:18:01,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 00:18:02,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 00:18:02,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 00:18:02,014 INFO L87 Difference]: Start difference. First operand has 53 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 42 states have internal predecessors, (59), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-04 00:18:02,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 00:18:02,034 INFO L93 Difference]: Finished difference Result 100 states and 158 transitions. [2025-03-04 00:18:02,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 00:18:02,036 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2025-03-04 00:18:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 00:18:02,040 INFO L225 Difference]: With dead ends: 100 [2025-03-04 00:18:02,040 INFO L226 Difference]: Without dead ends: 50 [2025-03-04 00:18:02,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 00:18:02,046 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 00:18:02,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 00:18:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-03-04 00:18:02,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2025-03-04 00:18:02,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 39 states have internal predecessors, (54), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-04 00:18:02,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 72 transitions. [2025-03-04 00:18:02,080 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 72 transitions. Word has length 66 [2025-03-04 00:18:02,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 00:18:02,081 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 72 transitions. [2025-03-04 00:18:02,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-04 00:18:02,082 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 72 transitions. [2025-03-04 00:18:02,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-04 00:18:02,084 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 00:18:02,084 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 00:18:02,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 00:18:02,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 00:18:02,288 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 00:18:02,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 00:18:02,289 INFO L85 PathProgramCache]: Analyzing trace with hash 990062360, now seen corresponding path program 1 times [2025-03-04 00:18:02,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 00:18:02,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626719225] [2025-03-04 00:18:02,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 00:18:02,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 00:18:02,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 00:18:02,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 00:18:02,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 00:18:02,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 00:18:02,358 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 00:18:02,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 00:18:02,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 00:18:02,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 00:18:02,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 00:18:02,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 00:18:02,423 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 00:18:02,424 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-04 00:18:02,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 00:18:02,427 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-04 00:18:02,470 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 00:18:02,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:18:02 BoogieIcfgContainer [2025-03-04 00:18:02,476 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 00:18:02,477 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 00:18:02,477 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 00:18:02,477 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 00:18:02,477 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:18:01" (3/4) ... [2025-03-04 00:18:02,479 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 00:18:02,479 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 00:18:02,481 INFO L158 Benchmark]: Toolchain (without parser) took 1333.91ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 103.2MB in the end (delta: 7.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2025-03-04 00:18:02,481 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 00:18:02,481 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.42ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 98.6MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 00:18:02,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.23ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 97.0MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 00:18:02,483 INFO L158 Benchmark]: Boogie Preprocessor took 19.04ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 94.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 00:18:02,483 INFO L158 Benchmark]: IcfgBuilder took 255.05ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 77.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 00:18:02,484 INFO L158 Benchmark]: TraceAbstraction took 841.53ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 103.3MB in the end (delta: -25.3MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2025-03-04 00:18:02,484 INFO L158 Benchmark]: Witness Printer took 3.00ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 103.2MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 00:18:02,485 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.42ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 98.6MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.23ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 97.0MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.04ms. Allocated memory is still 142.6MB. Free memory was 97.0MB in the beginning and 94.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 255.05ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 77.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 841.53ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 103.3MB in the end (delta: -25.3MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Witness Printer took 3.00ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 103.2MB in the end (delta: 41.6kB). 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: 19]: 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 38, overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryFLOATComparisonOperation at line 66, overapproximation of someBinaryFLOATComparisonOperation at line 86, overapproximation of someBinaryFLOATComparisonOperation at line 86, overapproximation of someUnaryFLOAToperation at line 55. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 5.5; [L23] float var_1_4 = 256.2; [L24] unsigned char var_1_5 = 128; [L25] unsigned char var_1_9 = 25; [L26] signed char var_1_10 = 4; [L27] unsigned char var_1_11 = 0; [L28] unsigned char var_1_12 = 1; [L29] signed char var_1_13 = -1; [L30] signed long int var_1_14 = 256; [L31] float var_1_15 = 127.2; [L32] signed char last_1_var_1_10 = 4; [L33] signed long int last_1_var_1_14 = 256; [L34] float last_1_var_1_15 = 127.2; VAL [isInitial=0, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_4=1281/5, var_1_5=128, var_1_9=25] [L90] isInitial = 1 [L91] FCALL initially() [L92] COND TRUE 1 [L93] CALL updateLastVariables() [L81] last_1_var_1_10 = var_1_10 [L82] last_1_var_1_14 = var_1_14 [L83] last_1_var_1_15 = var_1_15 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_4=1281/5, var_1_5=128, var_1_9=25] [L93] RET updateLastVariables() [L94] CALL updateVariables() [L65] var_1_4 = __VERIFIER_nondet_float() [L66] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=25] [L66] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=25] [L67] var_1_9 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128] [L68] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128] [L69] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L69] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L70] var_1_11 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L71] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L72] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L72] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L73] var_1_12 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L74] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L75] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L75] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-1, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L76] var_1_13 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_13 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L77] RET assume_abort_if_not(var_1_13 >= -127) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_13 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L78] RET assume_abort_if_not(var_1_13 <= 126) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=128, var_1_9=0] [L94] RET updateVariables() [L95] CALL step() [L38] COND FALSE !(last_1_var_1_15 < ((((25.2f) < 0 ) ? -(25.2f) : (25.2f)))) [L45] var_1_5 = var_1_9 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=256, var_1_15=636/5, var_1_1=11/2, var_1_5=0, var_1_9=0] [L47] var_1_14 = var_1_5 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=0, var_1_15=636/5, var_1_1=11/2, var_1_5=0, var_1_9=0] [L48] COND FALSE !(\read(var_1_11)) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=0, var_1_15=636/5, var_1_1=11/2, var_1_5=0, var_1_9=0] [L53] var_1_15 = var_1_4 VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=0, var_1_15=261, var_1_1=11/2, var_1_4=261, var_1_5=0, var_1_9=0] [L54] COND TRUE var_1_15 <= (- var_1_15) [L55] var_1_1 = ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=0, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=0, var_1_9=0] [L95] RET step() [L96] CALL, EXPR property() [L86] EXPR ((var_1_15 <= (- var_1_15)) ? (var_1_1 == ((float) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : ((var_1_15 > var_1_15) ? (var_1_1 == ((float) var_1_4)) : (var_1_1 == ((float) var_1_4)))) && ((last_1_var_1_15 < ((((25.2f) < 0 ) ? -(25.2f) : (25.2f)))) ? ((((4 + last_1_var_1_10) ^ last_1_var_1_14) >= last_1_var_1_10) ? (var_1_5 == ((unsigned char) 0)) : (var_1_5 == ((unsigned char) var_1_9))) : (var_1_5 == ((unsigned char) var_1_9))) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=0, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=0, var_1_9=0] [L86-L87] return (((((var_1_15 <= (- var_1_15)) ? (var_1_1 == ((float) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : ((var_1_15 > var_1_15) ? (var_1_1 == ((float) var_1_4)) : (var_1_1 == ((float) var_1_4)))) && ((last_1_var_1_15 < ((((25.2f) < 0 ) ? -(25.2f) : (25.2f)))) ? ((((4 + last_1_var_1_10) ^ last_1_var_1_14) >= last_1_var_1_10) ? (var_1_5 == ((unsigned char) 0)) : (var_1_5 == ((unsigned char) var_1_9))) : (var_1_5 == ((unsigned char) var_1_9)))) && (var_1_11 ? ((! var_1_12) ? (var_1_10 == ((signed char) var_1_13)) : 1) : 1)) && (var_1_14 == ((signed long int) var_1_5))) && (var_1_15 == ((float) var_1_4)) ; [L96] RET, EXPR property() [L96] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=0, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_14=256, last_1_var_1_15=636/5, var_1_10=4, var_1_11=0, var_1_12=1, var_1_13=-127, var_1_14=0, var_1_15=261, var_1_1=261, var_1_4=261, var_1_5=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 70 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 272/288 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 [2025-03-04 00:18:02,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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/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/hardness-nfm22/hardness_operatoramount_amount25_file-1.i -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 a8abf789476b084329f1f50c834a50c15a5cfb99d51e9c129927fbb1f496b434 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 00:18:04,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 00:18:04,262 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-04 00:18:04,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 00:18:04,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 00:18:04,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 00:18:04,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 00:18:04,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 00:18:04,288 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 00:18:04,288 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 00:18:04,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 00:18:04,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 00:18:04,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 00:18:04,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 00:18:04,289 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 00:18:04,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 00:18:04,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 00:18:04,290 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 00:18:04,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 00:18:04,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 00:18:04,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 00:18:04,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 00:18:04,290 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 00:18:04,290 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 00:18:04,290 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 00:18:04,290 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 00:18:04,291 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 00:18:04,291 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 00:18:04,291 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 00:18:04,291 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 00:18:04,291 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 00:18:04,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 00:18:04,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 00:18:04,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 00:18:04,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 00:18:04,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 00:18:04,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 00:18:04,292 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 00:18:04,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 00:18:04,292 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 00:18:04,292 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 00:18:04,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 00:18:04,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 00:18:04,293 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 00:18:04,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 00:18:04,293 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 -> a8abf789476b084329f1f50c834a50c15a5cfb99d51e9c129927fbb1f496b434 [2025-03-04 00:18:04,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 00:18:04,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 00:18:04,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 00:18:04,504 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 00:18:04,504 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 00:18:04,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-1.i [2025-03-04 00:18:05,656 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd342f7d/cf3cc55f00ad47f7b7359f6c11935464/FLAGede486386 [2025-03-04 00:18:05,844 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 00:18:05,845 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-1.i [2025-03-04 00:18:05,851 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd342f7d/cf3cc55f00ad47f7b7359f6c11935464/FLAGede486386 [2025-03-04 00:18:05,868 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd342f7d/cf3cc55f00ad47f7b7359f6c11935464 [2025-03-04 00:18:05,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 00:18:05,872 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 00:18:05,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 00:18:05,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 00:18:05,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 00:18:05,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:18:05" (1/1) ... [2025-03-04 00:18:05,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184066a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:05, skipping insertion in model container [2025-03-04 00:18:05,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:18:05" (1/1) ... [2025-03-04 00:18:05,893 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 00:18:05,997 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/hardness-nfm22/hardness_operatoramount_amount25_file-1.i[914,927] [2025-03-04 00:18:06,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 00:18:06,039 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 00:18:06,050 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/hardness-nfm22/hardness_operatoramount_amount25_file-1.i[914,927] [2025-03-04 00:18:06,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 00:18:06,074 INFO L204 MainTranslator]: Completed translation [2025-03-04 00:18:06,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06 WrapperNode [2025-03-04 00:18:06,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 00:18:06,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 00:18:06,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 00:18:06,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 00:18:06,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,088 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,105 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86 [2025-03-04 00:18:06,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 00:18:06,108 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 00:18:06,108 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 00:18:06,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 00:18:06,114 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,116 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,133 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]. [2025-03-04 00:18:06,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,141 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 00:18:06,153 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 00:18:06,153 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 00:18:06,153 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 00:18:06,154 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (1/1) ... [2025-03-04 00:18:06,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 00:18:06,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 00:18:06,177 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) [2025-03-04 00:18:06,182 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 [2025-03-04 00:18:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 00:18:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-04 00:18:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 00:18:06,198 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 00:18:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 00:18:06,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 00:18:06,255 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 00:18:06,257 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 00:18:06,403 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-03-04 00:18:06,404 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 00:18:06,410 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 00:18:06,410 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 00:18:06,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:18:06 BoogieIcfgContainer [2025-03-04 00:18:06,410 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 00:18:06,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 00:18:06,412 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 00:18:06,416 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 00:18:06,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 12:18:05" (1/3) ... [2025-03-04 00:18:06,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6ab810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:18:06, skipping insertion in model container [2025-03-04 00:18:06,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:18:06" (2/3) ... [2025-03-04 00:18:06,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6ab810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:18:06, skipping insertion in model container [2025-03-04 00:18:06,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:18:06" (3/3) ... [2025-03-04 00:18:06,417 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-1.i [2025-03-04 00:18:06,427 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 00:18:06,428 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-1.i that has 2 procedures, 40 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-04 00:18:06,459 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 00:18:06,470 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;@3006afb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 00:18:06,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 00:18:06,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-04 00:18:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-04 00:18:06,477 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 00:18:06,477 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 00:18:06,477 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 00:18:06,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 00:18:06,481 INFO L85 PathProgramCache]: Analyzing trace with hash 795853081, now seen corresponding path program 1 times [2025-03-04 00:18:06,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 00:18:06,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258236450] [2025-03-04 00:18:06,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 00:18:06,488 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 [2025-03-04 00:18:06,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-04 00:18:06,489 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) [2025-03-04 00:18:06,492 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 [2025-03-04 00:18:06,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 00:18:06,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 00:18:06,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 00:18:06,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 00:18:06,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 00:18:06,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 00:18:06,647 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 00:18:06,647 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 00:18:06,647 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 00:18:06,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258236450] [2025-03-04 00:18:06,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258236450] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 00:18:06,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 00:18:06,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 00:18:06,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469944130] [2025-03-04 00:18:06,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 00:18:06,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 00:18:06,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 00:18:06,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 00:18:06,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 00:18:06,663 INFO L87 Difference]: Start difference. First operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-04 00:18:06,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 00:18:06,675 INFO L93 Difference]: Finished difference Result 74 states and 116 transitions. [2025-03-04 00:18:06,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 00:18:06,676 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2025-03-04 00:18:06,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 00:18:06,679 INFO L225 Difference]: With dead ends: 74 [2025-03-04 00:18:06,679 INFO L226 Difference]: Without dead ends: 37 [2025-03-04 00:18:06,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 00:18:06,683 INFO L435 NwaCegarLoop]: 50 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, 50 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 [2025-03-04 00:18:06,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 00:18:06,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-03-04 00:18:06,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2025-03-04 00:18:06,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-04 00:18:06,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2025-03-04 00:18:06,708 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 64 [2025-03-04 00:18:06,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 00:18:06,708 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 50 transitions. [2025-03-04 00:18:06,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-04 00:18:06,709 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2025-03-04 00:18:06,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-04 00:18:06,710 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 00:18:06,710 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 00:18:06,717 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 [2025-03-04 00:18:06,911 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 [2025-03-04 00:18:06,912 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 00:18:06,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 00:18:06,912 INFO L85 PathProgramCache]: Analyzing trace with hash -396131814, now seen corresponding path program 1 times [2025-03-04 00:18:06,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 00:18:06,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220307036] [2025-03-04 00:18:06,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 00:18:06,913 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 [2025-03-04 00:18:06,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-04 00:18:06,915 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) [2025-03-04 00:18:06,916 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 [2025-03-04 00:18:06,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 00:18:07,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 00:18:07,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 00:18:07,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 00:18:07,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-04 00:18:07,037 INFO L279 TraceCheckSpWp]: Computing forward predicates...