/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.seq.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-26 15:50:49,221 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-26 15:50:49,290 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-12-26 15:50:49,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-26 15:50:49,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-26 15:50:49,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-26 15:50:49,317 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-26 15:50:49,317 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-26 15:50:49,318 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-26 15:50:49,324 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-26 15:50:49,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-26 15:50:49,324 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-26 15:50:49,325 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-26 15:50:49,325 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-26 15:50:49,325 INFO L153 SettingsManager]: * Use SBE=true [2023-12-26 15:50:49,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-26 15:50:49,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-26 15:50:49,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-26 15:50:49,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-26 15:50:49,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-26 15:50:49,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-26 15:50:49,327 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-26 15:50:49,327 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-26 15:50:49,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-26 15:50:49,328 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-26 15:50:49,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-26 15:50:49,328 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-26 15:50:49,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-26 15:50:49,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-26 15:50:49,329 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-26 15:50:49,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-26 15:50:49,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 15:50:49,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-26 15:50:49,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-26 15:50:49,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-26 15:50:49,330 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-26 15:50:49,330 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-26 15:50:49,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-26 15:50:49,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-26 15:50:49,331 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-26 15:50:49,331 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-26 15:50:49,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-26 15:50:49,331 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-26 15:50:49,331 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-26 15:50:49,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-26 15:50:49,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-26 15:50:49,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-26 15:50:49,580 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-26 15:50:49,580 INFO L274 PluginConnector]: CDTParser initialized [2023-12-26 15:50:49,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.seq.c [2023-12-26 15:50:50,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-26 15:50:50,849 INFO L384 CDTParser]: Found 1 translation units. [2023-12-26 15:50:50,851 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.seq.c [2023-12-26 15:50:50,858 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84ad8345/71d61fdeef684b3bab07f7919f5c5b8b/FLAG1c615bcff [2023-12-26 15:50:50,870 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84ad8345/71d61fdeef684b3bab07f7919f5c5b8b [2023-12-26 15:50:50,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-26 15:50:50,873 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-26 15:50:50,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-26 15:50:50,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-26 15:50:50,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-26 15:50:50,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 03:50:50" (1/1) ... [2023-12-26 15:50:50,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548eee01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:50, skipping insertion in model container [2023-12-26 15:50:50,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 03:50:50" (1/1) ... [2023-12-26 15:50:50,901 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-26 15:50:51,025 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.seq.c[1297,1310] [2023-12-26 15:50:51,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 15:50:51,083 INFO L202 MainTranslator]: Completed pre-run [2023-12-26 15:50:51,094 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.seq.c[1297,1310] [2023-12-26 15:50:51,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-26 15:50:51,129 INFO L206 MainTranslator]: Completed translation [2023-12-26 15:50:51,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51 WrapperNode [2023-12-26 15:50:51,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-26 15:50:51,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-26 15:50:51,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-26 15:50:51,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-26 15:50:51,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,145 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,165 INFO L138 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2023-12-26 15:50:51,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-26 15:50:51,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-26 15:50:51,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-26 15:50:51,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-26 15:50:51,178 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,190 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,197 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2023-12-26 15:50:51,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,202 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,203 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-26 15:50:51,206 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-26 15:50:51,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-26 15:50:51,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-26 15:50:51,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (1/1) ... [2023-12-26 15:50:51,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-26 15:50:51,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-26 15:50:51,230 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) [2023-12-26 15:50:51,234 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 [2023-12-26 15:50:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-26 15:50:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-26 15:50:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-26 15:50:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-26 15:50:51,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-26 15:50:51,319 INFO L241 CfgBuilder]: Building ICFG [2023-12-26 15:50:51,321 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-26 15:50:51,533 INFO L282 CfgBuilder]: Performing block encoding [2023-12-26 15:50:51,568 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-26 15:50:51,569 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-26 15:50:51,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 03:50:51 BoogieIcfgContainer [2023-12-26 15:50:51,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-26 15:50:51,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-26 15:50:51,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-26 15:50:51,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-26 15:50:51,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 03:50:50" (1/3) ... [2023-12-26 15:50:51,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749ba094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 03:50:51, skipping insertion in model container [2023-12-26 15:50:51,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 03:50:51" (2/3) ... [2023-12-26 15:50:51,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749ba094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 03:50:51, skipping insertion in model container [2023-12-26 15:50:51,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 03:50:51" (3/3) ... [2023-12-26 15:50:51,584 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.seq.c [2023-12-26 15:50:51,598 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-26 15:50:51,598 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-26 15:50:51,631 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-26 15:50:51,635 INFO L357 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, mHoare=true, 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;@526bb01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-26 15:50:51,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-26 15:50:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 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) [2023-12-26 15:50:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-26 15:50:51,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 15:50:51,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-26 15:50:51,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 15:50:51,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 15:50:51,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-26 15:50:51,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 15:50:51,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871401717] [2023-12-26 15:50:51,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 15:50:51,655 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 [2023-12-26 15:50:51,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 15:50:51,658 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) [2023-12-26 15:50:51,664 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 [2023-12-26 15:50:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 15:50:51,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-26 15:50:51,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 15:50:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 15:50:51,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-26 15:50:51,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 15:50:51,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871401717] [2023-12-26 15:50:51,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871401717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-26 15:50:51,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-26 15:50:51,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-26 15:50:51,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465699005] [2023-12-26 15:50:51,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-26 15:50:51,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-26 15:50:51,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 15:50:51,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-26 15:50:51,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-26 15:50:51,945 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 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) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 15:50:51,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 15:50:51,999 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-26 15:50:52,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-26 15:50:52,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-12-26 15:50:52,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 15:50:52,006 INFO L225 Difference]: With dead ends: 16 [2023-12-26 15:50:52,006 INFO L226 Difference]: Without dead ends: 9 [2023-12-26 15:50:52,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-26 15:50:52,010 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-26 15:50:52,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-26 15:50:52,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-26 15:50:52,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-26 15:50:52,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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) [2023-12-26 15:50:52,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-26 15:50:52,031 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-26 15:50:52,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 15:50:52,031 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-26 15:50:52,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 15:50:52,031 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-26 15:50:52,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-26 15:50:52,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 15:50:52,032 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-26 15:50:52,035 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 [2023-12-26 15:50:52,234 WARN L477 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 [2023-12-26 15:50:52,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 15:50:52,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 15:50:52,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-26 15:50:52,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 15:50:52,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54736745] [2023-12-26 15:50:52,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-26 15:50:52,237 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 [2023-12-26 15:50:52,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 15:50:52,238 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) [2023-12-26 15:50:52,240 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 [2023-12-26 15:50:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-26 15:50:52,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-26 15:50:52,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 15:50:52,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 15:50:52,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 15:50:53,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 15:50:53,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 15:50:53,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54736745] [2023-12-26 15:50:53,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54736745] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-26 15:50:53,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 15:50:53,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-26 15:50:53,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763005736] [2023-12-26 15:50:53,115 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 15:50:53,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-26 15:50:53,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 15:50:53,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-26 15:50:53,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-26 15:50:53,117 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 15:50:53,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 15:50:53,508 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2023-12-26 15:50:53,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-26 15:50:53,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-12-26 15:50:53,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 15:50:53,509 INFO L225 Difference]: With dead ends: 17 [2023-12-26 15:50:53,509 INFO L226 Difference]: Without dead ends: 15 [2023-12-26 15:50:53,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-12-26 15:50:53,511 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-26 15:50:53,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 11 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-26 15:50:53,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-26 15:50:53,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-12-26 15:50:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 15:50:53,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-26 15:50:53,514 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2023-12-26 15:50:53,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 15:50:53,514 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-12-26 15:50:53,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 15:50:53,514 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-26 15:50:53,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-26 15:50:53,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 15:50:53,515 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2023-12-26 15:50:53,534 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 (3)] Ended with exit code 0 [2023-12-26 15:50:53,719 WARN L477 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 [2023-12-26 15:50:53,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 15:50:53,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 15:50:53,722 INFO L85 PathProgramCache]: Analyzing trace with hash -57678563, now seen corresponding path program 2 times [2023-12-26 15:50:53,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 15:50:53,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819411556] [2023-12-26 15:50:53,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-26 15:50:53,723 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 [2023-12-26 15:50:53,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 15:50:53,724 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) [2023-12-26 15:50:53,742 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 [2023-12-26 15:50:53,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-26 15:50:53,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 15:50:53,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 62 conjunts are in the unsatisfiable core [2023-12-26 15:50:53,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 15:50:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 15:50:54,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 15:50:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-26 15:50:58,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 15:50:58,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819411556] [2023-12-26 15:50:58,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819411556] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-26 15:50:58,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 15:50:58,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-26 15:50:58,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961376370] [2023-12-26 15:50:58,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 15:50:58,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-26 15:50:58,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 15:50:58,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-26 15:50:58,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-26 15:50:58,033 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 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) [2023-12-26 15:51:01,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 15:51:01,780 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2023-12-26 15:51:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-26 15:51:01,781 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 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 13 [2023-12-26 15:51:01,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 15:51:01,781 INFO L225 Difference]: With dead ends: 26 [2023-12-26 15:51:01,781 INFO L226 Difference]: Without dead ends: 24 [2023-12-26 15:51:01,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2023-12-26 15:51:01,783 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-26 15:51:01,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 19 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-26 15:51:01,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-12-26 15:51:01,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-12-26 15:51:01,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 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) [2023-12-26 15:51:01,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2023-12-26 15:51:01,799 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 13 [2023-12-26 15:51:01,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 15:51:01,800 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2023-12-26 15:51:01,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 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) [2023-12-26 15:51:01,800 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2023-12-26 15:51:01,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-26 15:51:01,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-26 15:51:01,801 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1] [2023-12-26 15:51:01,811 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 (4)] Ended with exit code 0 [2023-12-26 15:51:02,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 [2023-12-26 15:51:02,010 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-26 15:51:02,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-26 15:51:02,014 INFO L85 PathProgramCache]: Analyzing trace with hash 223328655, now seen corresponding path program 3 times [2023-12-26 15:51:02,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-26 15:51:02,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724671288] [2023-12-26 15:51:02,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-26 15:51:02,014 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 [2023-12-26 15:51:02,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-26 15:51:02,016 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2023-12-26 15:51:02,020 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 (5)] Waiting until timeout for monitored process [2023-12-26 15:51:02,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-26 15:51:02,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-26 15:51:02,113 WARN L260 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-26 15:51:02,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-26 15:51:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 5 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-26 15:51:03,243 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-26 15:51:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-26 15:51:13,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-26 15:51:13,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724671288] [2023-12-26 15:51:13,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [724671288] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-26 15:51:13,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-26 15:51:13,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-26 15:51:13,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903984686] [2023-12-26 15:51:13,862 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-26 15:51:13,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-26 15:51:13,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-26 15:51:13,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-26 15:51:13,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-26 15:51:13,868 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 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) [2023-12-26 15:51:14,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-26 15:51:14,139 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2023-12-26 15:51:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-26 15:51:14,142 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 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 22 [2023-12-26 15:51:14,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-26 15:51:14,142 INFO L225 Difference]: With dead ends: 23 [2023-12-26 15:51:14,142 INFO L226 Difference]: Without dead ends: 0 [2023-12-26 15:51:14,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-12-26 15:51:14,143 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-26 15:51:14,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-26 15:51:14,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-26 15:51:14,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-26 15:51:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-26 15:51:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-26 15:51:14,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2023-12-26 15:51:14,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-26 15:51:14,144 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-26 15:51:14,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 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) [2023-12-26 15:51:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-26 15:51:14,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-26 15:51:14,146 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-26 15:51:14,157 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 (5)] Forceful destruction successful, exit code 0 [2023-12-26 15:51:14,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 [2023-12-26 15:51:14,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-26 15:51:14,678 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-26 15:51:14,678 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 52 92) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~var_14~0#1|) (bvult |ULTIMATE.start_main_~state_6~0#1| (_ bv200 128)) (or (= |ULTIMATE.start_main_~state_6~0#1| (bvand (_ bv2535301200456458802993406410751 128) |ULTIMATE.start_main_~state_19~0#1|)) (bvult |ULTIMATE.start_main_~state_19~0#1| (_ bv100 128))) (= (_ bv2535301200456458802993406410751 128) |ULTIMATE.start_main_~mask_SORT_4~0#1|) (= (_ bv200 32) |ULTIMATE.start_main_~var_9~0#1|) (= (bvadd |ULTIMATE.start_main_~mask_SORT_8~0#1| (_ bv1 32)) (_ bv0 32)) (= (_ bv100 32) |ULTIMATE.start_main_~var_23~0#1|)) [2023-12-26 15:51:14,679 INFO L899 garLoopResultBuilder]: For program point L52-3(lines 52 92) no Hoare annotation was computed. [2023-12-26 15:51:14,679 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-26 15:51:14,679 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2023-12-26 15:51:14,679 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-12-26 15:51:14,679 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-12-26 15:51:14,679 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2023-12-26 15:51:14,681 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-12-26 15:51:14,682 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-26 15:51:14,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 03:51:14 BoogieIcfgContainer [2023-12-26 15:51:14,713 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-26 15:51:14,714 INFO L158 Benchmark]: Toolchain (without parser) took 23840.73ms. Allocated memory was 250.6MB in the beginning and 425.7MB in the end (delta: 175.1MB). Free memory was 196.9MB in the beginning and 291.0MB in the end (delta: -94.1MB). Peak memory consumption was 81.6MB. Max. memory is 8.0GB. [2023-12-26 15:51:14,714 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 250.6MB. Free memory is still 198.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-26 15:51:14,715 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.75ms. Allocated memory is still 250.6MB. Free memory was 196.7MB in the beginning and 184.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-26 15:51:14,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.77ms. Allocated memory is still 250.6MB. Free memory was 184.3MB in the beginning and 182.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-26 15:51:14,715 INFO L158 Benchmark]: Boogie Preprocessor took 39.81ms. Allocated memory is still 250.6MB. Free memory was 182.5MB in the beginning and 180.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-26 15:51:14,715 INFO L158 Benchmark]: RCFGBuilder took 363.07ms. Allocated memory is still 250.6MB. Free memory was 180.2MB in the beginning and 214.9MB in the end (delta: -34.8MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. [2023-12-26 15:51:14,715 INFO L158 Benchmark]: TraceAbstraction took 23142.32ms. Allocated memory was 250.6MB in the beginning and 425.7MB in the end (delta: 175.1MB). Free memory was 214.4MB in the beginning and 291.0MB in the end (delta: -76.6MB). Peak memory consumption was 98.0MB. Max. memory is 8.0GB. [2023-12-26 15:51:14,717 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 250.6MB. Free memory is still 198.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 254.75ms. Allocated memory is still 250.6MB. Free memory was 196.7MB in the beginning and 184.3MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.77ms. Allocated memory is still 250.6MB. Free memory was 184.3MB in the beginning and 182.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.81ms. Allocated memory is still 250.6MB. Free memory was 182.5MB in the beginning and 180.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 363.07ms. Allocated memory is still 250.6MB. Free memory was 180.2MB in the beginning and 214.9MB in the end (delta: -34.8MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. * TraceAbstraction took 23142.32ms. Allocated memory was 250.6MB in the beginning and 425.7MB in the end (delta: 175.1MB). Free memory was 214.4MB in the beginning and 291.0MB in the end (delta: -76.6MB). Peak memory consumption was 98.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.1s, OverallIterations: 4, TraceHistogramMax: 7, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 109 IncrementalHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 6 mSDtfsCounter, 109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=3, InterpolantAutomatonStates: 32, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 8 NumberOfFragments, 33 HoareAnnotationTreeSize, 1 FormulaSimplifications, 438 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FormulaSimplificationsInter, 449 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 17.0s InterpolantComputationTime, 46 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 37 QuantifiedInterpolants, 14132 SizeOfPredicates, 165 NumberOfNonLiveVariables, 372 ConjunctsInSsa, 177 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 65/148 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((((((((1 == mask_SORT_1) && (1 == var_14)) && (state_6 < 200)) && ((state_6 == (2535301200456458802993406410751 & state_19)) || (state_19 < 100))) && (2535301200456458802993406410751 == mask_SORT_4)) && (200 == var_9)) && (((mask_SORT_8 + 1) % 4294967296) == 0)) && (100 == var_23)) RESULT: Ultimate proved your program to be correct! [2023-12-26 15:51:14,745 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...