/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver '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' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cache_coherence_three.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 08:46:38,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 08:46:38,420 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-05 08:46:38,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 08:46:38,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 08:46:38,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 08:46:38,456 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 08:46:38,457 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 08:46:38,457 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 08:46:38,459 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 08:46:38,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 08:46:38,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 08:46:38,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 08:46:38,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 08:46:38,461 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 08:46:38,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 08:46:38,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 08:46:38,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 08:46:38,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 08:46:38,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 08:46:38,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 08:46:38,463 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 08:46:38,464 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 08:46:38,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 08:46:38,464 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 08:46:38,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 08:46:38,465 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 08:46:38,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 08:46:38,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 08:46:38,465 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 08:46:38,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 08:46:38,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 08:46:38,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 08:46:38,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 08:46:38,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 08:46:38,467 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 08:46:38,467 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 08:46:38,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 08:46:38,468 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 08:46:38,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 08:46:38,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 08:46:38,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 08:46:38,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 08:46:38,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 08:46:38,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 08:46:38,749 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 08:46:38,750 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 08:46:38,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cache_coherence_three.c [2024-11-05 08:46:40,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 08:46:40,456 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 08:46:40,456 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cache_coherence_three.c [2024-11-05 08:46:40,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1812d424/fbebb432e2854553bde7ffc870a36107/FLAG9d66858ef [2024-11-05 08:46:40,499 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1812d424/fbebb432e2854553bde7ffc870a36107 [2024-11-05 08:46:40,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 08:46:40,502 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 08:46:40,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 08:46:40,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 08:46:40,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 08:46:40,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:46:40" (1/1) ... [2024-11-05 08:46:40,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147633c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:40, skipping insertion in model container [2024-11-05 08:46:40,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:46:40" (1/1) ... [2024-11-05 08:46:40,585 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 08:46:40,797 WARN L250 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.cache_coherence_three.c[1261,1274] [2024-11-05 08:46:41,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 08:46:41,249 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 08:46:41,261 WARN L250 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.cache_coherence_three.c[1261,1274] [2024-11-05 08:46:41,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 08:46:41,439 INFO L204 MainTranslator]: Completed translation [2024-11-05 08:46:41,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41 WrapperNode [2024-11-05 08:46:41,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 08:46:41,440 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 08:46:41,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 08:46:41,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 08:46:41,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,620 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3005 [2024-11-05 08:46:41,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 08:46:41,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 08:46:41,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 08:46:41,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 08:46:41,632 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,658 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,716 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-05 08:46:41,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,770 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,825 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 08:46:41,850 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 08:46:41,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 08:46:41,851 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 08:46:41,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (1/1) ... [2024-11-05 08:46:41,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 08:46:41,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 08:46:41,885 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) [2024-11-05 08:46:41,890 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 [2024-11-05 08:46:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 08:46:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 08:46:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 08:46:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 08:46:42,402 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 08:46:42,404 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 08:46:45,079 INFO L? ?]: Removed 162 outVars from TransFormulas that were not future-live. [2024-11-05 08:46:45,079 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 08:46:45,090 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 08:46:45,091 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 08:46:45,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:46:45 BoogieIcfgContainer [2024-11-05 08:46:45,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 08:46:45,094 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 08:46:45,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 08:46:45,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 08:46:45,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:46:40" (1/3) ... [2024-11-05 08:46:45,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc700d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:46:45, skipping insertion in model container [2024-11-05 08:46:45,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:46:41" (2/3) ... [2024-11-05 08:46:45,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc700d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:46:45, skipping insertion in model container [2024-11-05 08:46:45,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:46:45" (3/3) ... [2024-11-05 08:46:45,101 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cache_coherence_three.c [2024-11-05 08:46:45,116 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 08:46:45,117 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 08:46:45,170 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 08:46:45,176 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;@205f7c77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 08:46:45,177 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 08:46:45,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 08:46:45,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-05 08:46:45,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 08:46:45,187 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-05 08:46:45,188 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 08:46:45,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 08:46:45,194 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-05 08:46:45,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 08:46:45,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214456394] [2024-11-05 08:46:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 08:46:45,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 08:46:45,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 08:46:45,206 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) [2024-11-05 08:46:45,208 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 [2024-11-05 08:46:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 08:46:45,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 82 conjuncts are in the unsatisfiable core [2024-11-05 08:46:45,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 08:46:46,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 08:46:46,548 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 08:46:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 08:46:49,199 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 08:46:49,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214456394] [2024-11-05 08:46:49,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1214456394] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 08:46:49,200 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 08:46:49,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-05 08:46:49,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010595874] [2024-11-05 08:46:49,203 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 08:46:49,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 08:46:49,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 08:46:49,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 08:46:49,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 08:46:49,230 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2024-11-05 08:46:49,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 08:46:49,428 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-05 08:46:49,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 08:46:49,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-05 08:46:49,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 08:46:49,435 INFO L225 Difference]: With dead ends: 18 [2024-11-05 08:46:49,436 INFO L226 Difference]: Without dead ends: 10 [2024-11-05 08:46:49,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-05 08:46:49,441 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-05 08:46:49,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-05 08:46:49,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-05 08:46:49,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-05 08:46:49,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 08:46:49,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-05 08:46:49,468 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-05 08:46:49,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 08:46:49,469 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-05 08:46:49,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2024-11-05 08:46:49,469 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-05 08:46:49,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-05 08:46:49,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 08:46:49,469 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-05 08:46:49,477 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 [2024-11-05 08:46:49,673 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 [2024-11-05 08:46:49,674 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 08:46:49,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 08:46:49,675 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-05 08:46:49,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 08:46:49,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637458210] [2024-11-05 08:46:49,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 08:46:49,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 08:46:49,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 08:46:49,677 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) [2024-11-05 08:46:49,678 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 [2024-11-05 08:46:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 08:46:50,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-11-05 08:46:50,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 08:46:51,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 08:46:51,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 08:47:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 08:47:03,356 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 08:47:03,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637458210] [2024-11-05 08:47:03,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [637458210] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 08:47:03,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 08:47:03,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-05 08:47:03,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400897837] [2024-11-05 08:47:03,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 08:47:03,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 08:47:03,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 08:47:03,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 08:47:03,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=39, Unknown=1, NotChecked=0, Total=56 [2024-11-05 08:47:03,361 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 08:47:05,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 08:47:05,620 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-05 08:47:05,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-05 08:47:05,621 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) Word has length 8 [2024-11-05 08:47:05,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 08:47:05,621 INFO L225 Difference]: With dead ends: 15 [2024-11-05 08:47:05,621 INFO L226 Difference]: Without dead ends: 13 [2024-11-05 08:47:05,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=35, Invalid=74, Unknown=1, NotChecked=0, Total=110 [2024-11-05 08:47:05,622 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-05 08:47:05,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 17 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-05 08:47:05,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-05 08:47:05,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-05 08:47:05,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 08:47:05,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-05 08:47:05,628 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-05 08:47:05,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 08:47:05,628 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-05 08:47:05,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 08:47:05,628 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-05 08:47:05,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-05 08:47:05,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 08:47:05,629 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-05 08:47:05,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-05 08:47:05,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 08:47:05,833 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 08:47:05,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 08:47:05,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-05 08:47:05,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 08:47:05,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696803358] [2024-11-05 08:47:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 08:47:05,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 08:47:05,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 08:47:05,837 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) [2024-11-05 08:47:05,838 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 [2024-11-05 08:47:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 08:47:08,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-11-05 08:47:08,255 INFO L278 TraceCheckSpWp]: Computing forward predicates...