/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.circular_pointer_top_w128_d16_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 17:11:06,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 17:11:06,190 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 17:11:06,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 17:11:06,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 17:11:06,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 17:11:06,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 17:11:06,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 17:11:06,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 17:11:06,230 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 17:11:06,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 17:11:06,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 17:11:06,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 17:11:06,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 17:11:06,235 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 17:11:06,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 17:11:06,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 17:11:06,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 17:11:06,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 17:11:06,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 17:11:06,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 17:11:06,237 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 17:11:06,237 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 17:11:06,237 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 17:11:06,237 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 17:11:06,238 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 17:11:06,238 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 17:11:06,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 17:11:06,238 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 17:11:06,239 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 17:11:06,239 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 17:11:06,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 17:11:06,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 17:11:06,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 17:11:06,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 17:11:06,242 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 17:11:06,243 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 17:11:06,243 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 17:11:06,243 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 17:11:06,243 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 17:11:06,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 17:11:06,244 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 17:11:06,244 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-01 17:11:06,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 17:11:06,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 17:11:06,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 17:11:06,552 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 17:11:06,552 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 17:11:06,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c [2024-11-01 17:11:07,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 17:11:08,184 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 17:11:08,185 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c [2024-11-01 17:11:08,197 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a39cfcae/6dc2fc45c1804f24b2ab71d945c1e159/FLAG82995c096 [2024-11-01 17:11:08,510 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a39cfcae/6dc2fc45c1804f24b2ab71d945c1e159 [2024-11-01 17:11:08,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 17:11:08,513 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 17:11:08,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 17:11:08,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 17:11:08,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 17:11:08,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 05:11:08" (1/1) ... [2024-11-01 17:11:08,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f17a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:08, skipping insertion in model container [2024-11-01 17:11:08,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 05:11:08" (1/1) ... [2024-11-01 17:11:08,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 17:11:08,776 WARN L251 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.circular_pointer_top_w128_d16_e0.c[1335,1348] [2024-11-01 17:11:09,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 17:11:09,022 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 17:11:09,035 WARN L251 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.circular_pointer_top_w128_d16_e0.c[1335,1348] [2024-11-01 17:11:09,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 17:11:09,131 INFO L204 MainTranslator]: Completed translation [2024-11-01 17:11:09,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09 WrapperNode [2024-11-01 17:11:09,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 17:11:09,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 17:11:09,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 17:11:09,133 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 17:11:09,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,245 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 913 [2024-11-01 17:11:09,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 17:11:09,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 17:11:09,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 17:11:09,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 17:11:09,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,271 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,296 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]. [2024-11-01 17:11:09,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,318 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,326 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 17:11:09,350 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 17:11:09,352 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 17:11:09,352 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 17:11:09,353 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (1/1) ... [2024-11-01 17:11:09,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 17:11:09,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 17:11:09,384 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) [2024-11-01 17:11:09,385 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 [2024-11-01 17:11:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 17:11:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 17:11:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-01 17:11:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-01 17:11:09,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 17:11:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 17:11:09,597 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 17:11:09,599 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 17:11:10,394 INFO L? ?]: Removed 271 outVars from TransFormulas that were not future-live. [2024-11-01 17:11:10,395 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 17:11:10,405 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 17:11:10,406 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 17:11:10,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 05:11:10 BoogieIcfgContainer [2024-11-01 17:11:10,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 17:11:10,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 17:11:10,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 17:11:10,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 17:11:10,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 05:11:08" (1/3) ... [2024-11-01 17:11:10,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adc8232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 05:11:10, skipping insertion in model container [2024-11-01 17:11:10,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:11:09" (2/3) ... [2024-11-01 17:11:10,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adc8232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 05:11:10, skipping insertion in model container [2024-11-01 17:11:10,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 05:11:10" (3/3) ... [2024-11-01 17:11:10,414 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w128_d16_e0.c [2024-11-01 17:11:10,429 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 17:11:10,429 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 17:11:10,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 17:11:10,490 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;@7d69ce6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 17:11:10,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 17:11:10,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-01 17:11:10,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-01 17:11:10,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 17:11:10,499 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 17:11:10,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 17:11:10,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 17:11:10,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1944675641, now seen corresponding path program 1 times [2024-11-01 17:11:10,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 17:11:10,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510325132] [2024-11-01 17:11:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 17:11:10,511 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 [2024-11-01 17:11:10,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-01 17:11:10,515 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) [2024-11-01 17:11:10,535 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 [2024-11-01 17:11:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 17:11:10,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-01 17:11:10,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 17:11:11,015 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-01 17:11:11,015 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 17:11:11,051 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-01 17:11:11,052 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 17:11:11,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510325132] [2024-11-01 17:11:11,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1510325132] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-01 17:11:11,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-01 17:11:11,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-01 17:11:11,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997489326] [2024-11-01 17:11:11,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-01 17:11:11,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-01 17:11:11,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 17:11:11,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-01 17:11:11,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-01 17:11:11,084 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-01 17:11:11,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 17:11:11,124 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2024-11-01 17:11:11,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-01 17:11:11,125 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-11-01 17:11:11,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 17:11:11,130 INFO L225 Difference]: With dead ends: 35 [2024-11-01 17:11:11,130 INFO L226 Difference]: Without dead ends: 17 [2024-11-01 17:11:11,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-01 17:11:11,135 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 17:11:11,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 17:11:11,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-01 17:11:11,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-01 17:11:11,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-01 17:11:11,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-11-01 17:11:11,165 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 23 [2024-11-01 17:11:11,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 17:11:11,166 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-01 17:11:11,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-01 17:11:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-11-01 17:11:11,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-01 17:11:11,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 17:11:11,168 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 17:11:11,181 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 [2024-11-01 17:11:11,368 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 [2024-11-01 17:11:11,369 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 17:11:11,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 17:11:11,370 INFO L85 PathProgramCache]: Analyzing trace with hash 265954675, now seen corresponding path program 1 times [2024-11-01 17:11:11,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 17:11:11,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919207920] [2024-11-01 17:11:11,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 17:11:11,371 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 [2024-11-01 17:11:11,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-01 17:11:11,374 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) [2024-11-01 17:11:11,375 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 [2024-11-01 17:11:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 17:11:11,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-01 17:11:11,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 17:11:11,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-01 17:11:11,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 17:11:12,258 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-01 17:11:12,259 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 17:11:12,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919207920] [2024-11-01 17:11:12,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1919207920] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 17:11:12,259 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 17:11:12,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 17:11:12,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769717893] [2024-11-01 17:11:12,259 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 17:11:12,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 17:11:12,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 17:11:12,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 17:11:12,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 17:11:12,263 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-01 17:11:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 17:11:12,518 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-01 17:11:12,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 17:11:12,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 23 [2024-11-01 17:11:12,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 17:11:12,520 INFO L225 Difference]: With dead ends: 27 [2024-11-01 17:11:12,520 INFO L226 Difference]: Without dead ends: 25 [2024-11-01 17:11:12,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 17:11:12,522 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-01 17:11:12,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-01 17:11:12,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-01 17:11:12,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-01 17:11:12,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-01 17:11:12,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-11-01 17:11:12,533 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 23 [2024-11-01 17:11:12,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 17:11:12,534 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-11-01 17:11:12,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-01 17:11:12,535 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-11-01 17:11:12,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-01 17:11:12,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 17:11:12,537 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-01 17:11:12,550 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 [2024-11-01 17:11:12,737 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 [2024-11-01 17:11:12,739 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 17:11:12,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 17:11:12,739 INFO L85 PathProgramCache]: Analyzing trace with hash 416519459, now seen corresponding path program 1 times [2024-11-01 17:11:12,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 17:11:12,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119387632] [2024-11-01 17:11:12,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 17:11:12,740 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 [2024-11-01 17:11:12,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-01 17:11:12,744 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) [2024-11-01 17:11:12,745 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 [2024-11-01 17:11:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 17:11:13,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-01 17:11:13,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 17:11:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-01 17:11:14,368 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 17:11:17,856 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-01 17:11:17,857 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 17:11:17,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119387632] [2024-11-01 17:11:17,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1119387632] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 17:11:17,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 17:11:17,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-11-01 17:11:17,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788990393] [2024-11-01 17:11:17,858 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 17:11:17,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-01 17:11:17,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 17:11:17,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-01 17:11:17,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-01 17:11:17,860 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-01 17:11:18,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 17:11:18,451 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2024-11-01 17:11:18,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-01 17:11:18,452 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) Word has length 44 [2024-11-01 17:11:18,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 17:11:18,453 INFO L225 Difference]: With dead ends: 36 [2024-11-01 17:11:18,453 INFO L226 Difference]: Without dead ends: 34 [2024-11-01 17:11:18,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-01 17:11:18,455 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-01 17:11:18,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 65 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-01 17:11:18,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-01 17:11:18,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-01 17:11:18,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-01 17:11:18,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2024-11-01 17:11:18,467 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 44 [2024-11-01 17:11:18,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 17:11:18,468 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2024-11-01 17:11:18,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-01 17:11:18,469 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-01 17:11:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-01 17:11:18,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 17:11:18,471 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2024-11-01 17:11:18,496 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 [2024-11-01 17:11:18,671 WARN L453 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 [2024-11-01 17:11:18,672 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 17:11:18,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 17:11:18,672 INFO L85 PathProgramCache]: Analyzing trace with hash 223728499, now seen corresponding path program 2 times [2024-11-01 17:11:18,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 17:11:18,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301090537] [2024-11-01 17:11:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 17:11:18,673 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 [2024-11-01 17:11:18,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-01 17:11:18,674 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) [2024-11-01 17:11:18,675 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 [2024-11-01 17:11:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 17:11:20,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-01 17:11:20,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 17:11:23,411 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 15 proven. 64 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-01 17:11:23,412 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 17:11:27,931 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (let ((.cse1 (forall ((|v_ULTIMATE.start_main_~var_155_arg_0~0#1_18| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_151_arg_1~0#1_17| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_155_arg_0~0#1_18|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_151_arg_1~0#1_17|))))))))))) (_ bv0 8)))) (.cse2 (= (_ bv0 8) |c_ULTIMATE.start_main_~state_132~0#1|))) (let ((.cse8 (or .cse1 .cse2)) (.cse9 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_109~0#1|)) (.cse10 (not .cse2))) (let ((.cse3 (and .cse8 (or (forall ((|v_ULTIMATE.start_main_~var_115_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_112_arg_1~0#1_16| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_126_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_155_arg_0~0#1_18| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_115_arg_1~0#1_17|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_112_arg_1~0#1_16|) .cse9)))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_126_arg_1~0#1_17|))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_155_arg_0~0#1_18|)))))))) .cse10)))) (let ((.cse6 (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_13~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_12~0#1|)))))))) (.cse4 (let ((.cse7 (= |c_ULTIMATE.start_main_~state_128~0#1| (bvand |c_ULTIMATE.start_main_~state_96~0#1| |c_ULTIMATE.start_main_~mask_SORT_3~0#1|)))) (and (or (not .cse7) (and .cse8 (or (forall ((|v_ULTIMATE.start_main_~var_115_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_112_arg_1~0#1_16| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_126_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_155_arg_0~0#1_18| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_155_arg_0~0#1_18|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor (_ bv1 32) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_115_arg_1~0#1_17|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_112_arg_1~0#1_16|) .cse9)))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_126_arg_1~0#1_17|)))))))))))))))))))))) .cse10))) (or .cse3 .cse7))))) (and (or (let ((.cse0 (= ((_ extract 7 0) (bvand .cse5 (_ bv254 32))) (_ bv0 8)))) (and (or (not .cse0) (and (or .cse1 .cse2 (forall ((|v_ULTIMATE.start_main_~var_99_arg_2~0#1_16| (_ BitVec 128))) (not (= (bvand |v_ULTIMATE.start_main_~var_99_arg_2~0#1_16| |c_ULTIMATE.start_main_~mask_SORT_3~0#1|) |c_ULTIMATE.start_main_~state_128~0#1|)))) (or .cse3 (forall ((|v_ULTIMATE.start_main_~var_99_arg_2~0#1_16| (_ BitVec 128))) (= (bvand |v_ULTIMATE.start_main_~var_99_arg_2~0#1_16| |c_ULTIMATE.start_main_~mask_SORT_3~0#1|) |c_ULTIMATE.start_main_~state_128~0#1|))))) (or .cse0 .cse4))) .cse6) (or (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 (_ bv255 32)))) (not .cse6) .cse4))))))) is different from false