/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d32_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 21:00:38,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 21:00:38,345 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-12-16 21:00:38,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 21:00:38,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 21:00:38,363 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 21:00:38,364 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 21:00:38,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 21:00:38,365 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 21:00:38,366 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 21:00:38,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 21:00:38,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 21:00:38,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 21:00:38,367 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 21:00:38,368 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 21:00:38,368 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 21:00:38,368 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 21:00:38,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 21:00:38,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 21:00:38,369 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 21:00:38,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 21:00:38,372 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 21:00:38,372 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 21:00:38,372 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 21:00:38,373 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 21:00:38,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 21:00:38,373 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 21:00:38,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 21:00:38,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 21:00:38,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 21:00:38,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 21:00:38,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:00:38,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 21:00:38,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 21:00:38,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 21:00:38,375 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 21:00:38,375 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 21:00:38,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 21:00:38,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 21:00:38,375 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 21:00:38,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 21:00:38,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 21:00:38,376 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 21:00:38,376 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 21:00:38,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 21:00:38,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 21:00:38,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 21:00:38,598 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 21:00:38,599 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 21:00:38,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d32_e0.c [2023-12-16 21:00:39,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 21:00:40,074 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 21:00:40,075 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d32_e0.c [2023-12-16 21:00:40,100 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a42d14ea/9927f2bcd36c46ff9a1239ea53a51890/FLAGc51ac2351 [2023-12-16 21:00:40,113 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a42d14ea/9927f2bcd36c46ff9a1239ea53a51890 [2023-12-16 21:00:40,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 21:00:40,119 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 21:00:40,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 21:00:40,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 21:00:40,124 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 21:00:40,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:40,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c37251a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40, skipping insertion in model container [2023-12-16 21:00:40,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:40,181 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 21:00:40,332 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d32_e0.c[1271,1284] [2023-12-16 21:00:40,680 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:00:40,690 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 21:00:40,699 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n2_w32_d32_e0.c[1271,1284] [2023-12-16 21:00:40,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 21:00:40,829 INFO L206 MainTranslator]: Completed translation [2023-12-16 21:00:40,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40 WrapperNode [2023-12-16 21:00:40,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 21:00:40,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 21:00:40,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 21:00:40,831 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 21:00:40,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:40,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:40,979 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2833 [2023-12-16 21:00:40,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 21:00:40,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 21:00:40,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 21:00:40,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 21:00:40,987 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:40,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:41,009 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:41,065 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]. [2023-12-16 21:00:41,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:41,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:41,155 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:41,169 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:41,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:41,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:41,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 21:00:41,216 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 21:00:41,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 21:00:41,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 21:00:41,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (1/1) ... [2023-12-16 21:00:41,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 21:00:41,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 21:00:41,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 21:00:41,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 21:00:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 21:00:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 21:00:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 21:00:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 21:00:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 21:00:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 21:00:41,610 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 21:00:41,611 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 21:00:43,880 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 21:00:43,992 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 21:00:43,992 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 21:00:43,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:00:43 BoogieIcfgContainer [2023-12-16 21:00:43,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 21:00:43,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 21:00:43,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 21:00:43,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 21:00:43,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:00:40" (1/3) ... [2023-12-16 21:00:43,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f07a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:00:43, skipping insertion in model container [2023-12-16 21:00:43,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:00:40" (2/3) ... [2023-12-16 21:00:43,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f07a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:00:43, skipping insertion in model container [2023-12-16 21:00:43,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:00:43" (3/3) ... [2023-12-16 21:00:44,000 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n2_w32_d32_e0.c [2023-12-16 21:00:44,012 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 21:00:44,012 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 21:00:44,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 21:00:44,061 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@63554cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 21:00:44,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 21:00:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-16 21:00:44,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-16 21:00:44,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:00:44,073 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 21:00:44,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:00:44,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:00:44,079 INFO L85 PathProgramCache]: Analyzing trace with hash 871459935, now seen corresponding path program 1 times [2023-12-16 21:00:44,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:00:44,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108947577] [2023-12-16 21:00:44,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:00:44,091 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:00:44,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:00:44,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 21:00:44,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 21:00:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:00:45,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 1129 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 21:00:45,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:00:46,089 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-16 21:00:46,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 21:00:46,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:00:46,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108947577] [2023-12-16 21:00:46,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108947577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 21:00:46,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 21:00:46,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 21:00:46,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835992083] [2023-12-16 21:00:46,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 21:00:46,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 21:00:46,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:00:46,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 21:00:46,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 21:00:46,120 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 21:00:46,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:00:46,629 INFO L93 Difference]: Finished difference Result 66 states and 109 transitions. [2023-12-16 21:00:46,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 21:00:46,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 46 [2023-12-16 21:00:46,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:00:46,637 INFO L225 Difference]: With dead ends: 66 [2023-12-16 21:00:46,637 INFO L226 Difference]: Without dead ends: 41 [2023-12-16 21:00:46,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 21:00:46,641 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 21:00:46,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 57 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 21:00:46,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-12-16 21:00:46,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2023-12-16 21:00:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-16 21:00:46,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2023-12-16 21:00:46,670 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 53 transitions. Word has length 46 [2023-12-16 21:00:46,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:00:46,671 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 53 transitions. [2023-12-16 21:00:46,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 21:00:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2023-12-16 21:00:46,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 21:00:46,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:00:46,673 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-16 21:00:46,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 21:00:46,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:00:46,887 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:00:46,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:00:46,887 INFO L85 PathProgramCache]: Analyzing trace with hash 455665793, now seen corresponding path program 1 times [2023-12-16 21:00:46,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:00:46,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426789543] [2023-12-16 21:00:46,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:00:46,892 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:00:46,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:00:46,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 21:00:46,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 21:01:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:01:01,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 3372 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-16 21:01:01,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:01:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 12 proven. 43 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-16 21:01:01,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:01:01,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 21:01:01,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426789543] [2023-12-16 21:01:01,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426789543] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:01:01,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [824809333] [2023-12-16 21:01:01,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 21:01:01,951 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 21:01:01,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 21:01:01,993 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 21:01:02,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 21:01:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 21:01:04,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 3372 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-16 21:01:04,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 21:01:05,264 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 12 proven. 43 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-16 21:01:05,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 21:01:05,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [824809333] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 21:01:05,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 21:01:05,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-12-16 21:01:05,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528013588] [2023-12-16 21:01:05,433 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 21:01:05,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 21:01:05,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 21:01:05,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 21:01:05,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2023-12-16 21:01:05,435 INFO L87 Difference]: Start difference. First operand 40 states and 53 transitions. Second operand has 13 states, 11 states have (on average 4.181818181818182) internal successors, (46), 13 states have internal predecessors, (46), 8 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) [2023-12-16 21:01:07,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 21:01:07,620 INFO L93 Difference]: Finished difference Result 60 states and 80 transitions. [2023-12-16 21:01:07,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 21:01:07,621 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.181818181818182) internal successors, (46), 13 states have internal predecessors, (46), 8 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) Word has length 91 [2023-12-16 21:01:07,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 21:01:07,622 INFO L225 Difference]: With dead ends: 60 [2023-12-16 21:01:07,623 INFO L226 Difference]: Without dead ends: 58 [2023-12-16 21:01:07,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2023-12-16 21:01:07,624 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 24 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 21:01:07,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 165 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 21:01:07,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-16 21:01:07,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2023-12-16 21:01:07,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 21:01:07,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2023-12-16 21:01:07,633 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 77 transitions. Word has length 91 [2023-12-16 21:01:07,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 21:01:07,633 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 77 transitions. [2023-12-16 21:01:07,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.181818181818182) internal successors, (46), 13 states have internal predecessors, (46), 8 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 6 states have call predecessors, (28), 8 states have call successors, (28) [2023-12-16 21:01:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2023-12-16 21:01:07,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 21:01:07,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 21:01:07,635 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2023-12-16 21:01:07,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 21:01:07,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 21:01:08,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:01:08,059 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 21:01:08,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 21:01:08,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1949582433, now seen corresponding path program 2 times [2023-12-16 21:01:08,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 21:01:08,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934742861] [2023-12-16 21:01:08,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 21:01:08,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:01:08,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 21:01:08,066 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 21:01:08,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 21:01:46,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 21:01:46,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 21:01:46,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 5615 conjuncts, 213 conjunts are in the unsatisfiable core [2023-12-16 21:01:46,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 21:01:51,110 WARN L340 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)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 21:01:51,110 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 21:01:51,110 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 21:01:51,177 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 (5)] Ended with exit code 0 [2023-12-16 21:01:51,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 21:01:51,318 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 137 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 16 known predicates. [2023-12-16 21:01:51,322 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-12-16 21:01:51,325 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 21:01:51,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:01:51 BoogieIcfgContainer [2023-12-16 21:01:51,327 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 21:01:51,327 INFO L158 Benchmark]: Toolchain (without parser) took 71208.87ms. Allocated memory was 247.5MB in the beginning and 485.5MB in the end (delta: 238.0MB). Free memory was 191.1MB in the beginning and 261.2MB in the end (delta: -70.2MB). Peak memory consumption was 169.4MB. Max. memory is 8.0GB. [2023-12-16 21:01:51,330 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 205.5MB. Free memory was 156.6MB in the beginning and 156.5MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 21:01:51,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 709.86ms. Allocated memory is still 247.5MB. Free memory was 190.8MB in the beginning and 163.7MB in the end (delta: 27.1MB). Peak memory consumption was 45.7MB. Max. memory is 8.0GB. [2023-12-16 21:01:51,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.26ms. Allocated memory is still 247.5MB. Free memory was 163.7MB in the beginning and 143.8MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-16 21:01:51,331 INFO L158 Benchmark]: Boogie Preprocessor took 235.40ms. Allocated memory is still 247.5MB. Free memory was 143.8MB in the beginning and 189.7MB in the end (delta: -45.9MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. [2023-12-16 21:01:51,332 INFO L158 Benchmark]: RCFGBuilder took 2776.43ms. Allocated memory was 247.5MB in the beginning and 371.2MB in the end (delta: 123.7MB). Free memory was 189.7MB in the beginning and 203.2MB in the end (delta: -13.5MB). Peak memory consumption was 206.7MB. Max. memory is 8.0GB. [2023-12-16 21:01:51,332 INFO L158 Benchmark]: TraceAbstraction took 67332.07ms. Allocated memory was 371.2MB in the beginning and 485.5MB in the end (delta: 114.3MB). Free memory was 202.7MB in the beginning and 261.2MB in the end (delta: -58.6MB). Peak memory consumption was 55.7MB. Max. memory is 8.0GB. [2023-12-16 21:01:51,334 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 205.5MB. Free memory was 156.6MB in the beginning and 156.5MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 709.86ms. Allocated memory is still 247.5MB. Free memory was 190.8MB in the beginning and 163.7MB in the end (delta: 27.1MB). Peak memory consumption was 45.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 148.26ms. Allocated memory is still 247.5MB. Free memory was 163.7MB in the beginning and 143.8MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 235.40ms. Allocated memory is still 247.5MB. Free memory was 143.8MB in the beginning and 189.7MB in the end (delta: -45.9MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2776.43ms. Allocated memory was 247.5MB in the beginning and 371.2MB in the end (delta: 123.7MB). Free memory was 189.7MB in the beginning and 203.2MB in the end (delta: -13.5MB). Peak memory consumption was 206.7MB. Max. memory is 8.0GB. * TraceAbstraction took 67332.07ms. Allocated memory was 371.2MB in the beginning and 485.5MB in the end (delta: 114.3MB). Free memory was 202.7MB in the beginning and 261.2MB in the end (delta: -58.6MB). Peak memory consumption was 55.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 137 with TraceHistMax 21,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 16 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.3s, OverallIterations: 3, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 222 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 185 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 361 IncrementalHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 37 mSDtfsCounter, 361 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 241 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 16.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 1158 SizeOfPredicates, 105 NumberOfNonLiveVariables, 7873 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 758/844 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown