/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-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:52:26,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:52:26,611 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:52:26,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:52:26,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:52:26,636 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:52:26,636 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:52:26,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:52:26,637 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:52:26,640 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:52:26,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:52:26,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:52:26,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:52:26,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:52:26,642 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:52:26,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:52:26,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:52:26,643 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:52:26,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:52:26,644 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:52:26,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:52:26,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:52:26,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:52:26,644 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:52:26,645 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:52:26,645 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:52:26,645 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:52:26,645 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:52:26,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:52:26,645 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:52:26,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:52:26,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:52:26,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:52:26,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:52:26,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:52:26,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:52:26,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:52:26,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:52:26,647 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:52:26,647 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:52:26,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:52:26,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:52:26,648 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:52:26,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:52:26,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:52:26,648 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:52:26,648 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:52:26,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:52:26,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:52:26,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:52:26,861 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:52:26,861 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:52:26,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c [2023-12-16 17:52:27,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:52:27,965 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:52:27,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c [2023-12-16 17:52:27,979 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51d66adb/79b58279e5794c2e836a3760c5cc3c9e/FLAG0b601b9d9 [2023-12-16 17:52:27,988 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51d66adb/79b58279e5794c2e836a3760c5cc3c9e [2023-12-16 17:52:27,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:52:27,990 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:52:27,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:52:27,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:52:28,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:52:28,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:52:27" (1/1) ... [2023-12-16 17:52:28,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@160a55f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28, skipping insertion in model container [2023-12-16 17:52:28,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:52:27" (1/1) ... [2023-12-16 17:52:28,023 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:52:28,120 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c[642,655] [2023-12-16 17:52:28,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:52:28,153 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:52:28,161 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c[642,655] [2023-12-16 17:52:28,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:52:28,181 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:52:28,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28 WrapperNode [2023-12-16 17:52:28,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:52:28,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:52:28,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:52:28,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:52:28,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,208 INFO L138 Inliner]: procedures = 24, calls = 23, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 197 [2023-12-16 17:52:28,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:52:28,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:52:28,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:52:28,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:52:28,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,217 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,224 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 17:52:28,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,238 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:52:28,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:52:28,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:52:28,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:52:28,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (1/1) ... [2023-12-16 17:52:28,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:52:28,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:52:28,273 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 17:52:28,289 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 17:52:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:52:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 17:52:28,294 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 17:52:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:52:28,295 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 17:52:28,296 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 17:52:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2023-12-16 17:52:28,296 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2023-12-16 17:52:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:52:28,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:52:28,374 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:52:28,377 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:52:28,575 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:52:28,627 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:52:28,627 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-16 17:52:28,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:52:28 BoogieIcfgContainer [2023-12-16 17:52:28,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:52:28,629 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:52:28,629 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:52:28,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:52:28,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:52:27" (1/3) ... [2023-12-16 17:52:28,631 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df80b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:52:28, skipping insertion in model container [2023-12-16 17:52:28,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:28" (2/3) ... [2023-12-16 17:52:28,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df80b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:52:28, skipping insertion in model container [2023-12-16 17:52:28,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:52:28" (3/3) ... [2023-12-16 17:52:28,642 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-1.c [2023-12-16 17:52:28,654 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:52:28,654 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:52:28,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:52:28,703 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;@4431618e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:52:28,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:52:28,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 52 states have (on average 1.6538461538461537) internal successors, (86), 56 states have internal predecessors, (86), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-16 17:52:28,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 17:52:28,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:28,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:52:28,711 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:28,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:28,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1010180328, now seen corresponding path program 1 times [2023-12-16 17:52:28,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:28,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414228995] [2023-12-16 17:52:28,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:28,722 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 17:52:28,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:28,723 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 17:52:28,726 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 17:52:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 17:52:28,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-16 17:52:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 17:52:28,848 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-12-16 17:52:28,850 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-16 17:52:28,850 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:52:28,857 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 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:52:29,055 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 17:52:29,058 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-16 17:52:29,061 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:52:29,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:52:29 BoogieIcfgContainer [2023-12-16 17:52:29,089 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:52:29,090 INFO L158 Benchmark]: Toolchain (without parser) took 1099.69ms. Allocated memory was 205.5MB in the beginning and 291.5MB in the end (delta: 86.0MB). Free memory was 156.3MB in the beginning and 248.7MB in the end (delta: -92.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:52:29,090 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 205.5MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:52:29,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.76ms. Allocated memory is still 205.5MB. Free memory was 156.0MB in the beginning and 143.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 17:52:29,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.80ms. Allocated memory is still 205.5MB. Free memory was 143.0MB in the beginning and 140.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:52:29,091 INFO L158 Benchmark]: Boogie Preprocessor took 32.67ms. Allocated memory is still 205.5MB. Free memory was 140.9MB in the beginning and 138.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:52:29,092 INFO L158 Benchmark]: RCFGBuilder took 385.47ms. Allocated memory is still 205.5MB. Free memory was 138.8MB in the beginning and 117.9MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-16 17:52:29,092 INFO L158 Benchmark]: TraceAbstraction took 460.61ms. Allocated memory was 205.5MB in the beginning and 291.5MB in the end (delta: 86.0MB). Free memory was 117.2MB in the beginning and 248.7MB in the end (delta: -131.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:52:29,094 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 205.5MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 190.76ms. Allocated memory is still 205.5MB. Free memory was 156.0MB in the beginning and 143.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.80ms. Allocated memory is still 205.5MB. Free memory was 143.0MB in the beginning and 140.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.67ms. Allocated memory is still 205.5MB. Free memory was 140.9MB in the beginning and 138.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 385.47ms. Allocated memory is still 205.5MB. Free memory was 138.8MB in the beginning and 117.9MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 460.61ms. Allocated memory was 205.5MB in the beginning and 291.5MB in the end (delta: 86.0MB). Free memory was 117.2MB in the beginning and 248.7MB in the end (delta: -131.6MB). There was no memory consumed. 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L24] int q_buf_0 ; [L25] int q_free ; [L26] int q_read_ev ; [L27] int q_write_ev ; [L28] int p_num_write ; [L29] int p_last_write ; [L30] int p_dw_st ; [L31] int p_dw_pc ; [L32] int p_dw_i ; [L33] int c_num_read ; [L34] int c_last_read ; [L35] int c_dr_st ; [L36] int c_dr_pc ; [L37] int c_dr_i ; [L144] static int a_t ; [L360] int __retres1 ; [L364] CALL init_model() [L346] q_free = 1 [L347] q_write_ev = 2 [L348] q_read_ev = q_write_ev [L349] p_num_write = 0 [L350] p_dw_pc = 0 [L351] p_dw_i = 1 [L352] c_num_read = 0 [L353] c_dr_pc = 0 [L354] c_dr_i = 1 [L364] RET init_model() [L365] CALL start_simulation() [L314] int kernel_st ; [L315] int tmp ; [L319] kernel_st = 0 [L320] CALL init_threads() [L206] COND TRUE (int )p_dw_i == 1 [L207] p_dw_st = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L211] COND TRUE (int )c_dr_i == 1 [L212] c_dr_st = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L320] RET init_threads() [L323] COND TRUE 1 [L326] kernel_st = 1 [L327] CALL eval() [L241] int tmp ; [L242] int tmp___0 ; [L243] int tmp___1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L247] COND TRUE 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L250] CALL, EXPR exists_runnable_thread() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L221] int __retres1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L224] COND TRUE (int )p_dw_st == 0 [L225] __retres1 = 1 VAL [__retres1=1, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L237] return (__retres1); [L250] RET, EXPR exists_runnable_thread() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L250] tmp___1 = exists_runnable_thread() [L252] COND TRUE \read(tmp___1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, tmp___1=1] [L257] COND TRUE (int )p_dw_st == 0 [L259] tmp = __VERIFIER_nondet_int() [L261] COND FALSE !(\read(tmp)) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, tmp=0, tmp___1=1] [L267] CALL error() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L19] reach_error() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! [2023-12-16 17:52:29,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...