/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.mul11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 15:54:14,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 15:54:14,163 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-06 15:54:14,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 15:54:14,166 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 15:54:14,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 15:54:14,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 15:54:14,181 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 15:54:14,181 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 15:54:14,181 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 15:54:14,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 15:54:14,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 15:54:14,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 15:54:14,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 15:54:14,183 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 15:54:14,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 15:54:14,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 15:54:14,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 15:54:14,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 15:54:14,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 15:54:14,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 15:54:14,185 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 15:54:14,185 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 15:54:14,186 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 15:54:14,186 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 15:54:14,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 15:54:14,186 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 15:54:14,187 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 15:54:14,187 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 15:54:14,187 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 15:54:14,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 15:54:14,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 15:54:14,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 15:54:14,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 15:54:14,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 15:54:14,192 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 15:54:14,192 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 15:54:14,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 15:54:14,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 15:54:14,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 15:54:14,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 15:54:14,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 15:54:14,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 15:54:14,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 15:54:14,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 15:54:14,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 15:54:14,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 15:54:14,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.mul11.c [2024-11-06 15:54:15,678 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 15:54:15,912 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 15:54:15,915 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.mul11.c [2024-11-06 15:54:15,925 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb04ae7d0/b4025b321d0741c09993406a4798935e/FLAGf48fb0ccf [2024-11-06 15:54:16,298 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb04ae7d0/b4025b321d0741c09993406a4798935e [2024-11-06 15:54:16,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 15:54:16,301 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 15:54:16,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 15:54:16,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 15:54:16,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 15:54:16,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e98dc05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16, skipping insertion in model container [2024-11-06 15:54:16,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,344 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 15:54:16,473 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.mul11.c[1245,1258] [2024-11-06 15:54:16,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 15:54:16,598 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 15:54:16,607 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.mul11.c[1245,1258] [2024-11-06 15:54:16,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 15:54:16,714 INFO L204 MainTranslator]: Completed translation [2024-11-06 15:54:16,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16 WrapperNode [2024-11-06 15:54:16,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 15:54:16,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 15:54:16,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 15:54:16,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 15:54:16,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,781 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 737 [2024-11-06 15:54:16,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 15:54:16,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 15:54:16,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 15:54:16,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 15:54:16,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,804 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,834 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-06 15:54:16,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 15:54:16,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 15:54:16,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 15:54:16,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 15:54:16,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (1/1) ... [2024-11-06 15:54:16,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 15:54:16,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 15:54:16,908 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) [2024-11-06 15:54:16,917 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 [2024-11-06 15:54:16,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 15:54:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 15:54:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 15:54:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 15:54:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 15:54:17,071 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 15:54:17,098 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 15:54:17,842 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-06 15:54:17,843 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 15:54:17,852 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 15:54:17,852 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 15:54:17,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:54:17 BoogieIcfgContainer [2024-11-06 15:54:17,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 15:54:17,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 15:54:17,855 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 15:54:17,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 15:54:17,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 03:54:16" (1/3) ... [2024-11-06 15:54:17,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d2e069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:54:17, skipping insertion in model container [2024-11-06 15:54:17,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:54:16" (2/3) ... [2024-11-06 15:54:17,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d2e069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:54:17, skipping insertion in model container [2024-11-06 15:54:17,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:54:17" (3/3) ... [2024-11-06 15:54:17,859 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mul11.c [2024-11-06 15:54:17,870 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 15:54:17,870 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 15:54:17,904 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 15:54:17,910 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;@27e340b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 15:54:17,910 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 15:54:17,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 15:54:17,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-06 15:54:17,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 15:54:17,916 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-06 15:54:17,917 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 15:54:17,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 15:54:17,920 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-06 15:54:17,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 15:54:17,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632911404] [2024-11-06 15:54:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 15:54:17,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 15:54:17,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 15:54:17,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 15:54:17,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 15:54:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 15:54:18,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-06 15:54:18,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 15:54:18,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 15:54:18,556 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 15:54:18,557 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 15:54:18,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632911404] [2024-11-06 15:54:18,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632911404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 15:54:18,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 15:54:18,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 15:54:18,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237635642] [2024-11-06 15:54:18,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 15:54:18,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 15:54:18,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 15:54:18,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 15:54:18,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 15:54:18,579 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 15:54:18,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 15:54:18,716 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2024-11-06 15:54:18,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 15:54:18,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-06 15:54:18,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 15:54:18,726 INFO L225 Difference]: With dead ends: 17 [2024-11-06 15:54:18,726 INFO L226 Difference]: Without dead ends: 9 [2024-11-06 15:54:18,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 15:54:18,732 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 15:54:18,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 15:54:18,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-06 15:54:18,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-06 15:54:18,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 15:54:18,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-06 15:54:18,752 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-06 15:54:18,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 15:54:18,752 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-06 15:54:18,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 15:54:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-06 15:54:18,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-06 15:54:18,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 15:54:18,753 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-06 15:54:18,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 15:54:18,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 15:54:18,954 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 15:54:18,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 15:54:18,955 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-06 15:54:18,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 15:54:18,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909821403] [2024-11-06 15:54:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 15:54:18,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 15:54:18,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 15:54:18,959 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 15:54:18,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 15:54:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 15:54:19,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-11-06 15:54:19,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 15:54:20,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 15:54:20,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 15:54:37,010 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse17 (= |c_ULTIMATE.start_main_~state_269~0#1| (_ bv0 8)))) (let ((.cse20 (not .cse17)) (.cse32 (forall ((|ULTIMATE.start_main_~mask_SORT_10~0#1| (_ BitVec 64)) (|v_ULTIMATE.start_main_~var_22_arg_1~0#1_10| (_ BitVec 64))) (= (bvand |c_ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~mask_SORT_10~0#1|) (bvand |v_ULTIMATE.start_main_~var_22_arg_1~0#1_10| |ULTIMATE.start_main_~mask_SORT_10~0#1|)))) (.cse16 (= |c_ULTIMATE.start_main_~state_251~0#1| (_ bv0 8))) (.cse34 (forall ((|v_ULTIMATE.start_main_~var_53_arg_0~0#1_10| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_0~0#1_10|))))))))) (.cse33 (forall ((|ULTIMATE.start_main_~mask_SORT_10~0#1| (_ BitVec 64)) (|v_ULTIMATE.start_main_~var_17_arg_1~0#1_10| (_ BitVec 64))) (= (bvand |c_ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~mask_SORT_10~0#1|) (bvand |v_ULTIMATE.start_main_~var_17_arg_1~0#1_10| |ULTIMATE.start_main_~mask_SORT_10~0#1|))))) (let ((.cse31 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~state_42~0#1_9| (_ BitVec 32))) (not (= (bvand |v_ULTIMATE.start_main_~state_42~0#1_9| |c_ULTIMATE.start_main_~mask_SORT_3~0#1|) (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |ULTIMATE.start_main_~input_5~0#1|))))) (.cse11 (= (_ bv0 8) |c_ULTIMATE.start_main_~input_8~0#1|)) (.cse18 (forall ((|ULTIMATE.start_main_~mask_SORT_10~0#1| (_ BitVec 64)) (|v_ULTIMATE.start_main_~var_17_arg_1~0#1_10| (_ BitVec 64))) (not (= (bvand |c_ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~mask_SORT_10~0#1|) (bvand |v_ULTIMATE.start_main_~var_17_arg_1~0#1_10| |ULTIMATE.start_main_~mask_SORT_10~0#1|))))) (.cse36 (or .cse34 .cse33)) (.cse12 (not .cse16)) (.cse35 (or .cse17 .cse32 .cse34)) (.cse30 (forall ((|v_ULTIMATE.start_main_~var_53_arg_0~0#1_10| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_0~0#1_10|))))))))) (.cse15 (and (forall ((|ULTIMATE.start_main_~mask_SORT_10~0#1| (_ BitVec 64)) (|v_ULTIMATE.start_main_~var_22_arg_1~0#1_10| (_ BitVec 64))) (not (= (bvand |c_ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~mask_SORT_10~0#1|) (bvand |v_ULTIMATE.start_main_~var_22_arg_1~0#1_10| |ULTIMATE.start_main_~mask_SORT_10~0#1|)))) .cse20))) (let ((.cse37 (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |c_ULTIMATE.start_main_~state_30~0#1|)) (.cse5 (and (or .cse16 (and (or .cse17 (and .cse30 .cse34)) (or .cse20 (and (or .cse18 .cse30) .cse36)))) (or .cse12 (and .cse35 (or .cse30 .cse15))))) (.cse23 (not .cse11)) (.cse26 (or .cse31 .cse34)) (.cse27 (or (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~state_42~0#1_9| (_ BitVec 32))) (= (bvand |v_ULTIMATE.start_main_~state_42~0#1_9| |c_ULTIMATE.start_main_~mask_SORT_3~0#1|) (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |ULTIMATE.start_main_~input_5~0#1|))) .cse34))) (let ((.cse14 (and .cse26 .cse27)) (.cse6 (= (_ bv0 8) |c_ULTIMATE.start_main_~input_9~0#1|)) (.cse25 (or .cse5 .cse23)) (.cse22 (forall ((|ULTIMATE.start_main_~input_4~0#1| (_ BitVec 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |ULTIMATE.start_main_~input_4~0#1|) .cse37)))) (.cse21 (forall ((|ULTIMATE.start_main_~input_4~0#1| (_ BitVec 32))) (= (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |ULTIMATE.start_main_~input_4~0#1|) .cse37)))) (let ((.cse8 (and .cse25 (or (and (or .cse5 .cse22) (or .cse21 (and (or (and (or .cse34 .cse15) .cse35) .cse12) (or .cse16 (and (or .cse20 (and (or .cse18 .cse34) .cse36)) (or .cse17 .cse34)))))) .cse11))) (.cse4 (not .cse6)) (.cse19 (or .cse14 .cse33)) (.cse13 (or .cse17 .cse14 .cse32))) (let ((.cse3 ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_9~0#1|)) (.cse7 (let ((.cse28 (or .cse30 .cse31))) (let ((.cse29 (and .cse27 .cse28))) (and (or .cse16 (and (or .cse17 (and .cse26 .cse27 .cse28)) (or .cse20 (and (or .cse18 .cse29) .cse19)))) (or .cse12 (and (or .cse29 .cse15) .cse13)))))) (.cse9 (or .cse8 .cse4)) (.cse2 ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_8~0#1|))) (and (or (forall ((|ULTIMATE.start_main_~input_6~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_7~0#1| (_ BitVec 8))) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~input_6~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~input_7~0#1|)))))) (or (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse1 .cse2)))))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse3 .cse1))) .cse0))))))) (and (or .cse4 .cse5) (or .cse6 .cse7))) (or (forall ((|ULTIMATE.start_main_~input_6~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_7~0#1| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~input_6~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~input_7~0#1|)))) .cse2)))))))) (and (or .cse8 .cse6) .cse9)) (or (forall ((|ULTIMATE.start_main_~input_6~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_7~0#1| (_ BitVec 8))) (let ((.cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~input_6~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~input_7~0#1|)))))) (or (not (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse3 .cse10))) .cse0)))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse10 .cse2)))))))))) (and (or .cse6 (and (or .cse11 (and (or (and (or .cse12 (and .cse13 (or .cse14 .cse15))) (or .cse16 (and (or .cse17 .cse14) (or (and (or .cse18 .cse14) .cse19) .cse20)))) .cse21) (or .cse7 .cse22))) (or .cse7 .cse23))) .cse9)) (or (forall ((|ULTIMATE.start_main_~input_6~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_7~0#1| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~input_6~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~input_7~0#1|)))) .cse2))))))) (let ((.cse24 (and .cse25 (or .cse11 .cse5)))) (and (or .cse4 .cse24) (or .cse6 .cse24)))))))))))) is different from false [2024-11-06 15:55:40,014 WARN L286 SmtUtils]: Spent 30.31s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)