/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/nla-digbench-scaling/fermat2-ll_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 02:29:50,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 02:29:50,982 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 02:29:50,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 02:29:50,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 02:29:51,006 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 02:29:51,007 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 02:29:51,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 02:29:51,008 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 02:29:51,010 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 02:29:51,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 02:29:51,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 02:29:51,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 02:29:51,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 02:29:51,012 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 02:29:51,013 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 02:29:51,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 02:29:51,013 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 02:29:51,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 02:29:51,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 02:29:51,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 02:29:51,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 02:29:51,014 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 02:29:51,014 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 02:29:51,014 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 02:29:51,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 02:29:51,014 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 02:29:51,014 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 02:29:51,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 02:29:51,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 02:29:51,015 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 02:29:51,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 02:29:51,015 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 02:29:51,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 02:29:51,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 02:29:51,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 02:29:51,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 02:29:51,016 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 02:29:51,016 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 02:29:51,016 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 02:29:51,016 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 02:29:51,016 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 02:29:51,016 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 02:29:51,016 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 02:29:51,017 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 02:29:51,017 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 02:29:51,017 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 02:29:51,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 02:29:51,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 02:29:51,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 02:29:51,179 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 02:29:51,180 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 02:29:51,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c [2023-12-25 02:29:52,147 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 02:29:52,293 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 02:29:52,295 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c [2023-12-25 02:29:52,300 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee81409fd/7eaadae166a047128c96255921d03565/FLAGf7ea3b0fc [2023-12-25 02:29:52,308 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee81409fd/7eaadae166a047128c96255921d03565 [2023-12-25 02:29:52,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 02:29:52,311 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 02:29:52,313 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 02:29:52,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 02:29:52,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 02:29:52,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc12685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52, skipping insertion in model container [2023-12-25 02:29:52,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,333 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 02:29:52,439 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c[524,537] [2023-12-25 02:29:52,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 02:29:52,471 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 02:29:52,483 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound2.c[524,537] [2023-12-25 02:29:52,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 02:29:52,516 INFO L206 MainTranslator]: Completed translation [2023-12-25 02:29:52,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52 WrapperNode [2023-12-25 02:29:52,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 02:29:52,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 02:29:52,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 02:29:52,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 02:29:52,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,541 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2023-12-25 02:29:52,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 02:29:52,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 02:29:52,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 02:29:52,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 02:29:52,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,551 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,558 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]. [2023-12-25 02:29:52,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,561 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 02:29:52,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 02:29:52,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 02:29:52,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 02:29:52,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (1/1) ... [2023-12-25 02:29:52,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 02:29:52,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 02:29:52,601 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) [2023-12-25 02:29:52,627 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 [2023-12-25 02:29:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 02:29:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 02:29:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-25 02:29:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-25 02:29:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 02:29:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 02:29:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-25 02:29:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-25 02:29:52,682 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 02:29:52,685 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 02:29:52,895 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 02:29:52,918 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 02:29:52,918 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 02:29:52,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 02:29:52 BoogieIcfgContainer [2023-12-25 02:29:52,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 02:29:52,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 02:29:52,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 02:29:52,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 02:29:52,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 02:29:52" (1/3) ... [2023-12-25 02:29:52,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0ccd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 02:29:52, skipping insertion in model container [2023-12-25 02:29:52,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 02:29:52" (2/3) ... [2023-12-25 02:29:52,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0ccd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 02:29:52, skipping insertion in model container [2023-12-25 02:29:52,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 02:29:52" (3/3) ... [2023-12-25 02:29:52,924 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound2.c [2023-12-25 02:29:52,935 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 02:29:52,935 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 02:29:52,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 02:29:52,977 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;@69bfc482, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 02:29:52,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 02:29:52,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-25 02:29:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-25 02:29:52,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 02:29:52,993 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 02:29:52,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 02:29:52,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 02:29:52,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1510333481, now seen corresponding path program 1 times [2023-12-25 02:29:53,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 02:29:53,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008487734] [2023-12-25 02:29:53,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 02:29:53,005 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 [2023-12-25 02:29:53,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 02:29:53,006 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) [2023-12-25 02:29:53,009 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 [2023-12-25 02:29:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 02:29:53,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 02:29:53,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 02:29:53,150 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 02:29:53,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 02:29:53,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 02:29:53,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008487734] [2023-12-25 02:29:53,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008487734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 02:29:53,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 02:29:53,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 02:29:53,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564841724] [2023-12-25 02:29:53,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 02:29:53,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 02:29:53,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 02:29:53,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 02:29:53,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 02:29:53,183 INFO L87 Difference]: Start difference. First operand has 24 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-25 02:29:53,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 02:29:53,207 INFO L93 Difference]: Finished difference Result 46 states and 69 transitions. [2023-12-25 02:29:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 02:29:53,209 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2023-12-25 02:29:53,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 02:29:53,213 INFO L225 Difference]: With dead ends: 46 [2023-12-25 02:29:53,214 INFO L226 Difference]: Without dead ends: 22 [2023-12-25 02:29:53,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 02:29:53,218 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 02:29:53,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 02:29:53,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-25 02:29:53,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-12-25 02:29:53,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-25 02:29:53,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2023-12-25 02:29:53,240 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 28 [2023-12-25 02:29:53,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 02:29:53,240 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2023-12-25 02:29:53,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-25 02:29:53,240 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-12-25 02:29:53,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-25 02:29:53,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 02:29:53,241 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 02:29:53,247 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 [2023-12-25 02:29:53,444 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 [2023-12-25 02:29:53,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 02:29:53,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 02:29:53,445 INFO L85 PathProgramCache]: Analyzing trace with hash -369120531, now seen corresponding path program 1 times [2023-12-25 02:29:53,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 02:29:53,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109783882] [2023-12-25 02:29:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 02:29:53,446 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 [2023-12-25 02:29:53,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 02:29:53,448 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) [2023-12-25 02:29:53,451 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 [2023-12-25 02:29:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 02:29:53,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-25 02:29:53,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 02:29:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-25 02:29:54,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 02:29:59,092 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-25 02:29:59,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 02:29:59,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109783882] [2023-12-25 02:29:59,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109783882] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 02:29:59,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 02:29:59,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-25 02:29:59,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197859673] [2023-12-25 02:29:59,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 02:29:59,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 02:29:59,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 02:29:59,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 02:29:59,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-25 02:29:59,095 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-25 02:30:05,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 02:30:09,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 02:30:10,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 02:30:10,687 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2023-12-25 02:30:10,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 02:30:10,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2023-12-25 02:30:10,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 02:30:10,709 INFO L225 Difference]: With dead ends: 33 [2023-12-25 02:30:10,709 INFO L226 Difference]: Without dead ends: 31 [2023-12-25 02:30:10,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-12-25 02:30:10,710 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 8 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-12-25 02:30:10,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 73 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2023-12-25 02:30:10,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-12-25 02:30:10,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2023-12-25 02:30:10,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-25 02:30:10,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2023-12-25 02:30:10,716 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 28 [2023-12-25 02:30:10,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 02:30:10,717 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2023-12-25 02:30:10,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-25 02:30:10,717 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-12-25 02:30:10,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-25 02:30:10,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 02:30:10,717 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 02:30:10,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 02:30:10,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 02:30:10,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 02:30:10,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 02:30:10,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1928791027, now seen corresponding path program 1 times [2023-12-25 02:30:10,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 02:30:10,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600324518] [2023-12-25 02:30:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 02:30:10,922 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 [2023-12-25 02:30:10,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 02:30:10,925 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 02:30:10,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-25 02:30:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 02:30:11,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 02:30:11,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 02:30:14,282 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-25 02:30:14,283 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 02:30:28,626 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-25 02:30:28,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 02:30:28,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600324518] [2023-12-25 02:30:28,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600324518] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 02:30:28,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 02:30:28,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2023-12-25 02:30:28,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136527439] [2023-12-25 02:30:28,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 02:30:28,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 02:30:28,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 02:30:28,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 02:30:28,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-12-25 02:30:28,628 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-25 02:30:32,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 02:30:32,521 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2023-12-25 02:30:32,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 02:30:32,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2023-12-25 02:30:32,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 02:30:32,536 INFO L225 Difference]: With dead ends: 36 [2023-12-25 02:30:32,536 INFO L226 Difference]: Without dead ends: 29 [2023-12-25 02:30:32,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 02:30:32,537 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-25 02:30:32,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 83 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-25 02:30:32,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-12-25 02:30:32,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-12-25 02:30:32,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-25 02:30:32,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2023-12-25 02:30:32,543 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 34 [2023-12-25 02:30:32,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 02:30:32,543 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-12-25 02:30:32,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-25 02:30:32,543 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-12-25 02:30:32,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-25 02:30:32,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 02:30:32,544 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 02:30:32,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-25 02:30:32,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 02:30:32,745 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 02:30:32,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 02:30:32,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1862368888, now seen corresponding path program 1 times [2023-12-25 02:30:32,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 02:30:32,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283172605] [2023-12-25 02:30:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 02:30:32,746 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 [2023-12-25 02:30:32,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 02:30:32,747 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) [2023-12-25 02:30:32,747 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 [2023-12-25 02:30:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 02:30:32,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 02:30:32,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 02:30:47,002 WARN L293 SmtUtils]: Spent 5.20s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-25 02:31:02,946 WARN L293 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-25 02:31:18,221 WARN L293 SmtUtils]: Spent 6.48s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-25 02:31:31,821 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-25 02:31:31,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 02:31:31,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 02:31:31,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283172605] [2023-12-25 02:31:31,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283172605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 02:31:31,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 02:31:31,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 02:31:31,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963853145] [2023-12-25 02:31:31,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 02:31:31,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 02:31:31,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 02:31:31,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 02:31:31,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 02:31:31,825 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-25 02:31:57,950 WARN L293 SmtUtils]: Spent 20.14s on a formula simplification. DAG size of input: 23 DAG size of output: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-25 02:31:58,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 02:31:58,050 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2023-12-25 02:31:58,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 02:31:58,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 36 [2023-12-25 02:31:58,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 02:31:58,086 INFO L225 Difference]: With dead ends: 29 [2023-12-25 02:31:58,086 INFO L226 Difference]: Without dead ends: 0 [2023-12-25 02:31:58,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 49.3s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-25 02:31:58,087 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 02:31:58,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 58 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 02:31:58,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-25 02:31:58,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-25 02:31:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-12-25 02:31:58,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-25 02:31:58,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2023-12-25 02:31:58,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 02:31:58,088 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-25 02:31:58,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-25 02:31:58,088 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-25 02:31:58,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-25 02:31:58,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 02:31:58,099 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 (5)] Forceful destruction successful, exit code 0 [2023-12-25 02:31:58,293 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 [2023-12-25 02:31:58,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-25 02:33:16,101 WARN L293 SmtUtils]: Spent 1.30m on a formula simplification. DAG size of input: 54 DAG size of output: 49 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-25 02:33:22,805 WARN L293 SmtUtils]: Spent 6.70s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-25 02:34:44,644 WARN L293 SmtUtils]: Spent 1.36m on a formula simplification. DAG size of input: 54 DAG size of output: 49 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-25 02:34:44,650 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 46) the Hoare annotation is: (= (bvadd (bvneg (bvmul |ULTIMATE.start_main_~u~0#1| (_ bv2 64))) (bvmul |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~u~0#1|) (bvmul |ULTIMATE.start_main_~v~0#1| (_ bv2 64)) (bvneg (bvmul |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~v~0#1|))) (bvmul (_ bv4 64) ((_ sign_extend 32) |ULTIMATE.start_main_~A~0#1|))) [2023-12-25 02:34:44,650 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-25 02:34:44,650 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-12-25 02:34:44,650 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~R~0#1| (_ bv0 32)) (bvslt (let ((.cse0 (bvadd ((_ sign_extend 32) |ULTIMATE.start_main_~R~0#1|) (_ bv18446744073709551615 64)))) (bvmul .cse0 .cse0)) ((_ sign_extend 32) |ULTIMATE.start_main_~A~0#1|)) (bvsle |ULTIMATE.start_main_~A~0#1| (_ bv2 32))) [2023-12-25 02:34:44,650 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~A~0#1| (_ bv0 32)) (bvsle |ULTIMATE.start_main_~A~0#1| (_ bv2 32))) [2023-12-25 02:34:44,650 INFO L895 garLoopResultBuilder]: At program point L25-1(line 25) the Hoare annotation is: (and (bvsge |ULTIMATE.start_main_~R~0#1| (_ bv0 32)) (bvsle |ULTIMATE.start_main_~R~0#1| (_ bv2 32)) (bvsge |ULTIMATE.start_main_~A~0#1| (_ bv0 32)) (bvsle |ULTIMATE.start_main_~A~0#1| (_ bv2 32))) [2023-12-25 02:34:44,651 INFO L902 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: true [2023-12-25 02:34:44,651 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2023-12-25 02:34:44,651 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-25 02:34:44,651 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse4 ((_ sign_extend 32) |ULTIMATE.start_main_~A~0#1|))) (and (= (_ bv1 32) (bvsrem |ULTIMATE.start_main_~A~0#1| (_ bv2 32))) (exists ((v_subst_2 (_ BitVec 32)) (v_subst_1 (_ BitVec 32))) (let ((.cse2 ((_ sign_extend 32) v_subst_2)) (.cse1 ((_ sign_extend 32) v_subst_1))) (and (bvslt (let ((.cse0 (bvadd (_ bv18446744073709551615 64) .cse1))) (bvmul .cse0 .cse0)) .cse2) (= (bvsrem v_subst_2 (_ bv2 32)) (_ bv1 32)) (= |ULTIMATE.start_main_~r~0#1| (bvadd (bvneg .cse2) (bvmul .cse1 .cse1))) (bvsle v_subst_2 (_ bv2 32)) (bvsge v_subst_1 (_ bv0 32))))) (bvsge |ULTIMATE.start_main_~R~0#1| (_ bv0 32)) (bvslt (let ((.cse3 (bvadd ((_ sign_extend 32) |ULTIMATE.start_main_~R~0#1|) (_ bv18446744073709551615 64)))) (bvmul .cse3 .cse3)) .cse4) (bvsle |ULTIMATE.start_main_~A~0#1| (_ bv2 32)) (= (bvadd (bvneg (bvmul |ULTIMATE.start_main_~u~0#1| (_ bv2 64))) (bvmul |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~u~0#1|) (bvmul |ULTIMATE.start_main_~v~0#1| (_ bv2 64)) (bvneg (bvmul |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~v~0#1|))) (bvadd (bvmul |ULTIMATE.start_main_~r~0#1| (_ bv4 64)) (bvmul (_ bv4 64) .cse4))))) [2023-12-25 02:34:44,651 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 35 46) no Hoare annotation was computed. [2023-12-25 02:34:44,651 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-12-25 02:34:44,651 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 45) no Hoare annotation was computed. [2023-12-25 02:34:44,651 INFO L895 garLoopResultBuilder]: At program point L39-2(lines 35 46) the Hoare annotation is: (let ((.cse4 ((_ sign_extend 32) |ULTIMATE.start_main_~A~0#1|))) (and (= (_ bv1 32) (bvsrem |ULTIMATE.start_main_~A~0#1| (_ bv2 32))) (exists ((v_subst_2 (_ BitVec 32)) (v_subst_1 (_ BitVec 32))) (let ((.cse2 ((_ sign_extend 32) v_subst_2)) (.cse1 ((_ sign_extend 32) v_subst_1))) (and (bvslt (let ((.cse0 (bvadd (_ bv18446744073709551615 64) .cse1))) (bvmul .cse0 .cse0)) .cse2) (= (bvsrem v_subst_2 (_ bv2 32)) (_ bv1 32)) (= |ULTIMATE.start_main_~r~0#1| (bvadd (bvneg .cse2) (bvmul .cse1 .cse1))) (bvsle v_subst_2 (_ bv2 32)) (bvsge v_subst_1 (_ bv0 32))))) (bvsge |ULTIMATE.start_main_~R~0#1| (_ bv0 32)) (bvslt (let ((.cse3 (bvadd ((_ sign_extend 32) |ULTIMATE.start_main_~R~0#1|) (_ bv18446744073709551615 64)))) (bvmul .cse3 .cse3)) .cse4) (bvsle |ULTIMATE.start_main_~A~0#1| (_ bv2 32)) (= (bvadd (bvneg (bvmul |ULTIMATE.start_main_~u~0#1| (_ bv2 64))) (bvmul |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~u~0#1|) (bvmul |ULTIMATE.start_main_~v~0#1| (_ bv2 64)) (bvneg (bvmul |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~v~0#1|))) (bvadd (bvmul |ULTIMATE.start_main_~r~0#1| (_ bv4 64)) (bvmul (_ bv4 64) .cse4))))) [2023-12-25 02:34:44,651 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2023-12-25 02:34:44,652 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2023-12-25 02:34:44,652 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2023-12-25 02:34:44,652 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2023-12-25 02:34:44,652 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2023-12-25 02:34:44,652 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-12-25 02:34:44,652 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2023-12-25 02:34:44,652 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-12-25 02:34:44,652 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-12-25 02:34:44,652 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2023-12-25 02:34:44,654 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-25 02:34:44,655 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 02:34:44,663 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_subst_2 : bv32, v_subst_1 : bv32 :: (((~bvslt~64(~bvmul~64(~bvadd~64(18446744073709551615bv64, ~sign_extend~64~32(v_subst_1)), ~bvadd~64(18446744073709551615bv64, ~sign_extend~64~32(v_subst_1))), ~sign_extend~64~32(v_subst_2)) && ~bvsrem~32(v_subst_2, 2bv32) == 1bv32) && ~r~0 == ~bvadd~64(~bvneg~64(~sign_extend~64~32(v_subst_2)), ~bvmul~64(~sign_extend~64~32(v_subst_1), ~sign_extend~64~32(v_subst_1)))) && ~bvsle~32(v_subst_2, 2bv32)) && ~bvsge~32(v_subst_1, 0bv32)) could not be translated [2023-12-25 02:34:44,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 02:34:44 BoogieIcfgContainer [2023-12-25 02:34:44,664 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 02:34:44,665 INFO L158 Benchmark]: Toolchain (without parser) took 292353.51ms. Allocated memory is still 309.3MB. Free memory was 266.7MB in the beginning and 198.3MB in the end (delta: 68.5MB). Peak memory consumption was 70.0MB. Max. memory is 8.0GB. [2023-12-25 02:34:44,665 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 190.8MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 02:34:44,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.12ms. Allocated memory is still 309.3MB. Free memory was 266.2MB in the beginning and 254.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-25 02:34:44,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.81ms. Allocated memory is still 309.3MB. Free memory was 254.7MB in the beginning and 253.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-25 02:34:44,665 INFO L158 Benchmark]: Boogie Preprocessor took 29.63ms. Allocated memory is still 309.3MB. Free memory was 253.1MB in the beginning and 251.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-25 02:34:44,666 INFO L158 Benchmark]: RCFGBuilder took 346.63ms. Allocated memory is still 309.3MB. Free memory was 251.0MB in the beginning and 238.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-25 02:34:44,666 INFO L158 Benchmark]: TraceAbstraction took 291744.37ms. Allocated memory is still 309.3MB. Free memory was 237.4MB in the beginning and 198.3MB in the end (delta: 39.1MB). Peak memory consumption was 40.7MB. Max. memory is 8.0GB. [2023-12-25 02:34:44,667 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 190.8MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 204.12ms. Allocated memory is still 309.3MB. Free memory was 266.2MB in the beginning and 254.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.81ms. Allocated memory is still 309.3MB. Free memory was 254.7MB in the beginning and 253.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.63ms. Allocated memory is still 309.3MB. Free memory was 253.1MB in the beginning and 251.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 346.63ms. Allocated memory is still 309.3MB. Free memory was 251.0MB in the beginning and 238.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 291744.37ms. Allocated memory is still 309.3MB. Free memory was 237.4MB in the beginning and 198.3MB in the end (delta: 39.1MB). Peak memory consumption was 40.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_subst_2 : bv32, v_subst_1 : bv32 :: (((~bvslt~64(~bvmul~64(~bvadd~64(18446744073709551615bv64, ~sign_extend~64~32(v_subst_1)), ~bvadd~64(18446744073709551615bv64, ~sign_extend~64~32(v_subst_1))), ~sign_extend~64~32(v_subst_2)) && ~bvsrem~32(v_subst_2, 2bv32) == 1bv32) && ~r~0 == ~bvadd~64(~bvneg~64(~sign_extend~64~32(v_subst_2)), ~bvmul~64(~sign_extend~64~32(v_subst_1), ~sign_extend~64~32(v_subst_1)))) && ~bvsle~32(v_subst_2, 2bv32)) && ~bvsge~32(v_subst_1, 0bv32)) could not be translated * 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 - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 291.7s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 41.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 166.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 17.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 241 SdHoareTripleChecker+Invalid, 17.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 159 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 109 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 82 mSDtfsCounter, 109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 66.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=3, InterpolantAutomatonStates: 24, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 20 PreInvPairs, 26 NumberOfFragments, 230 HoareAnnotationTreeSize, 20 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FormulaSimplificationsInter, 50 FormulaSimplificationTreeSizeReductionInter, 166.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 82.1s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 182 ConstructedInterpolants, 9 QuantifiedInterpolants, 914 SizeOfPredicates, 18 NumberOfNonLiveVariables, 224 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 140/152 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((1 == (A % 2)) && (R >= 0)) && ((((R + -1) % 1) * ((R + -1) % 1)) < A)) && (A <= 2)) && (((-((u * 2)) + (u * u)) % 1) == (((r * 4) + (4 * A)) % 1))) RESULT: Ultimate proved your program to be correct! [2023-12-25 02:34:44,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...