/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-25.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 11:50:17,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 11:50:17,069 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 11:50:17,073 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 11:50:17,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 11:50:17,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 11:50:17,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 11:50:17,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 11:50:17,103 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 11:50:17,103 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 11:50:17,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 11:50:17,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 11:50:17,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 11:50:17,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 11:50:17,111 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 11:50:17,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 11:50:17,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 11:50:17,112 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 11:50:17,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 11:50:17,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 11:50:17,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 11:50:17,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 11:50:17,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 11:50:17,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 11:50:17,113 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 11:50:17,113 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 11:50:17,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 11:50:17,114 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 11:50:17,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 11:50:17,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 11:50:17,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 11:50:17,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 11:50:17,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:50:17,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 11:50:17,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 11:50:17,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 11:50:17,116 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 11:50:17,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 11:50:17,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 11:50:17,116 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 11:50:17,117 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 11:50:17,117 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 11:50:17,117 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 11:50:17,117 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 11:50:17,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 11:50:17,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 11:50:17,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 11:50:17,279 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 11:50:17,292 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 11:50:17,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-25.i [2023-12-19 11:50:18,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 11:50:18,540 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 11:50:18,541 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-25.i [2023-12-19 11:50:18,546 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/883b8fbfc/3c9bbeb842c9480f9043ca7e1643cc21/FLAG63226c5b0 [2023-12-19 11:50:18,558 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/883b8fbfc/3c9bbeb842c9480f9043ca7e1643cc21 [2023-12-19 11:50:18,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 11:50:18,560 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 11:50:18,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 11:50:18,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 11:50:18,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 11:50:18,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2326088e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18, skipping insertion in model container [2023-12-19 11:50:18,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,595 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 11:50:18,691 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-25.i[915,928] [2023-12-19 11:50:18,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:50:18,728 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 11:50:18,736 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-25.i[915,928] [2023-12-19 11:50:18,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:50:18,765 INFO L206 MainTranslator]: Completed translation [2023-12-19 11:50:18,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18 WrapperNode [2023-12-19 11:50:18,766 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 11:50:18,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 11:50:18,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 11:50:18,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 11:50:18,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,796 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2023-12-19 11:50:18,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 11:50:18,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 11:50:18,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 11:50:18,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 11:50:18,807 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,820 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]. [2023-12-19 11:50:18,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,830 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,833 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 11:50:18,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 11:50:18,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 11:50:18,853 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 11:50:18,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (1/1) ... [2023-12-19 11:50:18,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:50:18,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:50:18,925 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) [2023-12-19 11:50:18,946 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 [2023-12-19 11:50:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 11:50:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 11:50:18,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 11:50:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 11:50:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 11:50:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 11:50:19,005 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 11:50:19,006 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 11:50:19,184 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 11:50:19,215 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 11:50:19,216 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 11:50:19,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:50:19 BoogieIcfgContainer [2023-12-19 11:50:19,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 11:50:19,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 11:50:19,219 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 11:50:19,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 11:50:19,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:50:18" (1/3) ... [2023-12-19 11:50:19,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fc2c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:50:19, skipping insertion in model container [2023-12-19 11:50:19,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:50:18" (2/3) ... [2023-12-19 11:50:19,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fc2c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:50:19, skipping insertion in model container [2023-12-19 11:50:19,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:50:19" (3/3) ... [2023-12-19 11:50:19,223 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-25.i [2023-12-19 11:50:19,236 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 11:50:19,237 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 11:50:19,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 11:50:19,273 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;@49ff61e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 11:50:19,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 11:50:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 27 states have internal predecessors, (35), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-19 11:50:19,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-19 11:50:19,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:50:19,287 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:50:19,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:50:19,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:50:19,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1188313540, now seen corresponding path program 1 times [2023-12-19 11:50:19,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:50:19,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403038099] [2023-12-19 11:50:19,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:50:19,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:50:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:50:19,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:50:19,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403038099] [2023-12-19 11:50:19,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 11:50:19,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283291766] [2023-12-19 11:50:19,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:50:19,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:50:19,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:50:19,463 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) [2023-12-19 11:50:19,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 11:50:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:50:19,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 11:50:19,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:50:19,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2023-12-19 11:50:19,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:50:19,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283291766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:50:19,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:50:19,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 11:50:19,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816675978] [2023-12-19 11:50:19,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:50:19,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 11:50:19,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:50:19,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 11:50:19,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:50:19,665 INFO L87 Difference]: Start difference. First operand has 52 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 27 states have internal predecessors, (35), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-19 11:50:19,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:50:19,703 INFO L93 Difference]: Finished difference Result 101 states and 183 transitions. [2023-12-19 11:50:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 11:50:19,705 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 135 [2023-12-19 11:50:19,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:50:19,711 INFO L225 Difference]: With dead ends: 101 [2023-12-19 11:50:19,711 INFO L226 Difference]: Without dead ends: 50 [2023-12-19 11:50:19,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:50:19,715 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:50:19,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:50:19,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-19 11:50:19,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-19 11:50:19,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-19 11:50:19,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 76 transitions. [2023-12-19 11:50:19,742 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 76 transitions. Word has length 135 [2023-12-19 11:50:19,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:50:19,742 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 76 transitions. [2023-12-19 11:50:19,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-19 11:50:19,743 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 76 transitions. [2023-12-19 11:50:19,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-19 11:50:19,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:50:19,746 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:50:19,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 11:50:19,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 11:50:19,952 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:50:19,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:50:19,953 INFO L85 PathProgramCache]: Analyzing trace with hash 807068218, now seen corresponding path program 1 times [2023-12-19 11:50:19,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:50:19,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724882943] [2023-12-19 11:50:19,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:50:19,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:50:20,005 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:50:20,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457070391] [2023-12-19 11:50:20,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:50:20,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:50:20,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:50:20,010 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) [2023-12-19 11:50:20,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 11:50:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:50:20,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-19 11:50:20,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:50:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 477 proven. 66 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-12-19 11:50:40,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 11:51:23,349 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (mod c_~var_1_1~0 4294967296)) (.cse5 (+ c_~var_1_13~0 1)) (.cse6 (+ (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296) 1))) (let ((.cse1 (forall ((~var_1_9~0 Int)) (or (< ~var_1_9~0 .cse5) (< (mod (div 127 ~var_1_9~0) 4294967296) .cse6)))) (.cse0 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse2 (= (mod c_~var_1_5~0 4294967296) .cse3))) (and (or .cse0 .cse1) (or .cse1 .cse2) (forall ((~var_1_9~0 Int)) (let ((.cse4 (mod (div 127 ~var_1_9~0) 4294967296))) (or (< .cse3 .cse4) (< ~var_1_9~0 .cse5) (< .cse4 .cse6)))) (let ((.cse7 (mod (div 127 c_~var_1_13~0) 4294967296))) (or (and .cse0 .cse2 (<= (+ .cse3 1) .cse7)) (< .cse7 .cse6)))))) is different from false [2023-12-19 11:51:28,203 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~var_1_1~0 4294967296))) (let ((.cse2 (+ .cse4 1))) (let ((.cse0 (= (mod c_~var_1_5~0 4294967296) .cse4)) (.cse3 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse1 (forall ((~var_1_9~0 Int)) (or (< (mod (div 127 ~var_1_9~0) 4294967296) .cse2) (< ~var_1_9~0 (+ c_~var_1_13~0 1)))))) (and (or .cse0 .cse1) (or (< (mod (div 127 c_~var_1_13~0) 4294967296) .cse2) (and .cse3 .cse0)) (or .cse3 .cse1))))) is different from false [2023-12-19 11:51:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-19 11:51:28,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:51:28,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724882943] [2023-12-19 11:51:28,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:51:28,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457070391] [2023-12-19 11:51:28,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457070391] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 11:51:28,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 11:51:28,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2023-12-19 11:51:28,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662297313] [2023-12-19 11:51:28,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:51:28,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 11:51:28,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:51:28,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 11:51:28,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=164, Unknown=2, NotChecked=54, Total=272 [2023-12-19 11:51:28,301 INFO L87 Difference]: Start difference. First operand 50 states and 76 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-19 11:51:30,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:51:30,225 INFO L93 Difference]: Finished difference Result 75 states and 106 transitions. [2023-12-19 11:51:30,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 11:51:30,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2023-12-19 11:51:30,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:51:30,228 INFO L225 Difference]: With dead ends: 75 [2023-12-19 11:51:30,228 INFO L226 Difference]: Without dead ends: 73 [2023-12-19 11:51:30,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=62, Invalid=216, Unknown=2, NotChecked=62, Total=342 [2023-12-19 11:51:30,229 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 102 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:51:30,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 367 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 102 Unchecked, 1.0s Time] [2023-12-19 11:51:30,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-19 11:51:30,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 66. [2023-12-19 11:51:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 37 states have internal predecessors, (43), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-19 11:51:30,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2023-12-19 11:51:30,253 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 135 [2023-12-19 11:51:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:51:30,254 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2023-12-19 11:51:30,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-19 11:51:30,254 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2023-12-19 11:51:30,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-19 11:51:30,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:51:30,256 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:51:30,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 11:51:30,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 11:51:30,457 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:51:30,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:51:30,457 INFO L85 PathProgramCache]: Analyzing trace with hash 807127800, now seen corresponding path program 1 times [2023-12-19 11:51:30,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:51:30,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122762808] [2023-12-19 11:51:30,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:51:30,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:51:30,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:51:30,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340139286] [2023-12-19 11:51:30,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:51:30,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:51:30,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:51:30,502 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:51:30,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 11:51:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:51:30,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-19 11:51:30,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:52:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 477 proven. 66 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-12-19 11:52:37,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 11:53:28,452 WARN L293 SmtUtils]: Spent 7.85s on a formula simplification. DAG size of input: 119 DAG size of output: 76 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 11:53:39,820 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (mod c_~var_1_1~0 4294967296)) (.cse5 (+ c_~var_1_13~0 1)) (.cse6 (+ (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296) 1))) (let ((.cse1 (forall ((~var_1_9~0 Int)) (or (< ~var_1_9~0 .cse5) (< (mod (div 127 ~var_1_9~0) 4294967296) .cse6)))) (.cse0 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse2 (= (mod c_~var_1_5~0 4294967296) .cse3))) (and (or .cse0 .cse1) (or .cse1 .cse2) (forall ((~var_1_9~0 Int)) (let ((.cse4 (mod (div 127 ~var_1_9~0) 4294967296))) (or (< .cse3 .cse4) (< ~var_1_9~0 .cse5) (< .cse4 .cse6)))) (let ((.cse7 (mod (div 127 c_~var_1_13~0) 4294967296))) (or (and .cse0 .cse2 (<= (+ .cse3 1) .cse7)) (< .cse7 .cse6)))))) is different from false [2023-12-19 11:53:44,216 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~var_1_1~0 4294967296))) (let ((.cse2 (+ .cse4 1))) (let ((.cse0 (= (mod c_~var_1_5~0 4294967296) .cse4)) (.cse3 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse1 (forall ((~var_1_9~0 Int)) (or (< (mod (div 127 ~var_1_9~0) 4294967296) .cse2) (< ~var_1_9~0 (+ c_~var_1_13~0 1)))))) (and (or .cse0 .cse1) (or (< (mod (div 127 c_~var_1_13~0) 4294967296) .cse2) (and .cse3 .cse0)) (or .cse3 .cse1))))) is different from false [2023-12-19 11:53:44,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-19 11:53:44,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:53:44,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122762808] [2023-12-19 11:53:44,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:53:44,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340139286] [2023-12-19 11:53:44,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340139286] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 11:53:44,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 11:53:44,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-12-19 11:53:44,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493963649] [2023-12-19 11:53:44,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:53:44,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 11:53:44,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:53:44,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 11:53:44,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=122, Unknown=2, NotChecked=46, Total=210 [2023-12-19 11:53:44,306 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-19 11:53:47,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:53:47,938 INFO L93 Difference]: Finished difference Result 72 states and 103 transitions. [2023-12-19 11:53:47,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 11:53:47,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2023-12-19 11:53:47,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:53:47,942 INFO L225 Difference]: With dead ends: 72 [2023-12-19 11:53:47,942 INFO L226 Difference]: Without dead ends: 70 [2023-12-19 11:53:47,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=45, Invalid=143, Unknown=2, NotChecked=50, Total=240 [2023-12-19 11:53:47,943 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 4 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 11:53:47,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 339 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 64 Unchecked, 0.7s Time] [2023-12-19 11:53:47,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-12-19 11:53:47,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2023-12-19 11:53:47,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 39 states have internal predecessors, (45), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-19 11:53:47,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2023-12-19 11:53:47,952 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 135 [2023-12-19 11:53:47,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:53:47,953 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2023-12-19 11:53:47,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-19 11:53:47,953 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2023-12-19 11:53:47,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-19 11:53:47,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:53:47,954 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:53:47,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 11:53:48,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:53:48,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:53:48,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:53:48,160 INFO L85 PathProgramCache]: Analyzing trace with hash 808915260, now seen corresponding path program 1 times [2023-12-19 11:53:48,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:53:48,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836097592] [2023-12-19 11:53:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:53:48,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:53:48,180 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:53:48,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772768101] [2023-12-19 11:53:48,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:53:48,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:53:48,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:53:48,181 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:53:48,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 11:53:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:53:48,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-19 11:53:48,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:54:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 477 proven. 66 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-12-19 11:54:00,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 11:54:46,229 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (mod c_~var_1_1~0 4294967296)) (.cse2 (+ c_~var_1_13~0 1)) (.cse3 (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296))) (let ((.cse4 (forall ((~var_1_9~0 Int)) (or (< ~var_1_9~0 .cse2) (< .cse3 (mod (div 127 ~var_1_9~0) 4294967296))))) (.cse6 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse5 (= (mod c_~var_1_5~0 4294967296) .cse1))) (and (forall ((~var_1_9~0 Int)) (let ((.cse0 (mod (div 127 ~var_1_9~0) 4294967296))) (or (< .cse0 (+ .cse1 1)) (< ~var_1_9~0 .cse2) (< .cse3 .cse0)))) (or .cse4 .cse5) (or .cse4 .cse6) (let ((.cse7 (mod (div 127 c_~var_1_13~0) 4294967296))) (or (and .cse6 .cse5 (<= .cse7 .cse1)) (< .cse3 .cse7)))))) is different from false [2023-12-19 11:54:47,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-19 11:54:47,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:54:47,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836097592] [2023-12-19 11:54:47,114 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:54:47,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772768101] [2023-12-19 11:54:47,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772768101] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 11:54:47,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 11:54:47,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2023-12-19 11:54:47,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763617316] [2023-12-19 11:54:47,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:54:47,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 11:54:47,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:54:47,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 11:54:47,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=185, Unknown=1, NotChecked=28, Total=272 [2023-12-19 11:54:47,118 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-19 11:54:51,617 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296)) (.cse2 (mod c_~var_1_1~0 4294967296)) (.cse5 (+ c_~var_1_13~0 1))) (let ((.cse7 (forall ((~var_1_9~0 Int)) (or (< .cse2 (mod (div 127 ~var_1_9~0) 4294967296)) (< ~var_1_9~0 .cse5)))) (.cse8 (forall ((~var_1_9~0 Int)) (or (< ~var_1_9~0 .cse5) (< .cse6 (mod (div 127 ~var_1_9~0) 4294967296))))) (.cse0 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse1 (= (mod c_~var_1_5~0 4294967296) .cse2)) (.cse3 (mod (div 127 c_~var_1_13~0) 4294967296))) (and (or (and .cse0 .cse1) (< .cse2 .cse3)) (forall ((~var_1_9~0 Int)) (let ((.cse4 (mod (div 127 ~var_1_9~0) 4294967296))) (or (< .cse4 (+ .cse2 1)) (< ~var_1_9~0 .cse5) (< .cse6 .cse4)))) (or .cse1 .cse7) (or .cse0 .cse7) (or .cse8 .cse1) (or .cse8 .cse0) (or (and .cse0 .cse1 (<= .cse3 .cse2)) (< .cse6 .cse3))))) is different from false [2023-12-19 11:54:52,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:54:52,797 INFO L93 Difference]: Finished difference Result 91 states and 126 transitions. [2023-12-19 11:54:52,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 11:54:52,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2023-12-19 11:54:52,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:54:52,799 INFO L225 Difference]: With dead ends: 91 [2023-12-19 11:54:52,799 INFO L226 Difference]: Without dead ends: 89 [2023-12-19 11:54:52,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=72, Invalid=240, Unknown=2, NotChecked=66, Total=380 [2023-12-19 11:54:52,800 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 35 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 11:54:52,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 288 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 44 Invalid, 0 Unknown, 55 Unchecked, 0.8s Time] [2023-12-19 11:54:52,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-19 11:54:52,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 69. [2023-12-19 11:54:52,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 39 states have (on average 1.205128205128205) internal successors, (47), 40 states have internal predecessors, (47), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-19 11:54:52,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 101 transitions. [2023-12-19 11:54:52,809 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 101 transitions. Word has length 135 [2023-12-19 11:54:52,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:54:52,809 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 101 transitions. [2023-12-19 11:54:52,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-19 11:54:52,809 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 101 transitions. [2023-12-19 11:54:52,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-19 11:54:52,810 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:54:52,810 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:54:52,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 11:54:53,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:54:53,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:54:53,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:54:53,012 INFO L85 PathProgramCache]: Analyzing trace with hash 808974842, now seen corresponding path program 1 times [2023-12-19 11:54:53,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:54:53,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300393824] [2023-12-19 11:54:53,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:54:53,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:54:53,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:54:53,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [844495528] [2023-12-19 11:54:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:54:53,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:54:53,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:54:53,028 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:54:53,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 11:54:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:54:53,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-19 11:54:53,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:55:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 477 proven. 66 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2023-12-19 11:55:26,004 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 11:56:34,904 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (mod c_~var_1_1~0 4294967296)) (.cse2 (+ c_~var_1_13~0 1)) (.cse3 (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296))) (let ((.cse4 (forall ((~var_1_9~0 Int)) (or (< ~var_1_9~0 .cse2) (< .cse3 (mod (div 127 ~var_1_9~0) 4294967296))))) (.cse6 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse5 (= (mod c_~var_1_5~0 4294967296) .cse1))) (and (forall ((~var_1_9~0 Int)) (let ((.cse0 (mod (div 127 ~var_1_9~0) 4294967296))) (or (< .cse0 (+ .cse1 1)) (< ~var_1_9~0 .cse2) (< .cse3 .cse0)))) (or .cse4 .cse5) (or .cse4 .cse6) (let ((.cse7 (mod (div 127 c_~var_1_13~0) 4294967296))) (or (and .cse6 .cse5 (<= .cse7 .cse1)) (< .cse3 .cse7)))))) is different from false [2023-12-19 11:56:36,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-19 11:56:36,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:56:36,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300393824] [2023-12-19 11:56:36,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:56:36,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844495528] [2023-12-19 11:56:36,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844495528] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 11:56:36,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 11:56:36,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-12-19 11:56:36,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147747912] [2023-12-19 11:56:36,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:56:36,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 11:56:36,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:56:36,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 11:56:36,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=139, Unknown=1, NotChecked=24, Total=210 [2023-12-19 11:56:36,283 INFO L87 Difference]: Start difference. First operand 69 states and 101 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-19 11:56:41,061 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (mod |c_ULTIMATE.start_step_~stepLocal_1~0#1| 4294967296)) (.cse2 (mod c_~var_1_1~0 4294967296)) (.cse5 (+ c_~var_1_13~0 1))) (let ((.cse7 (forall ((~var_1_9~0 Int)) (or (< .cse2 (mod (div 127 ~var_1_9~0) 4294967296)) (< ~var_1_9~0 .cse5)))) (.cse8 (forall ((~var_1_9~0 Int)) (or (< ~var_1_9~0 .cse5) (< .cse6 (mod (div 127 ~var_1_9~0) 4294967296))))) (.cse0 (= (mod c_~last_1_var_1_6~0 256) 0)) (.cse1 (= (mod c_~var_1_5~0 4294967296) .cse2)) (.cse3 (mod (div 127 c_~var_1_13~0) 4294967296))) (and (or (and .cse0 .cse1) (< .cse2 .cse3)) (forall ((~var_1_9~0 Int)) (let ((.cse4 (mod (div 127 ~var_1_9~0) 4294967296))) (or (< .cse4 (+ .cse2 1)) (< ~var_1_9~0 .cse5) (< .cse6 .cse4)))) (or .cse1 .cse7) (or .cse0 .cse7) (or .cse8 .cse1) (or .cse8 .cse0) (or (and .cse0 .cse1 (<= .cse3 .cse2)) (< .cse6 .cse3))))) is different from false [2023-12-19 11:56:43,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:56:43,429 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2023-12-19 11:56:43,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 11:56:43,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2023-12-19 11:56:43,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:56:43,431 INFO L225 Difference]: With dead ends: 79 [2023-12-19 11:56:43,431 INFO L226 Difference]: Without dead ends: 77 [2023-12-19 11:56:43,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=54, Invalid=162, Unknown=2, NotChecked=54, Total=272 [2023-12-19 11:56:43,432 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 8 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-19 11:56:43,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 311 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 36 Unchecked, 0.9s Time] [2023-12-19 11:56:43,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-12-19 11:56:43,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 68. [2023-12-19 11:56:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 39 states have internal predecessors, (45), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-19 11:56:43,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2023-12-19 11:56:43,440 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 135 [2023-12-19 11:56:43,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:56:43,441 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2023-12-19 11:56:43,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-19 11:56:43,441 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2023-12-19 11:56:43,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-19 11:56:43,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:56:43,442 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:56:43,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-19 11:56:43,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:56:43,651 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:56:43,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:56:43,651 INFO L85 PathProgramCache]: Analyzing trace with hash 475337748, now seen corresponding path program 1 times [2023-12-19 11:56:43,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:56:43,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221944113] [2023-12-19 11:56:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:56:43,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:56:43,674 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:56:43,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365872854] [2023-12-19 11:56:43,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:56:43,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:56:43,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:56:43,678 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:56:43,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 11:56:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:56:43,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 11:56:43,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:56:44,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-19 11:56:44,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:56:44,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:56:44,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221944113] [2023-12-19 11:56:44,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:56:44,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365872854] [2023-12-19 11:56:44,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365872854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:56:44,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:56:44,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 11:56:44,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443184531] [2023-12-19 11:56:44,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:56:44,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 11:56:44,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:56:44,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 11:56:44,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 11:56:44,275 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-19 11:56:44,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:56:44,386 INFO L93 Difference]: Finished difference Result 192 states and 279 transitions. [2023-12-19 11:56:44,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 11:56:44,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2023-12-19 11:56:44,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:56:44,390 INFO L225 Difference]: With dead ends: 192 [2023-12-19 11:56:44,391 INFO L226 Difference]: Without dead ends: 125 [2023-12-19 11:56:44,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 11:56:44,404 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 40 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:56:44,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 214 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:56:44,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-12-19 11:56:44,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 111. [2023-12-19 11:56:44,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 57 states have (on average 1.1403508771929824) internal successors, (65), 58 states have internal predecessors, (65), 50 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 11:56:44,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 165 transitions. [2023-12-19 11:56:44,424 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 165 transitions. Word has length 136 [2023-12-19 11:56:44,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:56:44,425 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 165 transitions. [2023-12-19 11:56:44,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-12-19 11:56:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 165 transitions. [2023-12-19 11:56:44,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-19 11:56:44,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:56:44,427 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:56:44,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 11:56:44,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:56:44,628 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:56:44,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:56:44,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1763905621, now seen corresponding path program 1 times [2023-12-19 11:56:44,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:56:44,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374160505] [2023-12-19 11:56:44,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:56:44,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:56:44,642 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:56:44,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236700548] [2023-12-19 11:56:44,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:56:44,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:56:44,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:56:44,652 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:56:44,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 11:56:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:56:44,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-19 11:56:44,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:56:45,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4181 backedges. 1761 proven. 939 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2023-12-19 11:56:45,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 11:56:46,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4181 backedges. 65 proven. 111 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked. [2023-12-19 11:56:46,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:56:46,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374160505] [2023-12-19 11:56:46,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:56:46,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236700548] [2023-12-19 11:56:46,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236700548] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 11:56:46,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 11:56:46,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-19 11:56:46,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224993565] [2023-12-19 11:56:46,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 11:56:46,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 11:56:46,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:56:46,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 11:56:46,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-19 11:56:46,542 INFO L87 Difference]: Start difference. First operand 111 states and 165 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2023-12-19 11:56:47,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:56:47,242 INFO L93 Difference]: Finished difference Result 226 states and 328 transitions. [2023-12-19 11:56:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 11:56:47,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) Word has length 270 [2023-12-19 11:56:47,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:56:47,243 INFO L225 Difference]: With dead ends: 226 [2023-12-19 11:56:47,243 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 11:56:47,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 529 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2023-12-19 11:56:47,245 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 67 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 11:56:47,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 77 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 11:56:47,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 11:56:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 11:56:47,246 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) [2023-12-19 11:56:47,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 11:56:47,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 270 [2023-12-19 11:56:47,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:56:47,246 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 11:56:47,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2023-12-19 11:56:47,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 11:56:47,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 11:56:47,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 11:56:47,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 11:56:47,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:56:47,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 11:56:50,133 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,133 INFO L895 garLoopResultBuilder]: At program point L93-1(line 93) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,133 INFO L899 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2023-12-19 11:56:50,134 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-19 11:56:50,134 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-19 11:56:50,134 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-12-19 11:56:50,134 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-19 11:56:50,134 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,134 INFO L895 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,134 INFO L895 garLoopResultBuilder]: At program point L106-2(lines 106 112) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,134 INFO L899 garLoopResultBuilder]: For program point L106-3(lines 106 112) no Hoare annotation was computed. [2023-12-19 11:56:50,134 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-12-19 11:56:50,134 INFO L895 garLoopResultBuilder]: At program point L65(line 65) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,134 INFO L895 garLoopResultBuilder]: At program point L65-1(line 65) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,134 INFO L899 garLoopResultBuilder]: For program point L94(lines 60 95) no Hoare annotation was computed. [2023-12-19 11:56:50,134 INFO L895 garLoopResultBuilder]: At program point L90(line 90) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,134 INFO L895 garLoopResultBuilder]: At program point L90-1(line 90) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,135 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-19 11:56:50,135 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2023-12-19 11:56:50,135 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 39 59) no Hoare annotation was computed. [2023-12-19 11:56:50,135 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-12-19 11:56:50,135 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,135 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,135 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 47) no Hoare annotation was computed. [2023-12-19 11:56:50,135 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 41 47) no Hoare annotation was computed. [2023-12-19 11:56:50,135 INFO L899 garLoopResultBuilder]: For program point L66(line 66) no Hoare annotation was computed. [2023-12-19 11:56:50,135 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 11:56:50,135 INFO L895 garLoopResultBuilder]: At program point L62(line 62) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,135 INFO L895 garLoopResultBuilder]: At program point L62-1(line 62) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,135 INFO L899 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2023-12-19 11:56:50,135 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,135 INFO L895 garLoopResultBuilder]: At program point L87-1(line 87) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,135 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,136 INFO L895 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,136 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-19 11:56:50,136 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 44) no Hoare annotation was computed. [2023-12-19 11:56:50,136 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 11:56:50,136 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,136 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,136 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2023-12-19 11:56:50,136 INFO L899 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2023-12-19 11:56:50,136 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,136 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0)) [2023-12-19 11:56:50,136 INFO L895 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0)) [2023-12-19 11:56:50,136 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-19 11:56:50,136 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 59) no Hoare annotation was computed. [2023-12-19 11:56:50,136 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,136 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (and (<= (mod ~var_1_6~0 256) 0) (<= (mod ~last_1_var_1_6~0 256) 0) (<= (mod ~var_1_11~0 256) 0)) [2023-12-19 11:56:50,137 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-19 11:56:50,137 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-19 11:56:50,137 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-19 11:56:50,137 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-19 11:56:50,139 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:56:50,140 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 11:56:50,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:56:50 BoogieIcfgContainer [2023-12-19 11:56:50,148 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 11:56:50,148 INFO L158 Benchmark]: Toolchain (without parser) took 391588.05ms. Allocated memory was 291.5MB in the beginning and 986.7MB in the end (delta: 695.2MB). Free memory was 248.0MB in the beginning and 572.1MB in the end (delta: -324.1MB). Peak memory consumption was 372.1MB. Max. memory is 8.0GB. [2023-12-19 11:56:50,149 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 11:56:50,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.71ms. Allocated memory is still 291.5MB. Free memory was 247.6MB in the beginning and 235.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 11:56:50,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.75ms. Allocated memory is still 291.5MB. Free memory was 235.0MB in the beginning and 232.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 11:56:50,149 INFO L158 Benchmark]: Boogie Preprocessor took 55.34ms. Allocated memory is still 291.5MB. Free memory was 232.9MB in the beginning and 230.2MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 11:56:50,149 INFO L158 Benchmark]: RCFGBuilder took 364.69ms. Allocated memory is still 291.5MB. Free memory was 230.2MB in the beginning and 212.4MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-19 11:56:50,150 INFO L158 Benchmark]: TraceAbstraction took 390929.27ms. Allocated memory was 291.5MB in the beginning and 986.7MB in the end (delta: 695.2MB). Free memory was 211.9MB in the beginning and 572.1MB in the end (delta: -360.2MB). Peak memory consumption was 336.4MB. Max. memory is 8.0GB. [2023-12-19 11:56:50,151 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 204.71ms. Allocated memory is still 291.5MB. Free memory was 247.6MB in the beginning and 235.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.75ms. Allocated memory is still 291.5MB. Free memory was 235.0MB in the beginning and 232.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.34ms. Allocated memory is still 291.5MB. Free memory was 232.9MB in the beginning and 230.2MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 364.69ms. Allocated memory is still 291.5MB. Free memory was 230.2MB in the beginning and 212.4MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 390929.27ms. Allocated memory was 291.5MB in the beginning and 986.7MB in the end (delta: 695.2MB). Free memory was 211.9MB in the beginning and 572.1MB in the end (delta: -360.2MB). Peak memory consumption was 336.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: 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 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 390.9s, OverallIterations: 7, TraceHistogramMax: 46, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 176 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 176 mSDsluCounter, 1669 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 257 IncrementalHoareTripleChecker+Unchecked, 1171 mSDsCounter, 167 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 420 IncrementalHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 167 mSolverCounterUnsat, 498 mSDtfsCounter, 420 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1897 GetRequests, 1812 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 62.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=6, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 52 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 174 PreInvPairs, 227 NumberOfFragments, 375 HoareAnnotationTreeSize, 174 FormulaSimplifications, 3317 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 25 FormulaSimplificationsInter, 2627 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 366.3s InterpolantComputationTime, 1216 NumberOfCodeBlocks, 1216 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1879 ConstructedInterpolants, 8 QuantifiedInterpolants, 6957 SizeOfPredicates, 127 NumberOfNonLiveVariables, 2398 ConjunctsInSsa, 134 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 17168/18482 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: 106]: Loop Invariant Derived loop invariant: ((((var_1_6 % 256) <= 0) && ((last_1_var_1_6 % 256) <= 0)) && ((var_1_11 % 256) <= 0)) RESULT: Ultimate proved your program to be correct! [2023-12-19 11:56:50,360 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-19 11:56:50,417 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 137 Received shutdown request...