/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-25.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 22:53:42,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 22:53:42,083 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 22:53:42,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 22:53:42,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 22:53:42,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 22:53:42,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 22:53:42,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 22:53:42,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 22:53:42,114 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 22:53:42,114 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 22:53:42,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 22:53:42,115 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 22:53:42,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 22:53:42,116 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 22:53:42,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 22:53:42,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 22:53:42,116 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 22:53:42,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 22:53:42,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 22:53:42,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 22:53:42,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 22:53:42,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 22:53:42,117 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 22:53:42,117 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 22:53:42,117 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 22:53:42,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 22:53:42,118 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 22:53:42,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 22:53:42,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 22:53:42,119 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 22:53:42,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 22:53:42,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:53:42,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 22:53:42,120 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 22:53:42,120 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 22:53:42,120 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 22:53:42,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 22:53:42,120 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 22:53:42,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 22:53:42,120 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 22:53:42,121 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 22:53:42,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 22:53:42,121 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 22:53:42,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 22:53:42,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 22:53:42,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 22:53:42,289 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 22:53:42,289 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 22:53:42,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-25.i [2023-12-20 22:53:43,324 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 22:53:43,446 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 22:53:43,446 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-25.i [2023-12-20 22:53:43,452 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a2fea529/369fabcbb3f641d58bf4515dd38677bb/FLAG09b4fc242 [2023-12-20 22:53:43,878 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a2fea529/369fabcbb3f641d58bf4515dd38677bb [2023-12-20 22:53:43,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 22:53:43,880 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 22:53:43,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 22:53:43,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 22:53:43,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 22:53:43,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:53:43" (1/1) ... [2023-12-20 22:53:43,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d434e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:43, skipping insertion in model container [2023-12-20 22:53:43,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:53:43" (1/1) ... [2023-12-20 22:53:43,916 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 22:53:44,027 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_25-1loop_file-25.i[915,928] [2023-12-20 22:53:44,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:53:44,077 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 22:53:44,084 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_25-1loop_file-25.i[915,928] [2023-12-20 22:53:44,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:53:44,106 INFO L206 MainTranslator]: Completed translation [2023-12-20 22:53:44,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44 WrapperNode [2023-12-20 22:53:44,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 22:53:44,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 22:53:44,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 22:53:44,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 22:53:44,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,138 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2023-12-20 22:53:44,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 22:53:44,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 22:53:44,139 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 22:53:44,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 22:53:44,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,168 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]. [2023-12-20 22:53:44,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,174 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 22:53:44,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 22:53:44,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 22:53:44,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 22:53:44,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (1/1) ... [2023-12-20 22:53:44,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:53:44,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:53:44,252 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) [2023-12-20 22:53:44,271 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 [2023-12-20 22:53:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 22:53:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 22:53:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 22:53:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 22:53:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 22:53:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 22:53:44,368 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 22:53:44,370 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 22:53:44,565 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 22:53:44,606 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 22:53:44,607 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 22:53:44,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:53:44 BoogieIcfgContainer [2023-12-20 22:53:44,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 22:53:44,608 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 22:53:44,609 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 22:53:44,611 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 22:53:44,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 10:53:43" (1/3) ... [2023-12-20 22:53:44,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb8dd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:53:44, skipping insertion in model container [2023-12-20 22:53:44,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:53:44" (2/3) ... [2023-12-20 22:53:44,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb8dd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:53:44, skipping insertion in model container [2023-12-20 22:53:44,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:53:44" (3/3) ... [2023-12-20 22:53:44,612 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-25.i [2023-12-20 22:53:44,623 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 22:53:44,623 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 22:53:44,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 22:53:44,659 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;@2509fce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 22:53:44,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 22:53:44,662 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) [2023-12-20 22:53:44,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 22:53:44,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:53:44,672 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] [2023-12-20 22:53:44,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:53:44,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:53:44,676 INFO L85 PathProgramCache]: Analyzing trace with hash -778079813, now seen corresponding path program 1 times [2023-12-20 22:53:44,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:53:44,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877840387] [2023-12-20 22:53:44,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:53:44,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:53:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:53:44,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:53:44,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877840387] [2023-12-20 22:53:44,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-20 22:53:44,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757774874] [2023-12-20 22:53:44,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:53:44,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:53:44,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:53:44,800 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) [2023-12-20 22:53:44,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 22:53:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:53:44,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-20 22:53:44,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:53:44,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2023-12-20 22:53:44,967 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:53:44,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757774874] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:53:44,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:53:44,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 22:53:44,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706863331] [2023-12-20 22:53:44,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:53:44,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 22:53:44,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:53:44,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 22:53:44,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:53:44,990 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) [2023-12-20 22:53:45,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:53:45,023 INFO L93 Difference]: Finished difference Result 103 states and 184 transitions. [2023-12-20 22:53:45,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 22:53:45,025 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 [2023-12-20 22:53:45,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:53:45,031 INFO L225 Difference]: With dead ends: 103 [2023-12-20 22:53:45,031 INFO L226 Difference]: Without dead ends: 50 [2023-12-20 22:53:45,033 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 [2023-12-20 22:53:45,037 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 22:53:45,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:53:45,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-20 22:53:45,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-20 22:53:45,069 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) [2023-12-20 22:53:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 76 transitions. [2023-12-20 22:53:45,076 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 76 transitions. Word has length 135 [2023-12-20 22:53:45,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:53:45,076 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 76 transitions. [2023-12-20 22:53:45,077 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) [2023-12-20 22:53:45,077 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 76 transitions. [2023-12-20 22:53:45,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 22:53:45,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:53:45,083 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] [2023-12-20 22:53:45,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 22:53:45,290 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 [2023-12-20 22:53:45,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:53:45,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:53:45,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1217301945, now seen corresponding path program 1 times [2023-12-20 22:53:45,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:53:45,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003395353] [2023-12-20 22:53:45,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:53:45,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:53:45,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:53:45,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260100230] [2023-12-20 22:53:45,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:53:45,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:53:45,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:53:45,346 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) [2023-12-20 22:53:45,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 22:53:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:53:45,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-20 22:53:45,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:54:04,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-20 22:54:04,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:54:04,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:54:04,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003395353] [2023-12-20 22:54:04,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:54:04,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260100230] [2023-12-20 22:54:04,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260100230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:54:04,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:54:04,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 22:54:04,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771028835] [2023-12-20 22:54:04,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:54:04,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 22:54:04,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:54:04,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 22:54:04,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-20 22:54:04,773 INFO L87 Difference]: Start difference. First operand 50 states and 76 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 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) [2023-12-20 22:54:05,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:54:05,450 INFO L93 Difference]: Finished difference Result 191 states and 276 transitions. [2023-12-20 22:54:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 22:54:05,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 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 [2023-12-20 22:54:05,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:54:05,452 INFO L225 Difference]: With dead ends: 191 [2023-12-20 22:54:05,452 INFO L226 Difference]: Without dead ends: 142 [2023-12-20 22:54:05,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-12-20 22:54:05,454 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 103 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 22:54:05,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 339 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 22:54:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-20 22:54:05,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 112. [2023-12-20 22:54:05,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 59 states have internal predecessors, (68), 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) [2023-12-20 22:54:05,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 168 transitions. [2023-12-20 22:54:05,477 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 168 transitions. Word has length 135 [2023-12-20 22:54:05,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:54:05,479 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 168 transitions. [2023-12-20 22:54:05,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 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) [2023-12-20 22:54:05,479 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 168 transitions. [2023-12-20 22:54:05,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 22:54:05,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:54:05,482 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] [2023-12-20 22:54:05,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 22:54:05,687 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 [2023-12-20 22:54:05,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:54:05,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:54:05,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1217361527, now seen corresponding path program 1 times [2023-12-20 22:54:05,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:54:05,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317820504] [2023-12-20 22:54:05,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:54:05,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:54:05,733 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:54:05,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62860929] [2023-12-20 22:54:05,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:54:05,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:54:05,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:54:05,743 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) [2023-12-20 22:54:05,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 22:54:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:54:05,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-20 22:54:05,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:55:10,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-20 22:55:10,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:55:10,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:55:10,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317820504] [2023-12-20 22:55:10,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:55:10,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62860929] [2023-12-20 22:55:10,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62860929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:55:10,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:55:10,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 22:55:10,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646911479] [2023-12-20 22:55:10,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:55:10,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 22:55:10,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:55:10,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 22:55:10,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-20 22:55:10,028 INFO L87 Difference]: Start difference. First operand 112 states and 168 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) [2023-12-20 22:55:11,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:55:11,880 INFO L93 Difference]: Finished difference Result 140 states and 200 transitions. [2023-12-20 22:55:11,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 22:55:11,881 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 [2023-12-20 22:55:11,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:55:11,883 INFO L225 Difference]: With dead ends: 140 [2023-12-20 22:55:11,883 INFO L226 Difference]: Without dead ends: 138 [2023-12-20 22:55:11,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-20 22:55:11,884 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 24 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 22:55:11,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 270 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 22:55:11,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-20 22:55:11,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 117. [2023-12-20 22:55:11,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 63 states have (on average 1.1904761904761905) internal successors, (75), 64 states have internal predecessors, (75), 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) [2023-12-20 22:55:11,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 175 transitions. [2023-12-20 22:55:11,897 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 175 transitions. Word has length 135 [2023-12-20 22:55:11,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:55:11,897 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 175 transitions. [2023-12-20 22:55:11,898 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) [2023-12-20 22:55:11,898 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 175 transitions. [2023-12-20 22:55:11,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 22:55:11,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:55:11,899 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] [2023-12-20 22:55:11,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 22:55:12,103 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 [2023-12-20 22:55:12,105 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:55:12,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:55:12,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1219148987, now seen corresponding path program 1 times [2023-12-20 22:55:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:55:12,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665748807] [2023-12-20 22:55:12,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:55:12,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:55:12,123 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:55:12,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108505446] [2023-12-20 22:55:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:55:12,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:55:12,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:55:12,140 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) [2023-12-20 22:55:12,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 22:55:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:55:12,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-20 22:55:12,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:55:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-20 22:55:23,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:55:23,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:55:23,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665748807] [2023-12-20 22:55:23,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:55:23,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108505446] [2023-12-20 22:55:23,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108505446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:55:23,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:55:23,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 22:55:23,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819905333] [2023-12-20 22:55:23,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:55:23,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 22:55:23,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:55:23,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 22:55:23,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-20 22:55:23,455 INFO L87 Difference]: Start difference. First operand 117 states and 175 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 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) [2023-12-20 22:55:24,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:55:24,378 INFO L93 Difference]: Finished difference Result 145 states and 204 transitions. [2023-12-20 22:55:24,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 22:55:24,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 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 [2023-12-20 22:55:24,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:55:24,380 INFO L225 Difference]: With dead ends: 145 [2023-12-20 22:55:24,380 INFO L226 Difference]: Without dead ends: 143 [2023-12-20 22:55:24,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-12-20 22:55:24,381 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 76 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 22:55:24,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 361 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 22:55:24,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-12-20 22:55:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 115. [2023-12-20 22:55:24,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 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) [2023-12-20 22:55:24,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2023-12-20 22:55:24,394 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 135 [2023-12-20 22:55:24,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:55:24,394 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2023-12-20 22:55:24,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 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) [2023-12-20 22:55:24,394 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2023-12-20 22:55:24,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 22:55:24,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:55:24,395 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] [2023-12-20 22:55:24,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 22:55:24,596 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 [2023-12-20 22:55:24,596 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:55:24,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:55:24,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1219208569, now seen corresponding path program 1 times [2023-12-20 22:55:24,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:55:24,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374874676] [2023-12-20 22:55:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:55:24,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:55:24,617 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:55:24,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241929432] [2023-12-20 22:55:24,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:55:24,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:55:24,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:55:24,619 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) [2023-12-20 22:55:24,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 22:55:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:55:24,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-20 22:55:24,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:55:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-12-20 22:55:55,899 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:55:55,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:55:55,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374874676] [2023-12-20 22:55:55,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:55:55,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241929432] [2023-12-20 22:55:55,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241929432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:55:55,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:55:55,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 22:55:55,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115866640] [2023-12-20 22:55:55,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:55:55,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 22:55:55,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:55:55,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 22:55:55,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-20 22:55:55,901 INFO L87 Difference]: Start difference. First operand 115 states and 172 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) [2023-12-20 22:55:59,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:55:59,153 INFO L93 Difference]: Finished difference Result 140 states and 198 transitions. [2023-12-20 22:55:59,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 22:55:59,154 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 [2023-12-20 22:55:59,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:55:59,155 INFO L225 Difference]: With dead ends: 140 [2023-12-20 22:55:59,155 INFO L226 Difference]: Without dead ends: 138 [2023-12-20 22:55:59,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-20 22:55:59,156 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 19 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 22:55:59,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 363 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 22:55:59,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-20 22:55:59,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 114. [2023-12-20 22:55:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 61 states have internal predecessors, (70), 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) [2023-12-20 22:55:59,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 170 transitions. [2023-12-20 22:55:59,174 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 170 transitions. Word has length 135 [2023-12-20 22:55:59,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:55:59,175 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 170 transitions. [2023-12-20 22:55:59,175 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) [2023-12-20 22:55:59,175 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 170 transitions. [2023-12-20 22:55:59,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-12-20 22:55:59,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:55:59,184 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, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:55:59,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-20 22:55:59,388 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 [2023-12-20 22:55:59,389 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:55:59,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:55:59,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1921551449, now seen corresponding path program 1 times [2023-12-20 22:55:59,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:55:59,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889292112] [2023-12-20 22:55:59,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:55:59,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:55:59,407 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:55:59,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968951803] [2023-12-20 22:55:59,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:55:59,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:55:59,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:55:59,409 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) [2023-12-20 22:55:59,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 22:55:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:55:59,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 22:55:59,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:55:59,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4181 backedges. 2157 proven. 0 refuted. 0 times theorem prover too weak. 2024 trivial. 0 not checked. [2023-12-20 22:55:59,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:55:59,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:55:59,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889292112] [2023-12-20 22:55:59,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:55:59,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968951803] [2023-12-20 22:55:59,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968951803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:55:59,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:55:59,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 22:55:59,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840175986] [2023-12-20 22:55:59,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:55:59,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 22:55:59,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:55:59,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 22:55:59,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 22:55:59,578 INFO L87 Difference]: Start difference. First operand 114 states and 170 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-20 22:55:59,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:55:59,613 INFO L93 Difference]: Finished difference Result 165 states and 245 transitions. [2023-12-20 22:55:59,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 22:55:59,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 269 [2023-12-20 22:55:59,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:55:59,614 INFO L225 Difference]: With dead ends: 165 [2023-12-20 22:55:59,614 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 22:55:59,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 22:55:59,615 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 22:55:59,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 137 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:55:59,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 22:55:59,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 22:55:59,616 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) [2023-12-20 22:55:59,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 22:55:59,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 269 [2023-12-20 22:55:59,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:55:59,617 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 22:55:59,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-20 22:55:59,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 22:55:59,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 22:55:59,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 22:55:59,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 22:55:59,824 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 [2023-12-20 22:55:59,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 22:55:59,938 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,938 INFO L895 garLoopResultBuilder]: At program point L93-1(line 93) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,938 INFO L899 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2023-12-20 22:55:59,938 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-20 22:55:59,938 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-20 22:55:59,938 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-12-20 22:55:59,938 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-20 22:55:59,938 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,938 INFO L895 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,938 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-12-20 22:55:59,938 INFO L895 garLoopResultBuilder]: At program point L65(line 65) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,938 INFO L895 garLoopResultBuilder]: At program point L65-1(line 65) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,939 INFO L899 garLoopResultBuilder]: For program point L94(lines 60 95) no Hoare annotation was computed. [2023-12-20 22:55:59,939 INFO L895 garLoopResultBuilder]: At program point L90(line 90) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,939 INFO L895 garLoopResultBuilder]: At program point L90-1(line 90) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,939 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-20 22:55:59,939 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2023-12-20 22:55:59,939 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 39 59) no Hoare annotation was computed. [2023-12-20 22:55:59,939 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-12-20 22:55:59,939 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,939 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,939 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 47) no Hoare annotation was computed. [2023-12-20 22:55:59,939 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 41 47) no Hoare annotation was computed. [2023-12-20 22:55:59,939 INFO L895 garLoopResultBuilder]: At program point L107-3(lines 107 113) the Hoare annotation is: (or (and (= ~var_1_6~0 0) (= |ULTIMATE.start_main_~k_loop~0#1| 0)) (< 0 |ULTIMATE.start_main_~k_loop~0#1|)) [2023-12-20 22:55:59,939 INFO L899 garLoopResultBuilder]: For program point L107-4(lines 107 113) no Hoare annotation was computed. [2023-12-20 22:55:59,940 INFO L899 garLoopResultBuilder]: For program point L66(line 66) no Hoare annotation was computed. [2023-12-20 22:55:59,940 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-20 22:55:59,940 INFO L895 garLoopResultBuilder]: At program point L62(line 62) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,940 INFO L895 garLoopResultBuilder]: At program point L62-1(line 62) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,940 INFO L899 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2023-12-20 22:55:59,940 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,940 INFO L895 garLoopResultBuilder]: At program point L87-1(line 87) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,940 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,940 INFO L895 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,940 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-20 22:55:59,940 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 44) no Hoare annotation was computed. [2023-12-20 22:55:59,940 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-20 22:55:59,940 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,941 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,941 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2023-12-20 22:55:59,941 INFO L899 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2023-12-20 22:55:59,941 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,941 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,941 INFO L895 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,941 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-20 22:55:59,941 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 59) no Hoare annotation was computed. [2023-12-20 22:55:59,941 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,941 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (and (= ~var_1_6~0 0) (<= 0 |ULTIMATE.start_main_~k_loop~0#1|) (= ~last_1_var_1_6~0 0)) [2023-12-20 22:55:59,941 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-20 22:55:59,941 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-20 22:55:59,941 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-20 22:55:59,941 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-20 22:55:59,943 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-20 22:55:59,960 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 22:55:59,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 10:55:59 BoogieIcfgContainer [2023-12-20 22:55:59,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 22:55:59,967 INFO L158 Benchmark]: Toolchain (without parser) took 136087.20ms. Allocated memory was 229.6MB in the beginning and 1.0GB in the end (delta: 772.8MB). Free memory was 185.5MB in the beginning and 404.0MB in the end (delta: -218.5MB). Peak memory consumption was 555.9MB. Max. memory is 8.0GB. [2023-12-20 22:55:59,968 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory was 139.7MB in the beginning and 139.6MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 22:55:59,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.91ms. Allocated memory is still 229.6MB. Free memory was 185.0MB in the beginning and 172.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-20 22:55:59,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.33ms. Allocated memory is still 229.6MB. Free memory was 172.3MB in the beginning and 170.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 22:55:59,968 INFO L158 Benchmark]: Boogie Preprocessor took 46.38ms. Allocated memory is still 229.6MB. Free memory was 170.3MB in the beginning and 167.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 22:55:59,968 INFO L158 Benchmark]: RCFGBuilder took 420.95ms. Allocated memory is still 229.6MB. Free memory was 167.7MB in the beginning and 149.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-20 22:55:59,968 INFO L158 Benchmark]: TraceAbstraction took 135358.62ms. Allocated memory was 229.6MB in the beginning and 1.0GB in the end (delta: 772.8MB). Free memory was 148.3MB in the beginning and 404.0MB in the end (delta: -255.7MB). Peak memory consumption was 518.2MB. Max. memory is 8.0GB. [2023-12-20 22:55:59,969 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 190.8MB. Free memory was 139.7MB in the beginning and 139.6MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 225.91ms. Allocated memory is still 229.6MB. Free memory was 185.0MB in the beginning and 172.3MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.33ms. Allocated memory is still 229.6MB. Free memory was 172.3MB in the beginning and 170.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.38ms. Allocated memory is still 229.6MB. Free memory was 170.3MB in the beginning and 167.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 420.95ms. Allocated memory is still 229.6MB. Free memory was 167.7MB in the beginning and 149.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 135358.62ms. Allocated memory was 229.6MB in the beginning and 1.0GB in the end (delta: 772.8MB). Free memory was 148.3MB in the beginning and 404.0MB in the end (delta: -255.7MB). Peak memory consumption was 518.2MB. 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: 135.3s, OverallIterations: 6, TraceHistogramMax: 46, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 224 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 224 mSDsluCounter, 1543 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1090 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 596 IncrementalHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 453 mSDtfsCounter, 596 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 958 GetRequests, 912 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=3, InterpolantAutomatonStates: 52, 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, 6 MinimizatonAttempts, 103 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 143 PreInvPairs, 169 NumberOfFragments, 242 HoareAnnotationTreeSize, 143 FormulaSimplifications, 2194 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FormulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 126.1s InterpolantComputationTime, 1079 NumberOfCodeBlocks, 1079 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 938 ConstructedInterpolants, 0 QuantifiedInterpolants, 2142 SizeOfPredicates, 78 NumberOfNonLiveVariables, 2113 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 9241/9241 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: 107]: Loop Invariant Derived loop invariant: (((var_1_6 == 0) && (k_loop == 0)) || (0 < k_loop)) RESULT: Ultimate proved your program to be correct! [2023-12-20 22:56:00,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...