/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-36.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 09:10:42,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 09:10:42,188 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 09:10:42,192 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 09:10:42,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 09:10:42,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 09:10:42,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 09:10:42,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 09:10:42,263 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 09:10:42,266 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 09:10:42,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 09:10:42,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 09:10:42,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 09:10:42,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 09:10:42,303 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 09:10:42,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 09:10:42,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 09:10:42,319 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 09:10:42,319 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 09:10:42,320 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 09:10:42,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 09:10:42,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 09:10:42,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 09:10:42,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 09:10:42,339 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 09:10:42,339 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 09:10:42,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 09:10:42,376 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 09:10:42,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 09:10:42,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 09:10:42,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 09:10:42,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 09:10:42,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 09:10:42,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 09:10:42,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 09:10:42,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 09:10:42,379 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 09:10:42,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 09:10:42,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 09:10:42,379 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 09:10:42,379 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 09:10:42,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 09:10:42,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 09:10:42,380 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 09:10:42,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 09:10:42,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 09:10:42,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 09:10:42,667 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 09:10:42,667 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 09:10:42,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-36.i [2023-12-19 09:10:43,886 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 09:10:44,058 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 09:10:44,058 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-36.i [2023-12-19 09:10:44,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/653376bc9/ba0fdea1739549ac9c657996c5a324f5/FLAG96b43a334 [2023-12-19 09:10:44,088 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/653376bc9/ba0fdea1739549ac9c657996c5a324f5 [2023-12-19 09:10:44,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 09:10:44,091 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 09:10:44,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 09:10:44,094 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 09:10:44,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 09:10:44,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a785abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44, skipping insertion in model container [2023-12-19 09:10:44,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,136 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 09:10:44,266 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_fillercode_fillercodestructure_filler-pr-cn_file-36.i[919,932] [2023-12-19 09:10:44,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 09:10:44,387 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 09:10:44,402 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_fillercode_fillercodestructure_filler-pr-cn_file-36.i[919,932] [2023-12-19 09:10:44,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 09:10:44,463 INFO L206 MainTranslator]: Completed translation [2023-12-19 09:10:44,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44 WrapperNode [2023-12-19 09:10:44,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 09:10:44,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 09:10:44,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 09:10:44,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 09:10:44,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,533 INFO L138 Inliner]: procedures = 26, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 284 [2023-12-19 09:10:44,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 09:10:44,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 09:10:44,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 09:10:44,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 09:10:44,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,577 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 09:10:44,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 09:10:44,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 09:10:44,613 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 09:10:44,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 09:10:44,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (1/1) ... [2023-12-19 09:10:44,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 09:10:44,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:10:44,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 09:10:44,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 09:10:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 09:10:44,677 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 09:10:44,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 09:10:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 09:10:44,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 09:10:44,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 09:10:44,744 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 09:10:44,748 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 09:10:45,143 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 09:10:45,188 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 09:10:45,189 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 09:10:45,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 09:10:45 BoogieIcfgContainer [2023-12-19 09:10:45,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 09:10:45,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 09:10:45,191 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 09:10:45,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 09:10:45,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 09:10:44" (1/3) ... [2023-12-19 09:10:45,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddd0881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 09:10:45, skipping insertion in model container [2023-12-19 09:10:45,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 09:10:44" (2/3) ... [2023-12-19 09:10:45,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ddd0881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 09:10:45, skipping insertion in model container [2023-12-19 09:10:45,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 09:10:45" (3/3) ... [2023-12-19 09:10:45,196 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-36.i [2023-12-19 09:10:45,212 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 09:10:45,213 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 09:10:45,263 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 09:10:45,269 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;@170f788f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 09:10:45,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 09:10:45,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 09:10:45,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-19 09:10:45,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:10:45,292 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:10:45,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:10:45,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:10:45,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2029687712, now seen corresponding path program 1 times [2023-12-19 09:10:45,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:10:45,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62738021] [2023-12-19 09:10:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:45,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:10:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:10:45,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:10:45,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62738021] [2023-12-19 09:10:45,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 09:10:45,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034024374] [2023-12-19 09:10:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:45,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:10:45,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:10:45,608 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 09:10:45,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 09:10:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:10:45,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 09:10:45,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:10:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked. [2023-12-19 09:10:45,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 09:10:45,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034024374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 09:10:45,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 09:10:45,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 09:10:45,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303211575] [2023-12-19 09:10:45,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 09:10:45,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 09:10:45,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:10:46,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 09:10:46,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 09:10:46,018 INFO L87 Difference]: Start difference. First operand has 117 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 69 states have internal predecessors, (97), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-19 09:10:46,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:10:46,081 INFO L93 Difference]: Finished difference Result 231 states and 422 transitions. [2023-12-19 09:10:46,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 09:10:46,084 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) Word has length 284 [2023-12-19 09:10:46,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:10:46,096 INFO L225 Difference]: With dead ends: 231 [2023-12-19 09:10:46,097 INFO L226 Difference]: Without dead ends: 115 [2023-12-19 09:10:46,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 09:10:46,112 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 09:10:46,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 09:10:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-19 09:10:46,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-12-19 09:10:46,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 67 states have internal predecessors, (91), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 09:10:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 183 transitions. [2023-12-19 09:10:46,196 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 183 transitions. Word has length 284 [2023-12-19 09:10:46,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:10:46,197 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 183 transitions. [2023-12-19 09:10:46,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-19 09:10:46,198 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 183 transitions. [2023-12-19 09:10:46,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-19 09:10:46,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:10:46,211 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:10:46,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 09:10:46,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 09:10:46,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:10:46,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:10:46,421 INFO L85 PathProgramCache]: Analyzing trace with hash -128484616, now seen corresponding path program 1 times [2023-12-19 09:10:46,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:10:46,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263818764] [2023-12-19 09:10:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:46,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:10:46,513 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:10:46,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674266607] [2023-12-19 09:10:46,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:46,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:10:46,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:10:46,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 09:10:46,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 09:10:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:10:46,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 09:10:46,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:10:46,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2023-12-19 09:10:46,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 09:10:46,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:10:46,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263818764] [2023-12-19 09:10:46,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 09:10:46,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674266607] [2023-12-19 09:10:46,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674266607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 09:10:46,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 09:10:46,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 09:10:46,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037736997] [2023-12-19 09:10:46,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 09:10:46,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 09:10:46,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:10:46,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 09:10:46,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 09:10:46,866 INFO L87 Difference]: Start difference. First operand 115 states and 183 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-19 09:10:46,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:10:46,942 INFO L93 Difference]: Finished difference Result 262 states and 419 transitions. [2023-12-19 09:10:46,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 09:10:46,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 284 [2023-12-19 09:10:46,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:10:46,945 INFO L225 Difference]: With dead ends: 262 [2023-12-19 09:10:46,945 INFO L226 Difference]: Without dead ends: 148 [2023-12-19 09:10:46,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 09:10:46,947 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 49 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 09:10:46,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 344 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 09:10:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-19 09:10:46,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 135. [2023-12-19 09:10:46,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 87 states have (on average 1.4137931034482758) internal successors, (123), 87 states have internal predecessors, (123), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 09:10:46,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 215 transitions. [2023-12-19 09:10:46,974 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 215 transitions. Word has length 284 [2023-12-19 09:10:46,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:10:46,976 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 215 transitions. [2023-12-19 09:10:46,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-19 09:10:46,977 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 215 transitions. [2023-12-19 09:10:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-19 09:10:46,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:10:46,980 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:10:47,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 09:10:47,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 09:10:47,185 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:10:47,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:10:47,185 INFO L85 PathProgramCache]: Analyzing trace with hash 294217210, now seen corresponding path program 1 times [2023-12-19 09:10:47,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:10:47,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221728537] [2023-12-19 09:10:47,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:47,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:10:47,278 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:10:47,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707990632] [2023-12-19 09:10:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:47,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:10:47,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:10:47,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 09:10:47,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 09:10:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:10:47,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 09:10:47,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:10:47,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2023-12-19 09:10:47,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 09:10:47,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:10:47,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221728537] [2023-12-19 09:10:47,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 09:10:47,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707990632] [2023-12-19 09:10:47,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707990632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 09:10:47,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 09:10:47,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 09:10:47,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608648617] [2023-12-19 09:10:47,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 09:10:47,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 09:10:47,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:10:47,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 09:10:47,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 09:10:47,494 INFO L87 Difference]: Start difference. First operand 135 states and 215 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-19 09:10:47,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:10:47,697 INFO L93 Difference]: Finished difference Result 491 states and 783 transitions. [2023-12-19 09:10:47,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 09:10:47,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 284 [2023-12-19 09:10:47,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:10:47,706 INFO L225 Difference]: With dead ends: 491 [2023-12-19 09:10:47,707 INFO L226 Difference]: Without dead ends: 357 [2023-12-19 09:10:47,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 09:10:47,710 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 304 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 09:10:47,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 612 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 09:10:47,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-12-19 09:10:47,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 215. [2023-12-19 09:10:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 142 states have (on average 1.4225352112676057) internal successors, (202), 143 states have internal predecessors, (202), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-19 09:10:47,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 342 transitions. [2023-12-19 09:10:47,766 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 342 transitions. Word has length 284 [2023-12-19 09:10:47,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:10:47,766 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 342 transitions. [2023-12-19 09:10:47,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-19 09:10:47,767 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 342 transitions. [2023-12-19 09:10:47,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-19 09:10:47,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:10:47,769 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:10:47,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 09:10:47,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:10:47,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:10:47,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:10:47,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1434991685, now seen corresponding path program 1 times [2023-12-19 09:10:47,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:10:47,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695338277] [2023-12-19 09:10:47,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:47,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:10:48,060 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:10:48,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80871772] [2023-12-19 09:10:48,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:48,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:10:48,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:10:48,066 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 09:10:48,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 09:10:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:10:48,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-19 09:10:48,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:10:48,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 783 proven. 12 refuted. 0 times theorem prover too weak. 3345 trivial. 0 not checked. [2023-12-19 09:10:48,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 09:10:48,613 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 123 proven. 12 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked. [2023-12-19 09:10:48,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:10:48,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695338277] [2023-12-19 09:10:48,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 09:10:48,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80871772] [2023-12-19 09:10:48,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80871772] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 09:10:48,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 09:10:48,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-12-19 09:10:48,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801058186] [2023-12-19 09:10:48,616 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 09:10:48,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 09:10:48,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:10:48,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 09:10:48,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-19 09:10:48,619 INFO L87 Difference]: Start difference. First operand 215 states and 342 transitions. Second operand has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-12-19 09:10:49,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:10:49,651 INFO L93 Difference]: Finished difference Result 568 states and 885 transitions. [2023-12-19 09:10:49,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-19 09:10:49,651 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 285 [2023-12-19 09:10:49,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:10:49,657 INFO L225 Difference]: With dead ends: 568 [2023-12-19 09:10:49,657 INFO L226 Difference]: Without dead ends: 354 [2023-12-19 09:10:49,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 557 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=233, Invalid=579, Unknown=0, NotChecked=0, Total=812 [2023-12-19 09:10:49,661 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 366 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 09:10:49,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 787 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 09:10:49,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-12-19 09:10:49,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 168. [2023-12-19 09:10:49,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 118 states have (on average 1.4406779661016949) internal successors, (170), 118 states have internal predecessors, (170), 46 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 09:10:49,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 262 transitions. [2023-12-19 09:10:49,690 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 262 transitions. Word has length 285 [2023-12-19 09:10:49,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:10:49,691 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 262 transitions. [2023-12-19 09:10:49,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-12-19 09:10:49,691 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 262 transitions. [2023-12-19 09:10:49,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-19 09:10:49,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:10:49,695 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:10:49,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 09:10:49,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:10:49,903 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:10:49,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:10:49,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1124438859, now seen corresponding path program 1 times [2023-12-19 09:10:49,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:10:49,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476601908] [2023-12-19 09:10:49,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:49,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:10:49,944 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:10:49,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390685461] [2023-12-19 09:10:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:49,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:10:49,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:10:49,946 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 09:10:49,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 09:10:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:10:50,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-19 09:10:50,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:10:50,305 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 777 proven. 147 refuted. 0 times theorem prover too weak. 3216 trivial. 0 not checked. [2023-12-19 09:10:50,305 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 09:10:50,665 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 246 proven. 21 refuted. 0 times theorem prover too weak. 3873 trivial. 0 not checked. [2023-12-19 09:10:50,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:10:50,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476601908] [2023-12-19 09:10:50,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 09:10:50,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390685461] [2023-12-19 09:10:50,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390685461] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 09:10:50,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 09:10:50,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-12-19 09:10:50,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942775479] [2023-12-19 09:10:50,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 09:10:50,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 09:10:50,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:10:50,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 09:10:50,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-19 09:10:50,676 INFO L87 Difference]: Start difference. First operand 168 states and 262 transitions. Second operand has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 4 states have call successors, (50), 3 states have call predecessors, (50), 6 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2023-12-19 09:10:51,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:10:51,153 INFO L93 Difference]: Finished difference Result 347 states and 535 transitions. [2023-12-19 09:10:51,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 09:10:51,154 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 4 states have call successors, (50), 3 states have call predecessors, (50), 6 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) Word has length 286 [2023-12-19 09:10:51,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:10:51,155 INFO L225 Difference]: With dead ends: 347 [2023-12-19 09:10:51,155 INFO L226 Difference]: Without dead ends: 180 [2023-12-19 09:10:51,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 556 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2023-12-19 09:10:51,156 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 251 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 09:10:51,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 432 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 09:10:51,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-19 09:10:51,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 172. [2023-12-19 09:10:51,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 121 states have (on average 1.4297520661157024) internal successors, (173), 121 states have internal predecessors, (173), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-19 09:10:51,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 265 transitions. [2023-12-19 09:10:51,168 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 265 transitions. Word has length 286 [2023-12-19 09:10:51,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:10:51,168 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 265 transitions. [2023-12-19 09:10:51,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 states have internal predecessors, (95), 4 states have call successors, (50), 3 states have call predecessors, (50), 6 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2023-12-19 09:10:51,169 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 265 transitions. [2023-12-19 09:10:51,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-19 09:10:51,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:10:51,171 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:10:51,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 09:10:51,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:10:51,378 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:10:51,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:10:51,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1933785485, now seen corresponding path program 1 times [2023-12-19 09:10:51,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:10:51,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324364145] [2023-12-19 09:10:51,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:51,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:10:51,428 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:10:51,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328547220] [2023-12-19 09:10:51,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:51,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:10:51,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:10:51,437 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 09:10:51,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 09:10:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 09:10:51,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-19 09:10:51,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 09:10:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 783 proven. 12 refuted. 0 times theorem prover too weak. 3345 trivial. 0 not checked. [2023-12-19 09:10:52,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 09:10:56,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 09:10:56,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324364145] [2023-12-19 09:10:56,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 09:10:56,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328547220] [2023-12-19 09:10:56,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328547220] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 09:10:56,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-19 09:10:56,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-12-19 09:10:56,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213465804] [2023-12-19 09:10:56,485 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-19 09:10:56,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 09:10:56,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 09:10:56,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 09:10:56,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=96, Unknown=1, NotChecked=0, Total=132 [2023-12-19 09:10:56,486 INFO L87 Difference]: Start difference. First operand 172 states and 265 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-19 09:10:56,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 09:10:56,882 INFO L93 Difference]: Finished difference Result 478 states and 732 transitions. [2023-12-19 09:10:56,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 09:10:56,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 286 [2023-12-19 09:10:56,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 09:10:56,885 INFO L225 Difference]: With dead ends: 478 [2023-12-19 09:10:56,885 INFO L226 Difference]: Without dead ends: 307 [2023-12-19 09:10:56,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=105, Invalid=236, Unknown=1, NotChecked=0, Total=342 [2023-12-19 09:10:56,886 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 125 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 09:10:56,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 509 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 09:10:56,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-12-19 09:10:56,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 279. [2023-12-19 09:10:56,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 178 states have (on average 1.3370786516853932) internal successors, (238), 178 states have internal predecessors, (238), 92 states have call successors, (92), 8 states have call predecessors, (92), 8 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-19 09:10:56,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 422 transitions. [2023-12-19 09:10:56,916 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 422 transitions. Word has length 286 [2023-12-19 09:10:56,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 09:10:56,917 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 422 transitions. [2023-12-19 09:10:56,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-19 09:10:56,917 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 422 transitions. [2023-12-19 09:10:56,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-19 09:10:56,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 09:10:56,920 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:10:56,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 09:10:57,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:10:57,127 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 09:10:57,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 09:10:57,128 INFO L85 PathProgramCache]: Analyzing trace with hash 367037105, now seen corresponding path program 1 times [2023-12-19 09:10:57,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 09:10:57,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249979405] [2023-12-19 09:10:57,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:57,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 09:10:57,165 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 09:10:57,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [262793786] [2023-12-19 09:10:57,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 09:10:57,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 09:10:57,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 09:10:57,169 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 09:10:57,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 09:10:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 09:10:57,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. Received shutdown request... [2023-12-19 09:25:27,832 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 09:25:27,832 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 09:25:28,971 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 [2023-12-19 09:25:29,040 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process [2023-12-19 09:25:29,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 137 [2023-12-19 09:25:29,057 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-19 09:25:29,059 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 09:25:29,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 09:25:29,059 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 287 with TraceHistMax 46,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-19 09:25:29,063 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-19 09:25:29,065 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 09:25:29,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 09:25:29 BoogieIcfgContainer [2023-12-19 09:25:29,068 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 09:25:29,069 INFO L158 Benchmark]: Toolchain (without parser) took 884977.78ms. Allocated memory was 265.3MB in the beginning and 329.3MB in the end (delta: 64.0MB). Free memory was 212.2MB in the beginning and 141.0MB in the end (delta: 71.2MB). Peak memory consumption was 136.7MB. Max. memory is 8.0GB. [2023-12-19 09:25:29,069 INFO L158 Benchmark]: CDTParser took 16.81ms. Allocated memory is still 204.5MB. Free memory is still 153.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 09:25:29,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.82ms. Allocated memory is still 265.3MB. Free memory was 211.9MB in the beginning and 194.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-19 09:25:29,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.48ms. Allocated memory is still 265.3MB. Free memory was 194.6MB in the beginning and 189.9MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-19 09:25:29,070 INFO L158 Benchmark]: Boogie Preprocessor took 78.70ms. Allocated memory is still 265.3MB. Free memory was 189.9MB in the beginning and 183.9MB in the end (delta: 6.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-19 09:25:29,071 INFO L158 Benchmark]: RCFGBuilder took 576.08ms. Allocated memory is still 265.3MB. Free memory was 183.8MB in the beginning and 202.8MB in the end (delta: -19.0MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. [2023-12-19 09:25:29,071 INFO L158 Benchmark]: TraceAbstraction took 883877.39ms. Allocated memory was 265.3MB in the beginning and 329.3MB in the end (delta: 64.0MB). Free memory was 202.3MB in the beginning and 141.0MB in the end (delta: 61.3MB). Peak memory consumption was 125.3MB. Max. memory is 8.0GB. [2023-12-19 09:25:29,073 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 16.81ms. Allocated memory is still 204.5MB. Free memory is still 153.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 370.82ms. Allocated memory is still 265.3MB. Free memory was 211.9MB in the beginning and 194.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.48ms. Allocated memory is still 265.3MB. Free memory was 194.6MB in the beginning and 189.9MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 78.70ms. Allocated memory is still 265.3MB. Free memory was 189.9MB in the beginning and 183.9MB in the end (delta: 6.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 576.08ms. Allocated memory is still 265.3MB. Free memory was 183.8MB in the beginning and 202.8MB in the end (delta: -19.0MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. * TraceAbstraction took 883877.39ms. Allocated memory was 265.3MB in the beginning and 329.3MB in the end (delta: 64.0MB). Free memory was 202.3MB in the beginning and 141.0MB in the end (delta: 61.3MB). Peak memory consumption was 125.3MB. 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 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 287 with TraceHistMax 46,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 117 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 883.8s, OverallIterations: 7, TraceHistogramMax: 46, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1239 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1095 mSDsluCounter, 2864 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1858 mSDsCounter, 439 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2165 IncrementalHoareTripleChecker+Invalid, 2604 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 439 mSolverCounterUnsat, 1006 mSDtfsCounter, 2165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2333 GetRequests, 2262 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=6, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 377 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 1993 NumberOfCodeBlocks, 1993 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2272 ConstructedInterpolants, 0 QuantifiedInterpolants, 4339 SizeOfPredicates, 25 NumberOfNonLiveVariables, 3781 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 32916/33120 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown