/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/recursified_nla-digbench/recursified_ps6-ll.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 05:54:48,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:54:48,592 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 05:54:48,595 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:54:48,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:54:48,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:54:48,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:54:48,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:54:48,623 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:54:48,626 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:54:48,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:54:48,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:54:48,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:54:48,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:54:48,629 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:54:48,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:54:48,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:54:48,629 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:54:48,629 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:54:48,629 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:54:48,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:54:48,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:54:48,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:54:48,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:54:48,630 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:54:48,631 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:54:48,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:54:48,631 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:54:48,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:54:48,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:54:48,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:54:48,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:54:48,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:54:48,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:54:48,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:54:48,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:54:48,633 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:54:48,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:54:48,633 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:54:48,633 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:54:48,633 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:54:48,633 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:54:48,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:54:48,634 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:54:48,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:54:48,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:54:48,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:54:48,838 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:54:48,839 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:54:48,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursified_nla-digbench/recursified_ps6-ll.c [2023-12-16 05:54:49,777 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:54:49,935 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:54:49,935 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_ps6-ll.c [2023-12-16 05:54:49,940 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084b2192a/51212a4943ca419892adb0eb2b42b751/FLAG7b38b3539 [2023-12-16 05:54:49,949 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084b2192a/51212a4943ca419892adb0eb2b42b751 [2023-12-16 05:54:49,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:54:49,952 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:54:49,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:54:49,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:54:49,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:54:49,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:54:49" (1/1) ... [2023-12-16 05:54:49,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413729e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:49, skipping insertion in model container [2023-12-16 05:54:49,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:54:49" (1/1) ... [2023-12-16 05:54:49,975 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:54:50,078 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_ps6-ll.c[987,1000] [2023-12-16 05:54:50,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:54:50,106 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:54:50,114 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_ps6-ll.c[987,1000] [2023-12-16 05:54:50,125 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:54:50,138 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:54:50,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50 WrapperNode [2023-12-16 05:54:50,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:54:50,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:54:50,139 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:54:50,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:54:50,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,161 INFO L138 Inliner]: procedures = 16, calls = 83, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91 [2023-12-16 05:54:50,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:54:50,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:54:50,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:54:50,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:54:50,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,180 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,198 INFO L175 MemorySlicer]: Split 60 memory accesses to 5 slices as follows [2, 4, 45, 5, 4]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 2, 2, 2, 1]. [2023-12-16 05:54:50,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,208 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:54:50,211 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:54:50,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:54:50,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:54:50,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (1/1) ... [2023-12-16 05:54:50,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:54:50,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:54:50,267 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) [2023-12-16 05:54:50,269 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 [2023-12-16 05:54:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:54:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:54:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 05:54:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 05:54:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 05:54:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-16 05:54:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-16 05:54:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:54:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-16 05:54:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-16 05:54:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_27_to_35_0 [2023-12-16 05:54:50,292 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_27_to_35_0 [2023-12-16 05:54:50,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-16 05:54:50,366 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:54:50,368 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:54:50,538 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:54:50,562 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:54:50,563 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 05:54:50,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:54:50 BoogieIcfgContainer [2023-12-16 05:54:50,563 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:54:50,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:54:50,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:54:50,566 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:54:50,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:54:49" (1/3) ... [2023-12-16 05:54:50,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34aab32e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:54:50, skipping insertion in model container [2023-12-16 05:54:50,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:54:50" (2/3) ... [2023-12-16 05:54:50,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34aab32e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:54:50, skipping insertion in model container [2023-12-16 05:54:50,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:54:50" (3/3) ... [2023-12-16 05:54:50,568 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps6-ll.c [2023-12-16 05:54:50,580 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:54:50,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:54:50,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:54:50,613 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;@62403010, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:54:50,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:54:50,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-16 05:54:50,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-16 05:54:50,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:54:50,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:54:50,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:54:50,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:54:50,632 INFO L85 PathProgramCache]: Analyzing trace with hash 511642872, now seen corresponding path program 1 times [2023-12-16 05:54:50,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:54:50,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170480517] [2023-12-16 05:54:50,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:50,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:54:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:54:50,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:54:50,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170480517] [2023-12-16 05:54:50,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 05:54:50,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558356448] [2023-12-16 05:54:50,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:50,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:54:50,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:54:50,786 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) [2023-12-16 05:54:50,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 05:54:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:54:50,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 05:54:50,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:54:50,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:54:50,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:54:50,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558356448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:54:50,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:54:50,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 05:54:50,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823207220] [2023-12-16 05:54:50,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:54:50,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 05:54:50,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:54:50,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 05:54:50,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 05:54:50,945 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 05:54:50,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:54:50,967 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2023-12-16 05:54:50,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 05:54:50,968 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-16 05:54:50,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:54:50,973 INFO L225 Difference]: With dead ends: 46 [2023-12-16 05:54:50,973 INFO L226 Difference]: Without dead ends: 22 [2023-12-16 05:54:50,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 05:54:50,980 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:54:50,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:54:50,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-16 05:54:51,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-12-16 05:54:51,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-16 05:54:51,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2023-12-16 05:54:51,005 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2023-12-16 05:54:51,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:54:51,006 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-12-16 05:54:51,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 05:54:51,006 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-12-16 05:54:51,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-16 05:54:51,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:54:51,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:54:51,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 05:54:51,212 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 [2023-12-16 05:54:51,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:54:51,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:54:51,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1191701242, now seen corresponding path program 1 times [2023-12-16 05:54:51,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:54:51,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386269177] [2023-12-16 05:54:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:51,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:54:51,264 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:54:51,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1799372287] [2023-12-16 05:54:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:51,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:54:51,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:54:51,278 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) [2023-12-16 05:54:51,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 05:54:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:54:51,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-16 05:54:51,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:54:51,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 05:54:51,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 05:54:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:54:51,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:54:51,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:54:51,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386269177] [2023-12-16 05:54:51,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 05:54:51,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799372287] [2023-12-16 05:54:51,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799372287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:54:51,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:54:51,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:54:51,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780712300] [2023-12-16 05:54:51,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:54:51,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 05:54:51,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:54:51,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 05:54:51,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:54:51,635 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 10 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 05:54:51,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:54:51,798 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2023-12-16 05:54:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 05:54:51,799 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-12-16 05:54:51,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:54:51,800 INFO L225 Difference]: With dead ends: 39 [2023-12-16 05:54:51,800 INFO L226 Difference]: Without dead ends: 37 [2023-12-16 05:54:51,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:54:51,803 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:54:51,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 78 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:54:51,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-12-16 05:54:51,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2023-12-16 05:54:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-12-16 05:54:51,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2023-12-16 05:54:51,823 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 10 [2023-12-16 05:54:51,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:54:51,827 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-12-16 05:54:51,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 05:54:51,827 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-12-16 05:54:51,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-16 05:54:51,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:54:51,829 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:54:51,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 05:54:52,034 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 [2023-12-16 05:54:52,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:54:52,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:54:52,034 INFO L85 PathProgramCache]: Analyzing trace with hash -867575748, now seen corresponding path program 1 times [2023-12-16 05:54:52,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:54:52,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425559010] [2023-12-16 05:54:52,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:52,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:54:52,054 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:54:52,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385986444] [2023-12-16 05:54:52,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:52,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:54:52,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:54:52,056 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) [2023-12-16 05:54:52,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 05:54:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:54:52,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 98 conjunts are in the unsatisfiable core [2023-12-16 05:54:52,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:54:52,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 05:54:52,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 05:54:52,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-16 05:54:52,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-16 05:54:52,458 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:54:52,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:54:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:54:52,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:54:52,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425559010] [2023-12-16 05:54:52,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 05:54:52,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385986444] [2023-12-16 05:54:52,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385986444] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:54:52,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 05:54:52,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2023-12-16 05:54:52,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192996398] [2023-12-16 05:54:52,700 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 05:54:52,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-16 05:54:52,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:54:52,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-16 05:54:52,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-12-16 05:54:52,702 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 18 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 7 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 05:54:53,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:54:53,236 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2023-12-16 05:54:53,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 05:54:53,236 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 7 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2023-12-16 05:54:53,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:54:53,239 INFO L225 Difference]: With dead ends: 63 [2023-12-16 05:54:53,240 INFO L226 Difference]: Without dead ends: 61 [2023-12-16 05:54:53,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=639, Unknown=0, NotChecked=0, Total=756 [2023-12-16 05:54:53,244 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 61 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:54:53,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 153 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 05:54:53,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-12-16 05:54:53,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 49. [2023-12-16 05:54:53,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.125) internal successors, (36), 35 states have internal predecessors, (36), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (12), 8 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-16 05:54:53,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2023-12-16 05:54:53,254 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 20 [2023-12-16 05:54:53,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:54:53,254 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2023-12-16 05:54:53,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 2.0) internal successors, (28), 13 states have internal predecessors, (28), 7 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 05:54:53,255 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2023-12-16 05:54:53,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-16 05:54:53,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:54:53,255 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:54:53,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 05:54:53,455 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 [2023-12-16 05:54:53,456 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:54:53,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:54:53,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1570354830, now seen corresponding path program 1 times [2023-12-16 05:54:53,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:54:53,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339811432] [2023-12-16 05:54:53,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:53,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:54:53,485 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:54:53,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1059758863] [2023-12-16 05:54:53,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:53,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:54:53,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:54:53,503 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) [2023-12-16 05:54:53,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 05:54:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:54:53,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-16 05:54:53,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:54:53,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 05:54:53,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 05:54:53,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 05:54:53,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 05:54:53,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:54:53,849 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:54:53,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:54:53,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339811432] [2023-12-16 05:54:53,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 05:54:53,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059758863] [2023-12-16 05:54:53,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059758863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:54:53,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:54:53,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-16 05:54:53,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690018159] [2023-12-16 05:54:53,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:54:53,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 05:54:53,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:54:53,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 05:54:53,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:54:53,852 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 05:54:54,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:54:54,098 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2023-12-16 05:54:54,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 05:54:54,098 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2023-12-16 05:54:54,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:54:54,100 INFO L225 Difference]: With dead ends: 61 [2023-12-16 05:54:54,100 INFO L226 Difference]: Without dead ends: 59 [2023-12-16 05:54:54,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2023-12-16 05:54:54,101 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 20 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:54:54,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 39 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:54:54,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-16 05:54:54,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2023-12-16 05:54:54,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 40 states have internal predecessors, (41), 9 states have call successors, (9), 7 states have call predecessors, (9), 10 states have return successors, (14), 9 states have call predecessors, (14), 8 states have call successors, (14) [2023-12-16 05:54:54,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2023-12-16 05:54:54,124 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 20 [2023-12-16 05:54:54,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:54:54,124 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2023-12-16 05:54:54,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 05:54:54,127 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2023-12-16 05:54:54,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 05:54:54,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:54:54,130 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:54:54,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 05:54:54,335 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 [2023-12-16 05:54:54,336 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:54:54,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:54:54,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1441616947, now seen corresponding path program 1 times [2023-12-16 05:54:54,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:54:54,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498425444] [2023-12-16 05:54:54,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:54,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:54:54,365 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:54:54,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139594095] [2023-12-16 05:54:54,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:54,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:54:54,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:54:54,389 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) [2023-12-16 05:54:54,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 05:54:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:54:54,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-16 05:54:54,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:54:54,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 05:54:54,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 05:54:54,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-16 05:54:54,630 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:54:54,630 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:54:54,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:54:54,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498425444] [2023-12-16 05:54:54,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 05:54:54,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139594095] [2023-12-16 05:54:54,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139594095] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:54:54,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:54:54,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-12-16 05:54:54,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251467573] [2023-12-16 05:54:54,766 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-16 05:54:54,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 05:54:54,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:54:54,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 05:54:54,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:54:54,767 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 05:54:54,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:54:54,951 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2023-12-16 05:54:54,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:54:54,951 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2023-12-16 05:54:54,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:54:54,952 INFO L225 Difference]: With dead ends: 65 [2023-12-16 05:54:54,952 INFO L226 Difference]: Without dead ends: 49 [2023-12-16 05:54:54,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-12-16 05:54:54,953 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 23 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:54:54,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 72 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 135 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:54:54,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-16 05:54:54,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-12-16 05:54:54,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.09375) internal successors, (35), 34 states have internal predecessors, (35), 8 states have call successors, (8), 6 states have call predecessors, (8), 8 states have return successors, (12), 8 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-16 05:54:54,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2023-12-16 05:54:54,960 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 26 [2023-12-16 05:54:54,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:54:54,960 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2023-12-16 05:54:54,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 05:54:54,960 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2023-12-16 05:54:54,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-16 05:54:54,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:54:54,961 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:54:54,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 05:54:55,185 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 [2023-12-16 05:54:55,186 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:54:55,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:54:55,186 INFO L85 PathProgramCache]: Analyzing trace with hash 656708138, now seen corresponding path program 1 times [2023-12-16 05:54:55,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:54:55,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345242727] [2023-12-16 05:54:55,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:55,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:54:55,200 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 05:54:55,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118259853] [2023-12-16 05:54:55,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:54:55,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:54:55,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:54:55,222 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) [2023-12-16 05:54:55,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 05:54:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:54:55,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 143 conjunts are in the unsatisfiable core [2023-12-16 05:54:55,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:54:55,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 05:54:55,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-16 05:55:34,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-16 05:55:34,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-16 05:55:38,335 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 05:55:38,336 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:55:50,323 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_int#2| |c_ULTIMATE.start_main_~#y~0#1.base|) |c_ULTIMATE.start_main_~#y~0#1.offset|))) (let ((.cse4 (* .cse1 .cse1 .cse1 .cse1 .cse1)) (.cse3 (* 5 (* .cse1 .cse1 .cse1 .cse1))) (.cse0 (* .cse1 .cse1)) (.cse2 (select (select |c_#memory_int#3| |c_ULTIMATE.start_main_~#x~0#1.base|) |c_ULTIMATE.start_main_~#x~0#1.offset|))) (or (< (+ (* .cse0 10) (div (+ (* .cse1 .cse1 .cse1 .cse1 .cse1 (- 18)) (* .cse1 .cse1 (- 119)) (* .cse1 .cse1 .cse1 .cse1 (- 65)) (* (- 2) .cse1 .cse1 .cse1 .cse1 .cse1 .cse1)) 12) .cse2 .cse3 .cse4) 0) (not (= (mod (+ .cse0 (* 7 .cse1 .cse1 .cse1 .cse1) (* .cse1 .cse1 .cse1 .cse1 .cse1 .cse1 10) (* .cse1 .cse1 .cse1 .cse1 .cse1 6)) 12) 0)) (= (+ (* 6 .cse4) (* 2 (* .cse1 .cse1 .cse1 .cse1 .cse1 .cse1)) .cse3) (+ .cse0 (* .cse2 12)))))) is different from false [2023-12-16 05:56:02,379 WARN L876 $PredicateComparison]: unable to prove that (or (let ((.cse2 (select (select |c_old(#memory_int#2)| |c_func_to_recursive_line_27_to_35_0_#in~y.base|) |c_func_to_recursive_line_27_to_35_0_#in~y.offset|))) (let ((.cse1 (select (select |c_old(#memory_int#3)| |c_func_to_recursive_line_27_to_35_0_#in~x.base|) |c_func_to_recursive_line_27_to_35_0_#in~x.offset|)) (.cse4 (* (* .cse2 .cse2 .cse2 .cse2) 5)) (.cse3 (* .cse2 .cse2 .cse2 .cse2 .cse2)) (.cse0 (* .cse2 .cse2))) (and (not (= (+ .cse0 (* .cse1 12)) (+ (* (* .cse2 .cse2 .cse2 .cse2 .cse2 .cse2) 2) (* 6 .cse3) .cse4))) (<= 0 (+ (* .cse0 10) .cse1 .cse4 .cse3 (div (+ (* .cse2 .cse2 .cse2 .cse2 (- 65)) (* (- 2) .cse2 .cse2 .cse2 .cse2 .cse2 .cse2) (* .cse2 .cse2 (- 119)) (* .cse2 .cse2 .cse2 .cse2 .cse2 (- 18))) 12))) (= (mod (+ .cse0 (* 7 .cse2 .cse2 .cse2 .cse2) (* .cse2 .cse2 .cse2 .cse2 .cse2 .cse2 10) (* .cse2 .cse2 .cse2 .cse2 .cse2 6)) 12) 0)))) (let ((.cse5 (select (select |c_#memory_int#2| |c_func_to_recursive_line_27_to_35_0_#in~y.base|) |c_func_to_recursive_line_27_to_35_0_#in~y.offset|))) (= (+ (* (select (select |c_#memory_int#3| |c_func_to_recursive_line_27_to_35_0_#in~x.base|) |c_func_to_recursive_line_27_to_35_0_#in~x.offset|) 12) (* .cse5 .cse5)) (+ (* (* .cse5 .cse5 .cse5 .cse5 .cse5) 6) (* (* .cse5 .cse5 .cse5 .cse5 .cse5 .cse5) 2) (* (* .cse5 .cse5 .cse5 .cse5) 5))))) is different from true Received shutdown request... [2023-12-16 05:56:09,823 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 05:56:09,823 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 [2023-12-16 05:56:10,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:56:10,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-16 05:56:10,836 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 [2023-12-16 05:56:10,836 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 33 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-3-1 context. [2023-12-16 05:56:10,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 05:56:10,844 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-16 05:56:10,845 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:56:10,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:56:10 BoogieIcfgContainer [2023-12-16 05:56:10,847 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:56:10,847 INFO L158 Benchmark]: Toolchain (without parser) took 80895.50ms. Allocated memory was 183.5MB in the beginning and 367.0MB in the end (delta: 183.5MB). Free memory was 143.7MB in the beginning and 234.9MB in the end (delta: -91.3MB). Peak memory consumption was 93.5MB. Max. memory is 8.0GB. [2023-12-16 05:56:10,847 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:56:10,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.93ms. Allocated memory is still 183.5MB. Free memory was 143.4MB in the beginning and 131.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 05:56:10,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.89ms. Allocated memory is still 183.5MB. Free memory was 131.5MB in the beginning and 129.8MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-16 05:56:10,848 INFO L158 Benchmark]: Boogie Preprocessor took 48.65ms. Allocated memory is still 183.5MB. Free memory was 129.8MB in the beginning and 127.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 05:56:10,848 INFO L158 Benchmark]: RCFGBuilder took 351.78ms. Allocated memory is still 183.5MB. Free memory was 127.7MB in the beginning and 110.2MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 05:56:10,848 INFO L158 Benchmark]: TraceAbstraction took 80282.53ms. Allocated memory was 183.5MB in the beginning and 367.0MB in the end (delta: 183.5MB). Free memory was 109.5MB in the beginning and 234.9MB in the end (delta: -125.5MB). Peak memory consumption was 58.9MB. Max. memory is 8.0GB. [2023-12-16 05:56:10,849 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 183.5MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 185.93ms. Allocated memory is still 183.5MB. Free memory was 143.4MB in the beginning and 131.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.89ms. Allocated memory is still 183.5MB. Free memory was 131.5MB in the beginning and 129.8MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.65ms. Allocated memory is still 183.5MB. Free memory was 129.8MB in the beginning and 127.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 351.78ms. Allocated memory is still 183.5MB. Free memory was 127.7MB in the beginning and 110.2MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 80282.53ms. Allocated memory was 183.5MB in the beginning and 367.0MB in the end (delta: 183.5MB). Free memory was 109.5MB in the beginning and 234.9MB in the end (delta: -125.5MB). Peak memory consumption was 58.9MB. 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: 37]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 37). Cancelled while NwaCegarLoop was analyzing trace of length 33 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-3-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 80.2s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 367 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 293 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 668 IncrementalHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 74 mSDtfsCounter, 668 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 66 SyntacticMatches, 4 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=4, InterpolantAutomatonStates: 57, 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, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 100 ConstructedInterpolants, 8 QuantifiedInterpolants, 1808 SizeOfPredicates, 78 NumberOfNonLiveVariables, 1076 ConjunctsInSsa, 238 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 12/20 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