/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-80.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 16:10:46,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 16:10:46,483 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 16:10:46,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 16:10:46,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 16:10:46,516 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 16:10:46,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 16:10:46,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 16:10:46,518 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 16:10:46,521 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 16:10:46,522 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 16:10:46,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 16:10:46,523 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 16:10:46,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 16:10:46,524 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 16:10:46,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 16:10:46,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 16:10:46,525 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 16:10:46,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 16:10:46,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 16:10:46,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 16:10:46,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 16:10:46,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 16:10:46,526 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 16:10:46,527 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 16:10:46,527 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 16:10:46,527 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 16:10:46,527 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 16:10:46,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 16:10:46,528 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 16:10:46,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 16:10:46,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 16:10:46,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 16:10:46,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 16:10:46,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 16:10:46,529 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 16:10:46,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 16:10:46,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 16:10:46,529 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 16:10:46,530 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 16:10:46,530 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 16:10:46,530 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 16:10:46,530 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 16:10:46,530 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 16:10:46,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 16:10:46,531 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 16:10:46,531 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 16:10:46,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 16:10:46,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 16:10:46,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 16:10:46,781 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 16:10:46,785 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 16:10:46,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-80.i [2023-12-16 16:10:48,023 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 16:10:48,280 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 16:10:48,281 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-80.i [2023-12-16 16:10:48,291 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4362e8c3/d0d0e4f7ad374b63a2f79fa88c0256e1/FLAG722f3b9d0 [2023-12-16 16:10:48,308 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4362e8c3/d0d0e4f7ad374b63a2f79fa88c0256e1 [2023-12-16 16:10:48,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 16:10:48,311 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 16:10:48,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 16:10:48,312 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 16:10:48,317 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 16:10:48,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4620747e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48, skipping insertion in model container [2023-12-16 16:10:48,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,365 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 16:10:48,498 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_variablewrapping_wrapper-sp_file-80.i[917,930] [2023-12-16 16:10:48,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 16:10:48,587 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 16:10:48,598 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_variablewrapping_wrapper-sp_file-80.i[917,930] [2023-12-16 16:10:48,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 16:10:48,675 INFO L206 MainTranslator]: Completed translation [2023-12-16 16:10:48,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48 WrapperNode [2023-12-16 16:10:48,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 16:10:48,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 16:10:48,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 16:10:48,677 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 16:10:48,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,753 INFO L138 Inliner]: procedures = 36, calls = 228, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 775 [2023-12-16 16:10:48,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 16:10:48,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 16:10:48,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 16:10:48,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 16:10:48,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,775 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,805 INFO L175 MemorySlicer]: Split 199 memory accesses to 2 slices as follows [2, 197]. 99 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 17]. The 19 writes are split as follows [0, 19]. [2023-12-16 16:10:48,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 16:10:48,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 16:10:48,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 16:10:48,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 16:10:48,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (1/1) ... [2023-12-16 16:10:48,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 16:10:48,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 16:10:48,930 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 16:10:48,956 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 16:10:48,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 16:10:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-12-16 16:10:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-12-16 16:10:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-12-16 16:10:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-12-16 16:10:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 16:10:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 16:10:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-16 16:10:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-16 16:10:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 16:10:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 16:10:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-16 16:10:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-16 16:10:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2023-12-16 16:10:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2023-12-16 16:10:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 16:10:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 16:10:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-16 16:10:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-16 16:10:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 16:10:48,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 16:10:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 16:10:48,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 16:10:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 16:10:48,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 16:10:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-16 16:10:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-16 16:10:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 16:10:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 16:10:49,165 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 16:10:49,167 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 16:10:51,015 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 16:10:51,070 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 16:10:51,070 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 16:10:51,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:10:51 BoogieIcfgContainer [2023-12-16 16:10:51,071 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 16:10:51,074 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 16:10:51,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 16:10:51,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 16:10:51,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:10:48" (1/3) ... [2023-12-16 16:10:51,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9c344b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:10:51, skipping insertion in model container [2023-12-16 16:10:51,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:48" (2/3) ... [2023-12-16 16:10:51,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9c344b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:10:51, skipping insertion in model container [2023-12-16 16:10:51,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:10:51" (3/3) ... [2023-12-16 16:10:51,080 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-80.i [2023-12-16 16:10:51,096 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 16:10:51,096 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 16:10:51,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 16:10:51,154 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;@71c73dbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 16:10:51,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 16:10:51,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 128 states have internal predecessors, (188), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:10:51,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 16:10:51,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:10:51,172 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:10:51,172 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:10:51,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:10:51,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1825638286, now seen corresponding path program 1 times [2023-12-16 16:10:51,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:10:51,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462145431] [2023-12-16 16:10:51,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:10:51,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:51,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:10:51,192 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:10:51,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 16:10:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:10:51,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 16:10:51,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:10:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-12-16 16:10:51,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:10:51,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:10:51,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462145431] [2023-12-16 16:10:51,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462145431] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:10:51,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:10:51,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 16:10:51,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297017052] [2023-12-16 16:10:51,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:10:51,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 16:10:51,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:10:51,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 16:10:51,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 16:10:51,916 INFO L87 Difference]: Start difference. First operand has 147 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 128 states have internal predecessors, (188), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 16:10:52,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:10:52,018 INFO L93 Difference]: Finished difference Result 291 states and 459 transitions. [2023-12-16 16:10:52,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 16:10:52,021 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2023-12-16 16:10:52,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:10:52,028 INFO L225 Difference]: With dead ends: 291 [2023-12-16 16:10:52,029 INFO L226 Difference]: Without dead ends: 145 [2023-12-16 16:10:52,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 147 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 16:10:52,035 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 16:10:52,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 16:10:52,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-12-16 16:10:52,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2023-12-16 16:10:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 126 states have (on average 1.4523809523809523) internal successors, (183), 126 states have internal predecessors, (183), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:10:52,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 217 transitions. [2023-12-16 16:10:52,082 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 217 transitions. Word has length 148 [2023-12-16 16:10:52,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:10:52,082 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 217 transitions. [2023-12-16 16:10:52,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 16:10:52,083 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 217 transitions. [2023-12-16 16:10:52,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 16:10:52,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:10:52,087 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:10:52,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 16:10:52,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:52,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:10:52,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:10:52,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1722736776, now seen corresponding path program 1 times [2023-12-16 16:10:52,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:10:52,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978629441] [2023-12-16 16:10:52,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:10:52,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:52,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:10:52,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:10:52,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 16:10:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:10:52,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 16:10:52,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:10:52,990 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-16 16:10:52,990 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:10:52,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:10:52,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978629441] [2023-12-16 16:10:52,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978629441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:10:52,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:10:52,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 16:10:52,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383841485] [2023-12-16 16:10:52,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:10:52,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 16:10:52,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:10:52,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 16:10:52,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 16:10:52,994 INFO L87 Difference]: Start difference. First operand 145 states and 217 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 16:10:53,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:10:53,153 INFO L93 Difference]: Finished difference Result 295 states and 442 transitions. [2023-12-16 16:10:53,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 16:10:53,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2023-12-16 16:10:53,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:10:53,156 INFO L225 Difference]: With dead ends: 295 [2023-12-16 16:10:53,156 INFO L226 Difference]: Without dead ends: 151 [2023-12-16 16:10:53,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 16:10:53,158 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 10 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:10:53,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 632 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 16:10:53,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-12-16 16:10:53,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2023-12-16 16:10:53,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 128 states have (on average 1.4453125) internal successors, (185), 128 states have internal predecessors, (185), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:10:53,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 219 transitions. [2023-12-16 16:10:53,174 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 219 transitions. Word has length 148 [2023-12-16 16:10:53,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:10:53,174 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 219 transitions. [2023-12-16 16:10:53,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 16:10:53,175 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 219 transitions. [2023-12-16 16:10:53,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 16:10:53,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:10:53,177 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:10:53,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 16:10:53,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:53,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:10:53,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:10:53,402 INFO L85 PathProgramCache]: Analyzing trace with hash -878731274, now seen corresponding path program 1 times [2023-12-16 16:10:53,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:10:53,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709996392] [2023-12-16 16:10:53,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:10:53,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:53,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:10:53,405 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:10:53,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 16:10:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:10:54,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 16:10:54,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:10:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 16:10:54,034 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:10:54,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:10:54,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709996392] [2023-12-16 16:10:54,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709996392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:10:54,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:10:54,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 16:10:54,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682866986] [2023-12-16 16:10:54,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:10:54,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 16:10:54,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:10:54,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 16:10:54,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 16:10:54,037 INFO L87 Difference]: Start difference. First operand 147 states and 219 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:10:54,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:10:54,129 INFO L93 Difference]: Finished difference Result 328 states and 490 transitions. [2023-12-16 16:10:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 16:10:54,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 148 [2023-12-16 16:10:54,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:10:54,133 INFO L225 Difference]: With dead ends: 328 [2023-12-16 16:10:54,133 INFO L226 Difference]: Without dead ends: 182 [2023-12-16 16:10:54,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 16:10:54,135 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 66 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:10:54,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 701 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 16:10:54,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-16 16:10:54,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 149. [2023-12-16 16:10:54,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 130 states have (on average 1.4384615384615385) internal successors, (187), 130 states have internal predecessors, (187), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:10:54,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 221 transitions. [2023-12-16 16:10:54,145 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 221 transitions. Word has length 148 [2023-12-16 16:10:54,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:10:54,145 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 221 transitions. [2023-12-16 16:10:54,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:10:54,146 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 221 transitions. [2023-12-16 16:10:54,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 16:10:54,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:10:54,148 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:10:54,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 16:10:54,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:54,365 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:10:54,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:10:54,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1049021147, now seen corresponding path program 1 times [2023-12-16 16:10:54,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:10:54,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173862353] [2023-12-16 16:10:54,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:10:54,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:54,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:10:54,368 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:10:54,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 16:10:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:10:54,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 16:10:54,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:10:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 16:10:54,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:10:54,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:10:54,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173862353] [2023-12-16 16:10:54,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173862353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:10:54,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:10:54,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 16:10:54,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202399317] [2023-12-16 16:10:54,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:10:54,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 16:10:54,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:10:54,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 16:10:54,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 16:10:54,962 INFO L87 Difference]: Start difference. First operand 149 states and 221 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:10:55,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:10:55,088 INFO L93 Difference]: Finished difference Result 318 states and 471 transitions. [2023-12-16 16:10:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 16:10:55,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2023-12-16 16:10:55,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:10:55,091 INFO L225 Difference]: With dead ends: 318 [2023-12-16 16:10:55,091 INFO L226 Difference]: Without dead ends: 170 [2023-12-16 16:10:55,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 16:10:55,093 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 46 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:10:55,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 830 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 16:10:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-12-16 16:10:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2023-12-16 16:10:55,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 134 states have (on average 1.4253731343283582) internal successors, (191), 134 states have internal predecessors, (191), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:10:55,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 225 transitions. [2023-12-16 16:10:55,102 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 225 transitions. Word has length 150 [2023-12-16 16:10:55,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:10:55,103 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 225 transitions. [2023-12-16 16:10:55,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:10:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 225 transitions. [2023-12-16 16:10:55,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 16:10:55,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:10:55,105 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:10:55,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 16:10:55,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:55,323 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:10:55,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:10:55,323 INFO L85 PathProgramCache]: Analyzing trace with hash 239674521, now seen corresponding path program 1 times [2023-12-16 16:10:55,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:10:55,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765012759] [2023-12-16 16:10:55,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:10:55,324 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:55,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:10:55,325 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:10:55,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 16:10:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:10:55,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 16:10:55,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:10:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 16:10:55,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:10:55,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:10:55,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765012759] [2023-12-16 16:10:55,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765012759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:10:55,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:10:55,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 16:10:55,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641886619] [2023-12-16 16:10:55,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:10:55,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 16:10:55,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:10:55,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 16:10:55,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 16:10:55,967 INFO L87 Difference]: Start difference. First operand 153 states and 225 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:10:56,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:10:56,138 INFO L93 Difference]: Finished difference Result 325 states and 476 transitions. [2023-12-16 16:10:56,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 16:10:56,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2023-12-16 16:10:56,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:10:56,140 INFO L225 Difference]: With dead ends: 325 [2023-12-16 16:10:56,140 INFO L226 Difference]: Without dead ends: 173 [2023-12-16 16:10:56,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 16:10:56,142 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 49 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:10:56,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1031 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 16:10:56,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-16 16:10:56,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 155. [2023-12-16 16:10:56,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 136 states have (on average 1.4191176470588236) internal successors, (193), 136 states have internal predecessors, (193), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:10:56,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 227 transitions. [2023-12-16 16:10:56,149 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 227 transitions. Word has length 150 [2023-12-16 16:10:56,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:10:56,150 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 227 transitions. [2023-12-16 16:10:56,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:10:56,150 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 227 transitions. [2023-12-16 16:10:56,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 16:10:56,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:10:56,152 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:10:56,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 16:10:56,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:56,369 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:10:56,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:10:56,369 INFO L85 PathProgramCache]: Analyzing trace with hash 296932823, now seen corresponding path program 1 times [2023-12-16 16:10:56,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:10:56,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021248988] [2023-12-16 16:10:56,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:10:56,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:56,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:10:56,371 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:10:56,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 16:10:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:10:56,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 16:10:56,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:10:56,985 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 16:10:56,985 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:10:56,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:10:56,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021248988] [2023-12-16 16:10:56,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021248988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:10:56,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:10:56,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 16:10:56,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770530291] [2023-12-16 16:10:56,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:10:56,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 16:10:56,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:10:56,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 16:10:56,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 16:10:56,987 INFO L87 Difference]: Start difference. First operand 155 states and 227 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:10:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:10:57,277 INFO L93 Difference]: Finished difference Result 328 states and 476 transitions. [2023-12-16 16:10:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 16:10:57,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2023-12-16 16:10:57,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:10:57,279 INFO L225 Difference]: With dead ends: 328 [2023-12-16 16:10:57,279 INFO L226 Difference]: Without dead ends: 174 [2023-12-16 16:10:57,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-12-16 16:10:57,281 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 40 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 16:10:57,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 1226 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 16:10:57,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-16 16:10:57,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 157. [2023-12-16 16:10:57,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.4130434782608696) internal successors, (195), 138 states have internal predecessors, (195), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:10:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 229 transitions. [2023-12-16 16:10:57,287 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 229 transitions. Word has length 150 [2023-12-16 16:10:57,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:10:57,288 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 229 transitions. [2023-12-16 16:10:57,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:10:57,288 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 229 transitions. [2023-12-16 16:10:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 16:10:57,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:10:57,290 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:10:57,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 16:10:57,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:57,491 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:10:57,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:10:57,491 INFO L85 PathProgramCache]: Analyzing trace with hash 296992405, now seen corresponding path program 1 times [2023-12-16 16:10:57,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:10:57,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277424376] [2023-12-16 16:10:57,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:10:57,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:10:57,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:10:57,493 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:10:57,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 16:10:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:10:58,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 16:10:58,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:10:58,395 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 16:10:58,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2023-12-16 16:10:58,430 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2023-12-16 16:10:58,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:10:58,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:10:58,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277424376] [2023-12-16 16:10:58,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277424376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:10:58,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:10:58,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 16:10:58,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765850778] [2023-12-16 16:10:58,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:10:58,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 16:10:58,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:10:58,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 16:10:58,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 16:10:58,433 INFO L87 Difference]: Start difference. First operand 157 states and 229 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 16:11:01,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:11:01,414 INFO L93 Difference]: Finished difference Result 319 states and 466 transitions. [2023-12-16 16:11:01,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 16:11:01,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2023-12-16 16:11:01,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:11:01,423 INFO L225 Difference]: With dead ends: 319 [2023-12-16 16:11:01,423 INFO L226 Difference]: Without dead ends: 163 [2023-12-16 16:11:01,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 16:11:01,424 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 167 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 16:11:01,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 586 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 16:11:01,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-12-16 16:11:01,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 157. [2023-12-16 16:11:01,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.4057971014492754) internal successors, (194), 138 states have internal predecessors, (194), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:11:01,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 228 transitions. [2023-12-16 16:11:01,431 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 228 transitions. Word has length 150 [2023-12-16 16:11:01,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:11:01,431 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 228 transitions. [2023-12-16 16:11:01,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 16:11:01,432 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 228 transitions. [2023-12-16 16:11:01,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 16:11:01,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:11:01,445 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:11:01,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 16:11:01,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:01,667 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:11:01,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:11:01,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1892514575, now seen corresponding path program 1 times [2023-12-16 16:11:01,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:11:01,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695437960] [2023-12-16 16:11:01,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:11:01,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:01,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:11:01,669 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:11:01,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 16:11:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:11:02,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 16:11:02,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:11:02,541 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 16:11:02,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2023-12-16 16:11:02,567 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-16 16:11:02,567 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:11:02,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:11:02,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695437960] [2023-12-16 16:11:02,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695437960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:11:02,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:11:02,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 16:11:02,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687957583] [2023-12-16 16:11:02,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:11:02,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 16:11:02,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:11:02,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 16:11:02,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 16:11:02,570 INFO L87 Difference]: Start difference. First operand 157 states and 228 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 16:11:06,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:11:06,073 INFO L93 Difference]: Finished difference Result 317 states and 461 transitions. [2023-12-16 16:11:06,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 16:11:06,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2023-12-16 16:11:06,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:11:06,077 INFO L225 Difference]: With dead ends: 317 [2023-12-16 16:11:06,077 INFO L226 Difference]: Without dead ends: 161 [2023-12-16 16:11:06,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 16:11:06,079 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 165 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-16 16:11:06,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 577 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-16 16:11:06,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-16 16:11:06,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 155. [2023-12-16 16:11:06,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 136 states have (on average 1.4044117647058822) internal successors, (191), 136 states have internal predecessors, (191), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:11:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 225 transitions. [2023-12-16 16:11:06,090 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 225 transitions. Word has length 152 [2023-12-16 16:11:06,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:11:06,090 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 225 transitions. [2023-12-16 16:11:06,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 16:11:06,091 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 225 transitions. [2023-12-16 16:11:06,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 16:11:06,092 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:11:06,092 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:11:06,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 16:11:06,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:06,311 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:11:06,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:11:06,312 INFO L85 PathProgramCache]: Analyzing trace with hash 915325399, now seen corresponding path program 1 times [2023-12-16 16:11:06,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:11:06,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191759342] [2023-12-16 16:11:06,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:11:06,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:06,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:11:06,314 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:11:06,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 16:11:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:11:06,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 16:11:06,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:11:07,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 16:11:07,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 172 treesize of output 64 [2023-12-16 16:11:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-16 16:11:07,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 16:11:07,597 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 16:11:07,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 1 [2023-12-16 16:11:07,631 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-16 16:11:07,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:11:07,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191759342] [2023-12-16 16:11:07,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191759342] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 16:11:07,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 16:11:07,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 12 [2023-12-16 16:11:07,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94819812] [2023-12-16 16:11:07,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:11:07,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 16:11:07,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:11:07,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 16:11:07,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 16:11:07,633 INFO L87 Difference]: Start difference. First operand 155 states and 225 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 16:11:10,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:11:10,122 INFO L93 Difference]: Finished difference Result 322 states and 464 transitions. [2023-12-16 16:11:10,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 16:11:10,124 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2023-12-16 16:11:10,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:11:10,125 INFO L225 Difference]: With dead ends: 322 [2023-12-16 16:11:10,125 INFO L226 Difference]: Without dead ends: 157 [2023-12-16 16:11:10,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2023-12-16 16:11:10,126 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 19 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-16 16:11:10,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 812 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-16 16:11:10,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-12-16 16:11:10,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2023-12-16 16:11:10,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 136 states have (on average 1.3897058823529411) internal successors, (189), 136 states have internal predecessors, (189), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:11:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 223 transitions. [2023-12-16 16:11:10,134 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 223 transitions. Word has length 154 [2023-12-16 16:11:10,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:11:10,134 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 223 transitions. [2023-12-16 16:11:10,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 16:11:10,135 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 223 transitions. [2023-12-16 16:11:10,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 16:11:10,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:11:10,136 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:11:10,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 16:11:10,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:10,361 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:11:10,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:11:10,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1534274731, now seen corresponding path program 1 times [2023-12-16 16:11:10,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:11:10,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369715517] [2023-12-16 16:11:10,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:11:10,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:10,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:11:10,364 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:11:10,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 16:11:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:11:10,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 16:11:10,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:11:11,014 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 37 treesize of output 21 [2023-12-16 16:11:11,040 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 16:11:11,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:11:11,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:11:11,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369715517] [2023-12-16 16:11:11,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369715517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:11:11,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:11:11,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 16:11:11,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562697759] [2023-12-16 16:11:11,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:11:11,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 16:11:11,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:11:11,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 16:11:11,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 16:11:11,043 INFO L87 Difference]: Start difference. First operand 155 states and 223 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:11:12,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:11:12,776 INFO L93 Difference]: Finished difference Result 313 states and 452 transitions. [2023-12-16 16:11:12,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 16:11:12,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2023-12-16 16:11:12,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:11:12,779 INFO L225 Difference]: With dead ends: 313 [2023-12-16 16:11:12,779 INFO L226 Difference]: Without dead ends: 159 [2023-12-16 16:11:12,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 16:11:12,780 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 1 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 16:11:12,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 300 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 16:11:12,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-12-16 16:11:12,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2023-12-16 16:11:12,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.3884892086330936) internal successors, (193), 139 states have internal predecessors, (193), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:11:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 227 transitions. [2023-12-16 16:11:12,788 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 227 transitions. Word has length 154 [2023-12-16 16:11:12,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:11:12,788 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 227 transitions. [2023-12-16 16:11:12,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:11:12,789 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 227 transitions. [2023-12-16 16:11:12,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 16:11:12,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:11:12,790 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:11:12,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-16 16:11:12,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:12,996 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:11:12,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:11:12,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1315420013, now seen corresponding path program 1 times [2023-12-16 16:11:12,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:11:12,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026318985] [2023-12-16 16:11:12,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:11:12,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:12,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:11:12,999 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:11:13,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 16:11:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:11:13,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 16:11:13,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:11:15,539 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2023-12-16 16:11:15,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 50 [2023-12-16 16:11:15,559 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 16:11:15,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:11:15,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:11:15,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026318985] [2023-12-16 16:11:15,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026318985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:11:15,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:11:15,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 16:11:15,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144854460] [2023-12-16 16:11:15,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:11:15,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 16:11:15,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:11:15,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 16:11:15,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 16:11:15,561 INFO L87 Difference]: Start difference. First operand 158 states and 227 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:11:25,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 16:11:36,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:11:36,197 INFO L93 Difference]: Finished difference Result 423 states and 605 transitions. [2023-12-16 16:11:36,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 16:11:36,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2023-12-16 16:11:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:11:36,203 INFO L225 Difference]: With dead ends: 423 [2023-12-16 16:11:36,203 INFO L226 Difference]: Without dead ends: 266 [2023-12-16 16:11:36,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 16:11:36,204 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 244 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2023-12-16 16:11:36,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 571 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 565 Invalid, 1 Unknown, 0 Unchecked, 19.8s Time] [2023-12-16 16:11:36,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-12-16 16:11:36,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 163. [2023-12-16 16:11:36,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 144 states have (on average 1.3888888888888888) internal successors, (200), 144 states have internal predecessors, (200), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:11:36,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 234 transitions. [2023-12-16 16:11:36,211 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 234 transitions. Word has length 154 [2023-12-16 16:11:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:11:36,212 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 234 transitions. [2023-12-16 16:11:36,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:11:36,212 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 234 transitions. [2023-12-16 16:11:36,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 16:11:36,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:11:36,213 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:11:36,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 16:11:36,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:36,414 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:11:36,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:11:36,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1391199381, now seen corresponding path program 1 times [2023-12-16 16:11:36,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:11:36,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520228089] [2023-12-16 16:11:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:11:36,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:36,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:11:36,417 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:11:36,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 16:11:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:11:37,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 16:11:37,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:11:38,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 16:11:38,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 69 [2023-12-16 16:11:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 16:11:39,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:11:39,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:11:39,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520228089] [2023-12-16 16:11:39,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520228089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:11:39,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:11:39,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 16:11:39,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587200583] [2023-12-16 16:11:39,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:11:39,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 16:11:39,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:11:39,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 16:11:39,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 16:11:39,088 INFO L87 Difference]: Start difference. First operand 163 states and 234 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:11:55,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 16:11:56,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:11:56,608 INFO L93 Difference]: Finished difference Result 422 states and 603 transitions. [2023-12-16 16:11:56,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 16:11:56,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2023-12-16 16:11:56,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:11:56,614 INFO L225 Difference]: With dead ends: 422 [2023-12-16 16:11:56,614 INFO L226 Difference]: Without dead ends: 260 [2023-12-16 16:11:56,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 16:11:56,615 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 172 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2023-12-16 16:11:56,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 732 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2023-12-16 16:11:56,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-12-16 16:11:56,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 164. [2023-12-16 16:11:56,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 145 states have (on average 1.3862068965517242) internal successors, (201), 145 states have internal predecessors, (201), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 16:11:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 235 transitions. [2023-12-16 16:11:56,625 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 235 transitions. Word has length 154 [2023-12-16 16:11:56,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:11:56,626 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 235 transitions. [2023-12-16 16:11:56,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 16:11:56,626 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 235 transitions. [2023-12-16 16:11:56,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 16:11:56,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:11:56,627 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:11:56,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-16 16:11:56,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:56,827 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:11:56,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:11:56,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1290603541, now seen corresponding path program 1 times [2023-12-16 16:11:56,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:11:56,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236444886] [2023-12-16 16:11:56,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:11:56,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:56,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:11:56,830 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:11:56,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 16:11:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:11:57,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-16 16:11:57,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 16:11:58,133 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 16:11:58,159 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 16:11:58,195 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 16:11:58,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-16 16:11:58,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:11:58,396 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 155 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 5 known predicates. [2023-12-16 16:11:58,399 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:11:58,403 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 16:11:58,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:11:58 BoogieIcfgContainer [2023-12-16 16:11:58,405 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 16:11:58,405 INFO L158 Benchmark]: Toolchain (without parser) took 70093.91ms. Allocated memory was 181.4MB in the beginning and 342.9MB in the end (delta: 161.5MB). Free memory was 130.0MB in the beginning and 181.0MB in the end (delta: -51.0MB). Peak memory consumption was 111.1MB. Max. memory is 8.0GB. [2023-12-16 16:11:58,405 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 181.4MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 16:11:58,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.51ms. Allocated memory is still 181.4MB. Free memory was 129.6MB in the beginning and 110.0MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-16 16:11:58,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.14ms. Allocated memory is still 181.4MB. Free memory was 110.0MB in the beginning and 105.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 16:11:58,406 INFO L158 Benchmark]: Boogie Preprocessor took 94.10ms. Allocated memory is still 181.4MB. Free memory was 105.5MB in the beginning and 99.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 16:11:58,406 INFO L158 Benchmark]: RCFGBuilder took 2222.42ms. Allocated memory was 181.4MB in the beginning and 285.2MB in the end (delta: 103.8MB). Free memory was 99.2MB in the beginning and 196.4MB in the end (delta: -97.2MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. [2023-12-16 16:11:58,406 INFO L158 Benchmark]: TraceAbstraction took 67330.49ms. Allocated memory was 285.2MB in the beginning and 342.9MB in the end (delta: 57.7MB). Free memory was 195.9MB in the beginning and 181.0MB in the end (delta: 14.9MB). Peak memory consumption was 72.6MB. Max. memory is 8.0GB. [2023-12-16 16:11:58,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 181.4MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 363.51ms. Allocated memory is still 181.4MB. Free memory was 129.6MB in the beginning and 110.0MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 76.14ms. Allocated memory is still 181.4MB. Free memory was 110.0MB in the beginning and 105.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 94.10ms. Allocated memory is still 181.4MB. Free memory was 105.5MB in the beginning and 99.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2222.42ms. Allocated memory was 181.4MB in the beginning and 285.2MB in the end (delta: 103.8MB). Free memory was 99.2MB in the beginning and 196.4MB in the end (delta: -97.2MB). Peak memory consumption was 13.4MB. Max. memory is 8.0GB. * TraceAbstraction took 67330.49ms. Allocated memory was 285.2MB in the beginning and 342.9MB in the end (delta: 57.7MB). Free memory was 195.9MB in the beginning and 181.0MB in the end (delta: 14.9MB). Peak memory consumption was 72.6MB. 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 155 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 5 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 147 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.3s, OverallIterations: 13, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 49.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 980 SdHoareTripleChecker+Valid, 47.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 979 mSDsluCounter, 8211 SdHoareTripleChecker+Invalid, 43.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5834 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2326 IncrementalHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 2377 mSDtfsCounter, 2326 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1989 GetRequests, 1907 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=12, InterpolantAutomatonStates: 95, 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, 12 MinimizatonAttempts, 303 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 5.1s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 1812 NumberOfCodeBlocks, 1812 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1953 ConstructedInterpolants, 5 QuantifiedInterpolants, 3980 SizeOfPredicates, 89 NumberOfNonLiveVariables, 4677 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 7008/7072 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