/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/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:52:32,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:52:32,287 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 17:52:32,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:52:32,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:52:32,407 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:52:32,408 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:52:32,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:52:32,408 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:52:32,408 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:52:32,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:52:32,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:52:32,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:52:32,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:52:32,410 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:52:32,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:52:32,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:52:32,411 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:52:32,411 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:52:32,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:52:32,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:52:32,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:52:32,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:52:32,412 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:52:32,413 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:52:32,413 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:52:32,413 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:52:32,413 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:52:32,413 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:52:32,414 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:52:32,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:52:32,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:52:32,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:52:32,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:52:32,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:52:32,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:52:32,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:52:32,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:52:32,415 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:52:32,415 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:52:32,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:52:32,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:52:32,416 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:52:32,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:52:32,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:52:32,416 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:52:32,417 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:52:32,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:52:32,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:52:32,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:52:32,583 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:52:32,584 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:52:32,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2023-12-16 17:52:33,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:52:33,688 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:52:33,689 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2023-12-16 17:52:33,695 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb2ec2542/f8405dce18f14310bbc94378ad5d2b4c/FLAG1e92011a4 [2023-12-16 17:52:33,705 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb2ec2542/f8405dce18f14310bbc94378ad5d2b4c [2023-12-16 17:52:33,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:52:33,710 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:52:33,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:52:33,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:52:33,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:52:33,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:52:33" (1/1) ... [2023-12-16 17:52:33,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6004d372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:33, skipping insertion in model container [2023-12-16 17:52:33,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:52:33" (1/1) ... [2023-12-16 17:52:33,762 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:52:33,883 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c[640,653] [2023-12-16 17:52:33,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:52:33,976 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:52:33,984 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c[640,653] [2023-12-16 17:52:34,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:52:34,029 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:52:34,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34 WrapperNode [2023-12-16 17:52:34,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:52:34,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:52:34,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:52:34,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:52:34,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,087 INFO L138 Inliner]: procedures = 31, calls = 35, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 220 [2023-12-16 17:52:34,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:52:34,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:52:34,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:52:34,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:52:34,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,118 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 17:52:34,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,120 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,126 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,135 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:52:34,137 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:52:34,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:52:34,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:52:34,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (1/1) ... [2023-12-16 17:52:34,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:52:34,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:52:34,171 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 17:52:34,182 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 17:52:34,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:52:34,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:52:34,198 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 17:52:34,199 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 17:52:34,199 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 17:52:34,200 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 17:52:34,200 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 17:52:34,200 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 17:52:34,200 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 17:52:34,200 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 17:52:34,200 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 17:52:34,200 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 17:52:34,200 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 17:52:34,200 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 17:52:34,201 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 17:52:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 17:52:34,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:52:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:52:34,201 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 17:52:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 17:52:34,266 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:52:34,268 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:52:34,536 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(1bv32 == ~q_free~0); [2023-12-16 17:52:34,536 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume 1bv32 == ~q_free~0;~c_dr_st~0 := 2bv32;~c_dr_pc~0 := 2bv32;~a_t~0 := do_read_c_~a~0#1; [2023-12-16 17:52:34,555 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:52:34,592 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:52:34,592 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-16 17:52:34,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:52:34 BoogieIcfgContainer [2023-12-16 17:52:34,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:52:34,594 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:52:34,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:52:34,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:52:34,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:52:33" (1/3) ... [2023-12-16 17:52:34,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aec9c2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:52:34, skipping insertion in model container [2023-12-16 17:52:34,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:52:34" (2/3) ... [2023-12-16 17:52:34,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aec9c2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:52:34, skipping insertion in model container [2023-12-16 17:52:34,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:52:34" (3/3) ... [2023-12-16 17:52:34,610 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2023-12-16 17:52:34,621 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:52:34,622 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:52:34,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:52:34,660 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;@7a3548dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:52:34,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:52:34,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 82 states have internal predecessors, (127), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-16 17:52:34,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 17:52:34,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:34,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:34,671 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:34,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:34,675 INFO L85 PathProgramCache]: Analyzing trace with hash -999542766, now seen corresponding path program 1 times [2023-12-16 17:52:34,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:34,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526906522] [2023-12-16 17:52:34,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:34,683 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 17:52:34,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:34,686 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 17:52:34,712 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 17:52:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:34,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:52:34,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:34,896 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:34,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:34,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526906522] [2023-12-16 17:52:34,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526906522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:34,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:34,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:52:34,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595372400] [2023-12-16 17:52:34,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:34,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:52:34,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:34,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:52:34,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:52:34,933 INFO L87 Difference]: Start difference. First operand has 104 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 82 states have internal predecessors, (127), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:35,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:35,237 INFO L93 Difference]: Finished difference Result 310 states and 486 transitions. [2023-12-16 17:52:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:52:35,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2023-12-16 17:52:35,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:35,251 INFO L225 Difference]: With dead ends: 310 [2023-12-16 17:52:35,251 INFO L226 Difference]: Without dead ends: 209 [2023-12-16 17:52:35,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:52:35,257 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 230 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:35,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 328 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:52:35,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-16 17:52:35,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 202. [2023-12-16 17:52:35,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 156 states have (on average 1.4871794871794872) internal successors, (232), 160 states have internal predecessors, (232), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (32), 28 states have call predecessors, (32), 27 states have call successors, (32) [2023-12-16 17:52:35,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 293 transitions. [2023-12-16 17:52:35,298 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 293 transitions. Word has length 56 [2023-12-16 17:52:35,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:35,298 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 293 transitions. [2023-12-16 17:52:35,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:35,298 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 293 transitions. [2023-12-16 17:52:35,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 17:52:35,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:35,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:35,306 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 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:52:35,503 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 17:52:35,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:35,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:35,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1351431762, now seen corresponding path program 1 times [2023-12-16 17:52:35,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:35,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457308766] [2023-12-16 17:52:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:35,506 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 17:52:35,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:35,507 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 17:52:35,512 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 17:52:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:35,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:52:35,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:35,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:35,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:35,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:35,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457308766] [2023-12-16 17:52:35,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457308766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:35,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:35,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:52:35,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077238775] [2023-12-16 17:52:35,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:35,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:52:35,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:35,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:52:35,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:52:35,597 INFO L87 Difference]: Start difference. First operand 202 states and 293 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:35,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:35,816 INFO L93 Difference]: Finished difference Result 613 states and 908 transitions. [2023-12-16 17:52:35,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:52:35,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2023-12-16 17:52:35,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:35,822 INFO L225 Difference]: With dead ends: 613 [2023-12-16 17:52:35,822 INFO L226 Difference]: Without dead ends: 423 [2023-12-16 17:52:35,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:52:35,824 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 220 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:35,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 328 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:52:35,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-12-16 17:52:35,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 415. [2023-12-16 17:52:35,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 321 states have (on average 1.4579439252336448) internal successors, (468), 333 states have internal predecessors, (468), 55 states have call successors, (55), 29 states have call predecessors, (55), 38 states have return successors, (78), 56 states have call predecessors, (78), 53 states have call successors, (78) [2023-12-16 17:52:35,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 601 transitions. [2023-12-16 17:52:35,855 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 601 transitions. Word has length 56 [2023-12-16 17:52:35,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:35,855 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 601 transitions. [2023-12-16 17:52:35,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:35,855 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 601 transitions. [2023-12-16 17:52:35,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 17:52:35,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:35,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:35,869 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 (3)] Ended with exit code 0 [2023-12-16 17:52:36,065 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 17:52:36,065 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:36,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:36,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1427269650, now seen corresponding path program 1 times [2023-12-16 17:52:36,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:36,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440123855] [2023-12-16 17:52:36,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:36,066 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 17:52:36,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:36,067 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 17:52:36,090 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 17:52:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:36,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:36,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:36,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:36,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:36,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440123855] [2023-12-16 17:52:36,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440123855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:36,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:36,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:36,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362027303] [2023-12-16 17:52:36,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:36,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:36,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:36,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:36,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:36,140 INFO L87 Difference]: Start difference. First operand 415 states and 601 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:36,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:36,205 INFO L93 Difference]: Finished difference Result 1161 states and 1668 transitions. [2023-12-16 17:52:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:36,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2023-12-16 17:52:36,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:36,209 INFO L225 Difference]: With dead ends: 1161 [2023-12-16 17:52:36,209 INFO L226 Difference]: Without dead ends: 772 [2023-12-16 17:52:36,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:36,211 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 112 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:36,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 272 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2023-12-16 17:52:36,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 764. [2023-12-16 17:52:36,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 592 states have (on average 1.4324324324324325) internal successors, (848), 614 states have internal predecessors, (848), 95 states have call successors, (95), 57 states have call predecessors, (95), 76 states have return successors, (135), 96 states have call predecessors, (135), 93 states have call successors, (135) [2023-12-16 17:52:36,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1078 transitions. [2023-12-16 17:52:36,258 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1078 transitions. Word has length 56 [2023-12-16 17:52:36,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:36,258 INFO L495 AbstractCegarLoop]: Abstraction has 764 states and 1078 transitions. [2023-12-16 17:52:36,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:36,258 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1078 transitions. [2023-12-16 17:52:36,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 17:52:36,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:36,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:36,270 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 17:52:36,463 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 17:52:36,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:36,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:36,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1643095170, now seen corresponding path program 1 times [2023-12-16 17:52:36,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:36,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127974392] [2023-12-16 17:52:36,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:36,465 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 17:52:36,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:36,466 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 17:52:36,467 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 17:52:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:36,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:52:36,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:36,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:36,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:36,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:36,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127974392] [2023-12-16 17:52:36,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127974392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:36,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:36,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:52:36,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288305728] [2023-12-16 17:52:36,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:36,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:52:36,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:36,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:52:36,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:52:36,534 INFO L87 Difference]: Start difference. First operand 764 states and 1078 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:36,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:36,599 INFO L93 Difference]: Finished difference Result 1538 states and 2182 transitions. [2023-12-16 17:52:36,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:52:36,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-16 17:52:36,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:36,603 INFO L225 Difference]: With dead ends: 1538 [2023-12-16 17:52:36,603 INFO L226 Difference]: Without dead ends: 800 [2023-12-16 17:52:36,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:52:36,605 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 6 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:36,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 669 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:36,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2023-12-16 17:52:36,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 780. [2023-12-16 17:52:36,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 604 states have (on average 1.4172185430463575) internal successors, (856), 626 states have internal predecessors, (856), 95 states have call successors, (95), 57 states have call predecessors, (95), 80 states have return successors, (139), 100 states have call predecessors, (139), 93 states have call successors, (139) [2023-12-16 17:52:36,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1090 transitions. [2023-12-16 17:52:36,637 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1090 transitions. Word has length 57 [2023-12-16 17:52:36,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:36,637 INFO L495 AbstractCegarLoop]: Abstraction has 780 states and 1090 transitions. [2023-12-16 17:52:36,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:36,638 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1090 transitions. [2023-12-16 17:52:36,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 17:52:36,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:36,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:36,650 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 17:52:36,842 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 17:52:36,842 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:36,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:36,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1570708612, now seen corresponding path program 1 times [2023-12-16 17:52:36,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:36,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441466801] [2023-12-16 17:52:36,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:36,843 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 17:52:36,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:36,844 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 17:52:36,845 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 17:52:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:36,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:36,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:36,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:36,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:36,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:36,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441466801] [2023-12-16 17:52:36,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441466801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:36,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:36,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:36,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107146699] [2023-12-16 17:52:36,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:36,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:36,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:36,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:36,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:36,941 INFO L87 Difference]: Start difference. First operand 780 states and 1090 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:37,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:37,020 INFO L93 Difference]: Finished difference Result 2232 states and 3106 transitions. [2023-12-16 17:52:37,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:37,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-16 17:52:37,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:37,030 INFO L225 Difference]: With dead ends: 2232 [2023-12-16 17:52:37,030 INFO L226 Difference]: Without dead ends: 1478 [2023-12-16 17:52:37,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:37,034 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 101 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:37,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 248 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:37,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2023-12-16 17:52:37,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1470. [2023-12-16 17:52:37,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1134 states have (on average 1.3844797178130512) internal successors, (1570), 1176 states have internal predecessors, (1570), 175 states have call successors, (175), 113 states have call predecessors, (175), 160 states have return successors, (257), 184 states have call predecessors, (257), 173 states have call successors, (257) [2023-12-16 17:52:37,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 2002 transitions. [2023-12-16 17:52:37,108 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 2002 transitions. Word has length 57 [2023-12-16 17:52:37,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:37,108 INFO L495 AbstractCegarLoop]: Abstraction has 1470 states and 2002 transitions. [2023-12-16 17:52:37,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:37,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 2002 transitions. [2023-12-16 17:52:37,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-16 17:52:37,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:37,110 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:37,115 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 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:52:37,312 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 17:52:37,313 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:37,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:37,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2004311488, now seen corresponding path program 1 times [2023-12-16 17:52:37,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:37,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126101612] [2023-12-16 17:52:37,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:37,314 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 17:52:37,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:37,315 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 17:52:37,315 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 17:52:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:37,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:52:37,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:37,378 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 17:52:37,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:37,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:37,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126101612] [2023-12-16 17:52:37,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126101612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:37,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:37,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:52:37,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898541948] [2023-12-16 17:52:37,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:37,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:52:37,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:37,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:52:37,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:52:37,380 INFO L87 Difference]: Start difference. First operand 1470 states and 2002 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:37,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:37,480 INFO L93 Difference]: Finished difference Result 2962 states and 4058 transitions. [2023-12-16 17:52:37,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:52:37,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2023-12-16 17:52:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:37,485 INFO L225 Difference]: With dead ends: 2962 [2023-12-16 17:52:37,486 INFO L226 Difference]: Without dead ends: 1518 [2023-12-16 17:52:37,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:52:37,489 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 3 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:37,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 664 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:37,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2023-12-16 17:52:37,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1502. [2023-12-16 17:52:37,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1158 states have (on average 1.3696027633851469) internal successors, (1586), 1200 states have internal predecessors, (1586), 175 states have call successors, (175), 113 states have call predecessors, (175), 168 states have return successors, (265), 192 states have call predecessors, (265), 173 states have call successors, (265) [2023-12-16 17:52:37,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2026 transitions. [2023-12-16 17:52:37,565 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2026 transitions. Word has length 72 [2023-12-16 17:52:37,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:37,566 INFO L495 AbstractCegarLoop]: Abstraction has 1502 states and 2026 transitions. [2023-12-16 17:52:37,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:52:37,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2026 transitions. [2023-12-16 17:52:37,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-16 17:52:37,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:37,570 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:37,573 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 (7)] Ended with exit code 0 [2023-12-16 17:52:37,773 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 17:52:37,773 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:37,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:37,774 INFO L85 PathProgramCache]: Analyzing trace with hash 158944322, now seen corresponding path program 1 times [2023-12-16 17:52:37,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:37,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324820147] [2023-12-16 17:52:37,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:37,774 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 17:52:37,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:37,775 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 17:52:37,775 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 17:52:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:37,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:52:37,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:37,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:52:37,873 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:37,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:37,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324820147] [2023-12-16 17:52:37,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324820147] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:37,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:37,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:52:37,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171633139] [2023-12-16 17:52:37,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:37,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:52:37,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:37,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:52:37,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:52:37,875 INFO L87 Difference]: Start difference. First operand 1502 states and 2026 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 17:52:38,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:38,144 INFO L93 Difference]: Finished difference Result 4418 states and 6009 transitions. [2023-12-16 17:52:38,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:52:38,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 72 [2023-12-16 17:52:38,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:38,155 INFO L225 Difference]: With dead ends: 4418 [2023-12-16 17:52:38,155 INFO L226 Difference]: Without dead ends: 2946 [2023-12-16 17:52:38,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 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 17:52:38,160 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 187 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:38,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 204 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:52:38,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2023-12-16 17:52:38,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2942. [2023-12-16 17:52:38,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2942 states, 2242 states have (on average 1.3389830508474576) internal successors, (3002), 2332 states have internal predecessors, (3002), 355 states have call successors, (355), 225 states have call predecessors, (355), 344 states have return successors, (602), 392 states have call predecessors, (602), 353 states have call successors, (602) [2023-12-16 17:52:38,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2942 states to 2942 states and 3959 transitions. [2023-12-16 17:52:38,315 INFO L78 Accepts]: Start accepts. Automaton has 2942 states and 3959 transitions. Word has length 72 [2023-12-16 17:52:38,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:38,316 INFO L495 AbstractCegarLoop]: Abstraction has 2942 states and 3959 transitions. [2023-12-16 17:52:38,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-16 17:52:38,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2942 states and 3959 transitions. [2023-12-16 17:52:38,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-16 17:52:38,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:38,319 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:38,328 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 17:52:38,521 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 17:52:38,522 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:38,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:38,522 INFO L85 PathProgramCache]: Analyzing trace with hash -2133990496, now seen corresponding path program 1 times [2023-12-16 17:52:38,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:38,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144590227] [2023-12-16 17:52:38,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:38,523 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 17:52:38,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:38,525 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 17:52:38,525 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 17:52:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:38,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:38,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:52:38,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:38,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:38,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144590227] [2023-12-16 17:52:38,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144590227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:38,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:38,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:38,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046139523] [2023-12-16 17:52:38,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:38,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:38,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:38,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:38,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:38,589 INFO L87 Difference]: Start difference. First operand 2942 states and 3959 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:52:38,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:38,789 INFO L93 Difference]: Finished difference Result 8610 states and 11588 transitions. [2023-12-16 17:52:38,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:38,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2023-12-16 17:52:38,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:38,806 INFO L225 Difference]: With dead ends: 8610 [2023-12-16 17:52:38,806 INFO L226 Difference]: Without dead ends: 4366 [2023-12-16 17:52:38,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:38,815 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 110 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:38,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 367 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:38,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4366 states. [2023-12-16 17:52:38,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 4366. [2023-12-16 17:52:38,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4366 states, 3322 states have (on average 1.3287176399759182) internal successors, (4414), 3452 states have internal predecessors, (4414), 519 states have call successors, (519), 337 states have call predecessors, (519), 524 states have return successors, (934), 584 states have call predecessors, (934), 517 states have call successors, (934) [2023-12-16 17:52:38,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4366 states to 4366 states and 5867 transitions. [2023-12-16 17:52:38,995 INFO L78 Accepts]: Start accepts. Automaton has 4366 states and 5867 transitions. Word has length 74 [2023-12-16 17:52:38,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:38,995 INFO L495 AbstractCegarLoop]: Abstraction has 4366 states and 5867 transitions. [2023-12-16 17:52:38,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:52:38,995 INFO L276 IsEmpty]: Start isEmpty. Operand 4366 states and 5867 transitions. [2023-12-16 17:52:39,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 17:52:39,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:39,017 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:39,022 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 (9)] Ended with exit code 0 [2023-12-16 17:52:39,220 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 17:52:39,220 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:39,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:39,220 INFO L85 PathProgramCache]: Analyzing trace with hash -713111520, now seen corresponding path program 1 times [2023-12-16 17:52:39,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:39,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926972970] [2023-12-16 17:52:39,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:39,221 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 17:52:39,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:39,222 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 17:52:39,222 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 17:52:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:39,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:52:39,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:39,306 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 17:52:39,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:39,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:39,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926972970] [2023-12-16 17:52:39,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926972970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:39,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:39,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:52:39,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495866613] [2023-12-16 17:52:39,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:39,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:52:39,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:39,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:52:39,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:52:39,307 INFO L87 Difference]: Start difference. First operand 4366 states and 5867 transitions. Second operand has 6 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:52:39,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:39,463 INFO L93 Difference]: Finished difference Result 8722 states and 11821 transitions. [2023-12-16 17:52:39,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:52:39,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 137 [2023-12-16 17:52:39,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:39,480 INFO L225 Difference]: With dead ends: 8722 [2023-12-16 17:52:39,480 INFO L226 Difference]: Without dead ends: 4406 [2023-12-16 17:52:39,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:52:39,508 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 32 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:39,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 671 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:39,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4406 states. [2023-12-16 17:52:39,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4406 to 3920. [2023-12-16 17:52:39,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3044 states have (on average 1.3147174770039423) internal successors, (4002), 3113 states have internal predecessors, (4002), 423 states have call successors, (423), 286 states have call predecessors, (423), 452 states have return successors, (791), 528 states have call predecessors, (791), 421 states have call successors, (791) [2023-12-16 17:52:39,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5216 transitions. [2023-12-16 17:52:39,663 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5216 transitions. Word has length 137 [2023-12-16 17:52:39,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:39,663 INFO L495 AbstractCegarLoop]: Abstraction has 3920 states and 5216 transitions. [2023-12-16 17:52:39,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:52:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5216 transitions. [2023-12-16 17:52:39,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 17:52:39,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:39,671 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:39,681 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 17:52:39,874 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 17:52:39,874 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:39,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:39,874 INFO L85 PathProgramCache]: Analyzing trace with hash 555109941, now seen corresponding path program 1 times [2023-12-16 17:52:39,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:39,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496229144] [2023-12-16 17:52:39,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:39,875 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 17:52:39,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:39,876 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 17:52:39,879 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 17:52:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:39,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:39,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:39,949 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-16 17:52:39,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:39,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:39,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496229144] [2023-12-16 17:52:39,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496229144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:39,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:39,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:39,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735063107] [2023-12-16 17:52:39,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:39,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:39,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:39,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:39,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:39,951 INFO L87 Difference]: Start difference. First operand 3920 states and 5216 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:52:40,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:40,048 INFO L93 Difference]: Finished difference Result 6227 states and 8279 transitions. [2023-12-16 17:52:40,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:40,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2023-12-16 17:52:40,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:40,055 INFO L225 Difference]: With dead ends: 6227 [2023-12-16 17:52:40,056 INFO L226 Difference]: Without dead ends: 2397 [2023-12-16 17:52:40,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:40,061 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 138 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:40,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 133 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:40,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2023-12-16 17:52:40,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 2397. [2023-12-16 17:52:40,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 1863 states have (on average 1.3161567364465916) internal successors, (2452), 1906 states have internal predecessors, (2452), 247 states have call successors, (247), 174 states have call predecessors, (247), 286 states have return successors, (471), 316 states have call predecessors, (471), 245 states have call successors, (471) [2023-12-16 17:52:40,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 3170 transitions. [2023-12-16 17:52:40,173 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 3170 transitions. Word has length 138 [2023-12-16 17:52:40,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:40,173 INFO L495 AbstractCegarLoop]: Abstraction has 2397 states and 3170 transitions. [2023-12-16 17:52:40,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:52:40,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 3170 transitions. [2023-12-16 17:52:40,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-16 17:52:40,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:40,180 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:40,185 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 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:52:40,382 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 17:52:40,383 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:40,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:40,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2060113659, now seen corresponding path program 1 times [2023-12-16 17:52:40,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:40,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835093885] [2023-12-16 17:52:40,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:40,384 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 17:52:40,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:40,386 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 17:52:40,397 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 17:52:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:40,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:40,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:52:40,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:40,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:40,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835093885] [2023-12-16 17:52:40,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835093885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:40,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:40,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:40,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365565304] [2023-12-16 17:52:40,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:40,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:40,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:40,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:40,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:40,537 INFO L87 Difference]: Start difference. First operand 2397 states and 3170 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:52:40,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:40,673 INFO L93 Difference]: Finished difference Result 6097 states and 8231 transitions. [2023-12-16 17:52:40,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:40,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2023-12-16 17:52:40,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:40,687 INFO L225 Difference]: With dead ends: 6097 [2023-12-16 17:52:40,687 INFO L226 Difference]: Without dead ends: 3990 [2023-12-16 17:52:40,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:40,692 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 64 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:40,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 263 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:40,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3990 states. [2023-12-16 17:52:40,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3990 to 3962. [2023-12-16 17:52:40,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3962 states, 3090 states have (on average 1.3236245954692556) internal successors, (4090), 3169 states have internal predecessors, (4090), 403 states have call successors, (403), 282 states have call predecessors, (403), 468 states have return successors, (780), 510 states have call predecessors, (780), 401 states have call successors, (780) [2023-12-16 17:52:40,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3962 states to 3962 states and 5273 transitions. [2023-12-16 17:52:40,861 INFO L78 Accepts]: Start accepts. Automaton has 3962 states and 5273 transitions. Word has length 140 [2023-12-16 17:52:40,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:40,861 INFO L495 AbstractCegarLoop]: Abstraction has 3962 states and 5273 transitions. [2023-12-16 17:52:40,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:52:40,861 INFO L276 IsEmpty]: Start isEmpty. Operand 3962 states and 5273 transitions. [2023-12-16 17:52:40,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:52:40,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:40,866 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:40,869 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 17:52:41,069 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 17:52:41,069 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:41,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:41,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1110589705, now seen corresponding path program 1 times [2023-12-16 17:52:41,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:41,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439707736] [2023-12-16 17:52:41,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:41,070 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 17:52:41,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:41,071 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 17:52:41,072 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 17:52:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:41,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:41,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 17:52:41,166 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:41,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:41,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439707736] [2023-12-16 17:52:41,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439707736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:41,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:41,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:41,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703259007] [2023-12-16 17:52:41,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:41,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:41,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:41,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:41,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:41,168 INFO L87 Difference]: Start difference. First operand 3962 states and 5273 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:52:41,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:41,447 INFO L93 Difference]: Finished difference Result 10878 states and 15014 transitions. [2023-12-16 17:52:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:41,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2023-12-16 17:52:41,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:41,476 INFO L225 Difference]: With dead ends: 10878 [2023-12-16 17:52:41,476 INFO L226 Difference]: Without dead ends: 7206 [2023-12-16 17:52:41,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:41,483 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 94 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:41,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 301 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:41,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7206 states. [2023-12-16 17:52:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7206 to 7154. [2023-12-16 17:52:41,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7154 states, 5582 states have (on average 1.3056252239340738) internal successors, (7288), 5711 states have internal predecessors, (7288), 739 states have call successors, (739), 516 states have call predecessors, (739), 832 states have return successors, (1578), 926 states have call predecessors, (1578), 737 states have call successors, (1578) [2023-12-16 17:52:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7154 states to 7154 states and 9605 transitions. [2023-12-16 17:52:41,804 INFO L78 Accepts]: Start accepts. Automaton has 7154 states and 9605 transitions. Word has length 141 [2023-12-16 17:52:41,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:41,804 INFO L495 AbstractCegarLoop]: Abstraction has 7154 states and 9605 transitions. [2023-12-16 17:52:41,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:52:41,805 INFO L276 IsEmpty]: Start isEmpty. Operand 7154 states and 9605 transitions. [2023-12-16 17:52:41,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 17:52:41,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:41,814 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:41,823 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 17:52:42,016 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 17:52:42,017 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:42,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:42,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1597060351, now seen corresponding path program 1 times [2023-12-16 17:52:42,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:42,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025375032] [2023-12-16 17:52:42,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:42,018 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 17:52:42,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:42,019 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 17:52:42,020 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 17:52:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:42,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:42,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:42,180 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-16 17:52:42,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:42,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:42,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025375032] [2023-12-16 17:52:42,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025375032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:42,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:42,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:42,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299544058] [2023-12-16 17:52:42,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:42,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:42,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:42,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:42,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:42,182 INFO L87 Difference]: Start difference. First operand 7154 states and 9605 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:52:42,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:42,699 INFO L93 Difference]: Finished difference Result 20766 states and 28262 transitions. [2023-12-16 17:52:42,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:42,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2023-12-16 17:52:42,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:42,743 INFO L225 Difference]: With dead ends: 20766 [2023-12-16 17:52:42,743 INFO L226 Difference]: Without dead ends: 13902 [2023-12-16 17:52:42,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:42,759 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 68 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:42,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 268 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13902 states. [2023-12-16 17:52:43,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13902 to 13898. [2023-12-16 17:52:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13898 states, 10849 states have (on average 1.2952345838326114) internal successors, (14052), 11107 states have internal predecessors, (14052), 1447 states have call successors, (1447), 1002 states have call predecessors, (1447), 1601 states have return successors, (3052), 1788 states have call predecessors, (3052), 1445 states have call successors, (3052) [2023-12-16 17:52:43,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13898 states to 13898 states and 18551 transitions. [2023-12-16 17:52:43,375 INFO L78 Accepts]: Start accepts. Automaton has 13898 states and 18551 transitions. Word has length 142 [2023-12-16 17:52:43,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:43,375 INFO L495 AbstractCegarLoop]: Abstraction has 13898 states and 18551 transitions. [2023-12-16 17:52:43,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:52:43,375 INFO L276 IsEmpty]: Start isEmpty. Operand 13898 states and 18551 transitions. [2023-12-16 17:52:43,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 17:52:43,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:43,388 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:43,392 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 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:52:43,591 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 17:52:43,591 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:43,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:43,591 INFO L85 PathProgramCache]: Analyzing trace with hash -983128493, now seen corresponding path program 1 times [2023-12-16 17:52:43,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:43,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822451108] [2023-12-16 17:52:43,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:43,592 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 17:52:43,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:43,593 INFO L229 MonitoredProcess]: Starting monitored process 15 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 17:52:43,598 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 (15)] Waiting until timeout for monitored process [2023-12-16 17:52:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:43,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:52:43,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-16 17:52:43,679 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:43,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:43,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822451108] [2023-12-16 17:52:43,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822451108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:43,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:43,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:52:43,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500546164] [2023-12-16 17:52:43,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:43,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:52:43,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:43,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:52:43,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:52:43,681 INFO L87 Difference]: Start difference. First operand 13898 states and 18551 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:52:44,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:44,954 INFO L93 Difference]: Finished difference Result 40545 states and 54299 transitions. [2023-12-16 17:52:44,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:52:44,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 146 [2023-12-16 17:52:44,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:45,030 INFO L225 Difference]: With dead ends: 40545 [2023-12-16 17:52:45,030 INFO L226 Difference]: Without dead ends: 26650 [2023-12-16 17:52:45,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:52:45,055 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 219 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:45,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 245 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:52:45,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26650 states. [2023-12-16 17:52:46,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26650 to 26602. [2023-12-16 17:52:46,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26602 states, 20647 states have (on average 1.2851746016370418) internal successors, (26535), 21128 states have internal predecessors, (26535), 2842 states have call successors, (2842), 1953 states have call predecessors, (2842), 3112 states have return successors, (5846), 3520 states have call predecessors, (5846), 2840 states have call successors, (5846) [2023-12-16 17:52:46,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26602 states to 26602 states and 35223 transitions. [2023-12-16 17:52:46,411 INFO L78 Accepts]: Start accepts. Automaton has 26602 states and 35223 transitions. Word has length 146 [2023-12-16 17:52:46,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:46,411 INFO L495 AbstractCegarLoop]: Abstraction has 26602 states and 35223 transitions. [2023-12-16 17:52:46,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:52:46,411 INFO L276 IsEmpty]: Start isEmpty. Operand 26602 states and 35223 transitions. [2023-12-16 17:52:46,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 17:52:46,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:46,428 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:46,433 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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:52:46,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 17:52:46,632 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:46,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:46,633 INFO L85 PathProgramCache]: Analyzing trace with hash -176082368, now seen corresponding path program 1 times [2023-12-16 17:52:46,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:46,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158358558] [2023-12-16 17:52:46,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:46,633 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 17:52:46,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:46,634 INFO L229 MonitoredProcess]: Starting monitored process 16 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 17:52:46,662 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 (16)] Waiting until timeout for monitored process [2023-12-16 17:52:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:46,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:46,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:46,722 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:52:46,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:46,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:46,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158358558] [2023-12-16 17:52:46,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158358558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:46,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:46,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:46,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432530097] [2023-12-16 17:52:46,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:46,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:46,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:46,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:46,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:46,723 INFO L87 Difference]: Start difference. First operand 26602 states and 35223 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:52:48,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:48,053 INFO L93 Difference]: Finished difference Result 53042 states and 70231 transitions. [2023-12-16 17:52:48,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:48,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 163 [2023-12-16 17:52:48,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:48,128 INFO L225 Difference]: With dead ends: 53042 [2023-12-16 17:52:48,128 INFO L226 Difference]: Without dead ends: 26510 [2023-12-16 17:52:48,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:48,156 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 103 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:48,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 301 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:48,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26510 states. [2023-12-16 17:52:49,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26510 to 26506. [2023-12-16 17:52:49,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26506 states, 20551 states have (on average 1.2654858644348206) internal successors, (26007), 21080 states have internal predecessors, (26007), 2842 states have call successors, (2842), 1953 states have call predecessors, (2842), 3112 states have return successors, (5270), 3472 states have call predecessors, (5270), 2840 states have call successors, (5270) [2023-12-16 17:52:49,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26506 states to 26506 states and 34119 transitions. [2023-12-16 17:52:49,505 INFO L78 Accepts]: Start accepts. Automaton has 26506 states and 34119 transitions. Word has length 163 [2023-12-16 17:52:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:49,507 INFO L495 AbstractCegarLoop]: Abstraction has 26506 states and 34119 transitions. [2023-12-16 17:52:49,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:52:49,507 INFO L276 IsEmpty]: Start isEmpty. Operand 26506 states and 34119 transitions. [2023-12-16 17:52:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-16 17:52:49,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:49,513 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:49,518 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 (16)] Forceful destruction successful, exit code 0 [2023-12-16 17:52:49,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 17:52:49,717 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:49,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:49,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1802269722, now seen corresponding path program 1 times [2023-12-16 17:52:49,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:49,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544557868] [2023-12-16 17:52:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:49,717 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 17:52:49,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:49,718 INFO L229 MonitoredProcess]: Starting monitored process 17 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 17:52:49,746 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 (17)] Waiting until timeout for monitored process [2023-12-16 17:52:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:49,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:49,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:49,828 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:52:49,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:49,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:49,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544557868] [2023-12-16 17:52:49,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544557868] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:49,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:49,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:52:49,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441085970] [2023-12-16 17:52:49,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:49,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:49,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:49,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:49,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:49,830 INFO L87 Difference]: Start difference. First operand 26506 states and 34119 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:52:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:51,845 INFO L93 Difference]: Finished difference Result 61358 states and 81456 transitions. [2023-12-16 17:52:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:51,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 170 [2023-12-16 17:52:51,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:51,975 INFO L225 Difference]: With dead ends: 61358 [2023-12-16 17:52:51,975 INFO L226 Difference]: Without dead ends: 43362 [2023-12-16 17:52:52,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:52,006 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 103 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:52,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 238 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:52,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43362 states. [2023-12-16 17:52:53,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43362 to 42978. [2023-12-16 17:52:54,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42978 states, 33139 states have (on average 1.2551676272669665) internal successors, (41595), 34032 states have internal predecessors, (41595), 4730 states have call successors, (4730), 3249 states have call predecessors, (4730), 5108 states have return successors, (9664), 5696 states have call predecessors, (9664), 4728 states have call successors, (9664) [2023-12-16 17:52:54,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42978 states to 42978 states and 55989 transitions. [2023-12-16 17:52:54,135 INFO L78 Accepts]: Start accepts. Automaton has 42978 states and 55989 transitions. Word has length 170 [2023-12-16 17:52:54,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:52:54,135 INFO L495 AbstractCegarLoop]: Abstraction has 42978 states and 55989 transitions. [2023-12-16 17:52:54,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:52:54,135 INFO L276 IsEmpty]: Start isEmpty. Operand 42978 states and 55989 transitions. [2023-12-16 17:52:54,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 17:52:54,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:52:54,140 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:54,156 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 (17)] Ended with exit code 0 [2023-12-16 17:52:54,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 17:52:54,344 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:52:54,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:52:54,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1610935343, now seen corresponding path program 1 times [2023-12-16 17:52:54,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:52:54,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836782005] [2023-12-16 17:52:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:52:54,345 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 17:52:54,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:52:54,346 INFO L229 MonitoredProcess]: Starting monitored process 18 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 17:52:54,376 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 (18)] Waiting until timeout for monitored process [2023-12-16 17:52:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:52:54,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:52:54,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:52:54,550 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-16 17:52:54,550 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:52:54,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:52:54,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836782005] [2023-12-16 17:52:54,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836782005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:52:54,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:52:54,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:52:54,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029442976] [2023-12-16 17:52:54,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:52:54,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:52:54,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:52:54,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:52:54,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:54,552 INFO L87 Difference]: Start difference. First operand 42978 states and 55989 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:52:58,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:52:58,061 INFO L93 Difference]: Finished difference Result 126138 states and 164095 transitions. [2023-12-16 17:52:58,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:52:58,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 171 [2023-12-16 17:52:58,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:52:58,330 INFO L225 Difference]: With dead ends: 126138 [2023-12-16 17:52:58,331 INFO L226 Difference]: Without dead ends: 83230 [2023-12-16 17:52:58,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:52:58,391 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 61 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:52:58,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 296 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:52:58,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83230 states. [2023-12-16 17:53:02,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83230 to 83226. [2023-12-16 17:53:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83226 states, 64131 states have (on average 1.2523584537898989) internal successors, (80315), 65928 states have internal predecessors, (80315), 9130 states have call successors, (9130), 6309 states have call predecessors, (9130), 9964 states have return successors, (18412), 10988 states have call predecessors, (18412), 9128 states have call successors, (18412) [2023-12-16 17:53:02,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83226 states to 83226 states and 107857 transitions. [2023-12-16 17:53:02,881 INFO L78 Accepts]: Start accepts. Automaton has 83226 states and 107857 transitions. Word has length 171 [2023-12-16 17:53:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:02,882 INFO L495 AbstractCegarLoop]: Abstraction has 83226 states and 107857 transitions. [2023-12-16 17:53:02,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:53:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 83226 states and 107857 transitions. [2023-12-16 17:53:02,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-12-16 17:53:02,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:02,902 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:53:02,912 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 (18)] Ended with exit code 0 [2023-12-16 17:53:03,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 17:53:03,106 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:03,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:03,106 INFO L85 PathProgramCache]: Analyzing trace with hash -615783755, now seen corresponding path program 1 times [2023-12-16 17:53:03,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:03,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687692416] [2023-12-16 17:53:03,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:03,107 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 17:53:03,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:03,108 INFO L229 MonitoredProcess]: Starting monitored process 19 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 17:53:03,136 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 (19)] Waiting until timeout for monitored process [2023-12-16 17:53:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:03,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:53:03,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:03,242 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-12-16 17:53:03,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:03,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:03,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687692416] [2023-12-16 17:53:03,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687692416] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:03,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:03,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:53:03,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042936764] [2023-12-16 17:53:03,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:03,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:53:03,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:03,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:53:03,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:03,244 INFO L87 Difference]: Start difference. First operand 83226 states and 107857 transitions. Second operand has 6 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-16 17:53:07,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:07,229 INFO L93 Difference]: Finished difference Result 167450 states and 219360 transitions. [2023-12-16 17:53:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:53:07,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 265 [2023-12-16 17:53:07,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:07,517 INFO L225 Difference]: With dead ends: 167450 [2023-12-16 17:53:07,518 INFO L226 Difference]: Without dead ends: 84294 [2023-12-16 17:53:07,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:53:07,655 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 6 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:07,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 691 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:07,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84294 states. [2023-12-16 17:53:12,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84294 to 83226. [2023-12-16 17:53:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83226 states, 64131 states have (on average 1.244561912335688) internal successors, (79815), 65928 states have internal predecessors, (79815), 9130 states have call successors, (9130), 6309 states have call predecessors, (9130), 9964 states have return successors, (18412), 10988 states have call predecessors, (18412), 9128 states have call successors, (18412) [2023-12-16 17:53:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83226 states to 83226 states and 107357 transitions. [2023-12-16 17:53:12,371 INFO L78 Accepts]: Start accepts. Automaton has 83226 states and 107357 transitions. Word has length 265 [2023-12-16 17:53:12,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:12,371 INFO L495 AbstractCegarLoop]: Abstraction has 83226 states and 107357 transitions. [2023-12-16 17:53:12,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-16 17:53:12,371 INFO L276 IsEmpty]: Start isEmpty. Operand 83226 states and 107357 transitions. [2023-12-16 17:53:12,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-12-16 17:53:12,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:12,390 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:53:12,394 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 (19)] Ended with exit code 0 [2023-12-16 17:53:12,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 17:53:12,595 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:12,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:12,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1877371783, now seen corresponding path program 2 times [2023-12-16 17:53:12,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:12,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768329680] [2023-12-16 17:53:12,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:53:12,597 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 17:53:12,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:12,597 INFO L229 MonitoredProcess]: Starting monitored process 20 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 17:53:12,601 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 (20)] Waiting until timeout for monitored process [2023-12-16 17:53:12,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 17:53:12,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:53:12,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:53:12,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:13,403 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2023-12-16 17:53:13,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:13,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:13,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768329680] [2023-12-16 17:53:13,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768329680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:13,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:13,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:53:13,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910365612] [2023-12-16 17:53:13,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:13,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:53:13,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:13,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:53:13,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:13,406 INFO L87 Difference]: Start difference. First operand 83226 states and 107357 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 17:53:19,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:19,555 INFO L93 Difference]: Finished difference Result 151524 states and 195997 transitions. [2023-12-16 17:53:19,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:19,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 267 [2023-12-16 17:53:19,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:20,016 INFO L225 Difference]: With dead ends: 151524 [2023-12-16 17:53:20,016 INFO L226 Difference]: Without dead ends: 151521 [2023-12-16 17:53:20,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 264 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 17:53:20,082 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 145 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:20,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 396 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:53:20,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151521 states. [2023-12-16 17:53:27,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151521 to 151382. [2023-12-16 17:53:27,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151382 states, 116647 states have (on average 1.2453042084237058) internal successors, (145261), 119864 states have internal predecessors, (145261), 16613 states have call successors, (16613), 11483 states have call predecessors, (16613), 18121 states have return successors, (33855), 20034 states have call predecessors, (33855), 16611 states have call successors, (33855) [2023-12-16 17:53:28,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151382 states to 151382 states and 195729 transitions. [2023-12-16 17:53:28,593 INFO L78 Accepts]: Start accepts. Automaton has 151382 states and 195729 transitions. Word has length 267 [2023-12-16 17:53:28,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:28,593 INFO L495 AbstractCegarLoop]: Abstraction has 151382 states and 195729 transitions. [2023-12-16 17:53:28,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-16 17:53:28,593 INFO L276 IsEmpty]: Start isEmpty. Operand 151382 states and 195729 transitions. [2023-12-16 17:53:28,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-12-16 17:53:28,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:28,614 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:53:28,628 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 (20)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:28,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 17:53:28,818 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:28,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:28,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1181853296, now seen corresponding path program 1 times [2023-12-16 17:53:28,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:28,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205097511] [2023-12-16 17:53:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:28,819 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 17:53:28,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:28,820 INFO L229 MonitoredProcess]: Starting monitored process 21 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 17:53:28,821 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 (21)] Waiting until timeout for monitored process [2023-12-16 17:53:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:28,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:53:28,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:29,003 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-16 17:53:29,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:29,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:29,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205097511] [2023-12-16 17:53:29,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205097511] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:29,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:29,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:53:29,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209417208] [2023-12-16 17:53:29,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:29,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:53:29,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:29,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:53:29,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:29,005 INFO L87 Difference]: Start difference. First operand 151382 states and 195729 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-16 17:53:32,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:32,459 INFO L93 Difference]: Finished difference Result 188532 states and 245107 transitions. [2023-12-16 17:53:32,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:32,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 255 [2023-12-16 17:53:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:32,467 INFO L225 Difference]: With dead ends: 188532 [2023-12-16 17:53:32,467 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 17:53:32,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:32,802 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 60 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:32,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 337 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:53:32,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 17:53:32,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 17:53:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:53:32,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 17:53:32,815 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 255 [2023-12-16 17:53:32,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:32,815 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 17:53:32,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-16 17:53:32,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 17:53:32,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 17:53:32,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:53:32,825 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 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:33,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 17:53:33,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2023-12-16 17:53:36,375 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-748-14-1 term,while PolyPacSimplificationTermWalker was simplifying 10 xjuncts wrt. a ∧-747-14-1 context. [2023-12-16 17:53:36,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 17:53:36,395 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 17:53:36,461 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-16 17:53:36,462 INFO L158 Benchmark]: Toolchain (without parser) took 62752.32ms. Allocated memory was 192.9MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 152.5MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 17:53:36,462 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 192.9MB. Free memory is still 140.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:53:36,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.93ms. Allocated memory is still 192.9MB. Free memory was 152.4MB in the beginning and 137.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-16 17:53:36,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.90ms. Allocated memory is still 192.9MB. Free memory was 137.8MB in the beginning and 135.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:53:36,463 INFO L158 Benchmark]: Boogie Preprocessor took 48.99ms. Allocated memory is still 192.9MB. Free memory was 135.7MB in the beginning and 132.9MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 17:53:36,463 INFO L158 Benchmark]: RCFGBuilder took 455.46ms. Allocated memory is still 192.9MB. Free memory was 132.9MB in the beginning and 107.0MB in the end (delta: 25.9MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 17:53:36,463 INFO L158 Benchmark]: TraceAbstraction took 61867.92ms. Allocated memory was 192.9MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 106.4MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-16 17:53:36,464 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 192.9MB. Free memory is still 140.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 320.93ms. Allocated memory is still 192.9MB. Free memory was 152.4MB in the beginning and 137.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.90ms. Allocated memory is still 192.9MB. Free memory was 137.8MB in the beginning and 135.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.99ms. Allocated memory is still 192.9MB. Free memory was 135.7MB in the beginning and 132.9MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 455.46ms. Allocated memory is still 192.9MB. Free memory was 132.9MB in the beginning and 107.0MB in the end (delta: 25.9MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 61867.92ms. Allocated memory was 192.9MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 106.4MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-748-14-1 term,while PolyPacSimplificationTermWalker was simplifying 8 xjuncts wrt. a ∧-747-14-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown