/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/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:10:27,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:10:27,283 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 08:10:27,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:10:27,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:10:27,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:10:27,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:10:27,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:10:27,311 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:10:27,314 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:10:27,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:10:27,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:10:27,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:10:27,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:10:27,316 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:10:27,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:10:27,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:10:27,317 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:10:27,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:10:27,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:10:27,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:10:27,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:10:27,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:10:27,318 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:10:27,318 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:10:27,318 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:10:27,318 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:10:27,318 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:10:27,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:10:27,319 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:10:27,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:10:27,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:10:27,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:10:27,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:10:27,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:10:27,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:10:27,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:10:27,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:10:27,320 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:10:27,320 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:10:27,320 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:10:27,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:10:27,321 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:10:27,321 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:10:27,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:10:27,321 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:10:27,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:10:27,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:10:27,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:10:27,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:10:27,541 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:10:27,541 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:10:27,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c [2023-12-16 08:10:28,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:10:28,864 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:10:28,865 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c [2023-12-16 08:10:28,882 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb12daea5/abb107cb44fb4b73826a92850752bae8/FLAGc1909da0e [2023-12-16 08:10:28,894 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb12daea5/abb107cb44fb4b73826a92850752bae8 [2023-12-16 08:10:28,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:10:28,897 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:10:28,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:10:28,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:10:28,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:10:28,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:10:28" (1/1) ... [2023-12-16 08:10:28,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223f192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:28, skipping insertion in model container [2023-12-16 08:10:28,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:10:28" (1/1) ... [2023-12-16 08:10:28,954 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:10:29,058 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c[914,927] [2023-12-16 08:10:29,097 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c[7115,7128] [2023-12-16 08:10:29,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:10:29,175 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:10:29,183 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c[914,927] [2023-12-16 08:10:29,199 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.06.cil-2.c[7115,7128] [2023-12-16 08:10:29,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:10:29,238 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:10:29,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29 WrapperNode [2023-12-16 08:10:29,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:10:29,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:10:29,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:10:29,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:10:29,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,285 INFO L138 Inliner]: procedures = 66, calls = 75, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 681 [2023-12-16 08:10:29,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:10:29,286 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:10:29,286 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:10:29,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:10:29,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,311 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 08:10:29,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,326 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,328 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:10:29,332 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:10:29,332 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:10:29,332 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:10:29,333 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (1/1) ... [2023-12-16 08:10:29,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:10:29,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:10:29,374 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 08:10:29,376 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 08:10:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:10:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 08:10:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 08:10:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 08:10:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 08:10:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 08:10:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 08:10:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 08:10:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 08:10:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 08:10:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 08:10:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 08:10:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 08:10:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 08:10:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 08:10:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 08:10:29,400 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 08:10:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:10:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 08:10:29,400 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 08:10:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 08:10:29,400 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 08:10:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 08:10:29,400 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 08:10:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 08:10:29,400 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 08:10:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 08:10:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 08:10:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:10:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:10:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 08:10:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 08:10:29,539 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:10:29,551 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:10:30,281 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:10:30,331 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:10:30,331 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-12-16 08:10:30,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:10:30 BoogieIcfgContainer [2023-12-16 08:10:30,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:10:30,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:10:30,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:10:30,336 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:10:30,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:10:28" (1/3) ... [2023-12-16 08:10:30,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5ee2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:10:30, skipping insertion in model container [2023-12-16 08:10:30,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:10:29" (2/3) ... [2023-12-16 08:10:30,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5ee2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:10:30, skipping insertion in model container [2023-12-16 08:10:30,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:10:30" (3/3) ... [2023-12-16 08:10:30,337 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.06.cil-2.c [2023-12-16 08:10:30,350 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:10:30,350 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 08:10:30,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:10:30,402 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;@4b6160b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:10:30,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 08:10:30,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 301 states, 250 states have (on average 1.684) internal successors, (421), 256 states have internal predecessors, (421), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 08:10:30,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:10:30,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:30,415 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, 1] [2023-12-16 08:10:30,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:30,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2141297082, now seen corresponding path program 1 times [2023-12-16 08:10:30,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:30,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232433268] [2023-12-16 08:10:30,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:30,429 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 08:10:30,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:30,432 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 08:10:30,471 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 08:10:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:30,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 08:10:30,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:30,655 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 08:10:30,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:30,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:30,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232433268] [2023-12-16 08:10:30,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232433268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:30,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:30,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:10:30,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288715911] [2023-12-16 08:10:30,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:30,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:30,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:30,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:30,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:30,696 INFO L87 Difference]: Start difference. First operand has 301 states, 250 states have (on average 1.684) internal successors, (421), 256 states have internal predecessors, (421), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 08:10:31,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:31,414 INFO L93 Difference]: Finished difference Result 678 states and 1097 transitions. [2023-12-16 08:10:31,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:10:31,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 58 [2023-12-16 08:10:31,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:31,442 INFO L225 Difference]: With dead ends: 678 [2023-12-16 08:10:31,442 INFO L226 Difference]: Without dead ends: 391 [2023-12-16 08:10:31,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 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 08:10:31,449 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 335 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:31,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 881 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:10:31,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-12-16 08:10:31,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 384. [2023-12-16 08:10:31,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 315 states have (on average 1.5396825396825398) internal successors, (485), 321 states have internal predecessors, (485), 45 states have call successors, (45), 21 states have call predecessors, (45), 22 states have return successors, (48), 44 states have call predecessors, (48), 43 states have call successors, (48) [2023-12-16 08:10:31,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 578 transitions. [2023-12-16 08:10:31,510 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 578 transitions. Word has length 58 [2023-12-16 08:10:31,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:31,511 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 578 transitions. [2023-12-16 08:10:31,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 08:10:31,511 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 578 transitions. [2023-12-16 08:10:31,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:10:31,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:31,514 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, 1] [2023-12-16 08:10:31,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 08:10:31,717 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 08:10:31,717 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:31,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:31,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1050135035, now seen corresponding path program 1 times [2023-12-16 08:10:31,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:31,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411172378] [2023-12-16 08:10:31,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:31,719 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 08:10:31,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:31,721 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 08:10:31,753 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 08:10:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:31,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:10:31,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:31,876 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 08:10:31,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:31,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:31,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411172378] [2023-12-16 08:10:31,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411172378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:31,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:31,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:10:31,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117209258] [2023-12-16 08:10:31,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:31,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:31,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:31,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:31,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:31,880 INFO L87 Difference]: Start difference. First operand 384 states and 578 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 08:10:32,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:32,533 INFO L93 Difference]: Finished difference Result 743 states and 1099 transitions. [2023-12-16 08:10:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:10:32,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 58 [2023-12-16 08:10:32,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:32,537 INFO L225 Difference]: With dead ends: 743 [2023-12-16 08:10:32,537 INFO L226 Difference]: Without dead ends: 579 [2023-12-16 08:10:32,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 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 08:10:32,539 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 324 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:32,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 877 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 08:10:32,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-12-16 08:10:32,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 571. [2023-12-16 08:10:32,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 458 states have (on average 1.4912663755458515) internal successors, (683), 472 states have internal predecessors, (683), 67 states have call successors, (67), 35 states have call predecessors, (67), 44 states have return successors, (90), 68 states have call predecessors, (90), 65 states have call successors, (90) [2023-12-16 08:10:32,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 840 transitions. [2023-12-16 08:10:32,585 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 840 transitions. Word has length 58 [2023-12-16 08:10:32,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:32,585 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 840 transitions. [2023-12-16 08:10:32,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 08:10:32,585 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 840 transitions. [2023-12-16 08:10:32,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:10:32,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:32,588 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, 1] [2023-12-16 08:10:32,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:32,791 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 08:10:32,792 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:32,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:32,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1629638588, now seen corresponding path program 1 times [2023-12-16 08:10:32,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:32,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526154311] [2023-12-16 08:10:32,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:32,793 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 08:10:32,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:32,801 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 08:10:32,804 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 08:10:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:32,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:10:32,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:32,924 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 08:10:32,924 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:32,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:32,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526154311] [2023-12-16 08:10:32,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526154311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:32,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:32,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:10:32,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161689777] [2023-12-16 08:10:32,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:32,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:10:32,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:32,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:10:32,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:10:32,926 INFO L87 Difference]: Start difference. First operand 571 states and 840 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 08:10:33,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:33,049 INFO L93 Difference]: Finished difference Result 920 states and 1327 transitions. [2023-12-16 08:10:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:10:33,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 58 [2023-12-16 08:10:33,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:33,053 INFO L225 Difference]: With dead ends: 920 [2023-12-16 08:10:33,053 INFO L226 Difference]: Without dead ends: 583 [2023-12-16 08:10:33,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 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 08:10:33,055 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 3 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:33,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2090 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:10:33,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-16 08:10:33,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 579. [2023-12-16 08:10:33,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 464 states have (on average 1.480603448275862) internal successors, (687), 478 states have internal predecessors, (687), 67 states have call successors, (67), 35 states have call predecessors, (67), 46 states have return successors, (92), 70 states have call predecessors, (92), 65 states have call successors, (92) [2023-12-16 08:10:33,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 846 transitions. [2023-12-16 08:10:33,085 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 846 transitions. Word has length 58 [2023-12-16 08:10:33,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:33,085 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 846 transitions. [2023-12-16 08:10:33,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 08:10:33,086 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 846 transitions. [2023-12-16 08:10:33,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:10:33,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:33,087 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, 1] [2023-12-16 08:10:33,093 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 08:10:33,291 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 08:10:33,291 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:33,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:33,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1691678202, now seen corresponding path program 1 times [2023-12-16 08:10:33,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:33,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792069757] [2023-12-16 08:10:33,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:33,293 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 08:10:33,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:33,294 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 08:10:33,299 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 08:10:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:33,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:33,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:33,415 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 08:10:33,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:33,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:33,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792069757] [2023-12-16 08:10:33,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792069757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:33,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:33,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:33,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253327411] [2023-12-16 08:10:33,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:33,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:10:33,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:33,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:10:33,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:10:33,417 INFO L87 Difference]: Start difference. First operand 579 states and 846 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 08:10:33,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:33,831 INFO L93 Difference]: Finished difference Result 1273 states and 1799 transitions. [2023-12-16 08:10:33,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:33,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 58 [2023-12-16 08:10:33,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:33,836 INFO L225 Difference]: With dead ends: 1273 [2023-12-16 08:10:33,836 INFO L226 Difference]: Without dead ends: 932 [2023-12-16 08:10:33,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 08:10:33,838 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 607 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:33,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 466 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:10:33,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2023-12-16 08:10:33,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 928. [2023-12-16 08:10:33,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 721 states have (on average 1.4244105409153953) internal successors, (1027), 751 states have internal predecessors, (1027), 115 states have call successors, (115), 63 states have call predecessors, (115), 90 states have return successors, (182), 122 states have call predecessors, (182), 113 states have call successors, (182) [2023-12-16 08:10:33,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1324 transitions. [2023-12-16 08:10:33,904 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1324 transitions. Word has length 58 [2023-12-16 08:10:33,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:33,905 INFO L495 AbstractCegarLoop]: Abstraction has 928 states and 1324 transitions. [2023-12-16 08:10:33,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 08:10:33,905 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1324 transitions. [2023-12-16 08:10:33,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 08:10:33,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:33,908 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, 1, 1] [2023-12-16 08:10:33,924 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 08:10:34,111 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 08:10:34,112 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:34,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:34,113 INFO L85 PathProgramCache]: Analyzing trace with hash 925100844, now seen corresponding path program 1 times [2023-12-16 08:10:34,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:34,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79806922] [2023-12-16 08:10:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:34,114 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 08:10:34,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:34,115 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 08:10:34,116 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 08:10:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:34,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:34,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:34,246 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 08:10:34,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:34,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:34,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79806922] [2023-12-16 08:10:34,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79806922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:34,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:34,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:34,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818396356] [2023-12-16 08:10:34,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:34,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:34,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:34,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:34,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:34,248 INFO L87 Difference]: Start difference. First operand 928 states and 1324 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:10:34,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:34,394 INFO L93 Difference]: Finished difference Result 2232 states and 3106 transitions. [2023-12-16 08:10:34,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:34,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 59 [2023-12-16 08:10:34,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:34,401 INFO L225 Difference]: With dead ends: 2232 [2023-12-16 08:10:34,401 INFO L226 Difference]: Without dead ends: 1554 [2023-12-16 08:10:34,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 08:10:34,404 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 392 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:34,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 525 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:10:34,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2023-12-16 08:10:34,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1510. [2023-12-16 08:10:34,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1155 states have (on average 1.374025974025974) internal successors, (1587), 1209 states have internal predecessors, (1587), 183 states have call successors, (183), 119 states have call predecessors, (183), 170 states have return successors, (296), 190 states have call predecessors, (296), 181 states have call successors, (296) [2023-12-16 08:10:34,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2066 transitions. [2023-12-16 08:10:34,473 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2066 transitions. Word has length 59 [2023-12-16 08:10:34,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:34,473 INFO L495 AbstractCegarLoop]: Abstraction has 1510 states and 2066 transitions. [2023-12-16 08:10:34,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:10:34,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2066 transitions. [2023-12-16 08:10:34,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 08:10:34,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:34,475 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, 1, 1, 1] [2023-12-16 08:10:34,491 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 08:10:34,679 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 08:10:34,679 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:34,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:34,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1672301310, now seen corresponding path program 1 times [2023-12-16 08:10:34,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:34,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437404952] [2023-12-16 08:10:34,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:34,680 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 08:10:34,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:34,681 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 08:10:34,682 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 08:10:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:34,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:34,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:34,808 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 08:10:34,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:34,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:34,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437404952] [2023-12-16 08:10:34,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437404952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:34,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:34,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:34,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798783734] [2023-12-16 08:10:34,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:34,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:34,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:34,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:34,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:34,810 INFO L87 Difference]: Start difference. First operand 1510 states and 2066 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:10:34,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:34,968 INFO L93 Difference]: Finished difference Result 3906 states and 5244 transitions. [2023-12-16 08:10:34,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:34,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2023-12-16 08:10:34,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:34,977 INFO L225 Difference]: With dead ends: 3906 [2023-12-16 08:10:34,977 INFO L226 Difference]: Without dead ends: 2618 [2023-12-16 08:10:34,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 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 08:10:34,981 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 63 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:34,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 805 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:10:34,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2023-12-16 08:10:35,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 2586. [2023-12-16 08:10:35,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2586 states, 1963 states have (on average 1.3382577687213448) internal successors, (2627), 2041 states have internal predecessors, (2627), 307 states have call successors, (307), 231 states have call predecessors, (307), 314 states have return successors, (474), 318 states have call predecessors, (474), 305 states have call successors, (474) [2023-12-16 08:10:35,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 3408 transitions. [2023-12-16 08:10:35,160 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 3408 transitions. Word has length 60 [2023-12-16 08:10:35,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:35,160 INFO L495 AbstractCegarLoop]: Abstraction has 2586 states and 3408 transitions. [2023-12-16 08:10:35,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:10:35,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 3408 transitions. [2023-12-16 08:10:35,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 08:10:35,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:35,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:10:35,176 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 08:10:35,365 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 08:10:35,365 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:35,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:35,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1926597759, now seen corresponding path program 1 times [2023-12-16 08:10:35,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:35,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639122617] [2023-12-16 08:10:35,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:35,366 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 08:10:35,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:35,370 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 08:10:35,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 08:10:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:35,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:35,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:35,492 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 08:10:35,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:35,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:35,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639122617] [2023-12-16 08:10:35,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639122617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:35,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:35,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:35,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451540544] [2023-12-16 08:10:35,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:35,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:35,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:35,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:35,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:35,494 INFO L87 Difference]: Start difference. First operand 2586 states and 3408 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:10:35,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:35,644 INFO L93 Difference]: Finished difference Result 5522 states and 7186 transitions. [2023-12-16 08:10:35,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:35,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 66 [2023-12-16 08:10:35,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:35,656 INFO L225 Difference]: With dead ends: 5522 [2023-12-16 08:10:35,656 INFO L226 Difference]: Without dead ends: 3166 [2023-12-16 08:10:35,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 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 08:10:35,661 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 388 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:35,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 525 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:10:35,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2023-12-16 08:10:35,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3122. [2023-12-16 08:10:35,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 2363 states have (on average 1.3199322894625476) internal successors, (3119), 2453 states have internal predecessors, (3119), 375 states have call successors, (375), 287 states have call predecessors, (375), 382 states have return successors, (566), 386 states have call predecessors, (566), 373 states have call successors, (566) [2023-12-16 08:10:35,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 4060 transitions. [2023-12-16 08:10:35,832 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 4060 transitions. Word has length 66 [2023-12-16 08:10:35,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:35,832 INFO L495 AbstractCegarLoop]: Abstraction has 3122 states and 4060 transitions. [2023-12-16 08:10:35,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:10:35,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 4060 transitions. [2023-12-16 08:10:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 08:10:35,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:35,834 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:10:35,852 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 (8)] Ended with exit code 0 [2023-12-16 08:10:36,038 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 08:10:36,038 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:36,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:36,039 INFO L85 PathProgramCache]: Analyzing trace with hash -111484654, now seen corresponding path program 1 times [2023-12-16 08:10:36,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:36,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035317898] [2023-12-16 08:10:36,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:36,039 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 08:10:36,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:36,054 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 08:10:36,097 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 08:10:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:36,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:36,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:36,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:10:36,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:36,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:36,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035317898] [2023-12-16 08:10:36,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035317898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:36,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:36,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:36,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609437472] [2023-12-16 08:10:36,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:36,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:10:36,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:36,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:10:36,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:10:36,152 INFO L87 Difference]: Start difference. First operand 3122 states and 4060 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:10:36,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:36,480 INFO L93 Difference]: Finished difference Result 3738 states and 4837 transitions. [2023-12-16 08:10:36,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:36,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2023-12-16 08:10:36,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:36,493 INFO L225 Difference]: With dead ends: 3738 [2023-12-16 08:10:36,493 INFO L226 Difference]: Without dead ends: 3735 [2023-12-16 08:10:36,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 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 08:10:36,496 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 830 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:36,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 507 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:10:36,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2023-12-16 08:10:36,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3701. [2023-12-16 08:10:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3701 states, 2797 states have (on average 1.3117626027887022) internal successors, (3669), 2902 states have internal predecessors, (3669), 442 states have call successors, (442), 343 states have call predecessors, (442), 460 states have return successors, (670), 460 states have call predecessors, (670), 441 states have call successors, (670) [2023-12-16 08:10:36,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 4781 transitions. [2023-12-16 08:10:36,668 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 4781 transitions. Word has length 67 [2023-12-16 08:10:36,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:36,668 INFO L495 AbstractCegarLoop]: Abstraction has 3701 states and 4781 transitions. [2023-12-16 08:10:36,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:10:36,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 4781 transitions. [2023-12-16 08:10:36,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 08:10:36,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:36,673 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:10:36,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:36,877 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 08:10:36,877 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:36,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:36,877 INFO L85 PathProgramCache]: Analyzing trace with hash 837942763, now seen corresponding path program 1 times [2023-12-16 08:10:36,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:36,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515183918] [2023-12-16 08:10:36,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:36,878 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 08:10:36,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:36,897 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 08:10:36,921 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 08:10:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:36,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:10:36,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:37,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:10:37,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 08:10:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:10:37,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:37,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515183918] [2023-12-16 08:10:37,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515183918] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 08:10:37,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 08:10:37,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2023-12-16 08:10:37,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935510666] [2023-12-16 08:10:37,351 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 08:10:37,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 08:10:37,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:37,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 08:10:37,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:10:37,352 INFO L87 Difference]: Start difference. First operand 3701 states and 4781 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 08:10:38,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:38,094 INFO L93 Difference]: Finished difference Result 8218 states and 10573 transitions. [2023-12-16 08:10:38,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:10:38,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 68 [2023-12-16 08:10:38,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:38,126 INFO L225 Difference]: With dead ends: 8218 [2023-12-16 08:10:38,126 INFO L226 Difference]: Without dead ends: 8215 [2023-12-16 08:10:38,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:10:38,131 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 1129 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 2017 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:38,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 2017 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:38,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8215 states. [2023-12-16 08:10:38,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8215 to 6035. [2023-12-16 08:10:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6035 states, 4551 states have (on average 1.3067457701604044) internal successors, (5947), 4728 states have internal predecessors, (5947), 714 states have call successors, (714), 567 states have call predecessors, (714), 768 states have return successors, (1106), 744 states have call predecessors, (1106), 713 states have call successors, (1106) [2023-12-16 08:10:38,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6035 states to 6035 states and 7767 transitions. [2023-12-16 08:10:38,500 INFO L78 Accepts]: Start accepts. Automaton has 6035 states and 7767 transitions. Word has length 68 [2023-12-16 08:10:38,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:38,500 INFO L495 AbstractCegarLoop]: Abstraction has 6035 states and 7767 transitions. [2023-12-16 08:10:38,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 08:10:38,501 INFO L276 IsEmpty]: Start isEmpty. Operand 6035 states and 7767 transitions. [2023-12-16 08:10:38,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:10:38,502 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:38,502 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:38,523 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 (10)] Ended with exit code 0 [2023-12-16 08:10:38,706 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 08:10:38,706 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:38,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:38,707 INFO L85 PathProgramCache]: Analyzing trace with hash -388625966, now seen corresponding path program 2 times [2023-12-16 08:10:38,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:38,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947122936] [2023-12-16 08:10:38,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 08:10:38,707 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 08:10:38,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:38,708 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 08:10:38,714 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 08:10:38,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 08:10:38,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 08:10:38,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:38,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:10:38,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:38,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:38,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947122936] [2023-12-16 08:10:38,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947122936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:38,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:38,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:38,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976102471] [2023-12-16 08:10:38,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:38,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:38,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:38,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:38,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:38,794 INFO L87 Difference]: Start difference. First operand 6035 states and 7767 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:10:39,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:39,055 INFO L93 Difference]: Finished difference Result 8982 states and 11635 transitions. [2023-12-16 08:10:39,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:39,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2023-12-16 08:10:39,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:39,068 INFO L225 Difference]: With dead ends: 8982 [2023-12-16 08:10:39,068 INFO L226 Difference]: Without dead ends: 3723 [2023-12-16 08:10:39,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 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 08:10:39,078 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 423 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:39,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 584 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:10:39,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2023-12-16 08:10:39,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3699. [2023-12-16 08:10:39,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3699 states, 2799 states have (on average 1.2943908538763844) internal successors, (3623), 2900 states have internal predecessors, (3623), 442 states have call successors, (442), 343 states have call predecessors, (442), 456 states have return successors, (638), 460 states have call predecessors, (638), 441 states have call successors, (638) [2023-12-16 08:10:39,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 4703 transitions. [2023-12-16 08:10:39,323 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 4703 transitions. Word has length 71 [2023-12-16 08:10:39,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:39,323 INFO L495 AbstractCegarLoop]: Abstraction has 3699 states and 4703 transitions. [2023-12-16 08:10:39,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 08:10:39,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 4703 transitions. [2023-12-16 08:10:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 08:10:39,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:39,325 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, 1, 1] [2023-12-16 08:10:39,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-12-16 08:10:39,528 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 08:10:39,528 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:39,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:39,529 INFO L85 PathProgramCache]: Analyzing trace with hash -344254603, now seen corresponding path program 1 times [2023-12-16 08:10:39,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:39,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061738664] [2023-12-16 08:10:39,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:39,530 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 08:10:39,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:39,530 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 08:10:39,581 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 08:10:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:39,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:39,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:39,639 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 08:10:39,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:39,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:39,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061738664] [2023-12-16 08:10:39,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061738664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:39,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:39,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:39,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736277927] [2023-12-16 08:10:39,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:39,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:39,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:39,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:39,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:39,640 INFO L87 Difference]: Start difference. First operand 3699 states and 4703 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 08:10:40,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:40,082 INFO L93 Difference]: Finished difference Result 10118 states and 12739 transitions. [2023-12-16 08:10:40,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:40,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 76 [2023-12-16 08:10:40,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:40,109 INFO L225 Difference]: With dead ends: 10118 [2023-12-16 08:10:40,109 INFO L226 Difference]: Without dead ends: 5335 [2023-12-16 08:10:40,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 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 08:10:40,118 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 84 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:40,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 900 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:10:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5335 states. [2023-12-16 08:10:40,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5335 to 5335. [2023-12-16 08:10:40,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 3997 states have (on average 1.2747060295221415) internal successors, (5095), 4146 states have internal predecessors, (5095), 646 states have call successors, (646), 511 states have call predecessors, (646), 690 states have return successors, (968), 682 states have call predecessors, (968), 645 states have call successors, (968) [2023-12-16 08:10:40,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 6709 transitions. [2023-12-16 08:10:40,449 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 6709 transitions. Word has length 76 [2023-12-16 08:10:40,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:40,449 INFO L495 AbstractCegarLoop]: Abstraction has 5335 states and 6709 transitions. [2023-12-16 08:10:40,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 08:10:40,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 6709 transitions. [2023-12-16 08:10:40,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 08:10:40,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:40,451 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-16 08:10:40,458 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 08:10:40,655 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 08:10:40,656 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:40,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:40,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1189223520, now seen corresponding path program 1 times [2023-12-16 08:10:40,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:40,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366404733] [2023-12-16 08:10:40,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:40,657 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 08:10:40,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:40,658 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 08:10:40,689 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 08:10:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:40,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:40,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:40,798 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 08:10:40,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:40,798 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:40,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366404733] [2023-12-16 08:10:40,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366404733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:40,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:40,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:40,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094267029] [2023-12-16 08:10:40,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:40,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:10:40,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:40,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:10:40,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:10:40,800 INFO L87 Difference]: Start difference. First operand 5335 states and 6709 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 08:10:41,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:41,447 INFO L93 Difference]: Finished difference Result 10472 states and 13103 transitions. [2023-12-16 08:10:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:41,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 85 [2023-12-16 08:10:41,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:41,468 INFO L225 Difference]: With dead ends: 10472 [2023-12-16 08:10:41,468 INFO L226 Difference]: Without dead ends: 5371 [2023-12-16 08:10:41,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 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 08:10:41,478 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 587 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:41,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 446 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:41,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2023-12-16 08:10:41,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2023-12-16 08:10:41,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 4015 states have (on average 1.2570361145703612) internal successors, (5047), 4182 states have internal predecessors, (5047), 646 states have call successors, (646), 511 states have call predecessors, (646), 708 states have return successors, (968), 682 states have call predecessors, (968), 645 states have call successors, (968) [2023-12-16 08:10:41,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 6661 transitions. [2023-12-16 08:10:41,812 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 6661 transitions. Word has length 85 [2023-12-16 08:10:41,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:41,814 INFO L495 AbstractCegarLoop]: Abstraction has 5371 states and 6661 transitions. [2023-12-16 08:10:41,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 08:10:41,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 6661 transitions. [2023-12-16 08:10:41,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 08:10:41,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:41,817 INFO L195 NwaCegarLoop]: trace histogram [3, 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 08:10:41,820 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 08:10:42,020 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 08:10:42,020 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:42,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:42,021 INFO L85 PathProgramCache]: Analyzing trace with hash -347973711, now seen corresponding path program 1 times [2023-12-16 08:10:42,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:42,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211828006] [2023-12-16 08:10:42,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:42,021 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 08:10:42,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:42,022 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 08:10:42,052 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 08:10:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:42,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:42,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:42,105 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 08:10:42,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:42,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:42,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211828006] [2023-12-16 08:10:42,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211828006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:42,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:42,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:42,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81321210] [2023-12-16 08:10:42,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:42,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:42,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:42,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:42,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:42,106 INFO L87 Difference]: Start difference. First operand 5371 states and 6661 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 08:10:42,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:42,474 INFO L93 Difference]: Finished difference Result 10247 states and 12633 transitions. [2023-12-16 08:10:42,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:42,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 86 [2023-12-16 08:10:42,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:42,487 INFO L225 Difference]: With dead ends: 10247 [2023-12-16 08:10:42,487 INFO L226 Difference]: Without dead ends: 5374 [2023-12-16 08:10:42,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 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 08:10:42,495 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 95 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:42,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 894 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:10:42,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5374 states. [2023-12-16 08:10:42,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5374 to 5371. [2023-12-16 08:10:42,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 4015 states have (on average 1.2391033623910337) internal successors, (4975), 4182 states have internal predecessors, (4975), 646 states have call successors, (646), 511 states have call predecessors, (646), 708 states have return successors, (896), 682 states have call predecessors, (896), 645 states have call successors, (896) [2023-12-16 08:10:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 6517 transitions. [2023-12-16 08:10:42,895 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 6517 transitions. Word has length 86 [2023-12-16 08:10:42,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:42,895 INFO L495 AbstractCegarLoop]: Abstraction has 5371 states and 6517 transitions. [2023-12-16 08:10:42,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 08:10:42,895 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 6517 transitions. [2023-12-16 08:10:42,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:42,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:42,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:42,902 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 08:10:43,102 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 08:10:43,103 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:43,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:43,103 INFO L85 PathProgramCache]: Analyzing trace with hash -557399227, now seen corresponding path program 1 times [2023-12-16 08:10:43,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:43,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404474586] [2023-12-16 08:10:43,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:43,104 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 08:10:43,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:43,105 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 08:10:43,106 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 08:10:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:43,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:10:43,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:43,204 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 08:10:43,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:43,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:43,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404474586] [2023-12-16 08:10:43,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404474586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:43,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:43,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:10:43,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672946615] [2023-12-16 08:10:43,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:43,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:10:43,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:43,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:10:43,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:10:43,206 INFO L87 Difference]: Start difference. First operand 5371 states and 6517 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:43,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:43,499 INFO L93 Difference]: Finished difference Result 5569 states and 6829 transitions. [2023-12-16 08:10:43,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:10:43,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:10:43,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:43,511 INFO L225 Difference]: With dead ends: 5569 [2023-12-16 08:10:43,511 INFO L226 Difference]: Without dead ends: 5371 [2023-12-16 08:10:43,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 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 08:10:43,513 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 318 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:43,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 527 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:10:43,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2023-12-16 08:10:43,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2023-12-16 08:10:43,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 4015 states have (on average 1.238854296388543) internal successors, (4974), 4182 states have internal predecessors, (4974), 646 states have call successors, (646), 511 states have call predecessors, (646), 708 states have return successors, (896), 682 states have call predecessors, (896), 645 states have call successors, (896) [2023-12-16 08:10:43,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 6516 transitions. [2023-12-16 08:10:43,786 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 6516 transitions. Word has length 101 [2023-12-16 08:10:43,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:43,786 INFO L495 AbstractCegarLoop]: Abstraction has 5371 states and 6516 transitions. [2023-12-16 08:10:43,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:43,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 6516 transitions. [2023-12-16 08:10:43,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:43,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:43,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:43,808 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 08:10:43,994 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 08:10:43,995 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:43,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:43,995 INFO L85 PathProgramCache]: Analyzing trace with hash 213334339, now seen corresponding path program 1 times [2023-12-16 08:10:43,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:43,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345534183] [2023-12-16 08:10:43,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:43,996 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 08:10:43,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:43,997 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 08:10:44,041 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 08:10:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:44,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:44,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:44,152 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 08:10:44,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:44,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:44,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345534183] [2023-12-16 08:10:44,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345534183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:44,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:44,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:44,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123686027] [2023-12-16 08:10:44,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:44,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:44,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:44,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:44,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:44,153 INFO L87 Difference]: Start difference. First operand 5371 states and 6516 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:44,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:44,752 INFO L93 Difference]: Finished difference Result 5567 states and 6829 transitions. [2023-12-16 08:10:44,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:44,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:10:44,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:44,767 INFO L225 Difference]: With dead ends: 5567 [2023-12-16 08:10:44,767 INFO L226 Difference]: Without dead ends: 5371 [2023-12-16 08:10:44,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:10:44,770 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 583 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:44,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 660 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:44,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2023-12-16 08:10:45,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2023-12-16 08:10:45,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 4015 states have (on average 1.238107098381071) internal successors, (4971), 4182 states have internal predecessors, (4971), 646 states have call successors, (646), 511 states have call predecessors, (646), 708 states have return successors, (896), 682 states have call predecessors, (896), 645 states have call successors, (896) [2023-12-16 08:10:45,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 6513 transitions. [2023-12-16 08:10:45,090 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 6513 transitions. Word has length 101 [2023-12-16 08:10:45,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:45,091 INFO L495 AbstractCegarLoop]: Abstraction has 5371 states and 6513 transitions. [2023-12-16 08:10:45,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:45,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 6513 transitions. [2023-12-16 08:10:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:45,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:45,094 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:45,118 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 (16)] Ended with exit code 0 [2023-12-16 08:10:45,298 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 08:10:45,298 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:45,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:45,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2089817157, now seen corresponding path program 1 times [2023-12-16 08:10:45,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:45,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904623074] [2023-12-16 08:10:45,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:45,299 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 08:10:45,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:45,301 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 08:10:45,332 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 08:10:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:45,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:45,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:45,421 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 08:10:45,422 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:45,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:45,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904623074] [2023-12-16 08:10:45,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904623074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:45,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:45,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:45,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386302928] [2023-12-16 08:10:45,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:45,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:45,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:45,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:45,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:45,423 INFO L87 Difference]: Start difference. First operand 5371 states and 6513 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:46,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:46,054 INFO L93 Difference]: Finished difference Result 5567 states and 6823 transitions. [2023-12-16 08:10:46,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:46,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:10:46,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:46,066 INFO L225 Difference]: With dead ends: 5567 [2023-12-16 08:10:46,066 INFO L226 Difference]: Without dead ends: 5371 [2023-12-16 08:10:46,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:10:46,068 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 577 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:46,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 653 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:46,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2023-12-16 08:10:46,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2023-12-16 08:10:46,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 4015 states have (on average 1.237359900373599) internal successors, (4968), 4182 states have internal predecessors, (4968), 646 states have call successors, (646), 511 states have call predecessors, (646), 708 states have return successors, (896), 682 states have call predecessors, (896), 645 states have call successors, (896) [2023-12-16 08:10:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 6510 transitions. [2023-12-16 08:10:46,466 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 6510 transitions. Word has length 101 [2023-12-16 08:10:46,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:46,466 INFO L495 AbstractCegarLoop]: Abstraction has 5371 states and 6510 transitions. [2023-12-16 08:10:46,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:46,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 6510 transitions. [2023-12-16 08:10:46,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:46,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:46,470 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:46,485 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 08:10:46,674 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 08:10:46,674 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:46,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:46,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1596889605, now seen corresponding path program 1 times [2023-12-16 08:10:46,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:46,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137946428] [2023-12-16 08:10:46,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:46,675 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 08:10:46,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:46,677 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 08:10:46,722 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 08:10:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:46,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:46,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:46,834 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 08:10:46,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:46,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:46,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137946428] [2023-12-16 08:10:46,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137946428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:46,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:46,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:46,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491476100] [2023-12-16 08:10:46,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:46,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:46,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:46,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:46,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:46,837 INFO L87 Difference]: Start difference. First operand 5371 states and 6510 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:47,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:47,527 INFO L93 Difference]: Finished difference Result 5567 states and 6817 transitions. [2023-12-16 08:10:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:47,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:10:47,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:47,539 INFO L225 Difference]: With dead ends: 5567 [2023-12-16 08:10:47,539 INFO L226 Difference]: Without dead ends: 5371 [2023-12-16 08:10:47,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:10:47,541 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 571 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:47,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 646 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:47,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2023-12-16 08:10:47,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2023-12-16 08:10:47,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 4015 states have (on average 1.236612702366127) internal successors, (4965), 4182 states have internal predecessors, (4965), 646 states have call successors, (646), 511 states have call predecessors, (646), 708 states have return successors, (896), 682 states have call predecessors, (896), 645 states have call successors, (896) [2023-12-16 08:10:47,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 6507 transitions. [2023-12-16 08:10:47,937 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 6507 transitions. Word has length 101 [2023-12-16 08:10:47,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:47,937 INFO L495 AbstractCegarLoop]: Abstraction has 5371 states and 6507 transitions. [2023-12-16 08:10:47,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:47,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 6507 transitions. [2023-12-16 08:10:47,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:47,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:47,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:47,945 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 (18)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:48,144 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 08:10:48,145 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:48,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:48,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1882694587, now seen corresponding path program 1 times [2023-12-16 08:10:48,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:48,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115355142] [2023-12-16 08:10:48,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:48,146 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 08:10:48,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:48,150 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 08:10:48,152 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 08:10:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:48,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:48,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:48,335 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 08:10:48,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:48,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:48,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115355142] [2023-12-16 08:10:48,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115355142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:48,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:48,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:48,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369261128] [2023-12-16 08:10:48,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:48,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:48,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:48,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:48,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:48,341 INFO L87 Difference]: Start difference. First operand 5371 states and 6507 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:49,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:49,201 INFO L93 Difference]: Finished difference Result 5567 states and 6811 transitions. [2023-12-16 08:10:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:49,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:10:49,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:49,214 INFO L225 Difference]: With dead ends: 5567 [2023-12-16 08:10:49,215 INFO L226 Difference]: Without dead ends: 5371 [2023-12-16 08:10:49,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:10:49,217 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 565 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:49,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 639 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:10:49,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2023-12-16 08:10:49,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2023-12-16 08:10:49,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 4015 states have (on average 1.235865504358655) internal successors, (4962), 4182 states have internal predecessors, (4962), 646 states have call successors, (646), 511 states have call predecessors, (646), 708 states have return successors, (896), 682 states have call predecessors, (896), 645 states have call successors, (896) [2023-12-16 08:10:49,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 6504 transitions. [2023-12-16 08:10:49,613 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 6504 transitions. Word has length 101 [2023-12-16 08:10:49,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:49,613 INFO L495 AbstractCegarLoop]: Abstraction has 5371 states and 6504 transitions. [2023-12-16 08:10:49,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:49,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 6504 transitions. [2023-12-16 08:10:49,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:49,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:49,615 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:49,620 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 08:10:49,829 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 08:10:49,830 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:49,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:49,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1607291397, now seen corresponding path program 1 times [2023-12-16 08:10:49,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:49,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056975063] [2023-12-16 08:10:49,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:49,831 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 08:10:49,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:49,832 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 08:10:49,834 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 08:10:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:49,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:49,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:49,995 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 08:10:49,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:49,996 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:49,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056975063] [2023-12-16 08:10:49,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056975063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:49,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:49,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:49,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553371820] [2023-12-16 08:10:49,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:49,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:49,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:49,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:49,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:49,998 INFO L87 Difference]: Start difference. First operand 5371 states and 6504 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:50,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:50,686 INFO L93 Difference]: Finished difference Result 5567 states and 6805 transitions. [2023-12-16 08:10:50,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:50,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:10:50,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:50,696 INFO L225 Difference]: With dead ends: 5567 [2023-12-16 08:10:50,696 INFO L226 Difference]: Without dead ends: 5371 [2023-12-16 08:10:50,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:10:50,697 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 559 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:50,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 632 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:50,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2023-12-16 08:10:51,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2023-12-16 08:10:51,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 4015 states have (on average 1.235118306351183) internal successors, (4959), 4182 states have internal predecessors, (4959), 646 states have call successors, (646), 511 states have call predecessors, (646), 708 states have return successors, (896), 682 states have call predecessors, (896), 645 states have call successors, (896) [2023-12-16 08:10:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 6501 transitions. [2023-12-16 08:10:51,225 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 6501 transitions. Word has length 101 [2023-12-16 08:10:51,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:51,225 INFO L495 AbstractCegarLoop]: Abstraction has 5371 states and 6501 transitions. [2023-12-16 08:10:51,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:51,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 6501 transitions. [2023-12-16 08:10:51,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:51,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:51,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:51,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:51,434 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 08:10:51,434 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:51,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:51,434 INFO L85 PathProgramCache]: Analyzing trace with hash 611492933, now seen corresponding path program 1 times [2023-12-16 08:10:51,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:51,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818523172] [2023-12-16 08:10:51,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:51,435 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 08:10:51,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:51,437 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 08:10:51,438 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 08:10:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:51,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:51,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:51,594 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 08:10:51,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:51,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:51,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818523172] [2023-12-16 08:10:51,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818523172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:51,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:51,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:51,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438245219] [2023-12-16 08:10:51,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:51,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:51,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:51,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:51,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:51,597 INFO L87 Difference]: Start difference. First operand 5371 states and 6501 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:52,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:52,357 INFO L93 Difference]: Finished difference Result 5567 states and 6799 transitions. [2023-12-16 08:10:52,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:10:52,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:10:52,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:52,368 INFO L225 Difference]: With dead ends: 5567 [2023-12-16 08:10:52,368 INFO L226 Difference]: Without dead ends: 5371 [2023-12-16 08:10:52,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:10:52,369 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 553 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:52,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 625 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:10:52,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5371 states. [2023-12-16 08:10:52,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371. [2023-12-16 08:10:52,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5371 states, 4015 states have (on average 1.234371108343711) internal successors, (4956), 4182 states have internal predecessors, (4956), 646 states have call successors, (646), 511 states have call predecessors, (646), 708 states have return successors, (896), 682 states have call predecessors, (896), 645 states have call successors, (896) [2023-12-16 08:10:52,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 6498 transitions. [2023-12-16 08:10:52,798 INFO L78 Accepts]: Start accepts. Automaton has 5371 states and 6498 transitions. Word has length 101 [2023-12-16 08:10:52,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:52,798 INFO L495 AbstractCegarLoop]: Abstraction has 5371 states and 6498 transitions. [2023-12-16 08:10:52,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:52,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5371 states and 6498 transitions. [2023-12-16 08:10:52,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:52,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:52,802 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:52,819 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 08:10:53,007 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 08:10:53,007 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:53,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:53,008 INFO L85 PathProgramCache]: Analyzing trace with hash -390460923, now seen corresponding path program 1 times [2023-12-16 08:10:53,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:53,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080096069] [2023-12-16 08:10:53,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:53,008 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 08:10:53,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:53,013 INFO L229 MonitoredProcess]: Starting monitored process 22 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 08:10:53,014 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 (22)] Waiting until timeout for monitored process [2023-12-16 08:10:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:53,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:53,101 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:53,162 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 08:10:53,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:53,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:53,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080096069] [2023-12-16 08:10:53,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080096069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:53,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:53,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:53,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608871475] [2023-12-16 08:10:53,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:53,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:53,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:53,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:53,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:53,164 INFO L87 Difference]: Start difference. First operand 5371 states and 6498 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:54,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:54,002 INFO L93 Difference]: Finished difference Result 5614 states and 6870 transitions. [2023-12-16 08:10:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:54,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:10:54,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:54,013 INFO L225 Difference]: With dead ends: 5614 [2023-12-16 08:10:54,013 INFO L226 Difference]: Without dead ends: 5418 [2023-12-16 08:10:54,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:10:54,015 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 607 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:54,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 619 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:10:54,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5418 states. [2023-12-16 08:10:54,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5418 to 5418. [2023-12-16 08:10:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 4059 states have (on average 1.2360187238236018) internal successors, (5017), 4226 states have internal predecessors, (5017), 647 states have call successors, (647), 513 states have call predecessors, (647), 710 states have return successors, (897), 683 states have call predecessors, (897), 646 states have call successors, (897) [2023-12-16 08:10:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 6561 transitions. [2023-12-16 08:10:54,520 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 6561 transitions. Word has length 101 [2023-12-16 08:10:54,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:54,520 INFO L495 AbstractCegarLoop]: Abstraction has 5418 states and 6561 transitions. [2023-12-16 08:10:54,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:54,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 6561 transitions. [2023-12-16 08:10:54,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:54,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:54,525 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:54,529 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 (22)] Ended with exit code 0 [2023-12-16 08:10:54,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 08:10:54,732 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:54,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash -284234683, now seen corresponding path program 1 times [2023-12-16 08:10:54,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:54,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101338217] [2023-12-16 08:10:54,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:54,733 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 08:10:54,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:54,734 INFO L229 MonitoredProcess]: Starting monitored process 23 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 08:10:54,734 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 (23)] Waiting until timeout for monitored process [2023-12-16 08:10:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:54,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:54,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:54,855 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 08:10:54,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:54,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:54,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101338217] [2023-12-16 08:10:54,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101338217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:54,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:54,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:54,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744638574] [2023-12-16 08:10:54,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:54,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:54,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:54,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:54,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:54,856 INFO L87 Difference]: Start difference. First operand 5418 states and 6561 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:55,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:55,735 INFO L93 Difference]: Finished difference Result 5708 states and 6996 transitions. [2023-12-16 08:10:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:55,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:10:55,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:55,745 INFO L225 Difference]: With dead ends: 5708 [2023-12-16 08:10:55,745 INFO L226 Difference]: Without dead ends: 5465 [2023-12-16 08:10:55,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:10:55,747 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 599 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:55,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 612 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:10:55,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5465 states. [2023-12-16 08:10:56,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5465 to 5465. [2023-12-16 08:10:56,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5465 states, 4103 states have (on average 1.2371435534974409) internal successors, (5076), 4270 states have internal predecessors, (5076), 648 states have call successors, (648), 515 states have call predecessors, (648), 712 states have return successors, (898), 684 states have call predecessors, (898), 647 states have call successors, (898) [2023-12-16 08:10:56,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5465 states to 5465 states and 6622 transitions. [2023-12-16 08:10:56,224 INFO L78 Accepts]: Start accepts. Automaton has 5465 states and 6622 transitions. Word has length 101 [2023-12-16 08:10:56,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:56,224 INFO L495 AbstractCegarLoop]: Abstraction has 5465 states and 6622 transitions. [2023-12-16 08:10:56,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:56,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5465 states and 6622 transitions. [2023-12-16 08:10:56,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:56,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:56,227 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:56,232 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 (23)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:56,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 08:10:56,432 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:56,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:56,432 INFO L85 PathProgramCache]: Analyzing trace with hash -257169081, now seen corresponding path program 1 times [2023-12-16 08:10:56,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:56,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049053741] [2023-12-16 08:10:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:56,433 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 08:10:56,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:56,434 INFO L229 MonitoredProcess]: Starting monitored process 24 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 08:10:56,435 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 (24)] Waiting until timeout for monitored process [2023-12-16 08:10:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:56,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:56,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:56,577 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 08:10:56,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:56,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:56,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049053741] [2023-12-16 08:10:56,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049053741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:56,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:56,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:56,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625652529] [2023-12-16 08:10:56,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:56,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:56,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:56,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:56,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:56,578 INFO L87 Difference]: Start difference. First operand 5465 states and 6622 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:57,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:57,444 INFO L93 Difference]: Finished difference Result 5802 states and 7118 transitions. [2023-12-16 08:10:57,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:57,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:10:57,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:57,454 INFO L225 Difference]: With dead ends: 5802 [2023-12-16 08:10:57,454 INFO L226 Difference]: Without dead ends: 5512 [2023-12-16 08:10:57,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:10:57,456 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 593 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:57,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 605 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:10:57,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5512 states. [2023-12-16 08:10:57,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5512 to 5512. [2023-12-16 08:10:57,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5512 states, 4147 states have (on average 1.2377622377622377) internal successors, (5133), 4314 states have internal predecessors, (5133), 649 states have call successors, (649), 517 states have call predecessors, (649), 714 states have return successors, (899), 685 states have call predecessors, (899), 648 states have call successors, (899) [2023-12-16 08:10:58,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5512 states to 5512 states and 6681 transitions. [2023-12-16 08:10:58,000 INFO L78 Accepts]: Start accepts. Automaton has 5512 states and 6681 transitions. Word has length 101 [2023-12-16 08:10:58,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:58,000 INFO L495 AbstractCegarLoop]: Abstraction has 5512 states and 6681 transitions. [2023-12-16 08:10:58,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:58,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5512 states and 6681 transitions. [2023-12-16 08:10:58,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:58,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:58,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:58,026 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 (24)] Forceful destruction successful, exit code 0 [2023-12-16 08:10:58,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 08:10:58,207 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:10:58,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:10:58,207 INFO L85 PathProgramCache]: Analyzing trace with hash 2109384648, now seen corresponding path program 1 times [2023-12-16 08:10:58,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:10:58,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500682690] [2023-12-16 08:10:58,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:10:58,208 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 08:10:58,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:10:58,209 INFO L229 MonitoredProcess]: Starting monitored process 25 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 08:10:58,211 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 (25)] Waiting until timeout for monitored process [2023-12-16 08:10:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:10:58,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:10:58,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:10:58,338 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 08:10:58,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:10:58,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:10:58,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500682690] [2023-12-16 08:10:58,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500682690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:10:58,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:10:58,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:10:58,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372022979] [2023-12-16 08:10:58,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:10:58,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:10:58,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:10:58,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:10:58,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:10:58,339 INFO L87 Difference]: Start difference. First operand 5512 states and 6681 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:59,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:10:59,302 INFO L93 Difference]: Finished difference Result 5896 states and 7236 transitions. [2023-12-16 08:10:59,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:10:59,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:10:59,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:10:59,313 INFO L225 Difference]: With dead ends: 5896 [2023-12-16 08:10:59,313 INFO L226 Difference]: Without dead ends: 5559 [2023-12-16 08:10:59,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:10:59,315 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 586 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:10:59,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 598 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:10:59,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5559 states. [2023-12-16 08:10:59,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5559 to 5559. [2023-12-16 08:10:59,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5559 states, 4191 states have (on average 1.2378907182056789) internal successors, (5188), 4358 states have internal predecessors, (5188), 650 states have call successors, (650), 519 states have call predecessors, (650), 716 states have return successors, (900), 686 states have call predecessors, (900), 649 states have call successors, (900) [2023-12-16 08:10:59,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5559 states to 5559 states and 6738 transitions. [2023-12-16 08:10:59,895 INFO L78 Accepts]: Start accepts. Automaton has 5559 states and 6738 transitions. Word has length 101 [2023-12-16 08:10:59,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:10:59,896 INFO L495 AbstractCegarLoop]: Abstraction has 5559 states and 6738 transitions. [2023-12-16 08:10:59,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:10:59,896 INFO L276 IsEmpty]: Start isEmpty. Operand 5559 states and 6738 transitions. [2023-12-16 08:10:59,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:10:59,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:10:59,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:59,905 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 (25)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:00,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 08:11:00,102 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:00,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:00,103 INFO L85 PathProgramCache]: Analyzing trace with hash 163708071, now seen corresponding path program 1 times [2023-12-16 08:11:00,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:00,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125472124] [2023-12-16 08:11:00,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:00,104 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 08:11:00,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:00,105 INFO L229 MonitoredProcess]: Starting monitored process 26 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 08:11:00,106 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 (26)] Waiting until timeout for monitored process [2023-12-16 08:11:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:00,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:00,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:00,231 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 08:11:00,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:00,232 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:00,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125472124] [2023-12-16 08:11:00,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125472124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:00,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:00,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:00,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819909318] [2023-12-16 08:11:00,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:00,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:00,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:00,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:00,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:00,233 INFO L87 Difference]: Start difference. First operand 5559 states and 6738 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:01,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:01,373 INFO L93 Difference]: Finished difference Result 5990 states and 7350 transitions. [2023-12-16 08:11:01,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:11:01,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:11:01,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:01,385 INFO L225 Difference]: With dead ends: 5990 [2023-12-16 08:11:01,385 INFO L226 Difference]: Without dead ends: 5606 [2023-12-16 08:11:01,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:11:01,387 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 579 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:01,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 591 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:11:01,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5606 states. [2023-12-16 08:11:02,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5606 to 5606. [2023-12-16 08:11:02,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 4235 states have (on average 1.2375442739079103) internal successors, (5241), 4402 states have internal predecessors, (5241), 651 states have call successors, (651), 521 states have call predecessors, (651), 718 states have return successors, (901), 687 states have call predecessors, (901), 650 states have call successors, (901) [2023-12-16 08:11:02,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 6793 transitions. [2023-12-16 08:11:02,110 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 6793 transitions. Word has length 101 [2023-12-16 08:11:02,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:02,111 INFO L495 AbstractCegarLoop]: Abstraction has 5606 states and 6793 transitions. [2023-12-16 08:11:02,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 6793 transitions. [2023-12-16 08:11:02,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:11:02,113 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:02,113 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:02,116 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 (26)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:02,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 08:11:02,317 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:02,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:02,317 INFO L85 PathProgramCache]: Analyzing trace with hash -638012825, now seen corresponding path program 1 times [2023-12-16 08:11:02,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:02,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272733953] [2023-12-16 08:11:02,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:02,318 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 08:11:02,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:02,319 INFO L229 MonitoredProcess]: Starting monitored process 27 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 08:11:02,320 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 (27)] Waiting until timeout for monitored process [2023-12-16 08:11:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:02,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:02,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:02,463 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 08:11:02,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:02,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:02,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272733953] [2023-12-16 08:11:02,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272733953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:02,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:02,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:02,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454889656] [2023-12-16 08:11:02,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:02,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:02,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:02,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:02,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:02,465 INFO L87 Difference]: Start difference. First operand 5606 states and 6793 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:03,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:03,443 INFO L93 Difference]: Finished difference Result 6084 states and 7460 transitions. [2023-12-16 08:11:03,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:11:03,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:11:03,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:03,452 INFO L225 Difference]: With dead ends: 6084 [2023-12-16 08:11:03,452 INFO L226 Difference]: Without dead ends: 5653 [2023-12-16 08:11:03,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 08:11:03,453 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 572 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:03,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 584 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:11:03,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5653 states. [2023-12-16 08:11:04,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5653 to 5653. [2023-12-16 08:11:04,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5653 states, 4279 states have (on average 1.2367375555036224) internal successors, (5292), 4446 states have internal predecessors, (5292), 652 states have call successors, (652), 523 states have call predecessors, (652), 720 states have return successors, (902), 688 states have call predecessors, (902), 651 states have call successors, (902) [2023-12-16 08:11:04,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5653 states to 5653 states and 6846 transitions. [2023-12-16 08:11:04,168 INFO L78 Accepts]: Start accepts. Automaton has 5653 states and 6846 transitions. Word has length 101 [2023-12-16 08:11:04,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:04,168 INFO L495 AbstractCegarLoop]: Abstraction has 5653 states and 6846 transitions. [2023-12-16 08:11:04,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:04,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5653 states and 6846 transitions. [2023-12-16 08:11:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:11:04,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:04,170 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:04,174 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 (27)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:04,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 08:11:04,375 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:04,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:04,375 INFO L85 PathProgramCache]: Analyzing trace with hash 275087878, now seen corresponding path program 1 times [2023-12-16 08:11:04,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:04,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495828351] [2023-12-16 08:11:04,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:04,376 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 08:11:04,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:04,377 INFO L229 MonitoredProcess]: Starting monitored process 28 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 08:11:04,383 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 (28)] Waiting until timeout for monitored process [2023-12-16 08:11:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:04,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:04,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:04,488 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 08:11:04,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:04,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:04,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495828351] [2023-12-16 08:11:04,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495828351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:04,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:04,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:04,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604735480] [2023-12-16 08:11:04,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:04,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:04,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:04,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:04,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:04,490 INFO L87 Difference]: Start difference. First operand 5653 states and 6846 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:05,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:05,133 INFO L93 Difference]: Finished difference Result 6170 states and 7554 transitions. [2023-12-16 08:11:05,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:05,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:11:05,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:05,140 INFO L225 Difference]: With dead ends: 6170 [2023-12-16 08:11:05,140 INFO L226 Difference]: Without dead ends: 5693 [2023-12-16 08:11:05,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:05,142 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 56 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:05,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1127 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:05,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2023-12-16 08:11:05,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 5655. [2023-12-16 08:11:05,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5655 states, 4281 states have (on average 1.2352254146227517) internal successors, (5288), 4448 states have internal predecessors, (5288), 652 states have call successors, (652), 523 states have call predecessors, (652), 720 states have return successors, (902), 688 states have call predecessors, (902), 651 states have call successors, (902) [2023-12-16 08:11:05,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5655 states to 5655 states and 6842 transitions. [2023-12-16 08:11:05,778 INFO L78 Accepts]: Start accepts. Automaton has 5655 states and 6842 transitions. Word has length 101 [2023-12-16 08:11:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:05,778 INFO L495 AbstractCegarLoop]: Abstraction has 5655 states and 6842 transitions. [2023-12-16 08:11:05,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:05,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5655 states and 6842 transitions. [2023-12-16 08:11:05,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:11:05,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:05,780 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:05,784 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 (28)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:05,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 08:11:05,984 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:05,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:05,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1411091960, now seen corresponding path program 1 times [2023-12-16 08:11:05,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:05,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340877432] [2023-12-16 08:11:05,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:05,985 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 08:11:05,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:05,986 INFO L229 MonitoredProcess]: Starting monitored process 29 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 08:11:05,987 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 (29)] Waiting until timeout for monitored process [2023-12-16 08:11:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:06,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:06,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:06,116 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 08:11:06,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:06,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:06,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340877432] [2023-12-16 08:11:06,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340877432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:06,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:06,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:11:06,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607335998] [2023-12-16 08:11:06,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:06,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:06,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:06,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:06,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:06,117 INFO L87 Difference]: Start difference. First operand 5655 states and 6842 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:06,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:06,800 INFO L93 Difference]: Finished difference Result 6555 states and 8042 transitions. [2023-12-16 08:11:06,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:06,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:11:06,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:06,810 INFO L225 Difference]: With dead ends: 6555 [2023-12-16 08:11:06,810 INFO L226 Difference]: Without dead ends: 6076 [2023-12-16 08:11:06,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 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 08:11:06,813 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 364 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:06,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 660 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:06,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2023-12-16 08:11:07,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 6073. [2023-12-16 08:11:07,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6073 states, 4663 states have (on average 1.2419043534205447) internal successors, (5791), 4830 states have internal predecessors, (5791), 672 states have call successors, (672), 539 states have call predecessors, (672), 736 states have return successors, (922), 708 states have call predecessors, (922), 671 states have call successors, (922) [2023-12-16 08:11:07,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6073 states to 6073 states and 7385 transitions. [2023-12-16 08:11:07,528 INFO L78 Accepts]: Start accepts. Automaton has 6073 states and 7385 transitions. Word has length 101 [2023-12-16 08:11:07,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:07,528 INFO L495 AbstractCegarLoop]: Abstraction has 6073 states and 7385 transitions. [2023-12-16 08:11:07,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:07,529 INFO L276 IsEmpty]: Start isEmpty. Operand 6073 states and 7385 transitions. [2023-12-16 08:11:07,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:11:07,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:07,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:07,534 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 (29)] Ended with exit code 0 [2023-12-16 08:11:07,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 08:11:07,735 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:07,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:07,735 INFO L85 PathProgramCache]: Analyzing trace with hash -834163319, now seen corresponding path program 1 times [2023-12-16 08:11:07,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:07,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502925093] [2023-12-16 08:11:07,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:07,736 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 08:11:07,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:07,737 INFO L229 MonitoredProcess]: Starting monitored process 30 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 08:11:07,767 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 (30)] Waiting until timeout for monitored process [2023-12-16 08:11:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:07,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:07,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:07,840 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 08:11:07,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:07,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:07,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502925093] [2023-12-16 08:11:07,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502925093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:07,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:07,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:07,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96169238] [2023-12-16 08:11:07,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:07,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:07,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:07,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:07,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:07,842 INFO L87 Difference]: Start difference. First operand 6073 states and 7385 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:08,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:08,552 INFO L93 Difference]: Finished difference Result 7208 states and 8914 transitions. [2023-12-16 08:11:08,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:08,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:11:08,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:08,562 INFO L225 Difference]: With dead ends: 7208 [2023-12-16 08:11:08,562 INFO L226 Difference]: Without dead ends: 6311 [2023-12-16 08:11:08,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:08,565 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 47 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:08,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1140 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:08,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6311 states. [2023-12-16 08:11:09,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6311 to 6087. [2023-12-16 08:11:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6087 states, 4677 states have (on average 1.2398973701090443) internal successors, (5799), 4844 states have internal predecessors, (5799), 672 states have call successors, (672), 539 states have call predecessors, (672), 736 states have return successors, (922), 708 states have call predecessors, (922), 671 states have call successors, (922) [2023-12-16 08:11:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6087 states to 6087 states and 7393 transitions. [2023-12-16 08:11:09,250 INFO L78 Accepts]: Start accepts. Automaton has 6087 states and 7393 transitions. Word has length 101 [2023-12-16 08:11:09,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:09,251 INFO L495 AbstractCegarLoop]: Abstraction has 6087 states and 7393 transitions. [2023-12-16 08:11:09,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand 6087 states and 7393 transitions. [2023-12-16 08:11:09,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:11:09,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:09,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:09,256 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 (30)] Ended with exit code 0 [2023-12-16 08:11:09,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 08:11:09,457 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:09,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:09,457 INFO L85 PathProgramCache]: Analyzing trace with hash -632339385, now seen corresponding path program 1 times [2023-12-16 08:11:09,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:09,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386903071] [2023-12-16 08:11:09,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:09,458 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 08:11:09,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:09,459 INFO L229 MonitoredProcess]: Starting monitored process 31 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 08:11:09,484 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 (31)] Waiting until timeout for monitored process [2023-12-16 08:11:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:09,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:09,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:09,551 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 08:11:09,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:09,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:09,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386903071] [2023-12-16 08:11:09,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386903071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:09,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:09,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:09,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619400878] [2023-12-16 08:11:09,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:09,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:09,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:09,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:09,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:09,553 INFO L87 Difference]: Start difference. First operand 6087 states and 7393 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:10,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:10,227 INFO L93 Difference]: Finished difference Result 7026 states and 8645 transitions. [2023-12-16 08:11:10,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:10,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:11:10,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:10,236 INFO L225 Difference]: With dead ends: 7026 [2023-12-16 08:11:10,236 INFO L226 Difference]: Without dead ends: 6115 [2023-12-16 08:11:10,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:10,239 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 38 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:10,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1128 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:10,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6115 states. [2023-12-16 08:11:10,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6115 to 6089. [2023-12-16 08:11:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 4679 states have (on average 1.2372301773883307) internal successors, (5789), 4846 states have internal predecessors, (5789), 672 states have call successors, (672), 539 states have call predecessors, (672), 736 states have return successors, (922), 708 states have call predecessors, (922), 671 states have call successors, (922) [2023-12-16 08:11:10,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 7383 transitions. [2023-12-16 08:11:10,900 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 7383 transitions. Word has length 101 [2023-12-16 08:11:10,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:10,900 INFO L495 AbstractCegarLoop]: Abstraction has 6089 states and 7383 transitions. [2023-12-16 08:11:10,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:10,900 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 7383 transitions. [2023-12-16 08:11:10,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:11:10,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:10,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:10,906 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 (31)] Ended with exit code 0 [2023-12-16 08:11:11,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 08:11:11,106 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:11,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:11,107 INFO L85 PathProgramCache]: Analyzing trace with hash 754446025, now seen corresponding path program 1 times [2023-12-16 08:11:11,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:11,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938068867] [2023-12-16 08:11:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:11,107 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 08:11:11,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:11,108 INFO L229 MonitoredProcess]: Starting monitored process 32 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 08:11:11,112 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 (32)] Waiting until timeout for monitored process [2023-12-16 08:11:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:11,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:11,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:11,202 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 08:11:11,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:11,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:11,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938068867] [2023-12-16 08:11:11,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938068867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:11,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:11,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:11,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775563155] [2023-12-16 08:11:11,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:11,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:11,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:11,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:11,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:11,204 INFO L87 Difference]: Start difference. First operand 6089 states and 7383 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:11,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:11,880 INFO L93 Difference]: Finished difference Result 7046 states and 8646 transitions. [2023-12-16 08:11:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:11,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:11:11,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:11,889 INFO L225 Difference]: With dead ends: 7046 [2023-12-16 08:11:11,889 INFO L226 Difference]: Without dead ends: 6133 [2023-12-16 08:11:11,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:11,891 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 29 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:11,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1132 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:11,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6133 states. [2023-12-16 08:11:12,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6133 to 6093. [2023-12-16 08:11:12,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6093 states, 4683 states have (on average 1.234678624813154) internal successors, (5782), 4850 states have internal predecessors, (5782), 672 states have call successors, (672), 539 states have call predecessors, (672), 736 states have return successors, (922), 708 states have call predecessors, (922), 671 states have call successors, (922) [2023-12-16 08:11:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6093 states to 6093 states and 7376 transitions. [2023-12-16 08:11:12,562 INFO L78 Accepts]: Start accepts. Automaton has 6093 states and 7376 transitions. Word has length 101 [2023-12-16 08:11:12,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:12,562 INFO L495 AbstractCegarLoop]: Abstraction has 6093 states and 7376 transitions. [2023-12-16 08:11:12,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:12,563 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states and 7376 transitions. [2023-12-16 08:11:12,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:11:12,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:12,565 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:12,568 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 (32)] Ended with exit code 0 [2023-12-16 08:11:12,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 08:11:12,768 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:12,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash 273365767, now seen corresponding path program 1 times [2023-12-16 08:11:12,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:12,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470553926] [2023-12-16 08:11:12,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:12,769 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 08:11:12,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:12,771 INFO L229 MonitoredProcess]: Starting monitored process 33 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 08:11:12,799 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 (33)] Waiting until timeout for monitored process [2023-12-16 08:11:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:12,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:12,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:12,863 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 08:11:12,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:12,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:12,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470553926] [2023-12-16 08:11:12,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470553926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:12,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:12,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:12,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641843099] [2023-12-16 08:11:12,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:12,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:12,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:12,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:12,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:12,865 INFO L87 Difference]: Start difference. First operand 6093 states and 7376 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:13,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:13,551 INFO L93 Difference]: Finished difference Result 7042 states and 8616 transitions. [2023-12-16 08:11:13,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:13,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:11:13,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:13,565 INFO L225 Difference]: With dead ends: 7042 [2023-12-16 08:11:13,565 INFO L226 Difference]: Without dead ends: 6125 [2023-12-16 08:11:13,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:13,569 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 20 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:13,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1130 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:13,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6125 states. [2023-12-16 08:11:14,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6125 to 6097. [2023-12-16 08:11:14,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6097 states, 4687 states have (on average 1.232131427352251) internal successors, (5775), 4854 states have internal predecessors, (5775), 672 states have call successors, (672), 539 states have call predecessors, (672), 736 states have return successors, (922), 708 states have call predecessors, (922), 671 states have call successors, (922) [2023-12-16 08:11:14,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6097 states to 6097 states and 7369 transitions. [2023-12-16 08:11:14,232 INFO L78 Accepts]: Start accepts. Automaton has 6097 states and 7369 transitions. Word has length 101 [2023-12-16 08:11:14,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:14,233 INFO L495 AbstractCegarLoop]: Abstraction has 6097 states and 7369 transitions. [2023-12-16 08:11:14,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:14,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6097 states and 7369 transitions. [2023-12-16 08:11:14,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:11:14,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:14,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:14,240 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 (33)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:14,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 08:11:14,439 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:14,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:14,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1166852105, now seen corresponding path program 1 times [2023-12-16 08:11:14,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:14,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701513861] [2023-12-16 08:11:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:14,440 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 08:11:14,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:14,441 INFO L229 MonitoredProcess]: Starting monitored process 34 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 08:11:14,442 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 (34)] Waiting until timeout for monitored process [2023-12-16 08:11:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:14,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:14,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:14,526 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 08:11:14,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:14,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:14,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701513861] [2023-12-16 08:11:14,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701513861] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:14,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:14,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:14,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115034442] [2023-12-16 08:11:14,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:14,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:14,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:14,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:14,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:14,527 INFO L87 Difference]: Start difference. First operand 6097 states and 7369 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:15,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:15,198 INFO L93 Difference]: Finished difference Result 7026 states and 8570 transitions. [2023-12-16 08:11:15,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:11:15,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:11:15,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:15,243 INFO L225 Difference]: With dead ends: 7026 [2023-12-16 08:11:15,243 INFO L226 Difference]: Without dead ends: 6105 [2023-12-16 08:11:15,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:15,245 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 2 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:15,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1132 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:15,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6105 states. [2023-12-16 08:11:16,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6105 to 6101. [2023-12-16 08:11:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6101 states, 4691 states have (on average 1.2295885738648475) internal successors, (5768), 4858 states have internal predecessors, (5768), 672 states have call successors, (672), 539 states have call predecessors, (672), 736 states have return successors, (922), 708 states have call predecessors, (922), 671 states have call successors, (922) [2023-12-16 08:11:16,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 7362 transitions. [2023-12-16 08:11:16,019 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 7362 transitions. Word has length 101 [2023-12-16 08:11:16,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:16,020 INFO L495 AbstractCegarLoop]: Abstraction has 6101 states and 7362 transitions. [2023-12-16 08:11:16,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:16,020 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 7362 transitions. [2023-12-16 08:11:16,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:11:16,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:16,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:16,026 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 (34)] Ended with exit code 0 [2023-12-16 08:11:16,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 08:11:16,230 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:16,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:16,230 INFO L85 PathProgramCache]: Analyzing trace with hash 322846603, now seen corresponding path program 1 times [2023-12-16 08:11:16,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:16,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634763399] [2023-12-16 08:11:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:16,230 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 08:11:16,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:16,240 INFO L229 MonitoredProcess]: Starting monitored process 35 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 08:11:16,240 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 (35)] Waiting until timeout for monitored process [2023-12-16 08:11:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:16,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:11:16,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:16,411 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 08:11:16,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:16,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:16,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634763399] [2023-12-16 08:11:16,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634763399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:16,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:16,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:16,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70014457] [2023-12-16 08:11:16,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:16,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:16,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:16,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:16,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:16,412 INFO L87 Difference]: Start difference. First operand 6101 states and 7362 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:17,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:17,565 INFO L93 Difference]: Finished difference Result 8005 states and 9728 transitions. [2023-12-16 08:11:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:11:17,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:11:17,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:17,579 INFO L225 Difference]: With dead ends: 8005 [2023-12-16 08:11:17,579 INFO L226 Difference]: Without dead ends: 7079 [2023-12-16 08:11:17,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:11:17,582 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 584 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:17,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 789 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:11:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2023-12-16 08:11:18,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 7047. [2023-12-16 08:11:18,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7047 states, 5561 states have (on average 1.2325121381046575) internal successors, (6854), 5730 states have internal predecessors, (6854), 712 states have call successors, (712), 573 states have call predecessors, (712), 772 states have return successors, (964), 748 states have call predecessors, (964), 711 states have call successors, (964) [2023-12-16 08:11:18,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7047 states to 7047 states and 8530 transitions. [2023-12-16 08:11:18,324 INFO L78 Accepts]: Start accepts. Automaton has 7047 states and 8530 transitions. Word has length 101 [2023-12-16 08:11:18,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:18,325 INFO L495 AbstractCegarLoop]: Abstraction has 7047 states and 8530 transitions. [2023-12-16 08:11:18,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:18,325 INFO L276 IsEmpty]: Start isEmpty. Operand 7047 states and 8530 transitions. [2023-12-16 08:11:18,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:11:18,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:18,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:18,331 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 (35)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:18,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /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 08:11:18,531 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:18,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:18,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1024446477, now seen corresponding path program 1 times [2023-12-16 08:11:18,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:18,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080541310] [2023-12-16 08:11:18,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:18,532 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 08:11:18,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:18,533 INFO L229 MonitoredProcess]: Starting monitored process 36 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 08:11:18,536 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 (36)] Waiting until timeout for monitored process [2023-12-16 08:11:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:18,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:11:18,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:18,751 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 08:11:18,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:18,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:18,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080541310] [2023-12-16 08:11:18,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080541310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:18,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:18,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:18,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516293146] [2023-12-16 08:11:18,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:18,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:18,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:18,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:18,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:18,752 INFO L87 Difference]: Start difference. First operand 7047 states and 8530 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:19,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:19,871 INFO L93 Difference]: Finished difference Result 9137 states and 11138 transitions. [2023-12-16 08:11:19,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:11:19,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 08:11:19,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:19,884 INFO L225 Difference]: With dead ends: 9137 [2023-12-16 08:11:19,884 INFO L226 Difference]: Without dead ends: 7265 [2023-12-16 08:11:19,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:11:19,889 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 552 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:19,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 578 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:11:19,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2023-12-16 08:11:20,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 7197. [2023-12-16 08:11:20,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7197 states, 5707 states have (on average 1.225162081654109) internal successors, (6992), 5876 states have internal predecessors, (6992), 712 states have call successors, (712), 577 states have call predecessors, (712), 776 states have return successors, (964), 748 states have call predecessors, (964), 711 states have call successors, (964) [2023-12-16 08:11:20,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7197 states to 7197 states and 8668 transitions. [2023-12-16 08:11:20,736 INFO L78 Accepts]: Start accepts. Automaton has 7197 states and 8668 transitions. Word has length 101 [2023-12-16 08:11:20,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:20,736 INFO L495 AbstractCegarLoop]: Abstraction has 7197 states and 8668 transitions. [2023-12-16 08:11:20,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 08:11:20,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7197 states and 8668 transitions. [2023-12-16 08:11:20,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 08:11:20,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:20,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:20,744 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 (36)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:20,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /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 08:11:20,944 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:20,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:20,944 INFO L85 PathProgramCache]: Analyzing trace with hash -780991857, now seen corresponding path program 1 times [2023-12-16 08:11:20,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:20,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592736760] [2023-12-16 08:11:20,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:20,945 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 08:11:20,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:20,946 INFO L229 MonitoredProcess]: Starting monitored process 37 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 08:11:20,947 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 (37)] Waiting until timeout for monitored process [2023-12-16 08:11:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:21,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:21,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:21,123 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 08:11:21,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:21,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:21,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592736760] [2023-12-16 08:11:21,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592736760] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:21,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:21,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:11:21,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242180511] [2023-12-16 08:11:21,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:21,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:21,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:21,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:21,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:21,124 INFO L87 Difference]: Start difference. First operand 7197 states and 8668 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 08:11:22,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:22,063 INFO L93 Difference]: Finished difference Result 11186 states and 13576 transitions. [2023-12-16 08:11:22,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:22,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 101 [2023-12-16 08:11:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:22,076 INFO L225 Difference]: With dead ends: 11186 [2023-12-16 08:11:22,077 INFO L226 Difference]: Without dead ends: 9165 [2023-12-16 08:11:22,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 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 08:11:22,081 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 302 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:22,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 610 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:22,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9165 states. [2023-12-16 08:11:22,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9165 to 9161. [2023-12-16 08:11:22,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9161 states, 7515 states have (on average 1.221290751829674) internal successors, (9178), 7690 states have internal predecessors, (9178), 794 states have call successors, (794), 649 states have call predecessors, (794), 850 states have return successors, (1048), 826 states have call predecessors, (1048), 793 states have call successors, (1048) [2023-12-16 08:11:22,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9161 states to 9161 states and 11020 transitions. [2023-12-16 08:11:22,961 INFO L78 Accepts]: Start accepts. Automaton has 9161 states and 11020 transitions. Word has length 101 [2023-12-16 08:11:22,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:22,961 INFO L495 AbstractCegarLoop]: Abstraction has 9161 states and 11020 transitions. [2023-12-16 08:11:22,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 08:11:22,961 INFO L276 IsEmpty]: Start isEmpty. Operand 9161 states and 11020 transitions. [2023-12-16 08:11:22,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:11:22,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:22,966 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:22,970 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 (37)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:23,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /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 08:11:23,171 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:23,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:23,171 INFO L85 PathProgramCache]: Analyzing trace with hash 43547049, now seen corresponding path program 1 times [2023-12-16 08:11:23,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:23,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660311459] [2023-12-16 08:11:23,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:23,171 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 08:11:23,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:23,172 INFO L229 MonitoredProcess]: Starting monitored process 38 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 08:11:23,202 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 (38)] Waiting until timeout for monitored process [2023-12-16 08:11:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:23,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:11:23,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:23,275 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 08:11:23,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:23,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:23,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660311459] [2023-12-16 08:11:23,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660311459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:23,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:23,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:11:23,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729053516] [2023-12-16 08:11:23,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:23,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:11:23,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:23,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:11:23,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:11:23,277 INFO L87 Difference]: Start difference. First operand 9161 states and 11020 transitions. Second operand has 6 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 08:11:23,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:23,906 INFO L93 Difference]: Finished difference Result 11875 states and 14280 transitions. [2023-12-16 08:11:23,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:11:23,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2023-12-16 08:11:23,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:23,923 INFO L225 Difference]: With dead ends: 11875 [2023-12-16 08:11:23,923 INFO L226 Difference]: Without dead ends: 6738 [2023-12-16 08:11:23,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 137 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 08:11:23,934 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 32 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:23,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1854 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:23,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6738 states. [2023-12-16 08:11:24,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6738 to 6562. [2023-12-16 08:11:24,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6562 states, 5677 states have (on average 1.2147260877223887) internal successors, (6896), 5742 states have internal predecessors, (6896), 426 states have call successors, (426), 348 states have call predecessors, (426), 457 states have return successors, (542), 472 states have call predecessors, (542), 425 states have call successors, (542) [2023-12-16 08:11:24,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6562 states to 6562 states and 7864 transitions. [2023-12-16 08:11:24,488 INFO L78 Accepts]: Start accepts. Automaton has 6562 states and 7864 transitions. Word has length 142 [2023-12-16 08:11:24,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:24,488 INFO L495 AbstractCegarLoop]: Abstraction has 6562 states and 7864 transitions. [2023-12-16 08:11:24,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 08:11:24,489 INFO L276 IsEmpty]: Start isEmpty. Operand 6562 states and 7864 transitions. [2023-12-16 08:11:24,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 08:11:24,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:24,492 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:24,497 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 (38)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:24,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /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 08:11:24,697 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:24,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:24,698 INFO L85 PathProgramCache]: Analyzing trace with hash -460254446, now seen corresponding path program 1 times [2023-12-16 08:11:24,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:24,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491508733] [2023-12-16 08:11:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:24,711 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 08:11:24,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:24,712 INFO L229 MonitoredProcess]: Starting monitored process 39 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 08:11:24,714 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 (39)] Waiting until timeout for monitored process [2023-12-16 08:11:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:24,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:24,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:24,822 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 08:11:24,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:24,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:24,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491508733] [2023-12-16 08:11:24,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491508733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:24,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:24,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:24,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311997356] [2023-12-16 08:11:24,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:24,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:24,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:24,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:24,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:24,824 INFO L87 Difference]: Start difference. First operand 6562 states and 7864 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 08:11:25,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:25,385 INFO L93 Difference]: Finished difference Result 8663 states and 10434 transitions. [2023-12-16 08:11:25,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:25,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 159 [2023-12-16 08:11:25,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:25,395 INFO L225 Difference]: With dead ends: 8663 [2023-12-16 08:11:25,395 INFO L226 Difference]: Without dead ends: 6556 [2023-12-16 08:11:25,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 157 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 08:11:25,398 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 72 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:25,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 794 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:25,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6556 states. [2023-12-16 08:11:25,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6556 to 6430. [2023-12-16 08:11:25,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6430 states, 5570 states have (on average 1.2057450628366249) internal successors, (6716), 5634 states have internal predecessors, (6716), 414 states have call successors, (414), 340 states have call predecessors, (414), 444 states have return successors, (525), 456 states have call predecessors, (525), 413 states have call successors, (525) [2023-12-16 08:11:25,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6430 states to 6430 states and 7655 transitions. [2023-12-16 08:11:25,883 INFO L78 Accepts]: Start accepts. Automaton has 6430 states and 7655 transitions. Word has length 159 [2023-12-16 08:11:25,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:25,884 INFO L495 AbstractCegarLoop]: Abstraction has 6430 states and 7655 transitions. [2023-12-16 08:11:25,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 08:11:25,884 INFO L276 IsEmpty]: Start isEmpty. Operand 6430 states and 7655 transitions. [2023-12-16 08:11:25,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-16 08:11:25,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:25,888 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 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, 1] [2023-12-16 08:11:25,891 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 (39)] Ended with exit code 0 [2023-12-16 08:11:26,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /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 08:11:26,091 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:26,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:26,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1077507839, now seen corresponding path program 1 times [2023-12-16 08:11:26,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:26,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700790342] [2023-12-16 08:11:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:26,092 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 08:11:26,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:26,093 INFO L229 MonitoredProcess]: Starting monitored process 40 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 08:11:26,094 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 (40)] Waiting until timeout for monitored process [2023-12-16 08:11:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:26,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:11:26,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:26,199 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-16 08:11:26,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:26,199 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:26,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700790342] [2023-12-16 08:11:26,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700790342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:26,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:26,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:11:26,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84625808] [2023-12-16 08:11:26,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:26,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:11:26,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:26,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:11:26,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:11:26,201 INFO L87 Difference]: Start difference. First operand 6430 states and 7655 transitions. Second operand has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 08:11:26,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:26,826 INFO L93 Difference]: Finished difference Result 8431 states and 10016 transitions. [2023-12-16 08:11:26,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:11:26,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 160 [2023-12-16 08:11:26,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:26,839 INFO L225 Difference]: With dead ends: 8431 [2023-12-16 08:11:26,840 INFO L226 Difference]: Without dead ends: 6047 [2023-12-16 08:11:26,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 155 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 08:11:26,844 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 6 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:26,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1865 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:11:26,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6047 states. [2023-12-16 08:11:27,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6047 to 6047. [2023-12-16 08:11:27,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6047 states, 5298 states have (on average 1.206870517176293) internal successors, (6394), 5342 states have internal predecessors, (6394), 365 states have call successors, (365), 297 states have call predecessors, (365), 382 states have return successors, (456), 408 states have call predecessors, (456), 364 states have call successors, (456) [2023-12-16 08:11:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6047 states to 6047 states and 7215 transitions. [2023-12-16 08:11:27,436 INFO L78 Accepts]: Start accepts. Automaton has 6047 states and 7215 transitions. Word has length 160 [2023-12-16 08:11:27,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:27,437 INFO L495 AbstractCegarLoop]: Abstraction has 6047 states and 7215 transitions. [2023-12-16 08:11:27,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 08:11:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand 6047 states and 7215 transitions. [2023-12-16 08:11:27,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-16 08:11:27,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:27,441 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1] [2023-12-16 08:11:27,454 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 (40)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:27,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /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 08:11:27,645 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:27,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash -416968786, now seen corresponding path program 1 times [2023-12-16 08:11:27,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:27,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794334520] [2023-12-16 08:11:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:27,646 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 08:11:27,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:27,647 INFO L229 MonitoredProcess]: Starting monitored process 41 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 08:11:27,649 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 (41)] Waiting until timeout for monitored process [2023-12-16 08:11:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:27,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:11:27,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-12-16 08:11:27,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:27,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:27,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794334520] [2023-12-16 08:11:27,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794334520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:27,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:27,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:27,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492444511] [2023-12-16 08:11:27,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:27,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:11:27,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:27,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:11:27,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:11:27,785 INFO L87 Difference]: Start difference. First operand 6047 states and 7215 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 08:11:28,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:28,840 INFO L93 Difference]: Finished difference Result 9717 states and 11530 transitions. [2023-12-16 08:11:28,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:11:28,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 162 [2023-12-16 08:11:28,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:28,853 INFO L225 Difference]: With dead ends: 9717 [2023-12-16 08:11:28,854 INFO L226 Difference]: Without dead ends: 7515 [2023-12-16 08:11:28,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 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 08:11:28,857 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 554 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:28,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 597 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:11:28,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2023-12-16 08:11:29,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 6658. [2023-12-16 08:11:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6658 states, 5743 states have (on average 1.2056416507052063) internal successors, (6924), 5806 states have internal predecessors, (6924), 436 states have call successors, (436), 356 states have call predecessors, (436), 477 states have return successors, (563), 496 states have call predecessors, (563), 435 states have call successors, (563) [2023-12-16 08:11:29,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6658 states to 6658 states and 7923 transitions. [2023-12-16 08:11:29,446 INFO L78 Accepts]: Start accepts. Automaton has 6658 states and 7923 transitions. Word has length 162 [2023-12-16 08:11:29,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:29,447 INFO L495 AbstractCegarLoop]: Abstraction has 6658 states and 7923 transitions. [2023-12-16 08:11:29,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 08:11:29,447 INFO L276 IsEmpty]: Start isEmpty. Operand 6658 states and 7923 transitions. [2023-12-16 08:11:29,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 08:11:29,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:29,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:29,455 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 (41)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:29,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /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 08:11:29,653 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:29,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:29,653 INFO L85 PathProgramCache]: Analyzing trace with hash 585397255, now seen corresponding path program 1 times [2023-12-16 08:11:29,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:29,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375789311] [2023-12-16 08:11:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:29,654 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 08:11:29,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:29,655 INFO L229 MonitoredProcess]: Starting monitored process 42 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 08:11:29,684 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 (42)] Waiting until timeout for monitored process [2023-12-16 08:11:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:29,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:11:29,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:29,927 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 08:11:29,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:29,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:29,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375789311] [2023-12-16 08:11:29,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375789311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:29,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:29,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:29,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897817974] [2023-12-16 08:11:29,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:29,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:29,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:29,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:29,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:29,928 INFO L87 Difference]: Start difference. First operand 6658 states and 7923 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 08:11:31,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:31,006 INFO L93 Difference]: Finished difference Result 14497 states and 17397 transitions. [2023-12-16 08:11:31,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:11:31,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 163 [2023-12-16 08:11:31,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:31,024 INFO L225 Difference]: With dead ends: 14497 [2023-12-16 08:11:31,024 INFO L226 Difference]: Without dead ends: 10513 [2023-12-16 08:11:31,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 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 08:11:31,029 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 506 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:31,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 826 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:11:31,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10513 states. [2023-12-16 08:11:31,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10513 to 10511. [2023-12-16 08:11:31,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10511 states, 9289 states have (on average 1.2050812789320702) internal successors, (11194), 9365 states have internal predecessors, (11194), 595 states have call successors, (595), 492 states have call predecessors, (595), 625 states have return successors, (758), 655 states have call predecessors, (758), 594 states have call successors, (758) [2023-12-16 08:11:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10511 states to 10511 states and 12547 transitions. [2023-12-16 08:11:31,904 INFO L78 Accepts]: Start accepts. Automaton has 10511 states and 12547 transitions. Word has length 163 [2023-12-16 08:11:31,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:31,904 INFO L495 AbstractCegarLoop]: Abstraction has 10511 states and 12547 transitions. [2023-12-16 08:11:31,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 08:11:31,904 INFO L276 IsEmpty]: Start isEmpty. Operand 10511 states and 12547 transitions. [2023-12-16 08:11:31,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 08:11:31,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:31,908 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:31,914 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 (42)] Ended with exit code 0 [2023-12-16 08:11:32,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /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 08:11:32,113 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:32,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:32,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1566352069, now seen corresponding path program 1 times [2023-12-16 08:11:32,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:32,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529546960] [2023-12-16 08:11:32,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:32,114 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 08:11:32,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:32,115 INFO L229 MonitoredProcess]: Starting monitored process 43 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 08:11:32,119 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 (43)] Waiting until timeout for monitored process [2023-12-16 08:11:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:32,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:32,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:32,251 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 08:11:32,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:32,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:32,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529546960] [2023-12-16 08:11:32,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529546960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:32,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:32,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:32,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102667327] [2023-12-16 08:11:32,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:32,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:32,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:32,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:32,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:32,252 INFO L87 Difference]: Start difference. First operand 10511 states and 12547 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:11:32,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:32,918 INFO L93 Difference]: Finished difference Result 16485 states and 19730 transitions. [2023-12-16 08:11:32,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:32,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 163 [2023-12-16 08:11:32,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:32,932 INFO L225 Difference]: With dead ends: 16485 [2023-12-16 08:11:32,932 INFO L226 Difference]: Without dead ends: 8648 [2023-12-16 08:11:32,939 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 08:11:32,942 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 283 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:32,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 483 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:11:32,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8648 states. [2023-12-16 08:11:33,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8648 to 8648. [2023-12-16 08:11:33,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8648 states, 7577 states have (on average 1.2035106242576217) internal successors, (9119), 7648 states have internal predecessors, (9119), 514 states have call successors, (514), 424 states have call predecessors, (514), 555 states have return successors, (663), 576 states have call predecessors, (663), 513 states have call successors, (663) [2023-12-16 08:11:33,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8648 states to 8648 states and 10296 transitions. [2023-12-16 08:11:33,628 INFO L78 Accepts]: Start accepts. Automaton has 8648 states and 10296 transitions. Word has length 163 [2023-12-16 08:11:33,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:33,628 INFO L495 AbstractCegarLoop]: Abstraction has 8648 states and 10296 transitions. [2023-12-16 08:11:33,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:11:33,628 INFO L276 IsEmpty]: Start isEmpty. Operand 8648 states and 10296 transitions. [2023-12-16 08:11:33,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-16 08:11:33,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:33,632 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:33,637 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 (43)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:33,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /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 08:11:33,841 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:33,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:33,841 INFO L85 PathProgramCache]: Analyzing trace with hash 270609548, now seen corresponding path program 1 times [2023-12-16 08:11:33,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:33,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88703746] [2023-12-16 08:11:33,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:33,842 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 08:11:33,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:33,844 INFO L229 MonitoredProcess]: Starting monitored process 44 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 08:11:33,846 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 (44)] Waiting until timeout for monitored process [2023-12-16 08:11:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:33,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:11:33,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 08:11:34,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:34,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:34,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88703746] [2023-12-16 08:11:34,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88703746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:34,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:34,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:11:34,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880388298] [2023-12-16 08:11:34,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:34,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:11:34,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:34,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:11:34,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:11:34,120 INFO L87 Difference]: Start difference. First operand 8648 states and 10296 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 08:11:35,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:35,317 INFO L93 Difference]: Finished difference Result 20038 states and 23992 transitions. [2023-12-16 08:11:35,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:11:35,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 165 [2023-12-16 08:11:35,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:35,342 INFO L225 Difference]: With dead ends: 20038 [2023-12-16 08:11:35,342 INFO L226 Difference]: Without dead ends: 14064 [2023-12-16 08:11:35,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 163 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 08:11:35,347 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 497 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:35,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 804 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:11:35,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14064 states. [2023-12-16 08:11:36,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14064 to 14062. [2023-12-16 08:11:36,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14062 states, 12560 states have (on average 1.203423566878981) internal successors, (15115), 12652 states have internal predecessors, (15115), 735 states have call successors, (735), 612 states have call predecessors, (735), 765 states have return successors, (930), 799 states have call predecessors, (930), 734 states have call successors, (930) [2023-12-16 08:11:36,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14062 states to 14062 states and 16780 transitions. [2023-12-16 08:11:36,284 INFO L78 Accepts]: Start accepts. Automaton has 14062 states and 16780 transitions. Word has length 165 [2023-12-16 08:11:36,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:11:36,284 INFO L495 AbstractCegarLoop]: Abstraction has 14062 states and 16780 transitions. [2023-12-16 08:11:36,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 4 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 08:11:36,285 INFO L276 IsEmpty]: Start isEmpty. Operand 14062 states and 16780 transitions. [2023-12-16 08:11:36,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-16 08:11:36,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:11:36,290 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:36,297 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 (44)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:36,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /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 08:11:36,495 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:11:36,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:11:36,496 INFO L85 PathProgramCache]: Analyzing trace with hash 615437710, now seen corresponding path program 1 times [2023-12-16 08:11:36,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:11:36,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045698502] [2023-12-16 08:11:36,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:11:36,496 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 08:11:36,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:11:36,498 INFO L229 MonitoredProcess]: Starting monitored process 45 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 08:11:36,500 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 (45)] Waiting until timeout for monitored process [2023-12-16 08:11:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:11:36,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:11:36,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:11:36,620 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 08:11:36,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:11:36,620 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:11:36,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045698502] [2023-12-16 08:11:36,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045698502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:11:36,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:11:36,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:11:36,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477918284] [2023-12-16 08:11:36,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:11:36,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:11:36,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:11:36,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:11:36,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:11:36,623 INFO L87 Difference]: Start difference. First operand 14062 states and 16780 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:11:37,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:11:37,592 INFO L93 Difference]: Finished difference Result 25442 states and 30433 transitions. [2023-12-16 08:11:37,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:11:37,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 165 [2023-12-16 08:11:37,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:11:37,614 INFO L225 Difference]: With dead ends: 25442 [2023-12-16 08:11:37,615 INFO L226 Difference]: Without dead ends: 14054 [2023-12-16 08:11:37,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 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 08:11:37,640 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 281 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:11:37,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 482 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:11:37,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14054 states. Received shutdown request... [2023-12-16 08:11:38,526 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:11:38,526 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 08:11:38,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14054 to 14054. [2023-12-16 08:11:38,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14054 states, 12555 states have (on average 1.2031859816806054) internal successors, (15106), 12646 states have internal predecessors, (15106), 732 states have call successors, (732), 612 states have call predecessors, (732), 765 states have return successors, (927), 796 states have call predecessors, (927), 731 states have call successors, (927) [2023-12-16 08:11:38,616 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 08:11:38,621 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 (45)] Forceful destruction successful, exit code 0 [2023-12-16 08:11:38,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /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 08:11:38,822 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 08:11:38,824 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 08:11:38,850 INFO L445 BasicCegarLoop]: Path program histogram: [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] [2023-12-16 08:11:38,853 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:11:38,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:11:38 BoogieIcfgContainer [2023-12-16 08:11:38,857 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:11:38,857 INFO L158 Benchmark]: Toolchain (without parser) took 69959.81ms. Allocated memory was 364.9MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 321.4MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 08:11:38,857 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:11:38,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.91ms. Allocated memory is still 364.9MB. Free memory was 321.4MB in the beginning and 298.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 08:11:38,857 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.94ms. Allocated memory is still 364.9MB. Free memory was 298.3MB in the beginning and 294.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 08:11:38,857 INFO L158 Benchmark]: Boogie Preprocessor took 46.12ms. Allocated memory is still 364.9MB. Free memory was 294.8MB in the beginning and 289.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 08:11:38,857 INFO L158 Benchmark]: RCFGBuilder took 999.12ms. Allocated memory is still 364.9MB. Free memory was 289.9MB in the beginning and 293.7MB in the end (delta: -3.8MB). Peak memory consumption was 24.5MB. Max. memory is 8.0GB. [2023-12-16 08:11:38,858 INFO L158 Benchmark]: TraceAbstraction took 68523.62ms. Allocated memory was 364.9MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 292.7MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 08:11:38,866 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 134.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 339.91ms. Allocated memory is still 364.9MB. Free memory was 321.4MB in the beginning and 298.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.94ms. Allocated memory is still 364.9MB. Free memory was 298.3MB in the beginning and 294.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.12ms. Allocated memory is still 364.9MB. Free memory was 294.8MB in the beginning and 289.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 999.12ms. Allocated memory is still 364.9MB. Free memory was 289.9MB in the beginning and 293.7MB in the end (delta: -3.8MB). Peak memory consumption was 24.5MB. Max. memory is 8.0GB. * TraceAbstraction took 68523.62ms. Allocated memory was 364.9MB in the beginning and 2.3GB in the end (delta: 1.9GB). Free memory was 292.7MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 496]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 496). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 28]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 28). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 301 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 68.5s, OverallIterations: 44, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17204 SdHoareTripleChecker+Valid, 9.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16747 mSDsluCounter, 36639 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21747 mSDsCounter, 1310 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13179 IncrementalHoareTripleChecker+Invalid, 14489 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1310 mSolverCounterUnsat, 14892 mSDtfsCounter, 13179 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4530 GetRequests, 4398 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14062occurred in iteration=43, InterpolantAutomatonStates: 195, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 21.7s AutomataMinimizationTime, 44 MinimizatonAttempts, 4014 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 4472 NumberOfCodeBlocks, 4472 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 4495 ConstructedInterpolants, 0 QuantifiedInterpolants, 7577 SizeOfPredicates, 13 NumberOfNonLiveVariables, 11659 ConjunctsInSsa, 173 ConjunctsInUnsatCore, 45 InterpolantComputations, 43 PerfectInterpolantSequences, 679/683 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown