/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_3.cil+token_ring.03.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:12:27,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:12:27,508 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 08:12:27,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:12:27,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:12:27,525 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:12:27,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:12:27,526 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:12:27,526 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:12:27,526 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:12:27,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:12:27,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:12:27,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:12:27,527 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:12:27,528 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:12:27,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:12:27,528 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:12:27,528 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:12:27,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:12:27,529 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:12:27,529 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:12:27,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:12:27,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:12:27,530 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:12:27,530 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:12:27,530 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:12:27,530 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:12:27,530 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:12:27,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:12:27,531 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:12:27,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:12:27,531 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:12:27,531 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:12:27,531 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:12:27,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:12:27,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:12:27,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:12:27,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:12:27,532 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:12:27,532 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:12:27,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:12:27,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:12:27,533 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:12:27,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:12:27,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:12:27,533 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:12:27,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:12:27,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:12:27,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:12:27,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:12:27,716 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:12:27,716 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:12:27,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.03.cil-2.c [2023-12-16 08:12:28,802 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:12:28,996 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:12:28,996 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_3.cil+token_ring.03.cil-2.c [2023-12-16 08:12:29,016 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b991568b/09a75cf3bce94d2b86da0871bf39fa6e/FLAG7417353e2 [2023-12-16 08:12:29,030 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b991568b/09a75cf3bce94d2b86da0871bf39fa6e [2023-12-16 08:12:29,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:12:29,035 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:12:29,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:12:29,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:12:29,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:12:29,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139e7137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29, skipping insertion in model container [2023-12-16 08:12:29,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,095 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:12:29,213 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_3.cil+token_ring.03.cil-2.c[911,924] [2023-12-16 08:12:29,278 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_3.cil+token_ring.03.cil-2.c[8416,8429] [2023-12-16 08:12:29,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:12:29,342 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:12:29,351 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_3.cil+token_ring.03.cil-2.c[911,924] [2023-12-16 08:12:29,377 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_3.cil+token_ring.03.cil-2.c[8416,8429] [2023-12-16 08:12:29,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:12:29,421 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:12:29,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29 WrapperNode [2023-12-16 08:12:29,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:12:29,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:12:29,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:12:29,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:12:29,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,454 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,487 INFO L138 Inliner]: procedures = 62, calls = 70, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 544 [2023-12-16 08:12:29,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:12:29,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:12:29,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:12:29,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:12:29,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,519 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,539 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 08:12:29,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,540 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:12:29,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:12:29,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:12:29,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:12:29,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (1/1) ... [2023-12-16 08:12:29,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:12:29,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:12:29,634 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 08:12:29,701 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 08:12:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:12:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 08:12:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 08:12:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-12-16 08:12:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-12-16 08:12:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 08:12:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 08:12:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 08:12:29,720 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 08:12:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2023-12-16 08:12:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2023-12-16 08:12:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 08:12:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 08:12:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 08:12:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 08:12:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2023-12-16 08:12:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2023-12-16 08:12:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:12:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-12-16 08:12:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-12-16 08:12:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2023-12-16 08:12:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2023-12-16 08:12:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 08:12:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 08:12:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 08:12:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 08:12:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2023-12-16 08:12:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2023-12-16 08:12:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:12:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:12:29,722 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 08:12:29,722 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 08:12:29,797 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:12:29,799 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:12:30,254 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1bv32 == ~q_free~0); [2023-12-16 08:12:30,254 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1bv32 == ~q_free~0;~c_dr_st~0 := 2bv32;~c_dr_pc~0 := 2bv32;~a_t~0 := do_read_c_~a~0#1; [2023-12-16 08:12:30,299 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:12:30,335 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:12:30,335 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-12-16 08:12:30,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:12:30 BoogieIcfgContainer [2023-12-16 08:12:30,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:12:30,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:12:30,337 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:12:30,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:12:30,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:12:29" (1/3) ... [2023-12-16 08:12:30,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c94612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:12:30, skipping insertion in model container [2023-12-16 08:12:30,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:12:29" (2/3) ... [2023-12-16 08:12:30,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c94612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:12:30, skipping insertion in model container [2023-12-16 08:12:30,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:12:30" (3/3) ... [2023-12-16 08:12:30,341 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.03.cil-2.c [2023-12-16 08:12:30,352 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:12:30,352 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 08:12:30,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:12:30,389 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;@5a6239a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:12:30,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 08:12:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 195 states have (on average 1.6564102564102565) internal successors, (323), 201 states have internal predecessors, (323), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 08:12:30,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:12:30,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:30,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:30,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:30,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:30,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1120505272, now seen corresponding path program 1 times [2023-12-16 08:12:30,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:30,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287697488] [2023-12-16 08:12:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:30,416 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 08:12:30,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:30,438 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 08:12:30,455 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 08:12:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:30,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 08:12:30,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:30,651 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 08:12:30,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:30,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:30,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287697488] [2023-12-16 08:12:30,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287697488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:30,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:30,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:12:30,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25448028] [2023-12-16 08:12:30,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:30,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:30,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:30,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:30,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:30,676 INFO L87 Difference]: Start difference. First operand has 245 states, 195 states have (on average 1.6564102564102565) internal successors, (323), 201 states have internal predecessors, (323), 33 states have call successors, (33), 14 states have call predecessors, (33), 14 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:12:31,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:31,228 INFO L93 Difference]: Finished difference Result 582 states and 927 transitions. [2023-12-16 08:12:31,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:12:31,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-16 08:12:31,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:31,239 INFO L225 Difference]: With dead ends: 582 [2023-12-16 08:12:31,239 INFO L226 Difference]: Without dead ends: 348 [2023-12-16 08:12:31,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 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 08:12:31,245 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 315 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:31,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 720 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:12:31,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-16 08:12:31,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 341. [2023-12-16 08:12:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 271 states have (on average 1.5202952029520296) internal successors, (412), 277 states have internal predecessors, (412), 46 states have call successors, (46), 21 states have call predecessors, (46), 22 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2023-12-16 08:12:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 507 transitions. [2023-12-16 08:12:31,291 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 507 transitions. Word has length 57 [2023-12-16 08:12:31,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:31,291 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 507 transitions. [2023-12-16 08:12:31,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:12:31,292 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 507 transitions. [2023-12-16 08:12:31,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:12:31,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:31,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:31,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:31,498 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 08:12:31,498 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:31,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:31,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1230469256, now seen corresponding path program 1 times [2023-12-16 08:12:31,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:31,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100967903] [2023-12-16 08:12:31,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:31,500 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 08:12:31,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:31,502 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 08:12:31,505 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 08:12:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:31,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:12:31,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:31,667 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 08:12:31,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:31,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:31,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100967903] [2023-12-16 08:12:31,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100967903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:31,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:31,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 08:12:31,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48204365] [2023-12-16 08:12:31,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:31,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:31,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:31,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:31,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:31,670 INFO L87 Difference]: Start difference. First operand 341 states and 507 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:12:32,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:32,136 INFO L93 Difference]: Finished difference Result 752 states and 1122 transitions. [2023-12-16 08:12:32,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:12:32,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-16 08:12:32,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:32,140 INFO L225 Difference]: With dead ends: 752 [2023-12-16 08:12:32,140 INFO L226 Difference]: Without dead ends: 562 [2023-12-16 08:12:32,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 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 08:12:32,142 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 304 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:32,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 716 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:12:32,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-12-16 08:12:32,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 554. [2023-12-16 08:12:32,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 436 states have (on average 1.4862385321100917) internal successors, (648), 450 states have internal predecessors, (648), 72 states have call successors, (72), 35 states have call predecessors, (72), 44 states have return successors, (95), 73 states have call predecessors, (95), 70 states have call successors, (95) [2023-12-16 08:12:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 815 transitions. [2023-12-16 08:12:32,222 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 815 transitions. Word has length 57 [2023-12-16 08:12:32,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:32,222 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 815 transitions. [2023-12-16 08:12:32,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:12:32,222 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 815 transitions. [2023-12-16 08:12:32,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 08:12:32,225 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:32,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:32,239 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 08:12:32,429 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 08:12:32,429 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:32,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:32,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1306307144, now seen corresponding path program 1 times [2023-12-16 08:12:32,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:32,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357190600] [2023-12-16 08:12:32,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:32,431 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 08:12:32,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:32,432 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 08:12:32,466 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 08:12:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:32,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:32,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:32,534 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 08:12:32,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:32,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:32,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357190600] [2023-12-16 08:12:32,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357190600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:32,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:32,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:32,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976703189] [2023-12-16 08:12:32,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:32,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:32,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:32,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:32,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:32,536 INFO L87 Difference]: Start difference. First operand 554 states and 815 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:12:32,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:32,639 INFO L93 Difference]: Finished difference Result 1300 states and 1882 transitions. [2023-12-16 08:12:32,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:32,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-12-16 08:12:32,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:32,643 INFO L225 Difference]: With dead ends: 1300 [2023-12-16 08:12:32,643 INFO L226 Difference]: Without dead ends: 911 [2023-12-16 08:12:32,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:32,645 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 325 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:32,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 469 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:32,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2023-12-16 08:12:32,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 903. [2023-12-16 08:12:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 707 states have (on average 1.454031117397454) internal successors, (1028), 731 states have internal predecessors, (1028), 112 states have call successors, (112), 63 states have call predecessors, (112), 82 states have return successors, (152), 113 states have call predecessors, (152), 110 states have call successors, (152) [2023-12-16 08:12:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1292 transitions. [2023-12-16 08:12:32,681 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1292 transitions. Word has length 57 [2023-12-16 08:12:32,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:32,682 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1292 transitions. [2023-12-16 08:12:32,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:12:32,682 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1292 transitions. [2023-12-16 08:12:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:12:32,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:32,683 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 08:12:32,689 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 08:12:32,886 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 08:12:32,887 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:32,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:32,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1267345871, now seen corresponding path program 1 times [2023-12-16 08:12:32,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:32,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886207087] [2023-12-16 08:12:32,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:32,888 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 08:12:32,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:32,895 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 08:12:32,923 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 08:12:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:32,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:12:32,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:32,983 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 08:12:32,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:32,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:32,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886207087] [2023-12-16 08:12:32,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886207087] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:32,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:32,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:12:32,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461988091] [2023-12-16 08:12:32,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:32,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:12:32,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:32,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:12:32,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:32,985 INFO L87 Difference]: Start difference. First operand 903 states and 1292 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 08:12:33,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:33,100 INFO L93 Difference]: Finished difference Result 1677 states and 2396 transitions. [2023-12-16 08:12:33,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:12:33,100 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 08:12:33,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:33,103 INFO L225 Difference]: With dead ends: 1677 [2023-12-16 08:12:33,103 INFO L226 Difference]: Without dead ends: 939 [2023-12-16 08:12:33,105 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 08:12:33,105 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 6 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:33,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1654 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:33,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2023-12-16 08:12:33,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 919. [2023-12-16 08:12:33,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 719 states have (on average 1.4408901251738526) internal successors, (1036), 743 states have internal predecessors, (1036), 112 states have call successors, (112), 63 states have call predecessors, (112), 86 states have return successors, (156), 117 states have call predecessors, (156), 110 states have call successors, (156) [2023-12-16 08:12:33,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1304 transitions. [2023-12-16 08:12:33,139 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1304 transitions. Word has length 58 [2023-12-16 08:12:33,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:33,139 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1304 transitions. [2023-12-16 08:12:33,139 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 08:12:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1304 transitions. [2023-12-16 08:12:33,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 08:12:33,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:33,140 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 08:12:33,146 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 08:12:33,343 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 08:12:33,343 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:33,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:33,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1194959313, now seen corresponding path program 1 times [2023-12-16 08:12:33,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:33,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039809639] [2023-12-16 08:12:33,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:33,344 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 08:12:33,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:33,345 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 08:12:33,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 08:12:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:33,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:33,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:33,456 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 08:12:33,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:33,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:33,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039809639] [2023-12-16 08:12:33,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039809639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:33,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:33,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:33,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399743160] [2023-12-16 08:12:33,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:33,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:33,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:33,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:33,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:33,458 INFO L87 Difference]: Start difference. First operand 919 states and 1304 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:12:33,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:33,633 INFO L93 Difference]: Finished difference Result 2371 states and 3320 transitions. [2023-12-16 08:12:33,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:33,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-12-16 08:12:33,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:33,639 INFO L225 Difference]: With dead ends: 2371 [2023-12-16 08:12:33,639 INFO L226 Difference]: Without dead ends: 1617 [2023-12-16 08:12:33,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 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 08:12:33,641 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 314 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:33,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 445 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:33,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2023-12-16 08:12:33,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1609. [2023-12-16 08:12:33,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1249 states have (on average 1.4011208967173738) internal successors, (1750), 1293 states have internal predecessors, (1750), 192 states have call successors, (192), 119 states have call predecessors, (192), 166 states have return successors, (274), 201 states have call predecessors, (274), 190 states have call successors, (274) [2023-12-16 08:12:33,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2216 transitions. [2023-12-16 08:12:33,715 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2216 transitions. Word has length 58 [2023-12-16 08:12:33,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:33,715 INFO L495 AbstractCegarLoop]: Abstraction has 1609 states and 2216 transitions. [2023-12-16 08:12:33,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 08:12:33,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2216 transitions. [2023-12-16 08:12:33,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 08:12:33,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:33,718 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:33,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 08:12:33,921 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 08:12:33,922 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:33,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:33,922 INFO L85 PathProgramCache]: Analyzing trace with hash 388540293, now seen corresponding path program 1 times [2023-12-16 08:12:33,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:33,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075859824] [2023-12-16 08:12:33,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:33,923 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 08:12:33,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:33,924 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 08:12:33,951 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 08:12:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:33,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:12:33,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:34,026 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 08:12:34,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:34,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:34,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075859824] [2023-12-16 08:12:34,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075859824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:34,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:34,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:12:34,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821925694] [2023-12-16 08:12:34,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:34,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:12:34,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:34,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:12:34,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:12:34,028 INFO L87 Difference]: Start difference. First operand 1609 states and 2216 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 08:12:34,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:34,179 INFO L93 Difference]: Finished difference Result 3101 states and 4272 transitions. [2023-12-16 08:12:34,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:12:34,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 73 [2023-12-16 08:12:34,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:34,186 INFO L225 Difference]: With dead ends: 3101 [2023-12-16 08:12:34,186 INFO L226 Difference]: Without dead ends: 1657 [2023-12-16 08:12:34,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 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 08:12:34,221 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 3 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:34,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1649 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:34,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2023-12-16 08:12:34,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1641. [2023-12-16 08:12:34,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1273 states have (on average 1.387274155538099) internal successors, (1766), 1317 states have internal predecessors, (1766), 192 states have call successors, (192), 119 states have call predecessors, (192), 174 states have return successors, (282), 209 states have call predecessors, (282), 190 states have call successors, (282) [2023-12-16 08:12:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2240 transitions. [2023-12-16 08:12:34,303 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2240 transitions. Word has length 73 [2023-12-16 08:12:34,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:34,303 INFO L495 AbstractCegarLoop]: Abstraction has 1641 states and 2240 transitions. [2023-12-16 08:12:34,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 08:12:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2240 transitions. [2023-12-16 08:12:34,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 08:12:34,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:34,305 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:12:34,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:34,509 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 08:12:34,510 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:34,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:34,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1456826873, now seen corresponding path program 1 times [2023-12-16 08:12:34,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:34,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612124869] [2023-12-16 08:12:34,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:34,511 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 08:12:34,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:34,512 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 08:12:34,539 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 08:12:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:34,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:34,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:34,638 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 08:12:34,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:34,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:34,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612124869] [2023-12-16 08:12:34,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612124869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:34,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:34,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:34,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45372062] [2023-12-16 08:12:34,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:34,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:34,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:34,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:34,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:34,640 INFO L87 Difference]: Start difference. First operand 1641 states and 2240 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 08:12:35,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:35,059 INFO L93 Difference]: Finished difference Result 4557 states and 6223 transitions. [2023-12-16 08:12:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:35,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 73 [2023-12-16 08:12:35,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:35,071 INFO L225 Difference]: With dead ends: 4557 [2023-12-16 08:12:35,072 INFO L226 Difference]: Without dead ends: 3085 [2023-12-16 08:12:35,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 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 08:12:35,076 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 466 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:35,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 389 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:35,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2023-12-16 08:12:35,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 3081. [2023-12-16 08:12:35,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3081 states, 2357 states have (on average 1.3500212134068732) internal successors, (3182), 2449 states have internal predecessors, (3182), 372 states have call successors, (372), 231 states have call predecessors, (372), 350 states have return successors, (619), 409 states have call predecessors, (619), 370 states have call successors, (619) [2023-12-16 08:12:35,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3081 states to 3081 states and 4173 transitions. [2023-12-16 08:12:35,256 INFO L78 Accepts]: Start accepts. Automaton has 3081 states and 4173 transitions. Word has length 73 [2023-12-16 08:12:35,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:35,257 INFO L495 AbstractCegarLoop]: Abstraction has 3081 states and 4173 transitions. [2023-12-16 08:12:35,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 08:12:35,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3081 states and 4173 transitions. [2023-12-16 08:12:35,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 08:12:35,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:35,260 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] [2023-12-16 08:12:35,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:35,464 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 08:12:35,464 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:35,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:35,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1674718997, now seen corresponding path program 1 times [2023-12-16 08:12:35,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:35,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286256068] [2023-12-16 08:12:35,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:35,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:12:35,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:35,466 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 08:12:35,469 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 08:12:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:35,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:35,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:35,543 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 08:12:35,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:35,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:35,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286256068] [2023-12-16 08:12:35,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286256068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:35,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:35,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:35,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860364055] [2023-12-16 08:12:35,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:35,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:35,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:35,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:35,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:35,545 INFO L87 Difference]: Start difference. First operand 3081 states and 4173 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 08:12:35,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:35,808 INFO L93 Difference]: Finished difference Result 8749 states and 11802 transitions. [2023-12-16 08:12:35,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:35,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 75 [2023-12-16 08:12:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:35,828 INFO L225 Difference]: With dead ends: 8749 [2023-12-16 08:12:35,828 INFO L226 Difference]: Without dead ends: 4505 [2023-12-16 08:12:35,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 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 08:12:35,838 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 110 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:35,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 761 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:35,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4505 states. [2023-12-16 08:12:36,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4505 to 4505. [2023-12-16 08:12:36,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4505 states, 3437 states have (on average 1.3366307826592958) internal successors, (4594), 3569 states have internal predecessors, (4594), 536 states have call successors, (536), 343 states have call predecessors, (536), 530 states have return successors, (951), 601 states have call predecessors, (951), 534 states have call successors, (951) [2023-12-16 08:12:36,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4505 states to 4505 states and 6081 transitions. [2023-12-16 08:12:36,044 INFO L78 Accepts]: Start accepts. Automaton has 4505 states and 6081 transitions. Word has length 75 [2023-12-16 08:12:36,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:36,044 INFO L495 AbstractCegarLoop]: Abstraction has 4505 states and 6081 transitions. [2023-12-16 08:12:36,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 08:12:36,044 INFO L276 IsEmpty]: Start isEmpty. Operand 4505 states and 6081 transitions. [2023-12-16 08:12:36,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:36,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:36,048 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] [2023-12-16 08:12:36,067 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 08:12:36,252 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 08:12:36,252 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:36,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:36,253 INFO L85 PathProgramCache]: Analyzing trace with hash -125065604, now seen corresponding path program 1 times [2023-12-16 08:12:36,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:36,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753486062] [2023-12-16 08:12:36,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:36,253 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 08:12:36,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:36,254 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 08:12:36,256 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 08:12:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:36,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:36,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:36,346 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 08:12:36,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:36,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:36,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753486062] [2023-12-16 08:12:36,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753486062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:36,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:36,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:36,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873539976] [2023-12-16 08:12:36,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:36,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:36,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:36,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:36,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:36,348 INFO L87 Difference]: Start difference. First operand 4505 states and 6081 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 08:12:36,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:36,515 INFO L93 Difference]: Finished difference Result 4638 states and 6284 transitions. [2023-12-16 08:12:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:36,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:36,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:36,532 INFO L225 Difference]: With dead ends: 4638 [2023-12-16 08:12:36,533 INFO L226 Difference]: Without dead ends: 4505 [2023-12-16 08:12:36,534 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 08:12:36,536 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 205 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:36,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 465 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:36,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4505 states. [2023-12-16 08:12:36,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4505 to 4505. [2023-12-16 08:12:36,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4505 states, 3437 states have (on average 1.3363398312481816) internal successors, (4593), 3569 states have internal predecessors, (4593), 536 states have call successors, (536), 343 states have call predecessors, (536), 530 states have return successors, (951), 601 states have call predecessors, (951), 534 states have call successors, (951) [2023-12-16 08:12:36,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4505 states to 4505 states and 6080 transitions. [2023-12-16 08:12:36,745 INFO L78 Accepts]: Start accepts. Automaton has 4505 states and 6080 transitions. Word has length 71 [2023-12-16 08:12:36,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:36,745 INFO L495 AbstractCegarLoop]: Abstraction has 4505 states and 6080 transitions. [2023-12-16 08:12:36,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 08:12:36,745 INFO L276 IsEmpty]: Start isEmpty. Operand 4505 states and 6080 transitions. [2023-12-16 08:12:36,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:36,748 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:36,748 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] [2023-12-16 08:12:36,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:36,952 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 08:12:36,952 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:36,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:36,953 INFO L85 PathProgramCache]: Analyzing trace with hash 292331002, now seen corresponding path program 1 times [2023-12-16 08:12:36,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:36,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762608380] [2023-12-16 08:12:36,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:36,953 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 08:12:36,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:36,970 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 08:12:36,972 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 08:12:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:37,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:37,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:37,106 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 08:12:37,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:37,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:37,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762608380] [2023-12-16 08:12:37,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762608380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:37,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:37,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:37,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017819797] [2023-12-16 08:12:37,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:37,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:37,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:37,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:37,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:37,109 INFO L87 Difference]: Start difference. First operand 4505 states and 6080 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 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 08:12:37,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:37,671 INFO L93 Difference]: Finished difference Result 4778 states and 6503 transitions. [2023-12-16 08:12:37,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:12:37,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:37,687 INFO L225 Difference]: With dead ends: 4778 [2023-12-16 08:12:37,687 INFO L226 Difference]: Without dead ends: 4648 [2023-12-16 08:12:37,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 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 08:12:37,690 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 548 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:37,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 695 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:12:37,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4648 states. [2023-12-16 08:12:37,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4648 to 4637. [2023-12-16 08:12:37,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 3550 states have (on average 1.343661971830986) internal successors, (4770), 3683 states have internal predecessors, (4770), 548 states have call successors, (548), 349 states have call predecessors, (548), 537 states have return successors, (964), 613 states have call predecessors, (964), 546 states have call successors, (964) [2023-12-16 08:12:37,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 6282 transitions. [2023-12-16 08:12:37,944 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 6282 transitions. Word has length 71 [2023-12-16 08:12:37,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:37,944 INFO L495 AbstractCegarLoop]: Abstraction has 4637 states and 6282 transitions. [2023-12-16 08:12:37,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 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 08:12:37,945 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 6282 transitions. [2023-12-16 08:12:37,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:37,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:37,949 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] [2023-12-16 08:12:37,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:38,153 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 08:12:38,153 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:38,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:38,154 INFO L85 PathProgramCache]: Analyzing trace with hash 993579390, now seen corresponding path program 1 times [2023-12-16 08:12:38,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:38,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772523224] [2023-12-16 08:12:38,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:38,154 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 08:12:38,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:38,178 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 08:12:38,220 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 08:12:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:38,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:38,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:38,301 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 08:12:38,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:38,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:38,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772523224] [2023-12-16 08:12:38,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772523224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:38,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:38,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:38,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766485147] [2023-12-16 08:12:38,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:38,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:38,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:38,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:38,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:38,303 INFO L87 Difference]: Start difference. First operand 4637 states and 6282 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:38,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:38,756 INFO L93 Difference]: Finished difference Result 4899 states and 6689 transitions. [2023-12-16 08:12:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:38,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:38,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:38,780 INFO L225 Difference]: With dead ends: 4899 [2023-12-16 08:12:38,780 INFO L226 Difference]: Without dead ends: 4637 [2023-12-16 08:12:38,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 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 08:12:38,782 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 446 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:38,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 498 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:38,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2023-12-16 08:12:38,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4637. [2023-12-16 08:12:38,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 3550 states have (on average 1.3416901408450703) internal successors, (4763), 3683 states have internal predecessors, (4763), 548 states have call successors, (548), 349 states have call predecessors, (548), 537 states have return successors, (964), 613 states have call predecessors, (964), 546 states have call successors, (964) [2023-12-16 08:12:39,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 6275 transitions. [2023-12-16 08:12:39,010 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 6275 transitions. Word has length 71 [2023-12-16 08:12:39,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:39,010 INFO L495 AbstractCegarLoop]: Abstraction has 4637 states and 6275 transitions. [2023-12-16 08:12:39,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:39,011 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 6275 transitions. [2023-12-16 08:12:39,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:39,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:39,013 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] [2023-12-16 08:12:39,024 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 (12)] Ended with exit code 0 [2023-12-16 08:12:39,217 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 08:12:39,217 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:39,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:39,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1293294970, now seen corresponding path program 1 times [2023-12-16 08:12:39,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:39,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172701782] [2023-12-16 08:12:39,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:39,218 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 08:12:39,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:39,220 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 08:12:39,221 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 08:12:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:39,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:39,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:39,376 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 08:12:39,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:39,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:39,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172701782] [2023-12-16 08:12:39,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172701782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:39,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:39,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:39,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443047683] [2023-12-16 08:12:39,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:39,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:39,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:39,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:39,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:39,378 INFO L87 Difference]: Start difference. First operand 4637 states and 6275 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:39,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:39,861 INFO L93 Difference]: Finished difference Result 4899 states and 6675 transitions. [2023-12-16 08:12:39,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:39,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:39,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:39,873 INFO L225 Difference]: With dead ends: 4899 [2023-12-16 08:12:39,873 INFO L226 Difference]: Without dead ends: 4637 [2023-12-16 08:12:39,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 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 08:12:39,875 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 440 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:39,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 491 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:39,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2023-12-16 08:12:40,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4637. [2023-12-16 08:12:40,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 3550 states have (on average 1.339718309859155) internal successors, (4756), 3683 states have internal predecessors, (4756), 548 states have call successors, (548), 349 states have call predecessors, (548), 537 states have return successors, (964), 613 states have call predecessors, (964), 546 states have call successors, (964) [2023-12-16 08:12:40,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 6268 transitions. [2023-12-16 08:12:40,096 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 6268 transitions. Word has length 71 [2023-12-16 08:12:40,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:40,097 INFO L495 AbstractCegarLoop]: Abstraction has 4637 states and 6268 transitions. [2023-12-16 08:12:40,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:40,097 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 6268 transitions. [2023-12-16 08:12:40,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:40,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:40,100 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] [2023-12-16 08:12:40,104 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 08:12:40,304 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 08:12:40,304 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:40,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:40,305 INFO L85 PathProgramCache]: Analyzing trace with hash 748773886, now seen corresponding path program 1 times [2023-12-16 08:12:40,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:40,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558308613] [2023-12-16 08:12:40,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:40,306 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 08:12:40,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:40,307 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 08:12:40,330 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 08:12:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:40,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:40,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:40,414 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 08:12:40,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:40,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:40,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558308613] [2023-12-16 08:12:40,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1558308613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:40,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:40,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:40,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434294101] [2023-12-16 08:12:40,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:40,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:40,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:40,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:40,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:40,429 INFO L87 Difference]: Start difference. First operand 4637 states and 6268 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:40,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:40,931 INFO L93 Difference]: Finished difference Result 4899 states and 6661 transitions. [2023-12-16 08:12:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:40,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:40,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:40,944 INFO L225 Difference]: With dead ends: 4899 [2023-12-16 08:12:40,944 INFO L226 Difference]: Without dead ends: 4637 [2023-12-16 08:12:40,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 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 08:12:40,946 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 434 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:40,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 484 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:40,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2023-12-16 08:12:41,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4637. [2023-12-16 08:12:41,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 3550 states have (on average 1.3377464788732394) internal successors, (4749), 3683 states have internal predecessors, (4749), 548 states have call successors, (548), 349 states have call predecessors, (548), 537 states have return successors, (964), 613 states have call predecessors, (964), 546 states have call successors, (964) [2023-12-16 08:12:41,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 6261 transitions. [2023-12-16 08:12:41,219 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 6261 transitions. Word has length 71 [2023-12-16 08:12:41,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:41,219 INFO L495 AbstractCegarLoop]: Abstraction has 4637 states and 6261 transitions. [2023-12-16 08:12:41,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:41,220 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 6261 transitions. [2023-12-16 08:12:41,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:41,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:41,222 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] [2023-12-16 08:12:41,227 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 08:12:41,425 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 08:12:41,426 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:41,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:41,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1008303354, now seen corresponding path program 1 times [2023-12-16 08:12:41,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:41,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225030040] [2023-12-16 08:12:41,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:41,426 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 08:12:41,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:41,427 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 08:12:41,457 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 08:12:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:41,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:41,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:41,565 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 08:12:41,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:41,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:41,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225030040] [2023-12-16 08:12:41,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225030040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:41,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:41,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:41,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034571057] [2023-12-16 08:12:41,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:41,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:41,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:41,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:41,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:41,567 INFO L87 Difference]: Start difference. First operand 4637 states and 6261 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:42,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:42,170 INFO L93 Difference]: Finished difference Result 4957 states and 6739 transitions. [2023-12-16 08:12:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:42,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:42,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:42,184 INFO L225 Difference]: With dead ends: 4957 [2023-12-16 08:12:42,184 INFO L226 Difference]: Without dead ends: 4695 [2023-12-16 08:12:42,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 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 08:12:42,187 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 461 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:42,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 478 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2023-12-16 08:12:42,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 4695. [2023-12-16 08:12:42,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4695 states, 3602 states have (on average 1.337034980566352) internal successors, (4816), 3735 states have internal predecessors, (4816), 550 states have call successors, (550), 353 states have call predecessors, (550), 541 states have return successors, (966), 615 states have call predecessors, (966), 548 states have call successors, (966) [2023-12-16 08:12:42,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4695 states to 4695 states and 6332 transitions. [2023-12-16 08:12:42,480 INFO L78 Accepts]: Start accepts. Automaton has 4695 states and 6332 transitions. Word has length 71 [2023-12-16 08:12:42,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:42,481 INFO L495 AbstractCegarLoop]: Abstraction has 4695 states and 6332 transitions. [2023-12-16 08:12:42,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:42,482 INFO L276 IsEmpty]: Start isEmpty. Operand 4695 states and 6332 transitions. [2023-12-16 08:12:42,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:42,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:42,486 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] [2023-12-16 08:12:42,507 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 (15)] Ended with exit code 0 [2023-12-16 08:12:42,689 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 08:12:42,690 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:42,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:42,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1899878532, now seen corresponding path program 1 times [2023-12-16 08:12:42,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:42,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788008801] [2023-12-16 08:12:42,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:42,691 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 08:12:42,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:42,692 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 08:12:42,693 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 08:12:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:42,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:42,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:42,832 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 08:12:42,832 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:42,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:42,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788008801] [2023-12-16 08:12:42,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788008801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:42,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:42,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:42,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683974170] [2023-12-16 08:12:42,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:42,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:42,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:42,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:42,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:42,834 INFO L87 Difference]: Start difference. First operand 4695 states and 6332 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:43,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:43,395 INFO L93 Difference]: Finished difference Result 5073 states and 6881 transitions. [2023-12-16 08:12:43,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:43,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:43,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:43,406 INFO L225 Difference]: With dead ends: 5073 [2023-12-16 08:12:43,406 INFO L226 Difference]: Without dead ends: 4753 [2023-12-16 08:12:43,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 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 08:12:43,408 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 454 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:43,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 471 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:43,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4753 states. [2023-12-16 08:12:43,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4753 to 4753. [2023-12-16 08:12:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4753 states, 3654 states have (on average 1.3352490421455938) internal successors, (4879), 3787 states have internal predecessors, (4879), 552 states have call successors, (552), 357 states have call predecessors, (552), 545 states have return successors, (968), 617 states have call predecessors, (968), 550 states have call successors, (968) [2023-12-16 08:12:43,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4753 states to 4753 states and 6399 transitions. [2023-12-16 08:12:43,712 INFO L78 Accepts]: Start accepts. Automaton has 4753 states and 6399 transitions. Word has length 71 [2023-12-16 08:12:43,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:43,712 INFO L495 AbstractCegarLoop]: Abstraction has 4753 states and 6399 transitions. [2023-12-16 08:12:43,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:43,712 INFO L276 IsEmpty]: Start isEmpty. Operand 4753 states and 6399 transitions. [2023-12-16 08:12:43,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:43,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:43,714 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] [2023-12-16 08:12:43,718 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 08:12:43,917 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 08:12:43,917 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:43,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:43,918 INFO L85 PathProgramCache]: Analyzing trace with hash 297944919, now seen corresponding path program 1 times [2023-12-16 08:12:43,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:43,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119073396] [2023-12-16 08:12:43,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:43,918 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 08:12:43,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:43,919 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 08:12:43,948 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 08:12:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:44,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:44,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:44,044 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 08:12:44,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:44,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:44,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119073396] [2023-12-16 08:12:44,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119073396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:44,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:44,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:44,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766282571] [2023-12-16 08:12:44,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:44,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:44,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:44,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:44,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:44,046 INFO L87 Difference]: Start difference. First operand 4753 states and 6399 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:44,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:44,831 INFO L93 Difference]: Finished difference Result 5189 states and 7015 transitions. [2023-12-16 08:12:44,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:44,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:44,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:44,846 INFO L225 Difference]: With dead ends: 5189 [2023-12-16 08:12:44,847 INFO L226 Difference]: Without dead ends: 4811 [2023-12-16 08:12:44,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 67 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 08:12:44,849 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 447 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:44,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 464 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:12:44,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4811 states. [2023-12-16 08:12:45,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4811 to 4811. [2023-12-16 08:12:45,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4811 states, 3706 states have (on average 1.3324338909875877) internal successors, (4938), 3839 states have internal predecessors, (4938), 554 states have call successors, (554), 361 states have call predecessors, (554), 549 states have return successors, (970), 619 states have call predecessors, (970), 552 states have call successors, (970) [2023-12-16 08:12:45,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 6462 transitions. [2023-12-16 08:12:45,236 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 6462 transitions. Word has length 71 [2023-12-16 08:12:45,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:45,236 INFO L495 AbstractCegarLoop]: Abstraction has 4811 states and 6462 transitions. [2023-12-16 08:12:45,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:45,236 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 6462 transitions. [2023-12-16 08:12:45,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:45,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:45,240 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] [2023-12-16 08:12:45,246 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 (17)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:45,443 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 08:12:45,443 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:45,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:45,444 INFO L85 PathProgramCache]: Analyzing trace with hash 761114866, now seen corresponding path program 1 times [2023-12-16 08:12:45,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:45,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714251020] [2023-12-16 08:12:45,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:45,444 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 08:12:45,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:45,446 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 08:12:45,489 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 08:12:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:45,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:45,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:45,556 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 08:12:45,556 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:45,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:45,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714251020] [2023-12-16 08:12:45,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714251020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:45,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:45,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:45,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041537227] [2023-12-16 08:12:45,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:45,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:45,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:45,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:45,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:45,557 INFO L87 Difference]: Start difference. First operand 4811 states and 6462 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:45,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:45,849 INFO L93 Difference]: Finished difference Result 5290 states and 7120 transitions. [2023-12-16 08:12:45,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:45,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:45,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:45,864 INFO L225 Difference]: With dead ends: 5290 [2023-12-16 08:12:45,864 INFO L226 Difference]: Without dead ends: 4855 [2023-12-16 08:12:45,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 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 08:12:45,867 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 29 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:45,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 929 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:45,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2023-12-16 08:12:46,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4815. [2023-12-16 08:12:46,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4815 states, 3710 states have (on average 1.3304582210242588) internal successors, (4936), 3843 states have internal predecessors, (4936), 554 states have call successors, (554), 361 states have call predecessors, (554), 549 states have return successors, (970), 619 states have call predecessors, (970), 552 states have call successors, (970) [2023-12-16 08:12:46,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4815 states to 4815 states and 6460 transitions. [2023-12-16 08:12:46,203 INFO L78 Accepts]: Start accepts. Automaton has 4815 states and 6460 transitions. Word has length 71 [2023-12-16 08:12:46,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:46,204 INFO L495 AbstractCegarLoop]: Abstraction has 4815 states and 6460 transitions. [2023-12-16 08:12:46,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:46,204 INFO L276 IsEmpty]: Start isEmpty. Operand 4815 states and 6460 transitions. [2023-12-16 08:12:46,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:46,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:46,207 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] [2023-12-16 08:12:46,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-16 08:12:46,410 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 08:12:46,411 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:46,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:46,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1288272976, now seen corresponding path program 1 times [2023-12-16 08:12:46,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:46,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855703245] [2023-12-16 08:12:46,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:46,412 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 08:12:46,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:46,434 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 08:12:46,463 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 08:12:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:46,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:46,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:46,514 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 08:12:46,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:46,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:46,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855703245] [2023-12-16 08:12:46,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855703245] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:46,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:46,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:46,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094577525] [2023-12-16 08:12:46,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:46,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:46,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:46,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:46,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:46,517 INFO L87 Difference]: Start difference. First operand 4815 states and 6460 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:46,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:46,860 INFO L93 Difference]: Finished difference Result 5286 states and 7100 transitions. [2023-12-16 08:12:46,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:46,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:46,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:46,872 INFO L225 Difference]: With dead ends: 5286 [2023-12-16 08:12:46,873 INFO L226 Difference]: Without dead ends: 4847 [2023-12-16 08:12:46,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 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 08:12:46,875 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 20 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:46,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 933 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:46,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2023-12-16 08:12:47,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4819. [2023-12-16 08:12:47,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4819 states, 3714 states have (on average 1.3284868066774367) internal successors, (4934), 3847 states have internal predecessors, (4934), 554 states have call successors, (554), 361 states have call predecessors, (554), 549 states have return successors, (970), 619 states have call predecessors, (970), 552 states have call successors, (970) [2023-12-16 08:12:47,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4819 states to 4819 states and 6458 transitions. [2023-12-16 08:12:47,180 INFO L78 Accepts]: Start accepts. Automaton has 4819 states and 6458 transitions. Word has length 71 [2023-12-16 08:12:47,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:47,181 INFO L495 AbstractCegarLoop]: Abstraction has 4819 states and 6458 transitions. [2023-12-16 08:12:47,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:47,181 INFO L276 IsEmpty]: Start isEmpty. Operand 4819 states and 6458 transitions. [2023-12-16 08:12:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:47,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:47,184 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] [2023-12-16 08:12:47,190 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 (19)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:47,388 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 08:12:47,388 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:47,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:47,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1161327154, now seen corresponding path program 1 times [2023-12-16 08:12:47,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:47,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506661956] [2023-12-16 08:12:47,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:47,389 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 08:12:47,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:47,398 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 08:12:47,402 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 08:12:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:47,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:47,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:47,478 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 08:12:47,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:47,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:47,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506661956] [2023-12-16 08:12:47,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506661956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:47,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:47,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:47,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692763575] [2023-12-16 08:12:47,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:47,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:47,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:47,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:47,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:47,480 INFO L87 Difference]: Start difference. First operand 4819 states and 6458 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:47,945 INFO L93 Difference]: Finished difference Result 5342 states and 7162 transitions. [2023-12-16 08:12:47,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:47,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:47,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:47,956 INFO L225 Difference]: With dead ends: 5342 [2023-12-16 08:12:47,957 INFO L226 Difference]: Without dead ends: 4899 [2023-12-16 08:12:47,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 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 08:12:47,960 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 11 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:47,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 931 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:47,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4899 states. [2023-12-16 08:12:48,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4899 to 4835. [2023-12-16 08:12:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4835 states, 3730 states have (on average 1.3270777479892761) internal successors, (4950), 3863 states have internal predecessors, (4950), 554 states have call successors, (554), 361 states have call predecessors, (554), 549 states have return successors, (970), 619 states have call predecessors, (970), 552 states have call successors, (970) [2023-12-16 08:12:48,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4835 states to 4835 states and 6474 transitions. [2023-12-16 08:12:48,305 INFO L78 Accepts]: Start accepts. Automaton has 4835 states and 6474 transitions. Word has length 71 [2023-12-16 08:12:48,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:48,305 INFO L495 AbstractCegarLoop]: Abstraction has 4835 states and 6474 transitions. [2023-12-16 08:12:48,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:48,305 INFO L276 IsEmpty]: Start isEmpty. Operand 4835 states and 6474 transitions. [2023-12-16 08:12:48,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:48,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:48,308 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] [2023-12-16 08:12:48,314 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 08:12:48,511 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 08:12:48,512 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:48,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:48,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1082656144, now seen corresponding path program 1 times [2023-12-16 08:12:48,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:48,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504578525] [2023-12-16 08:12:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:48,513 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 08:12:48,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:48,537 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 08:12:48,571 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 08:12:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:48,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:12:48,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:48,617 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 08:12:48,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:48,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:48,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504578525] [2023-12-16 08:12:48,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504578525] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:48,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:48,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:48,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567290035] [2023-12-16 08:12:48,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:48,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:48,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:48,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:48,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:48,619 INFO L87 Difference]: Start difference. First operand 4835 states and 6474 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:48,934 INFO L93 Difference]: Finished difference Result 5302 states and 7094 transitions. [2023-12-16 08:12:48,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:12:48,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:48,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:48,957 INFO L225 Difference]: With dead ends: 5302 [2023-12-16 08:12:48,957 INFO L226 Difference]: Without dead ends: 4843 [2023-12-16 08:12:48,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 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 08:12:48,960 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 2 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:48,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 931 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:48,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4843 states. [2023-12-16 08:12:49,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4843 to 4839. [2023-12-16 08:12:49,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4839 states, 3734 states have (on average 1.325120514193894) internal successors, (4948), 3867 states have internal predecessors, (4948), 554 states have call successors, (554), 361 states have call predecessors, (554), 549 states have return successors, (970), 619 states have call predecessors, (970), 552 states have call successors, (970) [2023-12-16 08:12:49,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4839 states to 4839 states and 6472 transitions. [2023-12-16 08:12:49,307 INFO L78 Accepts]: Start accepts. Automaton has 4839 states and 6472 transitions. Word has length 71 [2023-12-16 08:12:49,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:49,307 INFO L495 AbstractCegarLoop]: Abstraction has 4839 states and 6472 transitions. [2023-12-16 08:12:49,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:49,307 INFO L276 IsEmpty]: Start isEmpty. Operand 4839 states and 6472 transitions. [2023-12-16 08:12:49,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:49,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:49,314 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] [2023-12-16 08:12:49,336 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 08:12:49,517 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 08:12:49,518 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:49,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:49,518 INFO L85 PathProgramCache]: Analyzing trace with hash 303547250, now seen corresponding path program 1 times [2023-12-16 08:12:49,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:49,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192542535] [2023-12-16 08:12:49,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:49,519 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 08:12:49,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:49,530 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 08:12:49,531 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 08:12:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:49,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:12:49,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:49,655 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 08:12:49,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:49,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:49,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192542535] [2023-12-16 08:12:49,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192542535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:49,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:49,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:49,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506078730] [2023-12-16 08:12:49,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:49,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:12:49,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:49,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:12:49,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:12:49,657 INFO L87 Difference]: Start difference. First operand 4839 states and 6472 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:50,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:50,280 INFO L93 Difference]: Finished difference Result 5363 states and 7149 transitions. [2023-12-16 08:12:50,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:12:50,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:50,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:50,293 INFO L225 Difference]: With dead ends: 5363 [2023-12-16 08:12:50,293 INFO L226 Difference]: Without dead ends: 4899 [2023-12-16 08:12:50,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 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 08:12:50,296 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 418 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:50,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 458 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:50,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4899 states. [2023-12-16 08:12:50,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4899 to 4879. [2023-12-16 08:12:50,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4879 states, 3772 states have (on average 1.3189289501590669) internal successors, (4975), 3905 states have internal predecessors, (4975), 554 states have call successors, (554), 363 states have call predecessors, (554), 551 states have return successors, (970), 619 states have call predecessors, (970), 552 states have call successors, (970) [2023-12-16 08:12:50,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 6499 transitions. [2023-12-16 08:12:50,612 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 6499 transitions. Word has length 71 [2023-12-16 08:12:50,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:50,613 INFO L495 AbstractCegarLoop]: Abstraction has 4879 states and 6499 transitions. [2023-12-16 08:12:50,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 08:12:50,613 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 6499 transitions. [2023-12-16 08:12:50,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 08:12:50,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:50,616 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] [2023-12-16 08:12:50,634 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 (22)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:50,820 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 08:12:50,820 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:50,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:50,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1385396492, now seen corresponding path program 1 times [2023-12-16 08:12:50,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:50,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200240084] [2023-12-16 08:12:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:50,821 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 08:12:50,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:50,844 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 08:12:50,848 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 08:12:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:50,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:50,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:51,007 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 08:12:51,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:51,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:51,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [200240084] [2023-12-16 08:12:51,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [200240084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:51,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:51,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:12:51,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142979084] [2023-12-16 08:12:51,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:51,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:51,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:51,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:51,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:51,008 INFO L87 Difference]: Start difference. First operand 4879 states and 6499 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 08:12:51,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:51,380 INFO L93 Difference]: Finished difference Result 5862 states and 7718 transitions. [2023-12-16 08:12:51,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:51,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 71 [2023-12-16 08:12:51,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:51,393 INFO L225 Difference]: With dead ends: 5862 [2023-12-16 08:12:51,394 INFO L226 Difference]: Without dead ends: 5359 [2023-12-16 08:12:51,398 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 08:12:51,399 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 258 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:51,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 493 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:12:51,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5359 states. [2023-12-16 08:12:51,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5359 to 5357. [2023-12-16 08:12:51,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5357 states, 4192 states have (on average 1.3077290076335877) internal successors, (5482), 4328 states have internal predecessors, (5482), 585 states have call successors, (585), 389 states have call predecessors, (585), 578 states have return successors, (1002), 648 states have call predecessors, (1002), 583 states have call successors, (1002) [2023-12-16 08:12:51,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5357 states to 5357 states and 7069 transitions. [2023-12-16 08:12:51,791 INFO L78 Accepts]: Start accepts. Automaton has 5357 states and 7069 transitions. Word has length 71 [2023-12-16 08:12:51,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:51,791 INFO L495 AbstractCegarLoop]: Abstraction has 5357 states and 7069 transitions. [2023-12-16 08:12:51,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 08:12:51,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5357 states and 7069 transitions. [2023-12-16 08:12:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 08:12:51,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:51,800 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:51,819 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 (23)] Forceful destruction successful, exit code 0 [2023-12-16 08:12:52,003 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 08:12:52,004 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:52,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:52,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1590832132, now seen corresponding path program 1 times [2023-12-16 08:12:52,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:52,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971024503] [2023-12-16 08:12:52,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:52,005 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 08:12:52,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:52,009 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 08:12:52,012 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 08:12:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:52,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:52,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:52,201 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 08:12:52,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:52,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:52,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971024503] [2023-12-16 08:12:52,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971024503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:52,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:52,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:12:52,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992817842] [2023-12-16 08:12:52,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:52,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:52,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:52,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:52,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:52,202 INFO L87 Difference]: Start difference. First operand 5357 states and 7069 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 08:12:52,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:52,578 INFO L93 Difference]: Finished difference Result 7156 states and 9272 transitions. [2023-12-16 08:12:52,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:52,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 115 [2023-12-16 08:12:52,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:52,591 INFO L225 Difference]: With dead ends: 7156 [2023-12-16 08:12:52,591 INFO L226 Difference]: Without dead ends: 6175 [2023-12-16 08:12:52,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 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 08:12:52,594 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 252 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:52,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 495 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:52,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2023-12-16 08:12:53,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 6169. [2023-12-16 08:12:53,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6169 states, 4904 states have (on average 1.2915986949429037) internal successors, (6334), 5044 states have internal predecessors, (6334), 639 states have call successors, (639), 433 states have call predecessors, (639), 624 states have return successors, (1058), 700 states have call predecessors, (1058), 637 states have call successors, (1058) [2023-12-16 08:12:53,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6169 states to 6169 states and 8031 transitions. [2023-12-16 08:12:53,056 INFO L78 Accepts]: Start accepts. Automaton has 6169 states and 8031 transitions. Word has length 115 [2023-12-16 08:12:53,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:53,057 INFO L495 AbstractCegarLoop]: Abstraction has 6169 states and 8031 transitions. [2023-12-16 08:12:53,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 08:12:53,057 INFO L276 IsEmpty]: Start isEmpty. Operand 6169 states and 8031 transitions. [2023-12-16 08:12:53,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 08:12:53,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:53,065 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:53,071 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 08:12:53,268 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 08:12:53,268 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:53,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:53,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1911516963, now seen corresponding path program 1 times [2023-12-16 08:12:53,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:53,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878112613] [2023-12-16 08:12:53,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:53,269 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 08:12:53,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:53,271 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 08:12:53,298 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 08:12:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:53,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:12:53,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 08:12:53,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:53,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:53,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878112613] [2023-12-16 08:12:53,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878112613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:53,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:53,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:53,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788982043] [2023-12-16 08:12:53,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:53,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:53,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:53,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:53,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:53,447 INFO L87 Difference]: Start difference. First operand 6169 states and 8031 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 08:12:54,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:54,232 INFO L93 Difference]: Finished difference Result 9645 states and 12219 transitions. [2023-12-16 08:12:54,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:54,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 115 [2023-12-16 08:12:54,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:54,245 INFO L225 Difference]: With dead ends: 9645 [2023-12-16 08:12:54,245 INFO L226 Difference]: Without dead ends: 7853 [2023-12-16 08:12:54,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 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 08:12:54,248 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 393 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:54,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 570 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:54,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7853 states. [2023-12-16 08:12:54,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 7851. [2023-12-16 08:12:54,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7851 states, 6375 states have (on average 1.2671372549019608) internal successors, (8078), 6528 states have internal predecessors, (8078), 750 states have call successors, (750), 521 states have call predecessors, (750), 724 states have return successors, (1205), 811 states have call predecessors, (1205), 748 states have call successors, (1205) [2023-12-16 08:12:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7851 states to 7851 states and 10033 transitions. [2023-12-16 08:12:54,787 INFO L78 Accepts]: Start accepts. Automaton has 7851 states and 10033 transitions. Word has length 115 [2023-12-16 08:12:54,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:54,787 INFO L495 AbstractCegarLoop]: Abstraction has 7851 states and 10033 transitions. [2023-12-16 08:12:54,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 08:12:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 7851 states and 10033 transitions. [2023-12-16 08:12:54,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 08:12:54,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:54,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:54,802 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 08:12:55,000 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 08:12:55,002 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:55,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:55,002 INFO L85 PathProgramCache]: Analyzing trace with hash 410284955, now seen corresponding path program 1 times [2023-12-16 08:12:55,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:55,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451339008] [2023-12-16 08:12:55,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:55,003 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 08:12:55,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:55,003 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 08:12:55,023 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 08:12:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:55,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:12:55,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 08:12:55,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:55,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:55,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451339008] [2023-12-16 08:12:55,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451339008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:55,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:55,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:12:55,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033217875] [2023-12-16 08:12:55,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:55,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:12:55,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:55,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:12:55,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:12:55,091 INFO L87 Difference]: Start difference. First operand 7851 states and 10033 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 08:12:55,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:55,498 INFO L93 Difference]: Finished difference Result 10519 states and 13212 transitions. [2023-12-16 08:12:55,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:12:55,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 115 [2023-12-16 08:12:55,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:55,510 INFO L225 Difference]: With dead ends: 10519 [2023-12-16 08:12:55,510 INFO L226 Difference]: Without dead ends: 7045 [2023-12-16 08:12:55,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 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 08:12:55,516 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 184 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:55,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 443 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:12:55,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7045 states. [2023-12-16 08:12:55,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7045 to 7045. [2023-12-16 08:12:56,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7045 states, 5672 states have (on average 1.275916784203103) internal successors, (7237), 5820 states have internal predecessors, (7237), 693 states have call successors, (693), 477 states have call predecessors, (693), 678 states have return successors, (1134), 756 states have call predecessors, (1134), 691 states have call successors, (1134) [2023-12-16 08:12:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7045 states to 7045 states and 9064 transitions. [2023-12-16 08:12:56,014 INFO L78 Accepts]: Start accepts. Automaton has 7045 states and 9064 transitions. Word has length 115 [2023-12-16 08:12:56,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:56,014 INFO L495 AbstractCegarLoop]: Abstraction has 7045 states and 9064 transitions. [2023-12-16 08:12:56,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 08:12:56,015 INFO L276 IsEmpty]: Start isEmpty. Operand 7045 states and 9064 transitions. [2023-12-16 08:12:56,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 08:12:56,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:56,023 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:56,028 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 08:12:56,226 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 08:12:56,226 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:56,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:56,227 INFO L85 PathProgramCache]: Analyzing trace with hash 61280792, now seen corresponding path program 1 times [2023-12-16 08:12:56,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:56,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871340005] [2023-12-16 08:12:56,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:56,227 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 08:12:56,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:56,228 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 08:12:56,229 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 08:12:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:56,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:12:56,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 08:12:56,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:56,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:56,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871340005] [2023-12-16 08:12:56,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871340005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:56,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:56,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:56,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933767665] [2023-12-16 08:12:56,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:56,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:56,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:56,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:56,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:56,427 INFO L87 Difference]: Start difference. First operand 7045 states and 9064 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 08:12:57,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:57,215 INFO L93 Difference]: Finished difference Result 11971 states and 14938 transitions. [2023-12-16 08:12:57,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:57,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 117 [2023-12-16 08:12:57,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:57,258 INFO L225 Difference]: With dead ends: 11971 [2023-12-16 08:12:57,258 INFO L226 Difference]: Without dead ends: 9303 [2023-12-16 08:12:57,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 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 08:12:57,266 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 393 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:57,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 442 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:12:57,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9303 states. [2023-12-16 08:12:57,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9303 to 9301. [2023-12-16 08:12:57,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9301 states, 7644 states have (on average 1.25130821559393) internal successors, (9565), 7812 states have internal predecessors, (9565), 839 states have call successors, (839), 593 states have call predecessors, (839), 816 states have return successors, (1326), 904 states have call predecessors, (1326), 837 states have call successors, (1326) [2023-12-16 08:12:57,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9301 states to 9301 states and 11730 transitions. [2023-12-16 08:12:57,866 INFO L78 Accepts]: Start accepts. Automaton has 9301 states and 11730 transitions. Word has length 117 [2023-12-16 08:12:57,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:12:57,866 INFO L495 AbstractCegarLoop]: Abstraction has 9301 states and 11730 transitions. [2023-12-16 08:12:57,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 08:12:57,866 INFO L276 IsEmpty]: Start isEmpty. Operand 9301 states and 11730 transitions. [2023-12-16 08:12:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 08:12:57,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:12:57,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:57,898 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 08:12:58,080 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 08:12:58,081 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:12:58,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:12:58,081 INFO L85 PathProgramCache]: Analyzing trace with hash 255260765, now seen corresponding path program 1 times [2023-12-16 08:12:58,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:12:58,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015489712] [2023-12-16 08:12:58,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:12:58,082 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 08:12:58,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:12:58,083 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 08:12:58,084 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 08:12:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:12:58,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:12:58,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:12:58,281 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 08:12:58,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:12:58,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:12:58,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015489712] [2023-12-16 08:12:58,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015489712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:12:58,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:12:58,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:12:58,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955314673] [2023-12-16 08:12:58,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:12:58,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:12:58,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:12:58,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:12:58,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:12:58,283 INFO L87 Difference]: Start difference. First operand 9301 states and 11730 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 08:12:59,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:12:59,320 INFO L93 Difference]: Finished difference Result 18333 states and 22459 transitions. [2023-12-16 08:12:59,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:12:59,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 119 [2023-12-16 08:12:59,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:12:59,358 INFO L225 Difference]: With dead ends: 18333 [2023-12-16 08:12:59,358 INFO L226 Difference]: Without dead ends: 13409 [2023-12-16 08:12:59,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 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 08:12:59,370 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 382 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:12:59,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 514 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:12:59,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13409 states. [2023-12-16 08:13:00,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13409 to 13407. [2023-12-16 08:13:00,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13407 states, 11211 states have (on average 1.227187583623227) internal successors, (13758), 11428 states have internal predecessors, (13758), 1110 states have call successors, (1110), 801 states have call predecessors, (1110), 1084 states have return successors, (1705), 1187 states have call predecessors, (1705), 1108 states have call successors, (1705) [2023-12-16 08:13:00,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13407 states to 13407 states and 16573 transitions. [2023-12-16 08:13:00,278 INFO L78 Accepts]: Start accepts. Automaton has 13407 states and 16573 transitions. Word has length 119 [2023-12-16 08:13:00,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:00,279 INFO L495 AbstractCegarLoop]: Abstraction has 13407 states and 16573 transitions. [2023-12-16 08:13:00,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 08:13:00,279 INFO L276 IsEmpty]: Start isEmpty. Operand 13407 states and 16573 transitions. [2023-12-16 08:13:00,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 08:13:00,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:00,297 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:00,302 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 08:13:00,502 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 08:13:00,502 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:00,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:00,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1876089957, now seen corresponding path program 1 times [2023-12-16 08:13:00,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:00,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35993105] [2023-12-16 08:13:00,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:00,503 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 08:13:00,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:00,504 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 08:13:00,506 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 08:13:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:00,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:00,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 08:13:00,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:00,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:00,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35993105] [2023-12-16 08:13:00,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35993105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:00,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:00,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:00,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156238878] [2023-12-16 08:13:00,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:00,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:00,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:00,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:00,592 INFO L87 Difference]: Start difference. First operand 13407 states and 16573 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 08:13:01,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:01,506 INFO L93 Difference]: Finished difference Result 22433 states and 27254 transitions. [2023-12-16 08:13:01,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:01,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 119 [2023-12-16 08:13:01,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:01,550 INFO L225 Difference]: With dead ends: 22433 [2023-12-16 08:13:01,550 INFO L226 Difference]: Without dead ends: 13403 [2023-12-16 08:13:01,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 08:13:01,568 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 181 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:01,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 442 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:13:01,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13403 states. [2023-12-16 08:13:02,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13403 to 13403. [2023-12-16 08:13:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13403 states, 11210 states have (on average 1.2271186440677966) internal successors, (13756), 11426 states have internal predecessors, (13756), 1107 states have call successors, (1107), 801 states have call predecessors, (1107), 1084 states have return successors, (1702), 1184 states have call predecessors, (1702), 1105 states have call successors, (1702) [2023-12-16 08:13:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13403 states to 13403 states and 16565 transitions. [2023-12-16 08:13:02,440 INFO L78 Accepts]: Start accepts. Automaton has 13403 states and 16565 transitions. Word has length 119 [2023-12-16 08:13:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:02,441 INFO L495 AbstractCegarLoop]: Abstraction has 13403 states and 16565 transitions. [2023-12-16 08:13:02,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 08:13:02,441 INFO L276 IsEmpty]: Start isEmpty. Operand 13403 states and 16565 transitions. [2023-12-16 08:13:02,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 08:13:02,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:02,452 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:02,467 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 (29)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:02,656 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 08:13:02,656 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:02,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:02,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1519679576, now seen corresponding path program 1 times [2023-12-16 08:13:02,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:02,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588078189] [2023-12-16 08:13:02,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:02,657 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 08:13:02,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:02,659 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 08:13:02,684 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 (30)] Waiting until timeout for monitored process [2023-12-16 08:13:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:02,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:02,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:02,764 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 08:13:02,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:02,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:02,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588078189] [2023-12-16 08:13:02,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588078189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:02,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:02,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:02,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790388951] [2023-12-16 08:13:02,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:02,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:02,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:02,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:02,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:02,766 INFO L87 Difference]: Start difference. First operand 13403 states and 16565 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 08:13:04,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:04,027 INFO L93 Difference]: Finished difference Result 29476 states and 35752 transitions. [2023-12-16 08:13:04,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:04,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 121 [2023-12-16 08:13:04,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:04,076 INFO L225 Difference]: With dead ends: 29476 [2023-12-16 08:13:04,076 INFO L226 Difference]: Without dead ends: 16975 [2023-12-16 08:13:04,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 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 08:13:04,101 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 147 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 750 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 08:13:04,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 750 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:04,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16975 states. [2023-12-16 08:13:05,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16975 to 16975. [2023-12-16 08:13:05,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16975 states, 14322 states have (on average 1.2149839407903924) internal successors, (17401), 14560 states have internal predecessors, (17401), 1351 states have call successors, (1351), 985 states have call predecessors, (1351), 1300 states have return successors, (2044), 1438 states have call predecessors, (2044), 1349 states have call successors, (2044) [2023-12-16 08:13:05,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16975 states to 16975 states and 20796 transitions. [2023-12-16 08:13:05,256 INFO L78 Accepts]: Start accepts. Automaton has 16975 states and 20796 transitions. Word has length 121 [2023-12-16 08:13:05,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:05,256 INFO L495 AbstractCegarLoop]: Abstraction has 16975 states and 20796 transitions. [2023-12-16 08:13:05,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 08:13:05,256 INFO L276 IsEmpty]: Start isEmpty. Operand 16975 states and 20796 transitions. [2023-12-16 08:13:05,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 08:13:05,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:05,272 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:05,276 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 (30)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:05,475 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 08:13:05,476 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:05,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:05,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1883201715, now seen corresponding path program 1 times [2023-12-16 08:13:05,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:05,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258014399] [2023-12-16 08:13:05,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:05,477 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 08:13:05,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:05,478 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 08:13:05,479 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 08:13:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:05,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:13:05,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 08:13:05,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:05,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:05,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258014399] [2023-12-16 08:13:05,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258014399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:05,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:05,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 08:13:05,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264308683] [2023-12-16 08:13:05,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:05,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 08:13:05,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:05,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 08:13:05,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 08:13:05,597 INFO L87 Difference]: Start difference. First operand 16975 states and 20796 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 08:13:06,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:06,686 INFO L93 Difference]: Finished difference Result 21331 states and 26750 transitions. [2023-12-16 08:13:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:13:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2023-12-16 08:13:06,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:06,720 INFO L225 Difference]: With dead ends: 21331 [2023-12-16 08:13:06,720 INFO L226 Difference]: Without dead ends: 17015 [2023-12-16 08:13:06,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 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 08:13:06,762 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 32 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:06,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1531 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:06,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17015 states. [2023-12-16 08:13:07,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17015 to 16529. [2023-12-16 08:13:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16529 states, 14044 states have (on average 1.209698091711763) internal successors, (16989), 14221 states have internal predecessors, (16989), 1255 states have call successors, (1255), 934 states have call predecessors, (1255), 1228 states have return successors, (1901), 1382 states have call predecessors, (1901), 1253 states have call successors, (1901) [2023-12-16 08:13:07,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16529 states to 16529 states and 20145 transitions. [2023-12-16 08:13:07,883 INFO L78 Accepts]: Start accepts. Automaton has 16529 states and 20145 transitions. Word has length 138 [2023-12-16 08:13:07,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:07,883 INFO L495 AbstractCegarLoop]: Abstraction has 16529 states and 20145 transitions. [2023-12-16 08:13:07,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 08:13:07,883 INFO L276 IsEmpty]: Start isEmpty. Operand 16529 states and 20145 transitions. [2023-12-16 08:13:07,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 08:13:07,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:07,894 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:07,898 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 08:13:08,098 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 08:13:08,098 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:08,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:08,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1619483037, now seen corresponding path program 1 times [2023-12-16 08:13:08,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:08,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542022978] [2023-12-16 08:13:08,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:08,099 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 08:13:08,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:08,100 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 08:13:08,127 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 08:13:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:08,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:08,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:08,185 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-16 08:13:08,185 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:08,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:08,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542022978] [2023-12-16 08:13:08,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542022978] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:08,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:08,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:08,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019768741] [2023-12-16 08:13:08,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:08,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:08,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:08,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:08,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:08,186 INFO L87 Difference]: Start difference. First operand 16529 states and 20145 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 08:13:08,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:08,993 INFO L93 Difference]: Finished difference Result 18836 states and 23208 transitions. [2023-12-16 08:13:08,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:08,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 139 [2023-12-16 08:13:08,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:09,026 INFO L225 Difference]: With dead ends: 18836 [2023-12-16 08:13:09,027 INFO L226 Difference]: Without dead ends: 15006 [2023-12-16 08:13:09,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 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 08:13:09,034 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 138 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:09,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 477 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:13:09,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15006 states. [2023-12-16 08:13:09,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15006 to 15006. [2023-12-16 08:13:09,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15006 states, 12863 states have (on average 1.200264324030164) internal successors, (15439), 13014 states have internal predecessors, (15439), 1079 states have call successors, (1079), 822 states have call predecessors, (1079), 1062 states have return successors, (1581), 1170 states have call predecessors, (1581), 1077 states have call successors, (1581) [2023-12-16 08:13:09,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15006 states to 15006 states and 18099 transitions. [2023-12-16 08:13:09,956 INFO L78 Accepts]: Start accepts. Automaton has 15006 states and 18099 transitions. Word has length 139 [2023-12-16 08:13:09,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:09,956 INFO L495 AbstractCegarLoop]: Abstraction has 15006 states and 18099 transitions. [2023-12-16 08:13:09,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 08:13:09,956 INFO L276 IsEmpty]: Start isEmpty. Operand 15006 states and 18099 transitions. [2023-12-16 08:13:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 08:13:09,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:09,965 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:09,972 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 (32)] Forceful destruction successful, exit code 0 [2023-12-16 08:13:10,169 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 08:13:10,170 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:10,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:10,170 INFO L85 PathProgramCache]: Analyzing trace with hash 659024134, now seen corresponding path program 1 times [2023-12-16 08:13:10,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:10,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436679341] [2023-12-16 08:13:10,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:10,171 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 08:13:10,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:10,172 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 08:13:10,199 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 08:13:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:10,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:10,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 08:13:10,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:10,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:10,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436679341] [2023-12-16 08:13:10,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [436679341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:10,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:10,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:10,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878033585] [2023-12-16 08:13:10,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:10,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:10,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:10,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:10,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:10,346 INFO L87 Difference]: Start difference. First operand 15006 states and 18099 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 08:13:11,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:11,348 INFO L93 Difference]: Finished difference Result 18706 states and 23160 transitions. [2023-12-16 08:13:11,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:11,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 141 [2023-12-16 08:13:11,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:11,382 INFO L225 Difference]: With dead ends: 18706 [2023-12-16 08:13:11,382 INFO L226 Difference]: Without dead ends: 16599 [2023-12-16 08:13:11,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:11,391 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 64 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:11,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 607 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:13:11,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16599 states. [2023-12-16 08:13:12,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16599 to 16571. [2023-12-16 08:13:12,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16571 states, 14090 states have (on average 1.2119943222143363) internal successors, (17077), 14277 states have internal predecessors, (17077), 1235 states have call successors, (1235), 930 states have call predecessors, (1235), 1244 states have return successors, (1890), 1364 states have call predecessors, (1890), 1233 states have call successors, (1890) [2023-12-16 08:13:12,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16571 states to 16571 states and 20202 transitions. [2023-12-16 08:13:12,437 INFO L78 Accepts]: Start accepts. Automaton has 16571 states and 20202 transitions. Word has length 141 [2023-12-16 08:13:12,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:12,437 INFO L495 AbstractCegarLoop]: Abstraction has 16571 states and 20202 transitions. [2023-12-16 08:13:12,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 08:13:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 16571 states and 20202 transitions. [2023-12-16 08:13:12,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 08:13:12,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:12,445 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:12,449 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 (33)] Ended with exit code 0 [2023-12-16 08:13:12,648 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 08:13:12,649 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:12,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:12,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1843992429, now seen corresponding path program 1 times [2023-12-16 08:13:12,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:12,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350359047] [2023-12-16 08:13:12,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:12,650 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 08:13:12,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:12,651 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 08:13:12,679 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 08:13:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:12,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:12,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:12,769 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 08:13:12,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:12,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:12,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350359047] [2023-12-16 08:13:12,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350359047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:12,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:12,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:12,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014959500] [2023-12-16 08:13:12,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:12,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:12,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:12,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:12,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:12,771 INFO L87 Difference]: Start difference. First operand 16571 states and 20202 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 08:13:13,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:13,965 INFO L93 Difference]: Finished difference Result 23487 states and 29943 transitions. [2023-12-16 08:13:13,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:13,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2023-12-16 08:13:13,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:14,017 INFO L225 Difference]: With dead ends: 23487 [2023-12-16 08:13:14,017 INFO L226 Difference]: Without dead ends: 19815 [2023-12-16 08:13:14,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:14,033 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 94 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:14,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 645 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:13:14,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19815 states. [2023-12-16 08:13:15,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19815 to 19763. [2023-12-16 08:13:15,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19763 states, 16582 states have (on average 1.2227113737787962) internal successors, (20275), 16819 states have internal predecessors, (20275), 1571 states have call successors, (1571), 1164 states have call predecessors, (1571), 1608 states have return successors, (2688), 1780 states have call predecessors, (2688), 1569 states have call successors, (2688) [2023-12-16 08:13:15,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19763 states to 19763 states and 24534 transitions. [2023-12-16 08:13:15,423 INFO L78 Accepts]: Start accepts. Automaton has 19763 states and 24534 transitions. Word has length 142 [2023-12-16 08:13:15,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:15,424 INFO L495 AbstractCegarLoop]: Abstraction has 19763 states and 24534 transitions. [2023-12-16 08:13:15,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 08:13:15,424 INFO L276 IsEmpty]: Start isEmpty. Operand 19763 states and 24534 transitions. [2023-12-16 08:13:15,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 08:13:15,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:15,434 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:15,438 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 08:13:15,637 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 08:13:15,638 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:15,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:15,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1055610260, now seen corresponding path program 1 times [2023-12-16 08:13:15,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:15,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538278706] [2023-12-16 08:13:15,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:15,639 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 08:13:15,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:15,640 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 08:13:15,643 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 08:13:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:15,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:15,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:15,837 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-16 08:13:15,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:15,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:15,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538278706] [2023-12-16 08:13:15,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538278706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:15,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:15,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:13:15,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460694130] [2023-12-16 08:13:15,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:15,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:15,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:15,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:15,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:15,839 INFO L87 Difference]: Start difference. First operand 19763 states and 24534 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 08:13:17,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:17,656 INFO L93 Difference]: Finished difference Result 33375 states and 43191 transitions. [2023-12-16 08:13:17,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:17,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 143 [2023-12-16 08:13:17,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:17,728 INFO L225 Difference]: With dead ends: 33375 [2023-12-16 08:13:17,728 INFO L226 Difference]: Without dead ends: 26511 [2023-12-16 08:13:17,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 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 08:13:17,747 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 68 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:17,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 612 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:13:17,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26511 states. [2023-12-16 08:13:20,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26511 to 26507. [2023-12-16 08:13:20,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26507 states, 21849 states have (on average 1.237539475490869) internal successors, (27039), 22215 states have internal predecessors, (27039), 2279 states have call successors, (2279), 1650 states have call predecessors, (2279), 2377 states have return successors, (4162), 2642 states have call predecessors, (4162), 2277 states have call successors, (4162) [2023-12-16 08:13:20,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26507 states to 26507 states and 33480 transitions. [2023-12-16 08:13:20,146 INFO L78 Accepts]: Start accepts. Automaton has 26507 states and 33480 transitions. Word has length 143 [2023-12-16 08:13:20,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:20,147 INFO L495 AbstractCegarLoop]: Abstraction has 26507 states and 33480 transitions. [2023-12-16 08:13:20,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 08:13:20,147 INFO L276 IsEmpty]: Start isEmpty. Operand 26507 states and 33480 transitions. [2023-12-16 08:13:20,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 08:13:20,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:20,162 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:13:20,166 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 08:13:20,365 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 08:13:20,366 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:20,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1433129287, now seen corresponding path program 1 times [2023-12-16 08:13:20,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:20,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561530455] [2023-12-16 08:13:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:20,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:13:20,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:20,368 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 08:13:20,396 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 08:13:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:20,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:13:20,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-16 08:13:20,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:20,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:20,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561530455] [2023-12-16 08:13:20,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561530455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:20,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:20,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:13:20,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800656534] [2023-12-16 08:13:20,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:20,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:13:20,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:20,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:13:20,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:13:20,477 INFO L87 Difference]: Start difference. First operand 26507 states and 33480 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 08:13:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:23,911 INFO L93 Difference]: Finished difference Result 53154 states and 69228 transitions. [2023-12-16 08:13:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:13:23,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 147 [2023-12-16 08:13:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:24,021 INFO L225 Difference]: With dead ends: 53154 [2023-12-16 08:13:24,021 INFO L226 Difference]: Without dead ends: 39259 [2023-12-16 08:13:24,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 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 08:13:24,053 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 458 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:24,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 483 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:13:24,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39259 states. [2023-12-16 08:13:27,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39259 to 39211. [2023-12-16 08:13:27,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39211 states, 31647 states have (on average 1.2488387524883875) internal successors, (39522), 32236 states have internal predecessors, (39522), 3674 states have call successors, (3674), 2601 states have call predecessors, (3674), 3888 states have return successors, (6956), 4374 states have call predecessors, (6956), 3672 states have call successors, (6956) [2023-12-16 08:13:28,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39211 states to 39211 states and 50152 transitions. [2023-12-16 08:13:28,075 INFO L78 Accepts]: Start accepts. Automaton has 39211 states and 50152 transitions. Word has length 147 [2023-12-16 08:13:28,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:13:28,075 INFO L495 AbstractCegarLoop]: Abstraction has 39211 states and 50152 transitions. [2023-12-16 08:13:28,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 08:13:28,075 INFO L276 IsEmpty]: Start isEmpty. Operand 39211 states and 50152 transitions. [2023-12-16 08:13:28,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 08:13:28,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:13:28,195 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:28,199 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 08:13:28,395 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 08:13:28,396 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:13:28,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:13:28,396 INFO L85 PathProgramCache]: Analyzing trace with hash -497789329, now seen corresponding path program 1 times [2023-12-16 08:13:28,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:13:28,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92128767] [2023-12-16 08:13:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:13:28,397 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 08:13:28,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:13:28,398 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 08:13:28,400 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 08:13:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:13:28,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:13:28,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:13:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 08:13:28,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:13:28,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:13:28,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92128767] [2023-12-16 08:13:28,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92128767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:13:28,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:13:28,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:13:28,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592785116] [2023-12-16 08:13:28,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:13:28,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:13:28,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:13:28,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:13:28,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:13:28,605 INFO L87 Difference]: Start difference. First operand 39211 states and 50152 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 08:13:32,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:13:32,306 INFO L93 Difference]: Finished difference Result 55364 states and 69344 transitions. [2023-12-16 08:13:32,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:13:32,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 152 [2023-12-16 08:13:32,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:13:32,437 INFO L225 Difference]: With dead ends: 55364 [2023-12-16 08:13:32,437 INFO L226 Difference]: Without dead ends: 42765 [2023-12-16 08:13:32,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 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 08:13:32,466 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 226 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:13:32,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 459 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:13:32,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42765 states. Received shutdown request... [2023-12-16 08:13:35,823 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:13:35,831 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 (37)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:13:36,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42765 to 42729. [2023-12-16 08:13:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42729 states, 34709 states have (on average 1.2390446281944165) internal successors, (43006), 35318 states have internal predecessors, (43006), 3918 states have call successors, (3918), 2785 states have call predecessors, (3918), 4100 states have return successors, (7264), 4626 states have call predecessors, (7264), 3916 states have call successors, (7264) [2023-12-16 08:13:36,746 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 08:13:36,750 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 (37)] Ended with exit code 0 [2023-12-16 08:13:36,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 08:13:36,950 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 08:13:36,952 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 08:13:36,953 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 08:13:36,956 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 08:13:36,957 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:13:36,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:13:36 BoogieIcfgContainer [2023-12-16 08:13:36,958 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:13:36,959 INFO L158 Benchmark]: Toolchain (without parser) took 67924.00ms. Allocated memory was 269.5MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 219.9MB in the beginning and 5.0GB in the end (delta: -4.8GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-16 08:13:36,959 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 182.5MB. Free memory is still 135.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:13:36,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.04ms. Allocated memory is still 269.5MB. Free memory was 219.4MB in the beginning and 198.9MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-16 08:13:36,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.50ms. Allocated memory is still 269.5MB. Free memory was 198.9MB in the beginning and 195.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 08:13:36,959 INFO L158 Benchmark]: Boogie Preprocessor took 77.37ms. Allocated memory is still 269.5MB. Free memory was 195.8MB in the beginning and 191.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 08:13:36,959 INFO L158 Benchmark]: RCFGBuilder took 769.74ms. Allocated memory is still 269.5MB. Free memory was 191.6MB in the beginning and 143.9MB in the end (delta: 47.7MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. [2023-12-16 08:13:36,959 INFO L158 Benchmark]: TraceAbstraction took 66621.71ms. Allocated memory was 269.5MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 142.8MB in the beginning and 5.0GB in the end (delta: -4.9GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 08:13:36,960 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 182.5MB. Free memory is still 135.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 387.04ms. Allocated memory is still 269.5MB. Free memory was 219.4MB in the beginning and 198.9MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.50ms. Allocated memory is still 269.5MB. Free memory was 198.9MB in the beginning and 195.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 77.37ms. Allocated memory is still 269.5MB. Free memory was 195.8MB in the beginning and 191.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 769.74ms. Allocated memory is still 269.5MB. Free memory was 191.6MB in the beginning and 143.9MB in the end (delta: 47.7MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. * TraceAbstraction took 66621.71ms. Allocated memory was 269.5MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 142.8MB in the beginning and 5.0GB in the end (delta: -4.9GB). Peak memory consumption was 1.6GB. 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: 599]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 599). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 27). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 245 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 66.6s, OverallIterations: 36, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 28.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9335 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9028 mSDsluCounter, 23994 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13943 mSDsCounter, 841 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7815 IncrementalHoareTripleChecker+Invalid, 8656 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 841 mSolverCounterUnsat, 10051 mSDtfsCounter, 7815 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3315 GetRequests, 3218 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39211occurred in iteration=35, InterpolantAutomatonStates: 155, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 25.1s AutomataMinimizationTime, 36 MinimizatonAttempts, 870 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 3325 NumberOfCodeBlocks, 3325 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 3289 ConstructedInterpolants, 0 QuantifiedInterpolants, 5581 SizeOfPredicates, 9 NumberOfNonLiveVariables, 7949 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 36 InterpolantComputations, 36 PerfectInterpolantSequences, 872/872 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