/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0480.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 21:00:13,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 21:00:13,431 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 21:00:13,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 21:00:13,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 21:00:13,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 21:00:13,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 21:00:13,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 21:00:13,468 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 21:00:13,471 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 21:00:13,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 21:00:13,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 21:00:13,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 21:00:13,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 21:00:13,473 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 21:00:13,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 21:00:13,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 21:00:13,473 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 21:00:13,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 21:00:13,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 21:00:13,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 21:00:13,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 21:00:13,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 21:00:13,476 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 21:00:13,477 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 21:00:13,477 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 21:00:13,477 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 21:00:13,477 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 21:00:13,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 21:00:13,478 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 21:00:13,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 21:00:13,478 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 21:00:13,479 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 21:00:13,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 21:00:13,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 21:00:13,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 21:00:13,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 21:00:13,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 21:00:13,480 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 21:00:13,480 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 21:00:13,480 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 21:00:13,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 21:00:13,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 21:00:13,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 21:00:13,481 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 21:00:13,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 21:00:13,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 21:00:13,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 21:00:13,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 21:00:13,713 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 21:00:13,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0480.c [2024-11-05 21:00:15,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 21:00:15,321 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 21:00:15,321 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0480.c [2024-11-05 21:00:15,330 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d83af6637/94e63f20cd564fa98a042185eed61956/FLAGf2082a8e4 [2024-11-05 21:00:15,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d83af6637/94e63f20cd564fa98a042185eed61956 [2024-11-05 21:00:15,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 21:00:15,346 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 21:00:15,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 21:00:15,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 21:00:15,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 21:00:15,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134b06c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15, skipping insertion in model container [2024-11-05 21:00:15,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,385 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 21:00:15,586 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0480.c[4489,4502] [2024-11-05 21:00:15,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 21:00:15,613 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 21:00:15,672 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0480.c[4489,4502] [2024-11-05 21:00:15,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 21:00:15,696 INFO L204 MainTranslator]: Completed translation [2024-11-05 21:00:15,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15 WrapperNode [2024-11-05 21:00:15,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 21:00:15,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 21:00:15,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 21:00:15,698 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 21:00:15,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,753 INFO L138 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 152 [2024-11-05 21:00:15,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 21:00:15,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 21:00:15,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 21:00:15,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 21:00:15,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,788 INFO L175 MemorySlicer]: Split 14 memory accesses to 7 slices as follows [2, 2, 2, 2, 2, 2, 2]. 14 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0]. The 6 writes are split as follows [0, 1, 1, 1, 1, 1, 1]. [2024-11-05 21:00:15,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 21:00:15,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 21:00:15,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 21:00:15,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 21:00:15,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (1/1) ... [2024-11-05 21:00:15,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 21:00:15,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 21:00:15,868 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) [2024-11-05 21:00:15,880 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 [2024-11-05 21:00:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 21:00:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 21:00:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-05 21:00:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-05 21:00:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-05 21:00:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-05 21:00:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-05 21:00:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-05 21:00:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-05 21:00:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-05 21:00:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-05 21:00:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-05 21:00:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-05 21:00:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-05 21:00:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-05 21:00:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-05 21:00:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-05 21:00:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-05 21:00:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-05 21:00:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-05 21:00:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-05 21:00:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-05 21:00:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-05 21:00:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 21:00:15,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 21:00:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-05 21:00:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-05 21:00:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-05 21:00:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-05 21:00:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-05 21:00:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-05 21:00:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-05 21:00:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-05 21:00:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-05 21:00:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-05 21:00:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-05 21:00:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-05 21:00:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-05 21:00:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-05 21:00:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-05 21:00:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-05 21:00:15,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-05 21:00:16,023 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 21:00:16,025 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 21:00:35,092 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-11-05 21:00:35,092 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 21:00:35,105 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 21:00:35,106 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-05 21:00:35,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:00:35 BoogieIcfgContainer [2024-11-05 21:00:35,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 21:00:35,108 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 21:00:35,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 21:00:35,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 21:00:35,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 09:00:15" (1/3) ... [2024-11-05 21:00:35,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40979fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:00:35, skipping insertion in model container [2024-11-05 21:00:35,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:00:15" (2/3) ... [2024-11-05 21:00:35,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40979fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:00:35, skipping insertion in model container [2024-11-05 21:00:35,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:00:35" (3/3) ... [2024-11-05 21:00:35,117 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2024-11-05 21:00:35,135 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 21:00:35,135 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 21:00:35,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 21:00:35,203 INFO L333 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, 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;@1d2d6dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 21:00:35,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 21:00:35,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 53 states have (on average 1.6415094339622642) internal successors, (87), 54 states have internal predecessors, (87), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-05 21:00:35,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-05 21:00:35,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 21:00:35,213 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 21:00:35,214 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 21:00:35,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 21:00:35,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1029505661, now seen corresponding path program 1 times [2024-11-05 21:00:35,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 21:00:35,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219862909] [2024-11-05 21:00:35,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 21:00:35,227 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 [2024-11-05 21:00:35,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 21:00:35,228 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) [2024-11-05 21:00:35,230 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 [2024-11-05 21:00:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 21:00:35,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 21:00:35,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 21:00:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 21:00:35,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 21:00:35,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 21:00:35,634 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 21:00:35,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [219862909] [2024-11-05 21:00:35,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [219862909] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 21:00:35,635 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 21:00:35,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-05 21:00:35,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861611213] [2024-11-05 21:00:35,637 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 21:00:35,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 21:00:35,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 21:00:35,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 21:00:35,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 21:00:35,658 INFO L87 Difference]: Start difference. First operand has 58 states, 53 states have (on average 1.6415094339622642) internal successors, (87), 54 states have internal predecessors, (87), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:00:35,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 21:00:35,680 INFO L93 Difference]: Finished difference Result 114 states and 182 transitions. [2024-11-05 21:00:35,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 21:00:35,682 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-05 21:00:35,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 21:00:35,690 INFO L225 Difference]: With dead ends: 114 [2024-11-05 21:00:35,690 INFO L226 Difference]: Without dead ends: 55 [2024-11-05 21:00:35,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 21:00:35,698 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 21:00:35,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 21:00:35,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-05 21:00:35,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-05 21:00:35,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 51 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-05 21:00:35,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 73 transitions. [2024-11-05 21:00:35,729 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 73 transitions. Word has length 10 [2024-11-05 21:00:35,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 21:00:35,730 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 73 transitions. [2024-11-05 21:00:35,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:00:35,730 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 73 transitions. [2024-11-05 21:00:35,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-05 21:00:35,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 21:00:35,731 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 21:00:35,750 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 [2024-11-05 21:00:35,931 WARN L453 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 [2024-11-05 21:00:35,932 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 21:00:35,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 21:00:35,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1305801536, now seen corresponding path program 1 times [2024-11-05 21:00:35,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 21:00:35,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399321431] [2024-11-05 21:00:35,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 21:00:35,933 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 [2024-11-05 21:00:35,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 21:00:35,935 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) [2024-11-05 21:00:35,936 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 [2024-11-05 21:00:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 21:00:36,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-05 21:00:36,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 21:00:36,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 21:00:36,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 21:00:36,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 21:00:36,961 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 21:00:36,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399321431] [2024-11-05 21:00:36,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1399321431] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 21:00:36,961 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 21:00:36,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2024-11-05 21:00:36,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782677346] [2024-11-05 21:00:36,962 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 21:00:36,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-05 21:00:36,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 21:00:36,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-05 21:00:36,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-05 21:00:36,964 INFO L87 Difference]: Start difference. First operand 55 states and 73 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:00:42,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-05 21:00:46,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 21:00:51,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-05 21:00:55,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 21:00:59,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-05 21:01:03,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 21:01:03,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 21:01:03,589 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2024-11-05 21:01:03,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 21:01:03,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-05 21:01:03,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 21:01:03,806 INFO L225 Difference]: With dead ends: 60 [2024-11-05 21:01:03,806 INFO L226 Difference]: Without dead ends: 57 [2024-11-05 21:01:03,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-05 21:01:03,808 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2024-11-05 21:01:03,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 264 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 6 Unknown, 0 Unchecked, 26.6s Time] [2024-11-05 21:01:03,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-05 21:01:03,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-05 21:01:03,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 53 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-05 21:01:03,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2024-11-05 21:01:03,818 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 11 [2024-11-05 21:01:03,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 21:01:03,818 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2024-11-05 21:01:03,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:01:03,818 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2024-11-05 21:01:03,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-05 21:01:03,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 21:01:03,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 21:01:03,835 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 [2024-11-05 21:01:04,019 WARN L453 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 [2024-11-05 21:01:04,020 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 21:01:04,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 21:01:04,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1303954494, now seen corresponding path program 1 times [2024-11-05 21:01:04,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 21:01:04,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164210912] [2024-11-05 21:01:04,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 21:01:04,022 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 [2024-11-05 21:01:04,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 21:01:04,025 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) [2024-11-05 21:01:04,026 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 [2024-11-05 21:01:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 21:01:04,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-05 21:01:04,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 21:01:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 21:01:05,042 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 21:01:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 21:01:05,853 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 21:01:05,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164210912] [2024-11-05 21:01:05,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [164210912] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 21:01:05,853 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 21:01:05,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-05 21:01:05,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779421398] [2024-11-05 21:01:05,854 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 21:01:05,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 21:01:05,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 21:01:05,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 21:01:05,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 21:01:05,856 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:01:11,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-05 21:01:15,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2024-11-05 21:01:19,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-05 21:01:19,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 21:01:19,904 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2024-11-05 21:01:19,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 21:01:19,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-05 21:01:19,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 21:01:19,906 INFO L225 Difference]: With dead ends: 94 [2024-11-05 21:01:19,907 INFO L226 Difference]: Without dead ends: 57 [2024-11-05 21:01:19,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-05 21:01:19,908 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 34 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-05 21:01:19,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 170 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2024-11-05 21:01:19,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-05 21:01:19,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2024-11-05 21:01:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 52 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-05 21:01:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2024-11-05 21:01:19,914 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 11 [2024-11-05 21:01:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 21:01:19,915 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2024-11-05 21:01:19,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:01:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2024-11-05 21:01:19,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-05 21:01:19,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 21:01:19,916 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 21:01:19,937 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 (4)] Ended with exit code 0 [2024-11-05 21:01:20,120 WARN L453 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 [2024-11-05 21:01:20,121 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 21:01:20,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 21:01:20,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1098932832, now seen corresponding path program 1 times [2024-11-05 21:01:20,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 21:01:20,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146831092] [2024-11-05 21:01:20,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 21:01:20,123 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 [2024-11-05 21:01:20,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 21:01:20,126 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) [2024-11-05 21:01:20,128 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 [2024-11-05 21:01:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 21:01:20,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-05 21:01:20,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 21:01:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 21:01:21,392 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 21:01:22,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 21:01:22,568 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 21:01:22,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146831092] [2024-11-05 21:01:22,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [146831092] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 21:01:22,569 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 21:01:22,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2024-11-05 21:01:22,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995085733] [2024-11-05 21:01:22,569 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 21:01:22,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 21:01:22,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 21:01:22,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 21:01:22,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-05 21:01:22,570 INFO L87 Difference]: Start difference. First operand 55 states and 70 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:01:23,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 21:01:23,390 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2024-11-05 21:01:23,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 21:01:23,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-05 21:01:23,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 21:01:23,391 INFO L225 Difference]: With dead ends: 62 [2024-11-05 21:01:23,391 INFO L226 Difference]: Without dead ends: 16 [2024-11-05 21:01:23,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-05 21:01:23,393 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-05 21:01:23,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 44 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-05 21:01:23,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-05 21:01:23,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-05 21:01:23,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:01:23,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2024-11-05 21:01:23,396 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2024-11-05 21:01:23,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 21:01:23,397 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2024-11-05 21:01:23,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:01:23,397 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2024-11-05 21:01:23,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-05 21:01:23,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 21:01:23,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 21:01:23,414 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 [2024-11-05 21:01:23,598 WARN L453 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 [2024-11-05 21:01:23,599 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 21:01:23,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 21:01:23,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1217406699, now seen corresponding path program 1 times [2024-11-05 21:01:23,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 21:01:23,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606816677] [2024-11-05 21:01:23,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 21:01:23,600 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 [2024-11-05 21:01:23,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 21:01:23,601 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) [2024-11-05 21:01:23,602 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 [2024-11-05 21:01:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 21:01:23,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-05 21:01:23,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 21:01:25,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 21:01:25,894 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 21:01:28,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-05 21:01:28,435 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 21:01:28,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606816677] [2024-11-05 21:01:28,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1606816677] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 21:01:28,436 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 21:01:28,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2024-11-05 21:01:28,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415591555] [2024-11-05 21:01:28,437 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 21:01:28,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-05 21:01:28,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 21:01:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-05 21:01:28,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-05 21:01:28,439 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:01:30,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 21:01:30,163 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2024-11-05 21:01:30,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-05 21:01:30,164 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-05 21:01:30,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 21:01:30,164 INFO L225 Difference]: With dead ends: 16 [2024-11-05 21:01:30,164 INFO L226 Difference]: Without dead ends: 0 [2024-11-05 21:01:30,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-05 21:01:30,165 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-05 21:01:30,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 64 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-05 21:01:30,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-05 21:01:30,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-05 21:01:30,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:01:30,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-05 21:01:30,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2024-11-05 21:01:30,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 21:01:30,167 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-05 21:01:30,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-05 21:01:30,167 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-05 21:01:30,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-05 21:01:30,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-05 21:01:30,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-05 21:01:30,370 WARN L453 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 [2024-11-05 21:01:30,373 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-05 21:01:30,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-05 21:01:30,742 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-05 21:01:30,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 09:01:30 BoogieIcfgContainer [2024-11-05 21:01:30,763 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-05 21:01:30,763 INFO L158 Benchmark]: Toolchain (without parser) took 75417.60ms. Allocated memory is still 378.5MB. Free memory was 328.2MB in the beginning and 220.5MB in the end (delta: 107.7MB). Peak memory consumption was 108.7MB. Max. memory is 8.0GB. [2024-11-05 21:01:30,764 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory is still 152.2MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 21:01:30,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.81ms. Allocated memory is still 378.5MB. Free memory was 328.2MB in the beginning and 311.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-05 21:01:30,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.94ms. Allocated memory is still 378.5MB. Free memory was 311.6MB in the beginning and 309.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-05 21:01:30,764 INFO L158 Benchmark]: Boogie Preprocessor took 78.52ms. Allocated memory is still 378.5MB. Free memory was 309.7MB in the beginning and 305.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-05 21:01:30,765 INFO L158 Benchmark]: RCFGBuilder took 19269.05ms. Allocated memory is still 378.5MB. Free memory was 305.2MB in the beginning and 339.5MB in the end (delta: -34.3MB). Peak memory consumption was 21.7MB. Max. memory is 8.0GB. [2024-11-05 21:01:30,765 INFO L158 Benchmark]: TraceAbstraction took 55654.85ms. Allocated memory is still 378.5MB. Free memory was 339.0MB in the beginning and 220.5MB in the end (delta: 118.5MB). Peak memory consumption was 118.5MB. Max. memory is 8.0GB. [2024-11-05 21:01:30,766 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 199.2MB. Free memory is still 152.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 349.81ms. Allocated memory is still 378.5MB. Free memory was 328.2MB in the beginning and 311.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.94ms. Allocated memory is still 378.5MB. Free memory was 311.6MB in the beginning and 309.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 78.52ms. Allocated memory is still 378.5MB. Free memory was 309.7MB in the beginning and 305.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 19269.05ms. Allocated memory is still 378.5MB. Free memory was 305.2MB in the beginning and 339.5MB in the end (delta: -34.3MB). Peak memory consumption was 21.7MB. Max. memory is 8.0GB. * TraceAbstraction took 55654.85ms. Allocated memory is still 378.5MB. Free memory was 339.0MB in the beginning and 220.5MB in the end (delta: 118.5MB). Peak memory consumption was 118.5MB. 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 - PositiveResult [Line: 184]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 43.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 41.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 618 SdHoareTripleChecker+Invalid, 41.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 388 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 230 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 20 QuantifiedInterpolants, 352 SizeOfPredicates, 17 NumberOfNonLiveVariables, 276 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 16]: Procedure Contract for __ieee754_sqrtf Derived contract for procedure __ieee754_sqrtf. Requires: 0 Ensures: (0 && ((((((((((((((((one_sqrt == \old(one_sqrt)) && (tiny_sqrt == \old(tiny_sqrt))) && (one_acos == \old(one_acos))) && (pi == \old(pi))) && (pio2_hi_acos == \old(pio2_hi_acos))) && (pio2_lo_acos == \old(pio2_lo_acos))) && (pS0_acos == \old(pS0_acos))) && (pS1_acos == \old(pS1_acos))) && (pS2_acos == \old(pS2_acos))) && (pS3_acos == \old(pS3_acos))) && (pS4_acos == \old(pS4_acos))) && (pS5_acos == \old(pS5_acos))) && (qS1_acos == \old(qS1_acos))) && (qS2_acos == \old(qS2_acos))) && (qS3_acos == \old(qS3_acos))) && (qS4_acos == \old(qS4_acos)))) RESULT: Ultimate proved your program to be correct! [2024-11-05 21:01:30,981 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-05 21:01:30,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...