/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0490a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 23:01:22,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 23:01:22,460 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-02 23:01:22,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 23:01:22,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 23:01:22,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 23:01:22,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 23:01:22,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 23:01:22,495 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 23:01:22,496 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 23:01:22,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 23:01:22,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 23:01:22,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 23:01:22,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 23:01:22,499 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 23:01:22,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 23:01:22,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 23:01:22,500 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 23:01:22,500 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 23:01:22,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 23:01:22,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 23:01:22,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 23:01:22,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 23:01:22,504 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 23:01:22,505 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 23:01:22,505 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 23:01:22,505 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 23:01:22,505 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 23:01:22,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 23:01:22,506 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 23:01:22,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 23:01:22,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 23:01:22,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 23:01:22,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 23:01:22,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 23:01:22,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 23:01:22,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 23:01:22,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 23:01:22,508 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 23:01:22,508 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 23:01:22,508 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 23:01:22,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 23:01:22,509 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 23:01:22,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 23:01:22,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:01:22,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 23:01:22,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 23:01:22,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 23:01:22,770 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 23:01:22,770 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 23:01:22,772 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0490a.c [2024-11-02 23:01:24,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 23:01:24,384 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 23:01:24,385 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0490a.c [2024-11-02 23:01:24,397 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/709d0ad2c/4ec6f9ea7dec408b96f1a25752375619/FLAGe3e0e8aac [2024-11-02 23:01:24,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/709d0ad2c/4ec6f9ea7dec408b96f1a25752375619 [2024-11-02 23:01:24,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 23:01:24,413 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 23:01:24,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 23:01:24,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 23:01:24,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 23:01:24,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@508fa85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24, skipping insertion in model container [2024-11-02 23:01:24,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,455 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 23:01:24,702 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/double_req_bl_0490a.c[9221,9234] [2024-11-02 23:01:24,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 23:01:24,723 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 23:01:24,802 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/double_req_bl_0490a.c[9221,9234] [2024-11-02 23:01:24,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 23:01:24,827 INFO L204 MainTranslator]: Completed translation [2024-11-02 23:01:24,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24 WrapperNode [2024-11-02 23:01:24,827 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 23:01:24,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 23:01:24,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 23:01:24,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 23:01:24,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,886 INFO L138 Inliner]: procedures = 26, calls = 63, calls flagged for inlining = 5, calls inlined = 4, statements flattened = 136 [2024-11-02 23:01:24,889 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 23:01:24,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 23:01:24,890 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 23:01:24,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 23:01:24,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,912 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,947 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 3, 2, 3, 3, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 2, 1, 2, 1, 1]. [2024-11-02 23:01:24,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:24,993 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 23:01:24,994 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 23:01:24,994 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 23:01:24,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 23:01:24,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (1/1) ... [2024-11-02 23:01:25,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 23:01:25,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:01:25,027 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) [2024-11-02 23:01:25,031 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 [2024-11-02 23:01:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 23:01:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-02 23:01:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-02 23:01:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-02 23:01:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-02 23:01:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-02 23:01:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-02 23:01:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-02 23:01:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-02 23:01:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-02 23:01:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-02 23:01:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-02 23:01:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-02 23:01:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 23:01:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-02 23:01:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-02 23:01:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-02 23:01:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-02 23:01:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-02 23:01:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 23:01:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-02 23:01:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-02 23:01:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-02 23:01:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-02 23:01:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-02 23:01:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-02 23:01:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2024-11-02 23:01:25,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2024-11-02 23:01:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 23:01:25,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 23:01:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-02 23:01:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-02 23:01:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-02 23:01:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-02 23:01:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-02 23:01:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-02 23:01:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 23:01:25,168 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 23:01:25,169 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 23:01:52,559 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-02 23:01:52,559 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 23:01:52,579 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 23:01:52,581 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-02 23:01:52,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:01:52 BoogieIcfgContainer [2024-11-02 23:01:52,581 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 23:01:52,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 23:01:52,586 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 23:01:52,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 23:01:52,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:01:24" (1/3) ... [2024-11-02 23:01:52,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68827994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:01:52, skipping insertion in model container [2024-11-02 23:01:52,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:01:24" (2/3) ... [2024-11-02 23:01:52,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68827994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:01:52, skipping insertion in model container [2024-11-02 23:01:52,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:01:52" (3/3) ... [2024-11-02 23:01:52,592 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0490a.c [2024-11-02 23:01:52,609 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 23:01:52,610 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 23:01:52,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 23:01:52,673 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;@274307ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 23:01:52,673 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 23:01:52,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 65 states have (on average 1.646153846153846) internal successors, (107), 66 states have internal predecessors, (107), 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) [2024-11-02 23:01:52,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-02 23:01:52,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:01:52,682 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:01:52,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:01:52,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:01:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash 807600397, now seen corresponding path program 1 times [2024-11-02 23:01:52,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:01:52,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [535897258] [2024-11-02 23:01:52,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:01:52,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:01:52,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:01:52,698 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:01:52,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 23:01:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:01:52,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 23:01:52,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:01:52,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:01:52,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:01:52,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:01:52,840 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:01:52,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [535897258] [2024-11-02 23:01:52,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [535897258] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:01:52,841 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:01:52,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-02 23:01:52,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032150934] [2024-11-02 23:01:52,844 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:01:52,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 23:01:52,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:01:52,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 23:01:52,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 23:01:52,878 INFO L87 Difference]: Start difference. First operand has 70 states, 65 states have (on average 1.646153846153846) internal successors, (107), 66 states have internal predecessors, (107), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-11-02 23:01:52,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:01:52,911 INFO L93 Difference]: Finished difference Result 138 states and 222 transitions. [2024-11-02 23:01:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 23:01:52,914 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 [2024-11-02 23:01:52,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:01:52,921 INFO L225 Difference]: With dead ends: 138 [2024-11-02 23:01:52,921 INFO L226 Difference]: Without dead ends: 67 [2024-11-02 23:01:52,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 23:01:52,928 INFO L432 NwaCegarLoop]: 96 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, 96 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 [2024-11-02 23:01:52,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 23:01:52,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-02 23:01:52,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-02 23:01:52,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 63 states have internal predecessors, (89), 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) [2024-11-02 23:01:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions. [2024-11-02 23:01:52,971 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 11 [2024-11-02 23:01:52,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:01:52,971 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 93 transitions. [2024-11-02 23:01:52,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-11-02 23:01:52,972 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2024-11-02 23:01:52,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-02 23:01:52,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:01:52,973 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:01:52,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 23:01:53,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:01:53,174 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:01:53,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:01:53,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1074852024, now seen corresponding path program 1 times [2024-11-02 23:01:53,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:01:53,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483109163] [2024-11-02 23:01:53,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:01:53,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:01:53,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:01:53,178 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:01:53,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 23:01:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:01:53,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 23:01:53,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:01:56,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:01:56,872 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:02:01,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:02:01,216 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:02:01,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483109163] [2024-11-02 23:02:01,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1483109163] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:02:01,217 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:02:01,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2024-11-02 23:02:01,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133714725] [2024-11-02 23:02:01,218 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:02:01,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 23:02:01,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:02:01,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 23:02:01,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-02 23:02:01,220 INFO L87 Difference]: Start difference. First operand 67 states and 93 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 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) [2024-11-02 23:02:05,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-02 23:02:08,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-02 23:02:08,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:02:08,252 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2024-11-02 23:02:08,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 23:02:08,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 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 12 [2024-11-02 23:02:08,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:02:08,255 INFO L225 Difference]: With dead ends: 72 [2024-11-02 23:02:08,255 INFO L226 Difference]: Without dead ends: 14 [2024-11-02 23:02:08,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-02 23:02:08,257 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 28 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-02 23:02:08,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 21 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-02 23:02:08,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-02 23:02:08,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-02 23:02:08,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2024-11-02 23:02:08,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2024-11-02 23:02:08,261 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 12 [2024-11-02 23:02:08,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:02:08,262 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2024-11-02 23:02:08,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 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) [2024-11-02 23:02:08,262 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2024-11-02 23:02:08,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-02 23:02:08,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:02:08,263 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:02:08,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-02 23:02:08,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:02:08,464 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:02:08,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:02:08,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1734315249, now seen corresponding path program 1 times [2024-11-02 23:02:08,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:02:08,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450612823] [2024-11-02 23:02:08,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:02:08,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:02:08,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:02:08,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:02:08,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 23:02:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:02:12,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-02 23:02:12,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:02:16,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:02:16,962 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:02:22,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 23:02:22,156 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:02:22,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450612823] [2024-11-02 23:02:22,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1450612823] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:02:22,157 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:02:22,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2024-11-02 23:02:22,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588215603] [2024-11-02 23:02:22,157 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:02:22,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-02 23:02:22,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:02:22,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-02 23:02:22,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-02 23:02:22,159 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2024-11-02 23:02:26,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:02:26,149 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2024-11-02 23:02:26,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 23:02:26,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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 13 [2024-11-02 23:02:26,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:02:26,150 INFO L225 Difference]: With dead ends: 14 [2024-11-02 23:02:26,150 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 23:02:26,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-02 23:02:26,152 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-02 23:02:26,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-02 23:02:26,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 23:02:26,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 23:02:26,153 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) [2024-11-02 23:02:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 23:02:26,154 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-11-02 23:02:26,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:02:26,154 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 23:02:26,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 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) [2024-11-02 23:02:26,154 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 23:02:26,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 23:02:26,157 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 23:02:26,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 23:02:26,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:02:26,361 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 23:02:26,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 23:02:29,286 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 23:02:29,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:02:29 BoogieIcfgContainer [2024-11-02 23:02:29,307 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 23:02:29,307 INFO L158 Benchmark]: Toolchain (without parser) took 64894.11ms. Allocated memory was 204.5MB in the beginning and 324.0MB in the end (delta: 119.5MB). Free memory was 153.4MB in the beginning and 197.0MB in the end (delta: -43.6MB). Peak memory consumption was 76.6MB. Max. memory is 8.0GB. [2024-11-02 23:02:29,307 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 204.5MB. Free memory is still 158.2MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 23:02:29,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.21ms. Allocated memory is still 204.5MB. Free memory was 153.0MB in the beginning and 133.1MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2024-11-02 23:02:29,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.83ms. Allocated memory is still 204.5MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 23:02:29,308 INFO L158 Benchmark]: Boogie Preprocessor took 103.26ms. Allocated memory is still 204.5MB. Free memory was 131.0MB in the beginning and 126.4MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2024-11-02 23:02:29,309 INFO L158 Benchmark]: RCFGBuilder took 27587.66ms. Allocated memory was 204.5MB in the beginning and 324.0MB in the end (delta: 119.5MB). Free memory was 126.4MB in the beginning and 270.4MB in the end (delta: -143.9MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-02 23:02:29,309 INFO L158 Benchmark]: TraceAbstraction took 36722.73ms. Allocated memory is still 324.0MB. Free memory was 269.8MB in the beginning and 197.0MB in the end (delta: 72.9MB). Peak memory consumption was 72.4MB. Max. memory is 8.0GB. [2024-11-02 23:02:29,311 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 204.5MB. Free memory is still 158.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 413.21ms. Allocated memory is still 204.5MB. Free memory was 153.0MB in the beginning and 133.1MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.83ms. Allocated memory is still 204.5MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 103.26ms. Allocated memory is still 204.5MB. Free memory was 131.0MB in the beginning and 126.4MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 27587.66ms. Allocated memory was 204.5MB in the beginning and 324.0MB in the end (delta: 119.5MB). Free memory was 126.4MB in the beginning and 270.4MB in the end (delta: -143.9MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 36722.73ms. Allocated memory is still 324.0MB. Free memory was 269.8MB in the beginning and 197.0MB in the end (delta: 72.9MB). Peak memory consumption was 72.4MB. 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: 379]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 8.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 8.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 110 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 17.7s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 6 QuantifiedInterpolants, 254 SizeOfPredicates, 7 NumberOfNonLiveVariables, 177 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 222]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 349]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 172]: Procedure Contract for __ieee754_sqrt Derived contract for procedure __ieee754_sqrt. Requires: 0 Ensures: (0 && (((((((((((((((((huge_floor == \old(huge_floor)) && (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! [2024-11-02 23:02:29,523 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 [2024-11-02 23:02:29,648 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 137 Received shutdown request...