/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 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0680b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 02:30:26,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 02:30:26,908 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 02:30:26,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 02:30:26,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 02:30:26,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 02:30:26,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 02:30:26,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 02:30:26,926 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 02:30:26,927 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 02:30:26,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 02:30:26,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 02:30:26,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 02:30:26,928 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 02:30:26,928 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 02:30:26,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 02:30:26,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 02:30:26,929 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 02:30:26,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 02:30:26,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 02:30:26,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 02:30:26,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 02:30:26,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 02:30:26,931 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 02:30:26,931 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 02:30:26,931 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 02:30:26,931 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 02:30:26,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 02:30:26,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 02:30:26,932 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 02:30:26,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 02:30:26,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 02:30:26,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 02:30:26,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 02:30:26,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 02:30:26,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 02:30:26,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 02:30:26,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 02:30:26,939 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 02:30:26,939 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 02:30:26,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 02:30:26,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 02:30:26,941 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 02:30:26,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 02:30:26,942 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-03 02:30:27,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 02:30:27,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 02:30:27,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 02:30:27,178 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 02:30:27,178 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 02:30:27,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0680b.c [2024-11-03 02:30:28,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 02:30:28,788 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 02:30:28,789 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0680b.c [2024-11-03 02:30:28,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c5072c4/da4a66095a9d4091a522259852a648c0/FLAGe5352be5f [2024-11-03 02:30:28,835 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c5072c4/da4a66095a9d4091a522259852a648c0 [2024-11-03 02:30:28,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 02:30:28,838 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 02:30:28,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 02:30:28,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 02:30:28,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 02:30:28,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:30:28" (1/1) ... [2024-11-03 02:30:28,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1caf4fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:28, skipping insertion in model container [2024-11-03 02:30:28,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:30:28" (1/1) ... [2024-11-03 02:30:28,885 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 02:30:29,128 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_0680b.c[6162,6175] [2024-11-03 02:30:29,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 02:30:29,163 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 02:30:29,243 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_0680b.c[6162,6175] [2024-11-03 02:30:29,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 02:30:29,301 INFO L204 MainTranslator]: Completed translation [2024-11-03 02:30:29,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29 WrapperNode [2024-11-03 02:30:29,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 02:30:29,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 02:30:29,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 02:30:29,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 02:30:29,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,395 INFO L138 Inliner]: procedures = 23, calls = 87, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225 [2024-11-03 02:30:29,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 02:30:29,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 02:30:29,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 02:30:29,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 02:30:29,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,477 INFO L175 MemorySlicer]: Split 59 memory accesses to 12 slices as follows [2, 7, 3, 7, 23, 2, 3, 2, 2, 3, 3, 2]. 39 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 4, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0]. The 22 writes are split as follows [0, 0, 2, 0, 12, 1, 2, 1, 1, 1, 1, 1]. [2024-11-03 02:30:29,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,559 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 02:30:29,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 02:30:29,560 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 02:30:29,560 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 02:30:29,561 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (1/1) ... [2024-11-03 02:30:29,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 02:30:29,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 02:30:29,595 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) [2024-11-03 02:30:29,601 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 [2024-11-03 02:30:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 02:30:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-03 02:30:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-03 02:30:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-03 02:30:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-03 02:30:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-03 02:30:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2024-11-03 02:30:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2024-11-03 02:30:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2024-11-03 02:30:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2024-11-03 02:30:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9 [2024-11-03 02:30:29,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#10 [2024-11-03 02:30:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#11 [2024-11-03 02:30:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-11-03 02:30:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-11-03 02:30:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#2 [2024-11-03 02:30:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#3 [2024-11-03 02:30:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#4 [2024-11-03 02:30:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#5 [2024-11-03 02:30:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#6 [2024-11-03 02:30:29,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#7 [2024-11-03 02:30:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#8 [2024-11-03 02:30:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#9 [2024-11-03 02:30:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#10 [2024-11-03 02:30:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#11 [2024-11-03 02:30:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-03 02:30:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-03 02:30:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-03 02:30:29,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-03 02:30:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-03 02:30:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2024-11-03 02:30:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2024-11-03 02:30:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2024-11-03 02:30:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2024-11-03 02:30:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9 [2024-11-03 02:30:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#10 [2024-11-03 02:30:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#11 [2024-11-03 02:30:29,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 02:30:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 02:30:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-03 02:30:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-03 02:30:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-03 02:30:29,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-03 02:30:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-03 02:30:29,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-03 02:30:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-03 02:30:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-03 02:30:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-03 02:30:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-03 02:30:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 02:30:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2024-11-03 02:30:29,634 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2024-11-03 02:30:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-03 02:30:29,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-03 02:30:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2024-11-03 02:30:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2024-11-03 02:30:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2024-11-03 02:30:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2024-11-03 02:30:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2024-11-03 02:30:29,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2024-11-03 02:30:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2024-11-03 02:30:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9 [2024-11-03 02:30:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#10 [2024-11-03 02:30:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#11 [2024-11-03 02:30:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2024-11-03 02:30:29,636 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2024-11-03 02:30:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 02:30:29,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 02:30:29,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-03 02:30:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-03 02:30:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-03 02:30:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-03 02:30:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-03 02:30:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-03 02:30:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-03 02:30:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-03 02:30:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-03 02:30:29,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-03 02:30:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 02:30:29,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 02:30:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-03 02:30:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-03 02:30:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-03 02:30:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-03 02:30:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-03 02:30:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-03 02:30:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-03 02:30:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-03 02:30:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-03 02:30:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-03 02:30:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-03 02:30:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-03 02:30:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 02:30:29,811 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 02:30:29,813 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 02:31:15,865 INFO L? ?]: Removed 85 outVars from TransFormulas that were not future-live. [2024-11-03 02:31:15,866 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 02:31:15,881 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 02:31:15,881 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-03 02:31:15,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:31:15 BoogieIcfgContainer [2024-11-03 02:31:15,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 02:31:15,886 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 02:31:15,886 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 02:31:15,888 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 02:31:15,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:30:28" (1/3) ... [2024-11-03 02:31:15,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580aa120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:31:15, skipping insertion in model container [2024-11-03 02:31:15,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:30:29" (2/3) ... [2024-11-03 02:31:15,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580aa120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:31:15, skipping insertion in model container [2024-11-03 02:31:15,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:31:15" (3/3) ... [2024-11-03 02:31:15,890 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680b.c [2024-11-03 02:31:15,901 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 02:31:15,901 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 02:31:15,954 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 02:31:15,962 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;@1bda122d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 02:31:15,962 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 02:31:15,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 78 states have (on average 1.6794871794871795) internal successors, (131), 79 states have internal predecessors, (131), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-03 02:31:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-03 02:31:15,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 02:31:15,974 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 02:31:15,975 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 02:31:15,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 02:31:15,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1416917136, now seen corresponding path program 1 times [2024-11-03 02:31:15,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 02:31:15,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140839216] [2024-11-03 02:31:15,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 02:31:15,991 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 02:31:15,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 02:31:15,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 02:31:16,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 02:31:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 02:31:16,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 02:31:16,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 02:31:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:31:16,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 02:31:16,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:31:16,960 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 02:31:16,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140839216] [2024-11-03 02:31:16,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [140839216] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 02:31:16,961 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 02:31:16,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 02:31:16,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836598492] [2024-11-03 02:31:16,962 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 02:31:16,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 02:31:16,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 02:31:16,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 02:31:16,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 02:31:16,990 INFO L87 Difference]: Start difference. First operand has 86 states, 78 states have (on average 1.6794871794871795) internal successors, (131), 79 states have internal predecessors, (131), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2024-11-03 02:31:17,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 02:31:17,013 INFO L93 Difference]: Finished difference Result 170 states and 280 transitions. [2024-11-03 02:31:17,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 02:31:17,015 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 [2024-11-03 02:31:17,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 02:31:17,020 INFO L225 Difference]: With dead ends: 170 [2024-11-03 02:31:17,021 INFO L226 Difference]: Without dead ends: 83 [2024-11-03 02:31:17,023 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 [2024-11-03 02:31:17,026 INFO L432 NwaCegarLoop]: 122 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, 122 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 [2024-11-03 02:31:17,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 02:31:17,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-03 02:31:17,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-03 02:31:17,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-03 02:31:17,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 119 transitions. [2024-11-03 02:31:17,055 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 119 transitions. Word has length 10 [2024-11-03 02:31:17,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 02:31:17,056 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 119 transitions. [2024-11-03 02:31:17,056 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) [2024-11-03 02:31:17,056 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 119 transitions. [2024-11-03 02:31:17,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-03 02:31:17,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 02:31:17,057 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 02:31:17,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-03 02:31:17,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 02:31:17,260 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 02:31:17,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 02:31:17,260 INFO L85 PathProgramCache]: Analyzing trace with hash 194980505, now seen corresponding path program 1 times [2024-11-03 02:31:17,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 02:31:17,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446589655] [2024-11-03 02:31:17,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 02:31:17,261 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 02:31:17,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 02:31:17,264 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 02:31:17,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 02:31:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 02:31:19,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-03 02:31:19,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 02:31:25,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:31:25,962 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 02:31:38,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:31:38,289 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 02:31:38,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446589655] [2024-11-03 02:31:38,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1446589655] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 02:31:38,291 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 02:31:38,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2024-11-03 02:31:38,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433293505] [2024-11-03 02:31:38,291 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 02:31:38,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 02:31:38,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 02:31:38,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 02:31:38,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-03 02:31:38,298 INFO L87 Difference]: Start difference. First operand 83 states and 119 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2024-11-03 02:31:51,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 02:31:51,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 02:31:51,459 INFO L93 Difference]: Finished difference Result 148 states and 205 transitions. [2024-11-03 02:31:51,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 02:31:51,469 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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 [2024-11-03 02:31:51,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 02:31:51,470 INFO L225 Difference]: With dead ends: 148 [2024-11-03 02:31:51,470 INFO L226 Difference]: Without dead ends: 84 [2024-11-03 02:31:51,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-03 02:31:51,471 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 198 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-03 02:31:51,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 481 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-03 02:31:51,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-03 02:31:51,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 70. [2024-11-03 02:31:51,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 64 states have (on average 1.34375) internal successors, (86), 64 states have internal predecessors, (86), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-03 02:31:51,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 92 transitions. [2024-11-03 02:31:51,491 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 92 transitions. Word has length 12 [2024-11-03 02:31:51,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 02:31:51,491 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 92 transitions. [2024-11-03 02:31:51,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2024-11-03 02:31:51,491 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 92 transitions. [2024-11-03 02:31:51,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-03 02:31:51,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 02:31:51,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 02:31:51,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 02:31:51,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 02:31:51,693 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 02:31:51,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 02:31:51,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1034986538, now seen corresponding path program 1 times [2024-11-03 02:31:51,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 02:31:51,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259164063] [2024-11-03 02:31:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 02:31:51,695 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 02:31:51,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 02:31:51,701 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 02:31:51,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 02:31:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 02:31:54,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-03 02:31:54,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 02:31:58,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:31:58,423 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 02:32:02,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:32:02,134 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 02:32:02,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259164063] [2024-11-03 02:32:02,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1259164063] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 02:32:02,134 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 02:32:02,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2024-11-03 02:32:02,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759967890] [2024-11-03 02:32:02,135 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 02:32:02,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 02:32:02,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 02:32:02,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 02:32:02,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-03 02:32:02,136 INFO L87 Difference]: Start difference. First operand 70 states and 92 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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) [2024-11-03 02:32:05,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 02:32:05,996 INFO L93 Difference]: Finished difference Result 124 states and 163 transitions. [2024-11-03 02:32:05,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 02:32:05,997 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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 [2024-11-03 02:32:05,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 02:32:05,998 INFO L225 Difference]: With dead ends: 124 [2024-11-03 02:32:05,998 INFO L226 Difference]: Without dead ends: 71 [2024-11-03 02:32:05,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-03 02:32:05,999 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 84 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-03 02:32:05,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 293 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-03 02:32:06,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-03 02:32:06,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2024-11-03 02:32:06,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 64 states have (on average 1.328125) internal successors, (85), 64 states have internal predecessors, (85), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-03 02:32:06,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 91 transitions. [2024-11-03 02:32:06,015 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 91 transitions. Word has length 15 [2024-11-03 02:32:06,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 02:32:06,015 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 91 transitions. [2024-11-03 02:32:06,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 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) [2024-11-03 02:32:06,016 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 91 transitions. [2024-11-03 02:32:06,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-03 02:32:06,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 02:32:06,016 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 02:32:06,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 02:32:06,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 02:32:06,217 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 02:32:06,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 02:32:06,217 INFO L85 PathProgramCache]: Analyzing trace with hash -704934156, now seen corresponding path program 1 times [2024-11-03 02:32:06,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 02:32:06,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359638246] [2024-11-03 02:32:06,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 02:32:06,218 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 02:32:06,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 02:32:06,225 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 02:32:06,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 02:32:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 02:32:08,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 02:32:08,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 02:32:12,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:32:12,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 02:32:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 02:32:17,309 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 02:32:17,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359638246] [2024-11-03 02:32:17,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [359638246] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 02:32:17,309 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 02:32:17,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2024-11-03 02:32:17,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41505649] [2024-11-03 02:32:17,309 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 02:32:17,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 02:32:17,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 02:32:17,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 02:32:17,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-03 02:32:17,311 INFO L87 Difference]: Start difference. First operand 70 states and 91 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 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)