/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/float_req_bl_1271a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 23:20:53,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 23:20:53,567 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 23:20:53,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 23:20:53,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 23:20:53,606 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 23:20:53,607 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 23:20:53,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 23:20:53,609 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 23:20:53,610 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 23:20:53,610 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 23:20:53,611 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 23:20:53,611 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 23:20:53,611 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 23:20:53,612 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 23:20:53,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 23:20:53,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 23:20:53,616 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 23:20:53,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 23:20:53,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 23:20:53,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 23:20:53,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 23:20:53,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 23:20:53,617 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 23:20:53,617 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 23:20:53,618 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 23:20:53,618 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 23:20:53,620 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 23:20:53,620 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 23:20:53,620 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 23:20:53,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 23:20:53,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 23:20:53,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 23:20:53,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 23:20:53,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 23:20:53,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 23:20:53,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 23:20:53,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 23:20:53,622 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 23:20:53,622 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 23:20:53,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 23:20:53,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 23:20:53,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 23:20:53,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 23:20:53,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:20:53,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 23:20:53,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 23:20:53,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 23:20:53,862 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 23:20:53,862 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 23:20:53,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c [2024-11-02 23:20:55,195 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 23:20:55,378 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 23:20:55,379 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c [2024-11-02 23:20:55,390 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/396ce91e6/96a5408332754ee29edda8ef25c949bc/FLAG4ff50abf8 [2024-11-02 23:20:55,401 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/396ce91e6/96a5408332754ee29edda8ef25c949bc [2024-11-02 23:20:55,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 23:20:55,404 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 23:20:55,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 23:20:55,406 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 23:20:55,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 23:20:55,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446ab19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55, skipping insertion in model container [2024-11-02 23:20:55,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 23:20:55,648 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c[4883,4896] [2024-11-02 23:20:55,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 23:20:55,666 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 23:20:55,707 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c[4883,4896] [2024-11-02 23:20:55,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 23:20:55,730 INFO L204 MainTranslator]: Completed translation [2024-11-02 23:20:55,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55 WrapperNode [2024-11-02 23:20:55,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 23:20:55,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 23:20:55,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 23:20:55,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 23:20:55,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,773 INFO L138 Inliner]: procedures = 22, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 276 [2024-11-02 23:20:55,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 23:20:55,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 23:20:55,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 23:20:55,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 23:20:55,788 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,797 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,819 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-02 23:20:55,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,835 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 23:20:55,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 23:20:55,866 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 23:20:55,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 23:20:55,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (1/1) ... [2024-11-02 23:20:55,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 23:20:55,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:20:55,891 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 23:20:55,893 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 23:20:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 23:20:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 23:20:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-02 23:20:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-02 23:20:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-02 23:20:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-02 23:20:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-02 23:20:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-02 23:20:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-02 23:20:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-02 23:20:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-02 23:20:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-02 23:20:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-02 23:20:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-02 23:20:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-11-02 23:20:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2024-11-02 23:20:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2024-11-02 23:20:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2024-11-02 23:20:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 23:20:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-02 23:20:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-02 23:20:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-02 23:20:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-02 23:20:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-02 23:20:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-02 23:20:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-02 23:20:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-02 23:20:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-02 23:20:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-02 23:20:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-02 23:20:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-02 23:20:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-11-02 23:20:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2024-11-02 23:20:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2024-11-02 23:20:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2024-11-02 23:20:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2024-11-02 23:20:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-02 23:20:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-02 23:20:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-02 23:20:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-02 23:20:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-02 23:20:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-02 23:20:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-02 23:20:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-02 23:20:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-02 23:20:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-02 23:20:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-02 23:20:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-02 23:20:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-02 23:20:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-11-02 23:20:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2024-11-02 23:20:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2024-11-02 23:20:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2024-11-02 23:20:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 23:20:55,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 23:20:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-02 23:20:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-02 23:20:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-02 23:20:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-02 23:20:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-02 23:20:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-02 23:20:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-02 23:20:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-02 23:20:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-02 23:20:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-02 23:20:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-02 23:20:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-02 23:20:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-11-02 23:20:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2024-11-02 23:20:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2024-11-02 23:20:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2024-11-02 23:20:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2024-11-02 23:20:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-02 23:20:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-02 23:20:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-02 23:20:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-02 23:20:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-02 23:20:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-02 23:20:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-02 23:20:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-02 23:20:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-02 23:20:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-02 23:20:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-02 23:20:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-02 23:20:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-11-02 23:20:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-11-02 23:20:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2024-11-02 23:20:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2024-11-02 23:20:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2024-11-02 23:20:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 23:20:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-02 23:20:55,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-02 23:20:56,134 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 23:20:56,136 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 23:20:57,243 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2024-11-02 23:20:57,243 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 23:20:57,260 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 23:20:57,260 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-02 23:20:57,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:20:57 BoogieIcfgContainer [2024-11-02 23:20:57,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 23:20:57,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 23:20:57,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 23:20:57,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 23:20:57,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:20:55" (1/3) ... [2024-11-02 23:20:57,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d68bf22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:20:57, skipping insertion in model container [2024-11-02 23:20:57,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:55" (2/3) ... [2024-11-02 23:20:57,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d68bf22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:20:57, skipping insertion in model container [2024-11-02 23:20:57,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:20:57" (3/3) ... [2024-11-02 23:20:57,268 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271a.c [2024-11-02 23:20:57,283 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 23:20:57,284 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 23:20:57,342 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 23:20:57,349 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;@3c81dcad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 23:20:57,349 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 23:20:57,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 88 states have internal predecessors, (146), 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 23:20:57,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-02 23:20:57,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:20:57,360 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:20:57,360 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:20:57,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:20:57,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1909357408, now seen corresponding path program 1 times [2024-11-02 23:20:57,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:20:57,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491499175] [2024-11-02 23:20:57,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:20:57,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:20:57,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:20:57,379 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 23:20:57,381 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 23:20:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:20:57,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 23:20:57,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:20:57,561 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 23:20:57,561 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:20:57,570 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 23:20:57,570 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:20:57,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491499175] [2024-11-02 23:20:57,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1491499175] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:20:57,573 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:20:57,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-02 23:20:57,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777809794] [2024-11-02 23:20:57,576 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:20:57,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 23:20:57,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:20:57,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 23:20:57,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 23:20:57,598 INFO L87 Difference]: Start difference. First operand has 92 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 88 states have internal predecessors, (146), 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 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 23:20:57,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:20:57,624 INFO L93 Difference]: Finished difference Result 182 states and 300 transitions. [2024-11-02 23:20:57,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 23:20:57,626 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2024-11-02 23:20:57,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:20:57,631 INFO L225 Difference]: With dead ends: 182 [2024-11-02 23:20:57,631 INFO L226 Difference]: Without dead ends: 88 [2024-11-02 23:20:57,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 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 23:20:57,637 INFO L432 NwaCegarLoop]: 115 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, 115 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 23:20:57,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 23:20:57,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-02 23:20:57,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-02 23:20:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 84 states have internal predecessors, (106), 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 23:20:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 110 transitions. [2024-11-02 23:20:57,678 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 110 transitions. Word has length 18 [2024-11-02 23:20:57,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:20:57,678 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 110 transitions. [2024-11-02 23:20:57,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 23:20:57,679 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 110 transitions. [2024-11-02 23:20:57,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-02 23:20:57,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:20:57,680 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:20:57,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 23:20:57,880 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 23:20:57,881 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:20:57,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:20:57,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1814558905, now seen corresponding path program 1 times [2024-11-02 23:20:57,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:20:57,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27570369] [2024-11-02 23:20:57,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:20:57,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:20:57,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:20:57,884 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 23:20:57,886 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 23:20:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:20:58,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-02 23:20:58,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:20:58,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-02 23:20:58,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-02 23:20:58,737 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 23:20:58,737 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:20:59,562 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 23:20:59,563 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:20:59,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27570369] [2024-11-02 23:20:59,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [27570369] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:20:59,563 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:20:59,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2024-11-02 23:20:59,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719688376] [2024-11-02 23:20:59,564 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:20:59,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-02 23:20:59,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:20:59,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-02 23:20:59,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-02 23:20:59,567 INFO L87 Difference]: Start difference. First operand 88 states and 110 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 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 23:21:00,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:21:00,546 INFO L93 Difference]: Finished difference Result 103 states and 129 transitions. [2024-11-02 23:21:00,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 23:21:00,547 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 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 23 [2024-11-02 23:21:00,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:21:00,548 INFO L225 Difference]: With dead ends: 103 [2024-11-02 23:21:00,548 INFO L226 Difference]: Without dead ends: 37 [2024-11-02 23:21:00,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-02 23:21:00,551 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-02 23:21:00,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 152 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-02 23:21:00,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-02 23:21:00,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2024-11-02 23:21:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 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 23:21:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2024-11-02 23:21:00,557 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2024-11-02 23:21:00,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:21:00,557 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2024-11-02 23:21:00,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 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 23:21:00,558 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2024-11-02 23:21:00,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-02 23:21:00,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:21:00,561 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:21:00,581 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 23:21:00,764 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 23:21:00,765 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:21:00,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:21:00,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1421531895, now seen corresponding path program 1 times [2024-11-02 23:21:00,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:21:00,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407200833] [2024-11-02 23:21:00,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:21:00,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:21:00,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:21:00,768 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 23:21:00,768 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 23:21:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:21:00,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-02 23:21:00,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:21:02,204 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 23:21:02,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:21:04,220 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 23:21:04,220 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:21:04,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407200833] [2024-11-02 23:21:04,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1407200833] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:21:04,221 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:21:04,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 18 [2024-11-02 23:21:04,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841735013] [2024-11-02 23:21:04,221 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:21:04,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-02 23:21:04,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:21:04,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-02 23:21:04,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-02 23:21:04,224 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 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 23:21:05,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:21:05,143 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2024-11-02 23:21:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-02 23:21:05,143 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 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 23 [2024-11-02 23:21:05,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:21:05,144 INFO L225 Difference]: With dead ends: 39 [2024-11-02 23:21:05,144 INFO L226 Difference]: Without dead ends: 34 [2024-11-02 23:21:05,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-02 23:21:05,158 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 27 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-02 23:21:05,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 186 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-02 23:21:05,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-02 23:21:05,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2024-11-02 23:21:05,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 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 23:21:05,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2024-11-02 23:21:05,163 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 23 [2024-11-02 23:21:05,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:21:05,164 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2024-11-02 23:21:05,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 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 23:21:05,164 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2024-11-02 23:21:05,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-02 23:21:05,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:21:05,165 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:21:05,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-02 23:21:05,365 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 23:21:05,366 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:21:05,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:21:05,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1642693520, now seen corresponding path program 1 times [2024-11-02 23:21:05,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:21:05,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894494103] [2024-11-02 23:21:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:21:05,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:21:05,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:21:05,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:21:05,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 23:21:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:21:05,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-02 23:21:05,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:21:05,977 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 23:21:05,977 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:21:06,236 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 23:21:06,237 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:21:06,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894494103] [2024-11-02 23:21:06,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1894494103] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:21:06,237 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:21:06,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2024-11-02 23:21:06,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937579604] [2024-11-02 23:21:06,238 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:21:06,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-02 23:21:06,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:21:06,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-02 23:21:06,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-02 23:21:06,239 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 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 23:21:06,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:21:06,687 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2024-11-02 23:21:06,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-02 23:21:06,689 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 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 28 [2024-11-02 23:21:06,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:21:06,690 INFO L225 Difference]: With dead ends: 44 [2024-11-02 23:21:06,690 INFO L226 Difference]: Without dead ends: 38 [2024-11-02 23:21:06,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-02 23:21:06,691 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 27 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 23:21:06,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 92 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 23:21:06,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-02 23:21:06,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-02 23:21:06,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.054054054054054) internal successors, (39), 37 states have internal predecessors, (39), 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 23:21:06,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2024-11-02 23:21:06,698 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 28 [2024-11-02 23:21:06,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:21:06,698 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2024-11-02 23:21:06,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 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 23:21:06,698 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2024-11-02 23:21:06,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-02 23:21:06,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:21:06,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:21:06,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-02 23:21:06,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:21:06,900 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:21:06,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:21:06,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1585435218, now seen corresponding path program 1 times [2024-11-02 23:21:06,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:21:06,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655123033] [2024-11-02 23:21:06,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:21:06,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:21:06,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:21:06,902 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:21:06,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 23:21:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:21:07,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-02 23:21:07,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:21:07,825 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 23:21:07,825 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:21:08,541 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 23:21:08,541 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:21:08,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655123033] [2024-11-02 23:21:08,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1655123033] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:21:08,541 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:21:08,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2024-11-02 23:21:08,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052793466] [2024-11-02 23:21:08,542 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:21:08,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-02 23:21:08,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:21:08,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-02 23:21:08,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-02 23:21:08,543 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 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 23:21:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:21:09,525 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2024-11-02 23:21:09,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-02 23:21:09,525 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 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 28 [2024-11-02 23:21:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:21:09,526 INFO L225 Difference]: With dead ends: 44 [2024-11-02 23:21:09,526 INFO L226 Difference]: Without dead ends: 29 [2024-11-02 23:21:09,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2024-11-02 23:21:09,527 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-02 23:21:09,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 212 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-02 23:21:09,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-02 23:21:09,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-02 23:21:09,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0) internal successors, (28), 28 states have internal predecessors, (28), 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 23:21:09,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2024-11-02 23:21:09,533 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 28 [2024-11-02 23:21:09,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:21:09,533 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2024-11-02 23:21:09,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 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 23:21:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2024-11-02 23:21:09,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-02 23:21:09,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 23:21:09,536 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 23:21:09,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-02 23:21:09,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:21:09,740 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 23:21:09,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 23:21:09,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1429668400, now seen corresponding path program 1 times [2024-11-02 23:21:09,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 23:21:09,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547671580] [2024-11-02 23:21:09,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 23:21:09,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:21:09,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 23:21:09,742 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 23:21:09,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 23:21:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 23:21:09,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-02 23:21:09,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 23:21:11,920 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 23:21:11,920 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 23:21:15,198 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 23:21:15,199 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 23:21:15,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547671580] [2024-11-02 23:21:15,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [547671580] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 23:21:15,199 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 23:21:15,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 9] imperfect sequences [] total 20 [2024-11-02 23:21:15,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731125697] [2024-11-02 23:21:15,199 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 23:21:15,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-02 23:21:15,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 23:21:15,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-02 23:21:15,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2024-11-02 23:21:15,201 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 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 23:21:21,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 23:21:21,163 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2024-11-02 23:21:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-02 23:21:21,164 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 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 28 [2024-11-02 23:21:21,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 23:21:21,164 INFO L225 Difference]: With dead ends: 29 [2024-11-02 23:21:21,164 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 23:21:21,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2024-11-02 23:21:21,166 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 9 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-02 23:21:21,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 126 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-02 23:21:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 23:21:21,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 23:21:21,167 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 23:21:21,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 23:21:21,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2024-11-02 23:21:21,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 23:21:21,167 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 23:21:21,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 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 23:21:21,167 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 23:21:21,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 23:21:21,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 23:21:21,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-02 23:21:21,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 23:21:21,374 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-02 23:21:21,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 23:21:22,388 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 23:21:22,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:21:22 BoogieIcfgContainer [2024-11-02 23:21:22,407 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 23:21:22,407 INFO L158 Benchmark]: Toolchain (without parser) took 27003.26ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 137.2MB in the beginning and 169.0MB in the end (delta: -31.7MB). Peak memory consumption was 105.3MB. Max. memory is 8.0GB. [2024-11-02 23:21:22,407 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 182.5MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 23:21:22,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.35ms. Allocated memory is still 182.5MB. Free memory was 137.2MB in the beginning and 120.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-02 23:21:22,408 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.96ms. Allocated memory is still 182.5MB. Free memory was 120.1MB in the beginning and 117.7MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-02 23:21:22,408 INFO L158 Benchmark]: Boogie Preprocessor took 90.36ms. Allocated memory is still 182.5MB. Free memory was 117.7MB in the beginning and 112.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-02 23:21:22,408 INFO L158 Benchmark]: RCFGBuilder took 1394.82ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 112.8MB in the beginning and 274.8MB in the end (delta: -162.0MB). Peak memory consumption was 26.7MB. Max. memory is 8.0GB. [2024-11-02 23:21:22,409 INFO L158 Benchmark]: TraceAbstraction took 25143.61ms. Allocated memory is still 318.8MB. Free memory was 273.7MB in the beginning and 169.0MB in the end (delta: 104.8MB). Peak memory consumption was 104.8MB. Max. memory is 8.0GB. [2024-11-02 23:21:22,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 182.5MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 326.35ms. Allocated memory is still 182.5MB. Free memory was 137.2MB in the beginning and 120.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.96ms. Allocated memory is still 182.5MB. Free memory was 120.1MB in the beginning and 117.7MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 90.36ms. Allocated memory is still 182.5MB. Free memory was 117.7MB in the beginning and 112.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1394.82ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 112.8MB in the beginning and 274.8MB in the end (delta: -162.0MB). Peak memory consumption was 26.7MB. Max. memory is 8.0GB. * TraceAbstraction took 25143.61ms. Allocated memory is still 318.8MB. Free memory was 273.7MB in the beginning and 169.0MB in the end (delta: 104.8MB). Peak memory consumption was 104.8MB. 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: 241]: 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, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 883 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 679 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 666 IncrementalHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 204 mSDtfsCounter, 666 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 208 SyntacticMatches, 6 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 6 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 13.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 61, 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, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 284 ConstructedInterpolants, 112 QuantifiedInterpolants, 2748 SizeOfPredicates, 28 NumberOfNonLiveVariables, 603 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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: 109]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 16]: Procedure Contract for __ieee754_sqrtf Derived contract for procedure __ieee754_sqrtf. Requires: 0 Ensures: (0 && ((one_sqrt == \old(one_sqrt)) && (tiny_sqrt == \old(tiny_sqrt)))) RESULT: Ultimate proved your program to be correct! [2024-11-02 23:21:22,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...