/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-86.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 15:43:36,888 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 15:43:36,942 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 15:43:36,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 15:43:36,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 15:43:36,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 15:43:36,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 15:43:36,979 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 15:43:36,980 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 15:43:36,983 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 15:43:36,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 15:43:36,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 15:43:36,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 15:43:36,985 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 15:43:36,985 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 15:43:36,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 15:43:36,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 15:43:36,986 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 15:43:36,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 15:43:36,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 15:43:36,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 15:43:36,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 15:43:36,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 15:43:36,987 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 15:43:36,987 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 15:43:36,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 15:43:36,987 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 15:43:36,988 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 15:43:36,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 15:43:36,988 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 15:43:36,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 15:43:36,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 15:43:36,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 15:43:36,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 15:43:36,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 15:43:36,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 15:43:36,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 15:43:36,989 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 15:43:36,990 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 15:43:36,990 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 15:43:36,990 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 15:43:36,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 15:43:36,990 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 15:43:36,990 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 15:43:36,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 15:43:36,991 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 15:43:36,991 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 15:43:37,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 15:43:37,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 15:43:37,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 15:43:37,216 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 15:43:37,217 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 15:43:37,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-86.i [2023-12-24 15:43:38,261 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 15:43:38,451 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 15:43:38,451 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-86.i [2023-12-24 15:43:38,472 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/343a0cdd3/86d77380d0d8411eae54cee138163495/FLAGae2583b19 [2023-12-24 15:43:38,483 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/343a0cdd3/86d77380d0d8411eae54cee138163495 [2023-12-24 15:43:38,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 15:43:38,486 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 15:43:38,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 15:43:38,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 15:43:38,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 15:43:38,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7580738d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38, skipping insertion in model container [2023-12-24 15:43:38,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,540 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 15:43:38,662 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-86.i[917,930] [2023-12-24 15:43:38,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 15:43:38,766 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 15:43:38,777 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-86.i[917,930] [2023-12-24 15:43:38,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 15:43:38,847 INFO L206 MainTranslator]: Completed translation [2023-12-24 15:43:38,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38 WrapperNode [2023-12-24 15:43:38,847 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 15:43:38,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 15:43:38,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 15:43:38,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 15:43:38,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,904 INFO L138 Inliner]: procedures = 36, calls = 247, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 770 [2023-12-24 15:43:38,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 15:43:38,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 15:43:38,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 15:43:38,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 15:43:38,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,920 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,960 INFO L175 MemorySlicer]: Split 206 memory accesses to 6 slices as follows [2, 14, 27, 43, 5, 115]. 56 percent of accesses are in the largest equivalence class. The 20 initializations are split as follows [2, 2, 4, 5, 1, 6]. The 21 writes are split as follows [0, 2, 4, 6, 1, 8]. [2023-12-24 15:43:38,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:38,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:39,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 15:43:39,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 15:43:39,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 15:43:39,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 15:43:39,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (1/1) ... [2023-12-24 15:43:39,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 15:43:39,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 15:43:39,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-24 15:43:39,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-24 15:43:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 15:43:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-24 15:43:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-24 15:43:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-24 15:43:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-24 15:43:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-24 15:43:39,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-24 15:43:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-24 15:43:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-24 15:43:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2023-12-24 15:43:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2023-12-24 15:43:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2023-12-24 15:43:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2023-12-24 15:43:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 15:43:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-24 15:43:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-24 15:43:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-24 15:43:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-12-24 15:43:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2023-12-24 15:43:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2023-12-24 15:43:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 15:43:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 15:43:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2023-12-24 15:43:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2023-12-24 15:43:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2023-12-24 15:43:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-24 15:43:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-24 15:43:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-24 15:43:39,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-24 15:43:39,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-24 15:43:39,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-24 15:43:39,241 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 15:43:39,242 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 15:43:40,292 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 15:43:40,341 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 15:43:40,341 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 15:43:40,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:43:40 BoogieIcfgContainer [2023-12-24 15:43:40,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 15:43:40,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 15:43:40,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 15:43:40,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 15:43:40,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 03:43:38" (1/3) ... [2023-12-24 15:43:40,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a812cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:43:40, skipping insertion in model container [2023-12-24 15:43:40,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:43:38" (2/3) ... [2023-12-24 15:43:40,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a812cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:43:40, skipping insertion in model container [2023-12-24 15:43:40,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:43:40" (3/3) ... [2023-12-24 15:43:40,349 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-86.i [2023-12-24 15:43:40,364 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 15:43:40,364 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 15:43:40,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 15:43:40,405 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8625fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 15:43:40,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 15:43:40,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 120 states have (on average 1.4583333333333333) internal successors, (175), 121 states have internal predecessors, (175), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-24 15:43:40,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-24 15:43:40,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:43:40,424 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:43:40,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:43:40,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:43:40,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2131795121, now seen corresponding path program 1 times [2023-12-24 15:43:40,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:43:40,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89693681] [2023-12-24 15:43:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:43:40,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:40,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:43:40,472 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 15:43:40,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 15:43:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:43:40,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 15:43:40,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:43:40,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2023-12-24 15:43:40,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:43:40,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:43:40,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89693681] [2023-12-24 15:43:40,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89693681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:43:40,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:43:40,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 15:43:40,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962251672] [2023-12-24 15:43:40,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:43:40,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 15:43:40,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:43:40,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 15:43:40,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 15:43:40,996 INFO L87 Difference]: Start difference. First operand has 148 states, 120 states have (on average 1.4583333333333333) internal successors, (175), 121 states have internal predecessors, (175), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-24 15:43:41,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:43:41,071 INFO L93 Difference]: Finished difference Result 293 states and 473 transitions. [2023-12-24 15:43:41,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 15:43:41,075 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 179 [2023-12-24 15:43:41,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:43:41,080 INFO L225 Difference]: With dead ends: 293 [2023-12-24 15:43:41,080 INFO L226 Difference]: Without dead ends: 146 [2023-12-24 15:43:41,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 15:43:41,086 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 15:43:41,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 15:43:41,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-12-24 15:43:41,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2023-12-24 15:43:41,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 119 states have (on average 1.4285714285714286) internal successors, (170), 119 states have internal predecessors, (170), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-24 15:43:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 220 transitions. [2023-12-24 15:43:41,140 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 220 transitions. Word has length 179 [2023-12-24 15:43:41,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:43:41,141 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 220 transitions. [2023-12-24 15:43:41,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-24 15:43:41,141 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 220 transitions. [2023-12-24 15:43:41,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-24 15:43:41,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:43:41,144 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:43:41,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-24 15:43:41,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:41,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:43:41,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:43:41,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1281308179, now seen corresponding path program 1 times [2023-12-24 15:43:41,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:43:41,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095746486] [2023-12-24 15:43:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:43:41,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:41,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:43:41,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 15:43:41,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 15:43:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:43:41,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 15:43:41,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:43:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2023-12-24 15:43:41,800 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:43:41,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:43:41,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095746486] [2023-12-24 15:43:41,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095746486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:43:41,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:43:41,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 15:43:41,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651738573] [2023-12-24 15:43:41,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:43:41,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 15:43:41,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:43:41,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 15:43:41,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 15:43:41,806 INFO L87 Difference]: Start difference. First operand 146 states and 220 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-24 15:43:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:43:41,895 INFO L93 Difference]: Finished difference Result 297 states and 448 transitions. [2023-12-24 15:43:41,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 15:43:41,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 179 [2023-12-24 15:43:41,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:43:41,899 INFO L225 Difference]: With dead ends: 297 [2023-12-24 15:43:41,899 INFO L226 Difference]: Without dead ends: 152 [2023-12-24 15:43:41,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 15:43:41,901 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 10 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 15:43:41,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 640 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 15:43:41,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-24 15:43:41,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 148. [2023-12-24 15:43:41,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 121 states have (on average 1.421487603305785) internal successors, (172), 121 states have internal predecessors, (172), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-24 15:43:41,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2023-12-24 15:43:41,916 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 179 [2023-12-24 15:43:41,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:43:41,916 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2023-12-24 15:43:41,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-24 15:43:41,917 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2023-12-24 15:43:41,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-24 15:43:41,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:43:41,919 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:43:41,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 15:43:42,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:42,120 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:43:42,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:43:42,120 INFO L85 PathProgramCache]: Analyzing trace with hash -117645423, now seen corresponding path program 1 times [2023-12-24 15:43:42,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:43:42,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231929451] [2023-12-24 15:43:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:43:42,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:42,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:43:42,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 15:43:42,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-24 15:43:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:43:42,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 15:43:42,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:43:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 21 proven. 327 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2023-12-24 15:43:42,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 15:43:43,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-24 15:43:43,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:43:43,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231929451] [2023-12-24 15:43:43,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231929451] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 15:43:43,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 15:43:43,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-12-24 15:43:43,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678204474] [2023-12-24 15:43:43,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:43:43,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 15:43:43,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:43:43,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 15:43:43,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-24 15:43:43,082 INFO L87 Difference]: Start difference. First operand 148 states and 222 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-24 15:43:43,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:43:43,160 INFO L93 Difference]: Finished difference Result 368 states and 555 transitions. [2023-12-24 15:43:43,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 15:43:43,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 179 [2023-12-24 15:43:43,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:43:43,162 INFO L225 Difference]: With dead ends: 368 [2023-12-24 15:43:43,162 INFO L226 Difference]: Without dead ends: 221 [2023-12-24 15:43:43,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-24 15:43:43,164 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 216 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 15:43:43,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 621 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 15:43:43,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-24 15:43:43,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 152. [2023-12-24 15:43:43,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 125 states have (on average 1.416) internal successors, (177), 125 states have internal predecessors, (177), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-24 15:43:43,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 227 transitions. [2023-12-24 15:43:43,172 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 227 transitions. Word has length 179 [2023-12-24 15:43:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:43:43,173 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 227 transitions. [2023-12-24 15:43:43,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-24 15:43:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 227 transitions. [2023-12-24 15:43:43,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-24 15:43:43,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:43:43,175 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:43:43,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-24 15:43:43,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:43,387 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:43:43,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:43:43,388 INFO L85 PathProgramCache]: Analyzing trace with hash 893471827, now seen corresponding path program 1 times [2023-12-24 15:43:43,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:43:43,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340176200] [2023-12-24 15:43:43,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:43:43,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:43,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:43:43,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 15:43:43,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 15:43:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:43:43,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 15:43:43,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:43:43,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-24 15:43:43,764 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:43:43,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:43:43,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340176200] [2023-12-24 15:43:43,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340176200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:43:43,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:43:43,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 15:43:43,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637802978] [2023-12-24 15:43:43,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:43:43,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 15:43:43,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:43:43,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 15:43:43,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 15:43:43,766 INFO L87 Difference]: Start difference. First operand 152 states and 227 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-24 15:43:43,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:43:43,829 INFO L93 Difference]: Finished difference Result 312 states and 465 transitions. [2023-12-24 15:43:43,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 15:43:43,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 179 [2023-12-24 15:43:43,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:43:43,831 INFO L225 Difference]: With dead ends: 312 [2023-12-24 15:43:43,831 INFO L226 Difference]: Without dead ends: 161 [2023-12-24 15:43:43,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-24 15:43:43,832 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 10 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 15:43:43,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 840 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 15:43:43,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-24 15:43:43,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 156. [2023-12-24 15:43:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 129 states have (on average 1.4031007751937985) internal successors, (181), 129 states have internal predecessors, (181), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-24 15:43:43,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 231 transitions. [2023-12-24 15:43:43,839 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 231 transitions. Word has length 179 [2023-12-24 15:43:43,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:43:43,840 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 231 transitions. [2023-12-24 15:43:43,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-24 15:43:43,840 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 231 transitions. [2023-12-24 15:43:43,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-24 15:43:43,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:43:43,841 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:43:43,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-24 15:43:44,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:44,054 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:43:44,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:43:44,054 INFO L85 PathProgramCache]: Analyzing trace with hash 893531409, now seen corresponding path program 1 times [2023-12-24 15:43:44,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:43:44,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347679806] [2023-12-24 15:43:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:43:44,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:44,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:43:44,056 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 15:43:44,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 15:43:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:43:44,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 15:43:44,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:43:44,528 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 77 treesize of output 41 [2023-12-24 15:43:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2023-12-24 15:43:44,583 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:43:44,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:43:44,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347679806] [2023-12-24 15:43:44,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347679806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:43:44,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:43:44,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 15:43:44,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342965856] [2023-12-24 15:43:44,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:43:44,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 15:43:44,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:43:44,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 15:43:44,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 15:43:44,585 INFO L87 Difference]: Start difference. First operand 156 states and 231 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-24 15:43:45,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:43:45,519 INFO L93 Difference]: Finished difference Result 317 states and 470 transitions. [2023-12-24 15:43:45,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 15:43:45,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 179 [2023-12-24 15:43:45,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:43:45,520 INFO L225 Difference]: With dead ends: 317 [2023-12-24 15:43:45,520 INFO L226 Difference]: Without dead ends: 162 [2023-12-24 15:43:45,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 15:43:45,521 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 215 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-24 15:43:45,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 750 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-24 15:43:45,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-24 15:43:45,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2023-12-24 15:43:45,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 129 states have (on average 1.3953488372093024) internal successors, (180), 129 states have internal predecessors, (180), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-24 15:43:45,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 230 transitions. [2023-12-24 15:43:45,529 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 230 transitions. Word has length 179 [2023-12-24 15:43:45,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:43:45,530 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 230 transitions. [2023-12-24 15:43:45,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-24 15:43:45,530 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 230 transitions. [2023-12-24 15:43:45,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-24 15:43:45,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:43:45,531 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:43:45,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-24 15:43:45,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:45,732 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:43:45,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:43:45,733 INFO L85 PathProgramCache]: Analyzing trace with hash -200548843, now seen corresponding path program 1 times [2023-12-24 15:43:45,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:43:45,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571668402] [2023-12-24 15:43:45,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:43:45,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:45,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:43:45,734 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 15:43:45,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 15:43:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:43:46,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 15:43:46,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:43:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 412 proven. 0 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2023-12-24 15:43:46,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:43:46,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:43:46,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571668402] [2023-12-24 15:43:46,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571668402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:43:46,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:43:46,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 15:43:46,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408364403] [2023-12-24 15:43:46,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:43:46,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 15:43:46,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:43:46,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 15:43:46,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-24 15:43:46,165 INFO L87 Difference]: Start difference. First operand 156 states and 230 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-24 15:43:46,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:43:46,339 INFO L93 Difference]: Finished difference Result 315 states and 464 transitions. [2023-12-24 15:43:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 15:43:46,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) Word has length 181 [2023-12-24 15:43:46,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:43:46,340 INFO L225 Difference]: With dead ends: 315 [2023-12-24 15:43:46,341 INFO L226 Difference]: Without dead ends: 158 [2023-12-24 15:43:46,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-24 15:43:46,341 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 7 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 15:43:46,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 874 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 15:43:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-24 15:43:46,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2023-12-24 15:43:46,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 129 states have (on average 1.3875968992248062) internal successors, (179), 129 states have internal predecessors, (179), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-24 15:43:46,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 229 transitions. [2023-12-24 15:43:46,348 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 229 transitions. Word has length 181 [2023-12-24 15:43:46,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:43:46,348 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 229 transitions. [2023-12-24 15:43:46,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-12-24 15:43:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 229 transitions. [2023-12-24 15:43:46,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-24 15:43:46,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:43:46,349 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:43:46,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-24 15:43:46,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:46,559 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:43:46,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:43:46,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2094882729, now seen corresponding path program 1 times [2023-12-24 15:43:46,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:43:46,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233054104] [2023-12-24 15:43:46,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:43:46,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:46,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:43:46,561 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 15:43:46,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-24 15:43:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:43:46,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 15:43:46,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:43:47,017 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 95 treesize of output 41 [2023-12-24 15:43:47,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2023-12-24 15:43:47,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:43:47,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:43:47,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233054104] [2023-12-24 15:43:47,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233054104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:43:47,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:43:47,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 15:43:47,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925698034] [2023-12-24 15:43:47,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:43:47,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 15:43:47,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:43:47,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 15:43:47,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 15:43:47,038 INFO L87 Difference]: Start difference. First operand 156 states and 229 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-24 15:43:47,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:43:47,868 INFO L93 Difference]: Finished difference Result 317 states and 466 transitions. [2023-12-24 15:43:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 15:43:47,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 181 [2023-12-24 15:43:47,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:43:47,869 INFO L225 Difference]: With dead ends: 317 [2023-12-24 15:43:47,869 INFO L226 Difference]: Without dead ends: 162 [2023-12-24 15:43:47,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 15:43:47,870 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 205 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-24 15:43:47,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 741 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-24 15:43:47,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-24 15:43:47,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2023-12-24 15:43:47,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 129 states have (on average 1.37984496124031) internal successors, (178), 129 states have internal predecessors, (178), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-24 15:43:47,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 228 transitions. [2023-12-24 15:43:47,875 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 228 transitions. Word has length 181 [2023-12-24 15:43:47,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:43:47,875 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 228 transitions. [2023-12-24 15:43:47,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-24 15:43:47,875 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 228 transitions. [2023-12-24 15:43:47,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-24 15:43:47,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:43:47,876 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:43:47,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-24 15:43:48,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:48,077 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:43:48,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:43:48,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1257693231, now seen corresponding path program 1 times [2023-12-24 15:43:48,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:43:48,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670492511] [2023-12-24 15:43:48,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:43:48,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:48,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:43:48,079 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 15:43:48,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-24 15:43:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:43:48,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 15:43:48,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:43:48,542 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 95 treesize of output 41 [2023-12-24 15:43:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2023-12-24 15:43:48,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:43:48,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:43:48,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670492511] [2023-12-24 15:43:48,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670492511] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:43:48,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:43:48,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 15:43:48,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25599639] [2023-12-24 15:43:48,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:43:48,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 15:43:48,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:43:48,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 15:43:48,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 15:43:48,583 INFO L87 Difference]: Start difference. First operand 156 states and 228 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-24 15:43:49,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:43:49,498 INFO L93 Difference]: Finished difference Result 315 states and 461 transitions. [2023-12-24 15:43:49,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 15:43:49,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 183 [2023-12-24 15:43:49,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:43:49,500 INFO L225 Difference]: With dead ends: 315 [2023-12-24 15:43:49,500 INFO L226 Difference]: Without dead ends: 160 [2023-12-24 15:43:49,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 15:43:49,500 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 203 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-24 15:43:49,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 733 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-24 15:43:49,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-24 15:43:49,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2023-12-24 15:43:49,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 127 states have (on average 1.3779527559055118) internal successors, (175), 127 states have internal predecessors, (175), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-24 15:43:49,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 225 transitions. [2023-12-24 15:43:49,505 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 225 transitions. Word has length 183 [2023-12-24 15:43:49,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:43:49,505 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 225 transitions. [2023-12-24 15:43:49,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-24 15:43:49,505 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 225 transitions. [2023-12-24 15:43:49,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-24 15:43:49,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:43:49,507 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:43:49,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-24 15:43:49,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:49,716 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:43:49,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:43:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash 583318297, now seen corresponding path program 1 times [2023-12-24 15:43:49,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:43:49,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027412078] [2023-12-24 15:43:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:43:49,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:49,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:43:49,720 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 15:43:49,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-24 15:43:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:43:50,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 15:43:50,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:43:50,271 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 94 treesize of output 40 [2023-12-24 15:43:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 504 proven. 24 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2023-12-24 15:43:50,312 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 15:43:50,470 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 58 treesize of output 22 [2023-12-24 15:43:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 18 proven. 54 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-24 15:43:50,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:43:50,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027412078] [2023-12-24 15:43:50,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027412078] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 15:43:50,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 15:43:50,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2023-12-24 15:43:50,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306481174] [2023-12-24 15:43:50,483 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 15:43:50,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-24 15:43:50,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:43:50,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-24 15:43:50,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-24 15:43:50,484 INFO L87 Difference]: Start difference. First operand 154 states and 225 transitions. Second operand has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 4 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (49), 3 states have call predecessors, (49), 4 states have call successors, (49) [2023-12-24 15:43:51,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:43:51,740 INFO L93 Difference]: Finished difference Result 320 states and 464 transitions. [2023-12-24 15:43:51,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-24 15:43:51,740 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 4 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (49), 3 states have call predecessors, (49), 4 states have call successors, (49) Word has length 185 [2023-12-24 15:43:51,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:43:51,741 INFO L225 Difference]: With dead ends: 320 [2023-12-24 15:43:51,741 INFO L226 Difference]: Without dead ends: 156 [2023-12-24 15:43:51,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2023-12-24 15:43:51,742 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 192 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-24 15:43:51,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 950 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-24 15:43:51,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-12-24 15:43:51,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2023-12-24 15:43:51,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 127 states have (on average 1.3622047244094488) internal successors, (173), 127 states have internal predecessors, (173), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-24 15:43:51,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 223 transitions. [2023-12-24 15:43:51,747 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 223 transitions. Word has length 185 [2023-12-24 15:43:51,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:43:51,747 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 223 transitions. [2023-12-24 15:43:51,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 4 states have call successors, (49), 3 states have call predecessors, (49), 4 states have return successors, (49), 3 states have call predecessors, (49), 4 states have call successors, (49) [2023-12-24 15:43:51,748 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 223 transitions. [2023-12-24 15:43:51,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-24 15:43:51,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:43:51,749 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:43:51,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-24 15:43:51,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:51,959 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:43:51,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:43:51,959 INFO L85 PathProgramCache]: Analyzing trace with hash 513670423, now seen corresponding path program 1 times [2023-12-24 15:43:51,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:43:51,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077621691] [2023-12-24 15:43:51,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:43:51,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:51,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:43:51,969 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 15:43:51,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-24 15:43:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:43:52,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-24 15:43:52,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:43:53,586 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 12 treesize of output 8 [2023-12-24 15:43:53,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-24 15:43:54,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2023-12-24 15:43:55,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 48 [2023-12-24 15:43:56,158 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 15:43:56,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 52 [2023-12-24 15:43:56,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 157 proven. 630 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2023-12-24 15:43:56,200 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 15:43:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-24 15:43:56,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:43:56,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2077621691] [2023-12-24 15:43:56,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2077621691] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 15:43:56,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 15:43:56,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2023-12-24 15:43:56,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103370143] [2023-12-24 15:43:56,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:43:56,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-24 15:43:56,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:43:56,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-24 15:43:56,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-12-24 15:43:56,385 INFO L87 Difference]: Start difference. First operand 154 states and 223 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-24 15:43:57,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:43:57,054 INFO L93 Difference]: Finished difference Result 512 states and 741 transitions. [2023-12-24 15:43:57,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-24 15:43:57,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 185 [2023-12-24 15:43:57,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:43:57,056 INFO L225 Difference]: With dead ends: 512 [2023-12-24 15:43:57,056 INFO L226 Difference]: Without dead ends: 359 [2023-12-24 15:43:57,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2023-12-24 15:43:57,057 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 532 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-24 15:43:57,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1163 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-24 15:43:57,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-24 15:43:57,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 259. [2023-12-24 15:43:57,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 224 states have (on average 1.3883928571428572) internal successors, (311), 225 states have internal predecessors, (311), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-24 15:43:57,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 375 transitions. [2023-12-24 15:43:57,071 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 375 transitions. Word has length 185 [2023-12-24 15:43:57,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:43:57,071 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 375 transitions. [2023-12-24 15:43:57,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-24 15:43:57,072 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 375 transitions. [2023-12-24 15:43:57,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-24 15:43:57,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:43:57,074 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:43:57,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-24 15:43:57,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:57,280 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:43:57,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:43:57,281 INFO L85 PathProgramCache]: Analyzing trace with hash 91267484, now seen corresponding path program 1 times [2023-12-24 15:43:57,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:43:57,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54380631] [2023-12-24 15:43:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:43:57,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:43:57,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:43:57,305 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 15:43:57,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process Received shutdown request... [2023-12-24 15:58:24,000 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 15:58:24,012 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 15:58:25,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-24 15:58:25,213 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forcibly destroying the process [2023-12-24 15:58:25,259 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-24 15:58:25,260 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 15:58:25,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 15:58:25,261 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 188 with TraceHistMax 25,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [54380631] and IpTcStrategyModuleCvc4 [956609473]. [2023-12-24 15:58:25,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 137 [2023-12-24 15:58:25,278 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:58:25,280 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 15:58:25,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 03:58:25 BoogieIcfgContainer [2023-12-24 15:58:25,281 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 15:58:25,282 INFO L158 Benchmark]: Toolchain (without parser) took 886795.92ms. Allocated memory was 173.0MB in the beginning and 358.6MB in the end (delta: 185.6MB). Free memory was 114.1MB in the beginning and 172.0MB in the end (delta: -57.9MB). Peak memory consumption was 128.5MB. Max. memory is 8.0GB. [2023-12-24 15:58:25,282 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 173.0MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 15:58:25,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.92ms. Allocated memory is still 173.0MB. Free memory was 114.1MB in the beginning and 94.6MB in the end (delta: 19.5MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-24 15:58:25,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.62ms. Allocated memory is still 173.0MB. Free memory was 94.6MB in the beginning and 90.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-24 15:58:25,282 INFO L158 Benchmark]: Boogie Preprocessor took 98.12ms. Allocated memory is still 173.0MB. Free memory was 90.0MB in the beginning and 83.0MB in the end (delta: 7.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-24 15:58:25,282 INFO L158 Benchmark]: RCFGBuilder took 1338.30ms. Allocated memory was 173.0MB in the beginning and 298.8MB in the end (delta: 125.8MB). Free memory was 83.0MB in the beginning and 220.0MB in the end (delta: -136.9MB). Peak memory consumption was 22.8MB. Max. memory is 8.0GB. [2023-12-24 15:58:25,283 INFO L158 Benchmark]: TraceAbstraction took 884937.59ms. Allocated memory was 298.8MB in the beginning and 358.6MB in the end (delta: 59.8MB). Free memory was 219.5MB in the beginning and 172.0MB in the end (delta: 47.4MB). Peak memory consumption was 106.7MB. Max. memory is 8.0GB. [2023-12-24 15:58:25,283 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 173.0MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 347.92ms. Allocated memory is still 173.0MB. Free memory was 114.1MB in the beginning and 94.6MB in the end (delta: 19.5MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.62ms. Allocated memory is still 173.0MB. Free memory was 94.6MB in the beginning and 90.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 98.12ms. Allocated memory is still 173.0MB. Free memory was 90.0MB in the beginning and 83.0MB in the end (delta: 7.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1338.30ms. Allocated memory was 173.0MB in the beginning and 298.8MB in the end (delta: 125.8MB). Free memory was 83.0MB in the beginning and 220.0MB in the end (delta: -136.9MB). Peak memory consumption was 22.8MB. Max. memory is 8.0GB. * TraceAbstraction took 884937.59ms. Allocated memory was 298.8MB in the beginning and 358.6MB in the end (delta: 59.8MB). Free memory was 219.5MB in the beginning and 172.0MB in the end (delta: 47.4MB). Peak memory consumption was 106.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 188 with TraceHistMax 25,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [54380631] and IpTcStrategyModuleCvc4 [956609473]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 148 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 884.9s, OverallIterations: 11, TraceHistogramMax: 25, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1610 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1590 mSDsluCounter, 7528 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5468 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1154 IncrementalHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 2060 mSDtfsCounter, 1154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2379 GetRequests, 2289 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=259occurred in iteration=10, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 200 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 1810 NumberOfCodeBlocks, 1810 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2346 ConstructedInterpolants, 105 QuantifiedInterpolants, 10335 SizeOfPredicates, 59 NumberOfNonLiveVariables, 3998 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 14565/15600 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown