/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-p_file-16.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 15:45:27,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 15:45:27,476 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 15:45:27,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 15:45:27,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 15:45:27,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 15:45:27,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 15:45:27,504 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 15:45:27,505 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 15:45:27,508 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 15:45:27,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 15:45:27,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 15:45:27,509 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 15:45:27,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 15:45:27,510 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 15:45:27,510 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 15:45:27,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 15:45:27,511 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 15:45:27,511 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 15:45:27,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 15:45:27,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 15:45:27,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 15:45:27,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 15:45:27,512 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 15:45:27,512 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 15:45:27,512 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 15:45:27,512 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 15:45:27,513 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 15:45:27,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 15:45:27,513 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 15:45:27,514 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 15:45:27,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 15:45:27,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 15:45:27,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 15:45:27,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:45:27,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 15:45:27,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 15:45:27,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 15:45:27,515 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 15:45:27,515 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 15:45:27,515 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 15:45:27,515 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 15:45:27,516 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 15:45:27,516 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 15:45:27,516 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 15:45:27,516 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 15:45:27,516 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 15:45:27,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 15:45:27,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 15:45:27,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 15:45:27,724 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 15:45:27,724 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 15:45:27,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-16.i [2023-12-16 15:45:28,780 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 15:45:28,932 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 15:45:28,932 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-16.i [2023-12-16 15:45:28,938 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88ef92d5/70a8a4edf25d4379a6188502d4dd0c85/FLAG7cbda14c5 [2023-12-16 15:45:28,947 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88ef92d5/70a8a4edf25d4379a6188502d4dd0c85 [2023-12-16 15:45:28,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 15:45:28,949 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 15:45:28,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 15:45:28,950 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 15:45:28,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 15:45:28,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:45:28" (1/1) ... [2023-12-16 15:45:28,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d99c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:28, skipping insertion in model container [2023-12-16 15:45:28,954 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:45:28" (1/1) ... [2023-12-16 15:45:28,972 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 15:45:29,092 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-p_file-16.i[916,929] [2023-12-16 15:45:29,127 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:45:29,138 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 15:45:29,145 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-p_file-16.i[916,929] [2023-12-16 15:45:29,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:45:29,200 INFO L206 MainTranslator]: Completed translation [2023-12-16 15:45:29,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29 WrapperNode [2023-12-16 15:45:29,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 15:45:29,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 15:45:29,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 15:45:29,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 15:45:29,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,272 INFO L138 Inliner]: procedures = 33, calls = 170, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 496 [2023-12-16 15:45:29,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 15:45:29,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 15:45:29,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 15:45:29,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 15:45:29,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,321 INFO L175 MemorySlicer]: Split 124 memory accesses to 15 slices as follows [2, 5, 9, 9, 6, 8, 7, 14, 8, 13, 12, 8, 10, 8, 5]. 11 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 2]. [2023-12-16 15:45:29,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,340 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 15:45:29,357 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 15:45:29,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 15:45:29,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 15:45:29,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (1/1) ... [2023-12-16 15:45:29,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:45:29,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 15:45:29,405 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) [2023-12-16 15:45:29,478 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 [2023-12-16 15:45:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 15:45:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 15:45:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 15:45:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-16 15:45:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-16 15:45:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-16 15:45:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-16 15:45:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-12-16 15:45:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-12-16 15:45:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-12-16 15:45:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-12-16 15:45:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-12-16 15:45:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2023-12-16 15:45:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2023-12-16 15:45:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2023-12-16 15:45:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#14 [2023-12-16 15:45:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-16 15:45:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-16 15:45:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2023-12-16 15:45:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2023-12-16 15:45:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2023-12-16 15:45:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2023-12-16 15:45:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2023-12-16 15:45:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7 [2023-12-16 15:45:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#8 [2023-12-16 15:45:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#9 [2023-12-16 15:45:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#10 [2023-12-16 15:45:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#11 [2023-12-16 15:45:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#12 [2023-12-16 15:45:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#13 [2023-12-16 15:45:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#14 [2023-12-16 15:45:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 15:45:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-16 15:45:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-16 15:45:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-12-16 15:45:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-12-16 15:45:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-12-16 15:45:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-12-16 15:45:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2023-12-16 15:45:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2023-12-16 15:45:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2023-12-16 15:45:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2023-12-16 15:45:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2023-12-16 15:45:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2023-12-16 15:45:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2023-12-16 15:45:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2023-12-16 15:45:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2023-12-16 15:45:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-16 15:45:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-16 15:45:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2023-12-16 15:45:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2023-12-16 15:45:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2023-12-16 15:45:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2023-12-16 15:45:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2023-12-16 15:45:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2023-12-16 15:45:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#8 [2023-12-16 15:45:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#9 [2023-12-16 15:45:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#10 [2023-12-16 15:45:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#11 [2023-12-16 15:45:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#12 [2023-12-16 15:45:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#13 [2023-12-16 15:45:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#14 [2023-12-16 15:45:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-16 15:45:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-16 15:45:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-12-16 15:45:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-12-16 15:45:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-12-16 15:45:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-12-16 15:45:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2023-12-16 15:45:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2023-12-16 15:45:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2023-12-16 15:45:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2023-12-16 15:45:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2023-12-16 15:45:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2023-12-16 15:45:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#12 [2023-12-16 15:45:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#13 [2023-12-16 15:45:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#14 [2023-12-16 15:45:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 15:45:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 15:45:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 15:45:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 15:45:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 15:45:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 15:45:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-16 15:45:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-16 15:45:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-16 15:45:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#14 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2023-12-16 15:45:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2023-12-16 15:45:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2023-12-16 15:45:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2023-12-16 15:45:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2023-12-16 15:45:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#8 [2023-12-16 15:45:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#9 [2023-12-16 15:45:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#10 [2023-12-16 15:45:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#11 [2023-12-16 15:45:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#12 [2023-12-16 15:45:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#13 [2023-12-16 15:45:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#14 [2023-12-16 15:45:29,682 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 15:45:29,684 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 15:45:34,779 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 15:45:34,835 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 15:45:34,835 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 15:45:34,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:45:34 BoogieIcfgContainer [2023-12-16 15:45:34,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 15:45:34,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 15:45:34,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 15:45:34,839 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 15:45:34,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:45:28" (1/3) ... [2023-12-16 15:45:34,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eea2d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:45:34, skipping insertion in model container [2023-12-16 15:45:34,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:45:29" (2/3) ... [2023-12-16 15:45:34,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eea2d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:45:34, skipping insertion in model container [2023-12-16 15:45:34,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:45:34" (3/3) ... [2023-12-16 15:45:34,842 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-16.i [2023-12-16 15:45:34,853 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 15:45:34,853 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 15:45:34,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 15:45:34,898 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;@7ada7529, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 15:45:34,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 15:45:34,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 79 states have (on average 1.4303797468354431) internal successors, (113), 80 states have internal predecessors, (113), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 15:45:34,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 15:45:34,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:45:34,915 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:45:34,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:45:34,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:45:34,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1899702827, now seen corresponding path program 1 times [2023-12-16 15:45:34,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:45:34,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174350313] [2023-12-16 15:45:34,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:45:34,931 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 [2023-12-16 15:45:34,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:45:34,934 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) [2023-12-16 15:45:34,955 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 [2023-12-16 15:45:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:45:35,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 15:45:35,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:45:35,519 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-12-16 15:45:35,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:45:35,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:45:35,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174350313] [2023-12-16 15:45:35,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174350313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:45:35,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:45:35,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 15:45:35,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223531196] [2023-12-16 15:45:35,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:45:35,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 15:45:35,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:45:35,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 15:45:35,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:45:35,544 INFO L87 Difference]: Start difference. First operand has 103 states, 79 states have (on average 1.4303797468354431) internal successors, (113), 80 states have internal predecessors, (113), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 15:45:35,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:45:35,608 INFO L93 Difference]: Finished difference Result 199 states and 323 transitions. [2023-12-16 15:45:35,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 15:45:35,610 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2023-12-16 15:45:35,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:45:35,615 INFO L225 Difference]: With dead ends: 199 [2023-12-16 15:45:35,616 INFO L226 Difference]: Without dead ends: 97 [2023-12-16 15:45:35,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:45:35,620 INFO L413 NwaCegarLoop]: 138 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, 138 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 [2023-12-16 15:45:35,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 15:45:35,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-16 15:45:35,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-12-16 15:45:35,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 74 states have (on average 1.3513513513513513) internal successors, (100), 74 states have internal predecessors, (100), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 15:45:35,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 142 transitions. [2023-12-16 15:45:35,652 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 142 transitions. Word has length 152 [2023-12-16 15:45:35,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:45:35,652 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 142 transitions. [2023-12-16 15:45:35,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 15:45:35,653 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 142 transitions. [2023-12-16 15:45:35,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 15:45:35,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:45:35,655 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:45:35,684 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 [2023-12-16 15:45:35,868 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 [2023-12-16 15:45:35,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:45:35,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:45:35,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1228990203, now seen corresponding path program 1 times [2023-12-16 15:45:35,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:45:35,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732677002] [2023-12-16 15:45:35,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:45:35,870 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 [2023-12-16 15:45:35,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:45:35,871 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) [2023-12-16 15:45:35,874 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 [2023-12-16 15:45:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:45:36,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 15:45:36,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:45:36,399 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-12-16 15:45:36,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:45:36,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:45:36,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732677002] [2023-12-16 15:45:36,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732677002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:45:36,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:45:36,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 15:45:36,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600228024] [2023-12-16 15:45:36,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:45:36,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 15:45:36,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:45:36,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 15:45:36,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 15:45:36,403 INFO L87 Difference]: Start difference. First operand 97 states and 142 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 15:45:36,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:45:36,484 INFO L93 Difference]: Finished difference Result 199 states and 292 transitions. [2023-12-16 15:45:36,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:45:36,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2023-12-16 15:45:36,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:45:36,486 INFO L225 Difference]: With dead ends: 199 [2023-12-16 15:45:36,486 INFO L226 Difference]: Without dead ends: 103 [2023-12-16 15:45:36,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 15:45:36,487 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 10 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:45:36,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 406 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:45:36,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-16 15:45:36,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2023-12-16 15:45:36,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 76 states have (on average 1.3421052631578947) internal successors, (102), 76 states have internal predecessors, (102), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 15:45:36,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 144 transitions. [2023-12-16 15:45:36,504 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 144 transitions. Word has length 152 [2023-12-16 15:45:36,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:45:36,505 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 144 transitions. [2023-12-16 15:45:36,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 15:45:36,505 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 144 transitions. [2023-12-16 15:45:36,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 15:45:36,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:45:36,507 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:45:36,537 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 [2023-12-16 15:45:36,720 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 [2023-12-16 15:45:36,721 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:45:36,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:45:36,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1188913863, now seen corresponding path program 1 times [2023-12-16 15:45:36,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:45:36,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459898911] [2023-12-16 15:45:36,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:45:36,722 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 [2023-12-16 15:45:36,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:45:36,727 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) [2023-12-16 15:45:36,731 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 [2023-12-16 15:45:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:45:37,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 15:45:37,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:45:37,458 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 25 treesize of output 17 [2023-12-16 15:45:37,464 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 21 treesize of output 13 [2023-12-16 15:45:37,535 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-16 15:45:37,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:45:37,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:45:37,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459898911] [2023-12-16 15:45:37,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459898911] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:45:37,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:45:37,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 15:45:37,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294241411] [2023-12-16 15:45:37,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:45:37,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:45:37,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:45:37,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:45:37,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 15:45:37,538 INFO L87 Difference]: Start difference. First operand 99 states and 144 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-16 15:45:38,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:45:38,132 INFO L93 Difference]: Finished difference Result 258 states and 377 transitions. [2023-12-16 15:45:38,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:45:38,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 152 [2023-12-16 15:45:38,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:45:38,140 INFO L225 Difference]: With dead ends: 258 [2023-12-16 15:45:38,140 INFO L226 Difference]: Without dead ends: 160 [2023-12-16 15:45:38,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-16 15:45:38,141 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 314 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 15:45:38,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 465 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 15:45:38,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-16 15:45:38,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 111. [2023-12-16 15:45:38,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 88 states have internal predecessors, (120), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 15:45:38,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 162 transitions. [2023-12-16 15:45:38,152 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 162 transitions. Word has length 152 [2023-12-16 15:45:38,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:45:38,158 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 162 transitions. [2023-12-16 15:45:38,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-12-16 15:45:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 162 transitions. [2023-12-16 15:45:38,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 15:45:38,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:45:38,165 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:45:38,177 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 [2023-12-16 15:45:38,377 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 [2023-12-16 15:45:38,377 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:45:38,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:45:38,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1889978441, now seen corresponding path program 1 times [2023-12-16 15:45:38,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:45:38,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696792146] [2023-12-16 15:45:38,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:45:38,381 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 [2023-12-16 15:45:38,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:45:38,398 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) [2023-12-16 15:45:38,426 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 [2023-12-16 15:45:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:45:38,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-16 15:45:38,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:45:40,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 15:45:40,415 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 125 treesize of output 89 [2023-12-16 15:45:40,420 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 137 treesize of output 77 [2023-12-16 15:45:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-12-16 15:45:40,497 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:45:40,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:45:40,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696792146] [2023-12-16 15:45:40,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696792146] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:45:40,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [865555600] [2023-12-16 15:45:40,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:45:40,655 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 15:45:40,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 15:45:40,690 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 15:45:40,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 15:45:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:45:42,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-16 15:45:42,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:45:44,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 15:45:45,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 15:45:48,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 15:45:49,002 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 61 treesize of output 37 [2023-12-16 15:45:49,015 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 97 treesize of output 49 [2023-12-16 15:45:49,065 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 70 treesize of output 34 [2023-12-16 15:45:50,045 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 480 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-12-16 15:45:50,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 15:46:45,738 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:46:45,738 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 [2023-12-16 15:46:45,753 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:46:46,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-16 15:46:46,778 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 [2023-12-16 15:46:46,940 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 15:46:46,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 15:46:46,973 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 15:46:46,973 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 153 with TraceHistMax 21,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-16 15:46:46,976 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 15:46:46,991 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 15:46:46,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:46:46 BoogieIcfgContainer [2023-12-16 15:46:46,993 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 15:46:46,993 INFO L158 Benchmark]: Toolchain (without parser) took 78043.91ms. Allocated memory was 200.3MB in the beginning and 370.1MB in the end (delta: 169.9MB). Free memory was 145.8MB in the beginning and 135.1MB in the end (delta: 10.7MB). Peak memory consumption was 181.4MB. Max. memory is 8.0GB. [2023-12-16 15:46:46,993 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 200.3MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:46:46,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.82ms. Allocated memory is still 200.3MB. Free memory was 145.6MB in the beginning and 130.4MB in the end (delta: 15.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 15:46:46,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.28ms. Allocated memory is still 200.3MB. Free memory was 130.4MB in the beginning and 127.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 15:46:46,994 INFO L158 Benchmark]: Boogie Preprocessor took 83.39ms. Allocated memory is still 200.3MB. Free memory was 127.3MB in the beginning and 120.7MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 15:46:46,994 INFO L158 Benchmark]: RCFGBuilder took 5478.43ms. Allocated memory was 200.3MB in the beginning and 370.1MB in the end (delta: 169.9MB). Free memory was 120.7MB in the beginning and 316.5MB in the end (delta: -195.8MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2023-12-16 15:46:46,994 INFO L158 Benchmark]: TraceAbstraction took 72155.98ms. Allocated memory is still 370.1MB. Free memory was 315.4MB in the beginning and 135.1MB in the end (delta: 180.4MB). Peak memory consumption was 180.4MB. Max. memory is 8.0GB. [2023-12-16 15:46:46,995 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 200.3MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 250.82ms. Allocated memory is still 200.3MB. Free memory was 145.6MB in the beginning and 130.4MB in the end (delta: 15.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.28ms. Allocated memory is still 200.3MB. Free memory was 130.4MB in the beginning and 127.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 83.39ms. Allocated memory is still 200.3MB. Free memory was 127.3MB in the beginning and 120.7MB in the end (delta: 6.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 5478.43ms. Allocated memory was 200.3MB in the beginning and 370.1MB in the end (delta: 169.9MB). Free memory was 120.7MB in the beginning and 316.5MB in the end (delta: -195.8MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. * TraceAbstraction took 72155.98ms. Allocated memory is still 370.1MB. Free memory was 315.4MB in the beginning and 135.1MB in the end (delta: 180.4MB). Peak memory consumption was 180.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 153 with TraceHistMax 21,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.1s, OverallIterations: 4, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 325 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 324 mSDsluCounter, 1009 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 601 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 158 IncrementalHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 408 mSDtfsCounter, 158 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 459 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 53 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 456 NumberOfCodeBlocks, 456 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 453 ConstructedInterpolants, 1 QuantifiedInterpolants, 584 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1106 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2520/2520 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