/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-45.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 15:01:36,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 15:01:36,649 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 15:01:36,652 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 15:01:36,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 15:01:36,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 15:01:36,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 15:01:36,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 15:01:36,668 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 15:01:36,668 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 15:01:36,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 15:01:36,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 15:01:36,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 15:01:36,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 15:01:36,669 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 15:01:36,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 15:01:36,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 15:01:36,670 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 15:01:36,670 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 15:01:36,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 15:01:36,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 15:01:36,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 15:01:36,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 15:01:36,685 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 15:01:36,685 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 15:01:36,685 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 15:01:36,685 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 15:01:36,686 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 15:01:36,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 15:01:36,686 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 15:01:36,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 15:01:36,686 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 15:01:36,687 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 15:01:36,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 15:01:36,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 15:01:36,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 15:01:36,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 15:01:36,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 15:01:36,688 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 15:01:36,688 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 15:01:36,688 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 15:01:36,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 15:01:36,688 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 15:01:36,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 15:01:36,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 15:01:36,689 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 15:01:36,689 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 15:01:36,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 15:01:36,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 15:01:36,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 15:01:36,910 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 15:01:36,910 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 15:01:36,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-45.i [2023-12-24 15:01:37,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 15:01:38,186 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 15:01:38,187 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-45.i [2023-12-24 15:01:38,196 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40f28b88f/a2105b0ab75a4d7f9b0875f77394ff09/FLAG9d551d6b6 [2023-12-24 15:01:38,213 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40f28b88f/a2105b0ab75a4d7f9b0875f77394ff09 [2023-12-24 15:01:38,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 15:01:38,218 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 15:01:38,219 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 15:01:38,219 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 15:01:38,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 15:01:38,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a46773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38, skipping insertion in model container [2023-12-24 15:01:38,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,258 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 15:01:38,354 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-45.i[917,930] [2023-12-24 15:01:38,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 15:01:38,419 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 15:01:38,428 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-45.i[917,930] [2023-12-24 15:01:38,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 15:01:38,468 INFO L206 MainTranslator]: Completed translation [2023-12-24 15:01:38,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38 WrapperNode [2023-12-24 15:01:38,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 15:01:38,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 15:01:38,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 15:01:38,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 15:01:38,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,530 INFO L138 Inliner]: procedures = 39, calls = 193, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 589 [2023-12-24 15:01:38,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 15:01:38,531 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 15:01:38,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 15:01:38,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 15:01:38,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,592 INFO L175 MemorySlicer]: Split 150 memory accesses to 8 slices as follows [2, 45, 45, 11, 7, 6, 28, 6]. 30 percent of accesses are in the largest equivalence class. The 20 initializations are split as follows [2, 7, 4, 2, 1, 1, 2, 1]. The 20 writes are split as follows [0, 8, 5, 2, 1, 1, 2, 1]. [2023-12-24 15:01:38,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,619 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 15:01:38,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 15:01:38,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 15:01:38,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 15:01:38,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (1/1) ... [2023-12-24 15:01:38,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 15:01:38,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 15:01:38,705 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 15:01:38,775 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 15:01:38,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 15:01:38,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-12-24 15:01:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-12-24 15:01:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-12-24 15:01:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-12-24 15:01:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2023-12-24 15:01:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2023-12-24 15:01:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2023-12-24 15:01:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2023-12-24 15:01:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-12-24 15:01:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-12-24 15:01:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-12-24 15:01:38,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-12-24 15:01:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2023-12-24 15:01:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2023-12-24 15:01:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2023-12-24 15:01:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2023-12-24 15:01:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-24 15:01:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-24 15:01:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-24 15:01:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-24 15:01:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-24 15:01:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-24 15:01:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-12-24 15:01:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-12-24 15:01:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-24 15:01:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-24 15:01:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2023-12-24 15:01:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2023-12-24 15:01:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2023-12-24 15:01:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2023-12-24 15:01:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2023-12-24 15:01:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7 [2023-12-24 15:01:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 15:01:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-24 15:01:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-24 15:01:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-24 15:01:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-24 15:01:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-24 15:01:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-24 15:01:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-24 15:01:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-24 15:01:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-24 15:01:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-24 15:01:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-24 15:01:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-24 15:01:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-12-24 15:01:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2023-12-24 15:01:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2023-12-24 15:01:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-24 15:01:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-24 15:01:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-12-24 15:01:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-12-24 15:01:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-12-24 15:01:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-24 15:01:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-24 15:01:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-24 15:01:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-24 15:01:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-24 15:01:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-24 15:01:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-12-24 15:01:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-12-24 15:01:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-24 15:01:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-24 15:01:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2023-12-24 15:01:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2023-12-24 15:01:38,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2023-12-24 15:01:38,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2023-12-24 15:01:38,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2023-12-24 15:01:38,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2023-12-24 15:01:38,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-24 15:01:38,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-24 15:01:38,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-12-24 15:01:38,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-12-24 15:01:38,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-12-24 15:01:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-12-24 15:01:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2023-12-24 15:01:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2023-12-24 15:01:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-24 15:01:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-24 15:01:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-12-24 15:01:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-12-24 15:01:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-12-24 15:01:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2023-12-24 15:01:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2023-12-24 15:01:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2023-12-24 15:01:38,804 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 15:01:38,804 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 15:01:38,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 15:01:38,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 15:01:38,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-24 15:01:38,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-24 15:01:38,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-24 15:01:38,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-24 15:01:38,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-24 15:01:38,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-24 15:01:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-24 15:01:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-24 15:01:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-24 15:01:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-24 15:01:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-24 15:01:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-12-24 15:01:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-12-24 15:01:39,013 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 15:01:39,015 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 15:01:47,523 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 15:01:47,557 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 15:01:47,557 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 15:01:47,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:01:47 BoogieIcfgContainer [2023-12-24 15:01:47,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 15:01:47,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 15:01:47,559 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 15:01:47,561 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 15:01:47,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 03:01:38" (1/3) ... [2023-12-24 15:01:47,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e08bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:01:47, skipping insertion in model container [2023-12-24 15:01:47,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 03:01:38" (2/3) ... [2023-12-24 15:01:47,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e08bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 03:01:47, skipping insertion in model container [2023-12-24 15:01:47,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 03:01:47" (3/3) ... [2023-12-24 15:01:47,563 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-45.i [2023-12-24 15:01:47,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 15:01:47,576 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 15:01:47,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 15:01:47,613 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;@6fa43961, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 15:01:47,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 15:01:47,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 105 states have (on average 1.4190476190476191) internal successors, (149), 106 states have internal predecessors, (149), 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 15:01:47,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-24 15:01:47,636 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:01:47,637 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] [2023-12-24 15:01:47,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:01:47,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:01:47,641 INFO L85 PathProgramCache]: Analyzing trace with hash -66983688, now seen corresponding path program 1 times [2023-12-24 15:01:47,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:01:47,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11676618] [2023-12-24 15:01:47,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:01:47,653 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 15:01:47,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:01:47,655 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 15:01:47,694 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 15:01:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:01:48,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 15:01:48,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:01:48,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 620 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-12-24 15:01:48,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:01:48,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:01:48,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11676618] [2023-12-24 15:01:48,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11676618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:01:48,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:01:48,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 15:01:48,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753734968] [2023-12-24 15:01:48,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:01:48,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 15:01:48,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:01:48,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 15:01:48,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 15:01:48,377 INFO L87 Difference]: Start difference. First operand has 133 states, 105 states have (on average 1.4190476190476191) internal successors, (149), 106 states have internal predecessors, (149), 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 33.0) internal successors, (66), 2 states have internal predecessors, (66), 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 15:01:48,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:01:48,458 INFO L93 Difference]: Finished difference Result 263 states and 421 transitions. [2023-12-24 15:01:48,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 15:01:48,460 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 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 184 [2023-12-24 15:01:48,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:01:48,469 INFO L225 Difference]: With dead ends: 263 [2023-12-24 15:01:48,469 INFO L226 Difference]: Without dead ends: 131 [2023-12-24 15:01:48,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 183 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 15:01:48,480 INFO L413 NwaCegarLoop]: 190 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, 190 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 15:01:48,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 190 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 15:01:48,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-24 15:01:48,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2023-12-24 15:01:48,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 104 states have (on average 1.3846153846153846) internal successors, (144), 104 states have internal predecessors, (144), 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 15:01:48,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 194 transitions. [2023-12-24 15:01:48,540 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 194 transitions. Word has length 184 [2023-12-24 15:01:48,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:01:48,541 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 194 transitions. [2023-12-24 15:01:48,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 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 15:01:48,541 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 194 transitions. [2023-12-24 15:01:48,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-24 15:01:48,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:01:48,549 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] [2023-12-24 15:01:48,565 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 (2)] Ended with exit code 0 [2023-12-24 15:01:48,767 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 15:01:48,768 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:01:48,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:01:48,768 INFO L85 PathProgramCache]: Analyzing trace with hash -97448946, now seen corresponding path program 1 times [2023-12-24 15:01:48,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:01:48,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790363604] [2023-12-24 15:01:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:01:48,770 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 15:01:48,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:01:48,772 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 15:01:48,776 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 15:01:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:01:49,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 15:01:49,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:01:49,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 616 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2023-12-24 15:01:49,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:01:49,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:01:49,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790363604] [2023-12-24 15:01:49,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1790363604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:01:49,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:01:49,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 15:01:49,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947340644] [2023-12-24 15:01:49,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:01:49,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 15:01:49,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:01:49,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 15:01:49,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 15:01:49,449 INFO L87 Difference]: Start difference. First operand 131 states and 194 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 15:01:49,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:01:49,641 INFO L93 Difference]: Finished difference Result 267 states and 396 transitions. [2023-12-24 15:01:49,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 15:01:49,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 184 [2023-12-24 15:01:49,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:01:49,643 INFO L225 Difference]: With dead ends: 267 [2023-12-24 15:01:49,643 INFO L226 Difference]: Without dead ends: 137 [2023-12-24 15:01:49,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 15:01:49,644 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 10 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 15:01:49,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 559 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 15:01:49,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-24 15:01:49,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 133. [2023-12-24 15:01:49,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 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 15:01:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 196 transitions. [2023-12-24 15:01:49,652 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 196 transitions. Word has length 184 [2023-12-24 15:01:49,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:01:49,653 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 196 transitions. [2023-12-24 15:01:49,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 15:01:49,653 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 196 transitions. [2023-12-24 15:01:49,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-24 15:01:49,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:01:49,655 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] [2023-12-24 15:01:49,669 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 (3)] Ended with exit code 0 [2023-12-24 15:01:49,861 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 15:01:49,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:01:49,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:01:49,863 INFO L85 PathProgramCache]: Analyzing trace with hash -68948656, now seen corresponding path program 1 times [2023-12-24 15:01:49,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:01:49,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849088583] [2023-12-24 15:01:49,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:01:49,864 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 15:01:49,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:01:49,866 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 15:01:49,867 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 15:01:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:01:50,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 15:01:50,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:01:50,465 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 17 treesize of output 9 [2023-12-24 15:01:50,528 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 15:01:50,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:01:50,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:01:50,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849088583] [2023-12-24 15:01:50,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849088583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:01:50,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:01:50,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 15:01:50,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274406001] [2023-12-24 15:01:50,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:01:50,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 15:01:50,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:01:50,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 15:01:50,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 15:01:50,531 INFO L87 Difference]: Start difference. First operand 133 states and 196 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 15:01:50,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:01:50,624 INFO L93 Difference]: Finished difference Result 265 states and 391 transitions. [2023-12-24 15:01:50,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 15:01:50,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 184 [2023-12-24 15:01:50,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:01:50,627 INFO L225 Difference]: With dead ends: 265 [2023-12-24 15:01:50,627 INFO L226 Difference]: Without dead ends: 133 [2023-12-24 15:01:50,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 15:01:50,628 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 15:01:50,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 374 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 15:01:50,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-12-24 15:01:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2023-12-24 15:01:50,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 106 states have (on average 1.3679245283018868) internal successors, (145), 106 states have internal predecessors, (145), 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 15:01:50,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 195 transitions. [2023-12-24 15:01:50,635 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 195 transitions. Word has length 184 [2023-12-24 15:01:50,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:01:50,635 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 195 transitions. [2023-12-24 15:01:50,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 15:01:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 195 transitions. [2023-12-24 15:01:50,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-24 15:01:50,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:01:50,637 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 15:01:50,652 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 15:01:50,852 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 15:01:50,853 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:01:50,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:01:50,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1703040888, now seen corresponding path program 1 times [2023-12-24 15:01:50,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:01:50,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958524465] [2023-12-24 15:01:50,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:01:50,855 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 15:01:50,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:01:50,881 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 15:01:50,885 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 15:01:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:01:51,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 15:01:51,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:01:51,474 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 15:01:51,535 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 17 treesize of output 9 [2023-12-24 15:01:51,575 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 15:01:51,575 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:01:51,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:01:51,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958524465] [2023-12-24 15:01:51,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958524465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:01:51,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:01:51,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 15:01:51,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874344758] [2023-12-24 15:01:51,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:01:51,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 15:01:51,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:01:51,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 15:01:51,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 15:01:51,577 INFO L87 Difference]: Start difference. First operand 133 states and 195 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 15:01:52,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:01:52,046 INFO L93 Difference]: Finished difference Result 305 states and 446 transitions. [2023-12-24 15:01:52,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 15:01:52,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 187 [2023-12-24 15:01:52,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:01:52,048 INFO L225 Difference]: With dead ends: 305 [2023-12-24 15:01:52,048 INFO L226 Difference]: Without dead ends: 173 [2023-12-24 15:01:52,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-24 15:01:52,049 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 54 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-24 15:01:52,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 826 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-24 15:01:52,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-24 15:01:52,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 136. [2023-12-24 15:01:52,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 109 states have (on average 1.3577981651376148) internal successors, (148), 109 states have internal predecessors, (148), 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 15:01:52,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 198 transitions. [2023-12-24 15:01:52,058 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 198 transitions. Word has length 187 [2023-12-24 15:01:52,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:01:52,058 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 198 transitions. [2023-12-24 15:01:52,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 15:01:52,059 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 198 transitions. [2023-12-24 15:01:52,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-24 15:01:52,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:01:52,060 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 15:01:52,083 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 15:01:52,271 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 15:01:52,272 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:01:52,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:01:52,273 INFO L85 PathProgramCache]: Analyzing trace with hash 681972534, now seen corresponding path program 1 times [2023-12-24 15:01:52,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:01:52,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397717552] [2023-12-24 15:01:52,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:01:52,273 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 15:01:52,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:01:52,275 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 15:01:52,320 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 15:01:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:01:52,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 15:01:52,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:01:53,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 15:01:53,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 65 [2023-12-24 15:01:53,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2023-12-24 15:01:53,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:01:53,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:01:53,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397717552] [2023-12-24 15:01:53,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397717552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:01:53,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:01:53,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 15:01:53,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000626690] [2023-12-24 15:01:53,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:01:53,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 15:01:53,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:01:53,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 15:01:53,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 15:01:53,711 INFO L87 Difference]: Start difference. First operand 136 states and 198 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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 15:01:56,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:01:58,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:02,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:06,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:02:06,615 INFO L93 Difference]: Finished difference Result 277 states and 404 transitions. [2023-12-24 15:02:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 15:02:06,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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 187 [2023-12-24 15:02:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:02:06,616 INFO L225 Difference]: With dead ends: 277 [2023-12-24 15:02:06,616 INFO L226 Difference]: Without dead ends: 142 [2023-12-24 15:02:06,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 15:02:06,618 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 164 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-12-24 15:02:06,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 596 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2023-12-24 15:02:06,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-24 15:02:06,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 136. [2023-12-24 15:02:06,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 109 states have (on average 1.348623853211009) internal successors, (147), 109 states have internal predecessors, (147), 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 15:02:06,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 197 transitions. [2023-12-24 15:02:06,626 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 197 transitions. Word has length 187 [2023-12-24 15:02:06,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:02:06,627 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 197 transitions. [2023-12-24 15:02:06,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 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 15:02:06,628 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 197 transitions. [2023-12-24 15:02:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-24 15:02:06,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:02:06,630 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, 1, 1] [2023-12-24 15:02:06,646 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 (6)] Ended with exit code 0 [2023-12-24 15:02:06,846 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 15:02:06,847 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:02:06,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:02:06,847 INFO L85 PathProgramCache]: Analyzing trace with hash 960822970, now seen corresponding path program 1 times [2023-12-24 15:02:06,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:02:06,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732892863] [2023-12-24 15:02:06,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:02:06,848 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 15:02:06,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:02:06,849 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 15:02:06,851 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 15:02:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:02:07,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 15:02:07,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:02:07,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 660 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-12-24 15:02:07,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:02:07,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:02:07,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732892863] [2023-12-24 15:02:07,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732892863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:02:07,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:02:07,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 15:02:07,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719476435] [2023-12-24 15:02:07,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:02:07,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 15:02:07,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:02:07,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 15:02:07,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-24 15:02:07,541 INFO L87 Difference]: Start difference. First operand 136 states and 197 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 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 15:02:08,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:02:08,494 INFO L93 Difference]: Finished difference Result 275 states and 398 transitions. [2023-12-24 15:02:08,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 15:02:08,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 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 189 [2023-12-24 15:02:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:02:08,500 INFO L225 Difference]: With dead ends: 275 [2023-12-24 15:02:08,500 INFO L226 Difference]: Without dead ends: 138 [2023-12-24 15:02:08,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-24 15:02:08,501 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 7 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-24 15:02:08,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 739 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-24 15:02:08,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-24 15:02:08,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2023-12-24 15:02:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 109 states have (on average 1.3394495412844036) internal successors, (146), 109 states have internal predecessors, (146), 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 15:02:08,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 196 transitions. [2023-12-24 15:02:08,506 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 196 transitions. Word has length 189 [2023-12-24 15:02:08,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:02:08,507 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 196 transitions. [2023-12-24 15:02:08,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 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 15:02:08,507 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 196 transitions. [2023-12-24 15:02:08,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-24 15:02:08,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:02:08,525 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, 1, 1] [2023-12-24 15:02:08,542 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 15:02:08,725 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 15:02:08,726 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:02:08,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:02:08,726 INFO L85 PathProgramCache]: Analyzing trace with hash 489466620, now seen corresponding path program 1 times [2023-12-24 15:02:08,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:02:08,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678752541] [2023-12-24 15:02:08,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:02:08,727 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 15:02:08,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:02:08,728 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 15:02:08,730 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 15:02:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:02:09,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 15:02:09,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:02:10,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 15:02:10,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2023-12-24 15:02:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2023-12-24 15:02:10,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:02:10,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:02:10,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678752541] [2023-12-24 15:02:10,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678752541] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:02:10,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:02:10,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 15:02:10,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426284518] [2023-12-24 15:02:10,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:02:10,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 15:02:10,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:02:10,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 15:02:10,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 15:02:10,206 INFO L87 Difference]: Start difference. First operand 136 states and 196 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 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 15:02:12,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:17,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:20,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:20,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:02:20,251 INFO L93 Difference]: Finished difference Result 277 states and 400 transitions. [2023-12-24 15:02:20,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 15:02:20,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 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 189 [2023-12-24 15:02:20,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:02:20,253 INFO L225 Difference]: With dead ends: 277 [2023-12-24 15:02:20,253 INFO L226 Difference]: Without dead ends: 142 [2023-12-24 15:02:20,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 15:02:20,254 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 154 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-24 15:02:20,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 588 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-12-24 15:02:20,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-24 15:02:20,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 136. [2023-12-24 15:02:20,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 109 states have (on average 1.3302752293577982) internal successors, (145), 109 states have internal predecessors, (145), 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 15:02:20,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 195 transitions. [2023-12-24 15:02:20,260 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 195 transitions. Word has length 189 [2023-12-24 15:02:20,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:02:20,260 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 195 transitions. [2023-12-24 15:02:20,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 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 15:02:20,260 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 195 transitions. [2023-12-24 15:02:20,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-24 15:02:20,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:02:20,261 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, 1, 1, 1, 1] [2023-12-24 15:02:20,287 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 15:02:20,488 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 15:02:20,489 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:02:20,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:02:20,489 INFO L85 PathProgramCache]: Analyzing trace with hash 491238518, now seen corresponding path program 1 times [2023-12-24 15:02:20,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:02:20,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833174096] [2023-12-24 15:02:20,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:02:20,490 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 15:02:20,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:02:20,491 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 15:02:20,493 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 15:02:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:02:21,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 15:02:21,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:02:21,955 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 15:02:21,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 67 [2023-12-24 15:02:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 616 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2023-12-24 15:02:22,040 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:02:22,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:02:22,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833174096] [2023-12-24 15:02:22,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833174096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:02:22,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:02:22,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 15:02:22,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752773482] [2023-12-24 15:02:22,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:02:22,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 15:02:22,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:02:22,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 15:02:22,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 15:02:22,042 INFO L87 Difference]: Start difference. First operand 136 states and 195 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 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 15:02:25,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:28,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:29,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:32,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:32,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:02:32,348 INFO L93 Difference]: Finished difference Result 275 states and 395 transitions. [2023-12-24 15:02:32,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 15:02:32,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 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 191 [2023-12-24 15:02:32,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:02:32,350 INFO L225 Difference]: With dead ends: 275 [2023-12-24 15:02:32,350 INFO L226 Difference]: Without dead ends: 140 [2023-12-24 15:02:32,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 15:02:32,351 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 160 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-12-24 15:02:32,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 579 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2023-12-24 15:02:32,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-24 15:02:32,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2023-12-24 15:02:32,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 107 states have (on average 1.3271028037383177) internal successors, (142), 107 states have internal predecessors, (142), 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 15:02:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 192 transitions. [2023-12-24 15:02:32,356 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 192 transitions. Word has length 191 [2023-12-24 15:02:32,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:02:32,357 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 192 transitions. [2023-12-24 15:02:32,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 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 15:02:32,357 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 192 transitions. [2023-12-24 15:02:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-24 15:02:32,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:02:32,358 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, 1, 1, 1, 1, 1, 1] [2023-12-24 15:02:32,390 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 15:02:32,572 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 15:02:32,573 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:02:32,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:02:32,573 INFO L85 PathProgramCache]: Analyzing trace with hash 577295934, now seen corresponding path program 1 times [2023-12-24 15:02:32,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:02:32,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35308171] [2023-12-24 15:02:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:02:32,574 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 15:02:32,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:02:32,598 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 15:02:32,598 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 15:02:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:02:33,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 15:02:33,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:02:34,020 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 43 [2023-12-24 15:02:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2023-12-24 15:02:34,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:02:34,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:02:34,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35308171] [2023-12-24 15:02:34,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35308171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:02:34,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:02:34,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 15:02:34,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918988044] [2023-12-24 15:02:34,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:02:34,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 15:02:34,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:02:34,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 15:02:34,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-24 15:02:34,094 INFO L87 Difference]: Start difference. First operand 134 states and 192 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 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 15:02:37,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:40,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:45,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:45,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:02:45,260 INFO L93 Difference]: Finished difference Result 273 states and 392 transitions. [2023-12-24 15:02:45,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 15:02:45,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 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 193 [2023-12-24 15:02:45,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:02:45,262 INFO L225 Difference]: With dead ends: 273 [2023-12-24 15:02:45,262 INFO L226 Difference]: Without dead ends: 140 [2023-12-24 15:02:45,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-24 15:02:45,263 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 136 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-24 15:02:45,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 585 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-12-24 15:02:45,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-24 15:02:45,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2023-12-24 15:02:45,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 107 states have internal predecessors, (141), 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 15:02:45,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 191 transitions. [2023-12-24 15:02:45,269 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 191 transitions. Word has length 193 [2023-12-24 15:02:45,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:02:45,269 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 191 transitions. [2023-12-24 15:02:45,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 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 15:02:45,269 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 191 transitions. [2023-12-24 15:02:45,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-24 15:02:45,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:02:45,270 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:02:45,286 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 15:02:45,486 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 15:02:45,486 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:02:45,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:02:45,487 INFO L85 PathProgramCache]: Analyzing trace with hash 500454712, now seen corresponding path program 1 times [2023-12-24 15:02:45,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:02:45,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385494135] [2023-12-24 15:02:45,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:02:45,487 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 15:02:45,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:02:45,488 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 15:02:45,541 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 15:02:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:02:46,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 15:02:46,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:02:46,167 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 13 [2023-12-24 15:02:46,231 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 15:02:46,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:02:46,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:02:46,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385494135] [2023-12-24 15:02:46,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385494135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:02:46,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:02:46,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 15:02:46,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516918597] [2023-12-24 15:02:46,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:02:46,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 15:02:46,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:02:46,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 15:02:46,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 15:02:46,233 INFO L87 Difference]: Start difference. First operand 134 states and 191 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 15:02:47,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 15:02:48,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:02:48,412 INFO L93 Difference]: Finished difference Result 267 states and 381 transitions. [2023-12-24 15:02:48,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 15:02:48,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 195 [2023-12-24 15:02:48,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:02:48,413 INFO L225 Difference]: With dead ends: 267 [2023-12-24 15:02:48,413 INFO L226 Difference]: Without dead ends: 134 [2023-12-24 15:02:48,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 15:02:48,414 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 1 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-24 15:02:48,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 360 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-24 15:02:48,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-12-24 15:02:48,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2023-12-24 15:02:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 107 states have (on average 1.308411214953271) internal successors, (140), 107 states have internal predecessors, (140), 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 15:02:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 190 transitions. [2023-12-24 15:02:48,419 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 190 transitions. Word has length 195 [2023-12-24 15:02:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:02:48,420 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 190 transitions. [2023-12-24 15:02:48,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 15:02:48,420 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 190 transitions. [2023-12-24 15:02:48,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-24 15:02:48,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:02:48,421 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:02:48,436 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 15:02:48,632 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 15:02:48,637 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:02:48,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:02:48,638 INFO L85 PathProgramCache]: Analyzing trace with hash 923156538, now seen corresponding path program 1 times [2023-12-24 15:02:48,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:02:48,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962417891] [2023-12-24 15:02:48,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:02:48,638 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 15:02:48,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:02:48,639 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 15:02:48,660 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 [2023-12-24 15:02:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 15:02:49,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 15:02:49,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 15:02:49,382 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 13 [2023-12-24 15:02:49,452 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 15:02:49,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 15:02:49,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 15:02:49,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962417891] [2023-12-24 15:02:49,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962417891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 15:02:49,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 15:02:49,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 15:02:49,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038518556] [2023-12-24 15:02:49,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 15:02:49,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 15:02:49,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 15:02:49,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 15:02:49,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 15:02:49,453 INFO L87 Difference]: Start difference. First operand 134 states and 190 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 15:02:51,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 15:02:51,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 15:02:51,687 INFO L93 Difference]: Finished difference Result 267 states and 379 transitions. [2023-12-24 15:02:51,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-24 15:02:51,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 195 [2023-12-24 15:02:51,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 15:02:51,693 INFO L225 Difference]: With dead ends: 267 [2023-12-24 15:02:51,693 INFO L226 Difference]: Without dead ends: 134 [2023-12-24 15:02:51,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 15:02:51,694 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 43 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-24 15:02:51,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 488 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-24 15:02:51,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-12-24 15:02:51,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2023-12-24 15:02:51,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 107 states have (on average 1.2990654205607477) internal successors, (139), 107 states have internal predecessors, (139), 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 15:02:51,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 189 transitions. [2023-12-24 15:02:51,698 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 189 transitions. Word has length 195 [2023-12-24 15:02:51,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 15:02:51,699 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 189 transitions. [2023-12-24 15:02:51,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 15:02:51,699 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 189 transitions. [2023-12-24 15:02:51,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-24 15:02:51,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 15:02:51,700 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:02:51,715 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 (12)] Ended with exit code 0 [2023-12-24 15:02:51,908 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 15:02:51,908 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 15:02:51,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 15:02:51,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1624221116, now seen corresponding path program 1 times [2023-12-24 15:02:51,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 15:02:51,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022948902] [2023-12-24 15:02:51,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 15:02:51,909 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 15:02:51,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 15:02:51,910 INFO L229 MonitoredProcess]: Starting monitored process 13 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 15:02:51,911 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 (13)] Waiting until timeout for monitored process Received shutdown request... [2023-12-24 15:16:26,190 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 (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 15:16:26,232 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 15:16:27,309 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 15:16:27,391 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 (13)] Forcibly destroying the process [2023-12-24 15:16:27,463 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-24 15:16:27,465 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 15:16:27,466 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 (13)] Forceful destruction successful, exit code 137 [2023-12-24 15:16:27,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 15:16:27,466 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 196 with TraceHistMax 25,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1022948902] and IpTcStrategyModuleCvc4 [2096831905]. [2023-12-24 15:16:27,474 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 15:16:27,476 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 15:16:27,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 03:16:27 BoogieIcfgContainer [2023-12-24 15:16:27,478 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 15:16:27,478 INFO L158 Benchmark]: Toolchain (without parser) took 889260.19ms. Allocated memory was 219.2MB in the beginning and 263.2MB in the end (delta: 44.0MB). Free memory was 178.6MB in the beginning and 198.5MB in the end (delta: -19.9MB). Peak memory consumption was 24.7MB. Max. memory is 8.0GB. [2023-12-24 15:16:27,478 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 167.8MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 15:16:27,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.37ms. Allocated memory is still 219.2MB. Free memory was 178.6MB in the beginning and 160.8MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-24 15:16:27,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.88ms. Allocated memory is still 219.2MB. Free memory was 160.8MB in the beginning and 157.1MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-24 15:16:27,478 INFO L158 Benchmark]: Boogie Preprocessor took 120.12ms. Allocated memory is still 219.2MB. Free memory was 157.1MB in the beginning and 149.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-24 15:16:27,479 INFO L158 Benchmark]: RCFGBuilder took 8902.19ms. Allocated memory is still 219.2MB. Free memory was 149.3MB in the beginning and 159.7MB in the end (delta: -10.4MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2023-12-24 15:16:27,479 INFO L158 Benchmark]: TraceAbstraction took 879918.40ms. Allocated memory was 219.2MB in the beginning and 263.2MB in the end (delta: 44.0MB). Free memory was 159.2MB in the beginning and 198.5MB in the end (delta: -39.3MB). Peak memory consumption was 4.7MB. Max. memory is 8.0GB. [2023-12-24 15:16:27,480 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 167.8MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 250.37ms. Allocated memory is still 219.2MB. Free memory was 178.6MB in the beginning and 160.8MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.88ms. Allocated memory is still 219.2MB. Free memory was 160.8MB in the beginning and 157.1MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 120.12ms. Allocated memory is still 219.2MB. Free memory was 157.1MB in the beginning and 149.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 8902.19ms. Allocated memory is still 219.2MB. Free memory was 149.3MB in the beginning and 159.7MB in the end (delta: -10.4MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. * TraceAbstraction took 879918.40ms. Allocated memory was 219.2MB in the beginning and 263.2MB in the end (delta: 44.0MB). Free memory was 159.2MB in the beginning and 198.5MB in the end (delta: -39.3MB). Peak memory consumption was 4.7MB. 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 196 with TraceHistMax 25,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [1022948902] and IpTcStrategyModuleCvc4 [2096831905]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 133 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 879.9s, OverallIterations: 12, TraceHistogramMax: 25, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 50.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 730 SdHoareTripleChecker+Valid, 49.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 729 mSDsluCounter, 5884 SdHoareTripleChecker+Invalid, 48.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3917 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1041 IncrementalHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 1967 mSDtfsCounter, 1041 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2087 GetRequests, 2038 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=4, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 67 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 2078 NumberOfCodeBlocks, 2078 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2067 ConstructedInterpolants, 3 QuantifiedInterpolants, 3281 SizeOfPredicates, 53 NumberOfNonLiveVariables, 4863 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 13200/13200 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