/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-82.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 17:12:30,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 17:12:30,234 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 17:12:30,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 17:12:30,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 17:12:30,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 17:12:30,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 17:12:30,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 17:12:30,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 17:12:30,265 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 17:12:30,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 17:12:30,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 17:12:30,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 17:12:30,267 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 17:12:30,267 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 17:12:30,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 17:12:30,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 17:12:30,268 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 17:12:30,268 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 17:12:30,269 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 17:12:30,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 17:12:30,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 17:12:30,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 17:12:30,269 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 17:12:30,269 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 17:12:30,270 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 17:12:30,270 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 17:12:30,270 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 17:12:30,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 17:12:30,270 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 17:12:30,271 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 17:12:30,271 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 17:12:30,271 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 17:12:30,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 17:12:30,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 17:12:30,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 17:12:30,271 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 17:12:30,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 17:12:30,272 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 17:12:30,272 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 17:12:30,272 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 17:12:30,272 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 17:12:30,272 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 17:12:30,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 17:12:30,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 17:12:30,273 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 17:12:30,273 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 17:12:30,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 17:12:30,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 17:12:30,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 17:12:30,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 17:12:30,453 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 17:12:30,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-82.i [2023-12-24 17:12:31,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 17:12:31,657 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 17:12:31,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-82.i [2023-12-24 17:12:31,676 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe199440/4a0b661c256942768962a38c16c9a990/FLAG307a8ed56 [2023-12-24 17:12:31,686 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe199440/4a0b661c256942768962a38c16c9a990 [2023-12-24 17:12:31,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 17:12:31,691 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 17:12:31,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 17:12:31,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 17:12:31,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 17:12:31,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:31,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79229455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31, skipping insertion in model container [2023-12-24 17:12:31,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:31,732 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 17:12:31,865 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-82.i[916,929] [2023-12-24 17:12:31,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 17:12:31,926 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 17:12:31,935 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-82.i[916,929] [2023-12-24 17:12:31,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 17:12:31,970 INFO L206 MainTranslator]: Completed translation [2023-12-24 17:12:31,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31 WrapperNode [2023-12-24 17:12:31,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 17:12:31,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 17:12:31,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 17:12:31,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 17:12:31,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,045 INFO L138 Inliner]: procedures = 33, calls = 172, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 531 [2023-12-24 17:12:32,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 17:12:32,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 17:12:32,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 17:12:32,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 17:12:32,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,058 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,081 INFO L175 MemorySlicer]: Split 133 memory accesses to 15 slices as follows [2, 9, 10, 16, 16, 8, 16, 6, 18, 8, 8, 6, 3, 4, 3]. 14 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 1, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 1, 1]. [2023-12-24 17:12:32,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,107 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 17:12:32,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 17:12:32,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 17:12:32,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 17:12:32,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (1/1) ... [2023-12-24 17:12:32,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 17:12:32,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 17:12:32,169 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 17:12:32,179 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 17:12:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 17:12:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-12-24 17:12:32,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-12-24 17:12:32,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-12-24 17:12:32,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-12-24 17:12:32,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2023-12-24 17:12:32,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2023-12-24 17:12:32,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2023-12-24 17:12:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2023-12-24 17:12:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2023-12-24 17:12:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9 [2023-12-24 17:12:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#10 [2023-12-24 17:12:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#11 [2023-12-24 17:12:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#12 [2023-12-24 17:12:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#13 [2023-12-24 17:12:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#14 [2023-12-24 17:12:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-12-24 17:12:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-12-24 17:12:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-12-24 17:12:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-12-24 17:12:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2023-12-24 17:12:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2023-12-24 17:12:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2023-12-24 17:12:32,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2023-12-24 17:12:32,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2023-12-24 17:12:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9 [2023-12-24 17:12:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#10 [2023-12-24 17:12:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#11 [2023-12-24 17:12:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#12 [2023-12-24 17:12:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#13 [2023-12-24 17:12:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#14 [2023-12-24 17:12:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-24 17:12:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-24 17:12:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-24 17:12:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-24 17:12:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#14 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-24 17:12:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-24 17:12:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-24 17:12:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-12-24 17:12:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-12-24 17:12:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-12-24 17:12:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-12-24 17:12:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2023-12-24 17:12:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2023-12-24 17:12:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2023-12-24 17:12:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2023-12-24 17:12:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2023-12-24 17:12:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2023-12-24 17:12:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2023-12-24 17:12:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2023-12-24 17:12:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2023-12-24 17:12:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2023-12-24 17:12:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2023-12-24 17:12:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2023-12-24 17:12:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2023-12-24 17:12:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2023-12-24 17:12:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2023-12-24 17:12:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2023-12-24 17:12:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2023-12-24 17:12:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2023-12-24 17:12:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9 [2023-12-24 17:12:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#10 [2023-12-24 17:12:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#11 [2023-12-24 17:12:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#12 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#13 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#14 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2023-12-24 17:12:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2023-12-24 17:12:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2023-12-24 17:12:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2023-12-24 17:12:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2023-12-24 17:12:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-24 17:12:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-24 17:12:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2023-12-24 17:12:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2023-12-24 17:12:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2023-12-24 17:12:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2023-12-24 17:12:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2023-12-24 17:12:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2023-12-24 17:12:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2023-12-24 17:12:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2023-12-24 17:12:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2023-12-24 17:12:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2023-12-24 17:12:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#12 [2023-12-24 17:12:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#13 [2023-12-24 17:12:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#14 [2023-12-24 17:12:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 17:12:32,211 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 17:12:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 17:12:32,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 17:12:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-24 17:12:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-24 17:12:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-24 17:12:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-24 17:12:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-24 17:12:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-24 17:12:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-12-24 17:12:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-12-24 17:12:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-12-24 17:12:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-12-24 17:12:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-12-24 17:12:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2023-12-24 17:12:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2023-12-24 17:12:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2023-12-24 17:12:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#14 [2023-12-24 17:12:32,398 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 17:12:32,400 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 17:12:35,146 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 17:12:35,175 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 17:12:35,176 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 17:12:35,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 05:12:35 BoogieIcfgContainer [2023-12-24 17:12:35,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 17:12:35,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 17:12:35,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 17:12:35,179 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 17:12:35,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 05:12:31" (1/3) ... [2023-12-24 17:12:35,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1433e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 05:12:35, skipping insertion in model container [2023-12-24 17:12:35,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:12:31" (2/3) ... [2023-12-24 17:12:35,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1433e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 05:12:35, skipping insertion in model container [2023-12-24 17:12:35,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 05:12:35" (3/3) ... [2023-12-24 17:12:35,181 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-82.i [2023-12-24 17:12:35,192 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 17:12:35,192 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 17:12:35,227 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 17:12:35,232 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;@67da2ebb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 17:12:35,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 17:12:35,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-24 17:12:35,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-24 17:12:35,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:35,251 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:35,251 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:35,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:35,255 INFO L85 PathProgramCache]: Analyzing trace with hash -235031558, now seen corresponding path program 1 times [2023-12-24 17:12:35,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:35,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872510993] [2023-12-24 17:12:35,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:35,268 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 17:12:35,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:35,270 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 17:12:35,310 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 17:12:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:35,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 17:12:35,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:35,619 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2023-12-24 17:12:35,619 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 17:12:35,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:35,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872510993] [2023-12-24 17:12:35,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872510993] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 17:12:35,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 17:12:35,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 17:12:35,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150399565] [2023-12-24 17:12:35,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:12:35,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 17:12:35,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:12:35,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 17:12:35,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 17:12:35,648 INFO L87 Difference]: Start difference. First operand has 101 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-24 17:12:35,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:12:35,708 INFO L93 Difference]: Finished difference Result 199 states and 312 transitions. [2023-12-24 17:12:35,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 17:12:35,710 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2023-12-24 17:12:35,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:12:35,715 INFO L225 Difference]: With dead ends: 199 [2023-12-24 17:12:35,715 INFO L226 Difference]: Without dead ends: 99 [2023-12-24 17:12:35,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 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 17:12:35,719 INFO L413 NwaCegarLoop]: 137 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, 137 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 17:12:35,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 17:12:35,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-24 17:12:35,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-12-24 17:12:35,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-24 17:12:35,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2023-12-24 17:12:35,746 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 114 [2023-12-24 17:12:35,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:12:35,747 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2023-12-24 17:12:35,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-24 17:12:35,747 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2023-12-24 17:12:35,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-24 17:12:35,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:35,749 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:35,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-24 17:12:35,957 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 17:12:35,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:35,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:35,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1328970660, now seen corresponding path program 1 times [2023-12-24 17:12:35,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:35,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692473824] [2023-12-24 17:12:35,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:35,959 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 17:12:35,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:35,985 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 17:12:36,014 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 17:12:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:36,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 17:12:36,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-24 17:12:36,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 17:12:36,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:36,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692473824] [2023-12-24 17:12:36,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692473824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 17:12:36,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 17:12:36,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 17:12:36,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798796214] [2023-12-24 17:12:36,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:12:36,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 17:12:36,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:12:36,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 17:12:36,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 17:12:36,287 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-24 17:12:36,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:12:36,349 INFO L93 Difference]: Finished difference Result 203 states and 290 transitions. [2023-12-24 17:12:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 17:12:36,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2023-12-24 17:12:36,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:12:36,364 INFO L225 Difference]: With dead ends: 203 [2023-12-24 17:12:36,365 INFO L226 Difference]: Without dead ends: 105 [2023-12-24 17:12:36,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 17:12:36,366 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 10 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 17:12:36,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 400 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 17:12:36,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-24 17:12:36,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 101. [2023-12-24 17:12:36,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 85 states have internal predecessors, (115), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-24 17:12:36,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions. [2023-12-24 17:12:36,375 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 114 [2023-12-24 17:12:36,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:12:36,375 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 143 transitions. [2023-12-24 17:12:36,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-24 17:12:36,375 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions. [2023-12-24 17:12:36,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-24 17:12:36,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:36,385 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:36,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 17:12:36,592 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 17:12:36,592 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:36,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:36,593 INFO L85 PathProgramCache]: Analyzing trace with hash -568526106, now seen corresponding path program 1 times [2023-12-24 17:12:36,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:36,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297735082] [2023-12-24 17:12:36,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:36,594 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 17:12:36,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:36,595 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 17:12:36,600 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 17:12:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:36,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 17:12:36,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:36,902 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 17:12:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:12:37,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 17:12:37,047 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:37,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297735082] [2023-12-24 17:12:37,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297735082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 17:12:37,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 17:12:37,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 17:12:37,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548453929] [2023-12-24 17:12:37,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:12:37,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 17:12:37,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:12:37,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 17:12:37,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-24 17:12:37,049 INFO L87 Difference]: Start difference. First operand 101 states and 143 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:37,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:12:37,420 INFO L93 Difference]: Finished difference Result 298 states and 424 transitions. [2023-12-24 17:12:37,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 17:12:37,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-24 17:12:37,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:12:37,422 INFO L225 Difference]: With dead ends: 298 [2023-12-24 17:12:37,422 INFO L226 Difference]: Without dead ends: 198 [2023-12-24 17:12:37,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-24 17:12:37,423 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 118 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 17:12:37,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 502 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 17:12:37,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-24 17:12:37,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 171. [2023-12-24 17:12:37,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 140 states have (on average 1.3428571428571427) internal successors, (188), 140 states have internal predecessors, (188), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-24 17:12:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 244 transitions. [2023-12-24 17:12:37,435 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 244 transitions. Word has length 114 [2023-12-24 17:12:37,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:12:37,435 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 244 transitions. [2023-12-24 17:12:37,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:37,435 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 244 transitions. [2023-12-24 17:12:37,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-24 17:12:37,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:37,437 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:37,446 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 17:12:37,643 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 17:12:37,644 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:37,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:37,644 INFO L85 PathProgramCache]: Analyzing trace with hash 786543965, now seen corresponding path program 1 times [2023-12-24 17:12:37,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:37,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253869276] [2023-12-24 17:12:37,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:37,645 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 17:12:37,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:37,646 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 17:12:37,648 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 17:12:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:37,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 17:12:37,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:37,917 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:12:37,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 17:12:37,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:37,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253869276] [2023-12-24 17:12:37,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253869276] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 17:12:37,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 17:12:37,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 17:12:37,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962522632] [2023-12-24 17:12:37,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:12:37,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 17:12:37,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:12:37,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 17:12:37,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 17:12:37,919 INFO L87 Difference]: Start difference. First operand 171 states and 244 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:37,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:12:37,967 INFO L93 Difference]: Finished difference Result 301 states and 428 transitions. [2023-12-24 17:12:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 17:12:37,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-24 17:12:37,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:12:37,968 INFO L225 Difference]: With dead ends: 301 [2023-12-24 17:12:37,968 INFO L226 Difference]: Without dead ends: 201 [2023-12-24 17:12:37,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 17:12:37,970 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 49 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-24 17:12:37,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 446 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-24 17:12:37,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-12-24 17:12:37,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 175. [2023-12-24 17:12:37,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 144 states have (on average 1.3333333333333333) internal successors, (192), 144 states have internal predecessors, (192), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-24 17:12:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 248 transitions. [2023-12-24 17:12:37,992 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 248 transitions. Word has length 114 [2023-12-24 17:12:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:12:37,993 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 248 transitions. [2023-12-24 17:12:37,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:37,993 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 248 transitions. [2023-12-24 17:12:37,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-24 17:12:37,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:37,994 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:38,003 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 17:12:38,209 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 17:12:38,210 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:38,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:38,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1580210315, now seen corresponding path program 1 times [2023-12-24 17:12:38,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:38,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437733696] [2023-12-24 17:12:38,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:38,211 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 17:12:38,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:38,213 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 17:12:38,214 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 17:12:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:38,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 17:12:38,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:38,766 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 27 treesize of output 15 [2023-12-24 17:12:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 88 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-24 17:12:38,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:12:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:12:38,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:38,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437733696] [2023-12-24 17:12:38,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1437733696] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 17:12:38,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 17:12:38,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-24 17:12:38,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600665870] [2023-12-24 17:12:38,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:12:38,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 17:12:38,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:12:38,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 17:12:38,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-24 17:12:38,927 INFO L87 Difference]: Start difference. First operand 175 states and 248 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:39,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:12:39,038 INFO L93 Difference]: Finished difference Result 365 states and 515 transitions. [2023-12-24 17:12:39,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 17:12:39,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2023-12-24 17:12:39,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:12:39,043 INFO L225 Difference]: With dead ends: 365 [2023-12-24 17:12:39,043 INFO L226 Difference]: Without dead ends: 256 [2023-12-24 17:12:39,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-24 17:12:39,046 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 127 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 17:12:39,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 607 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 17:12:39,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-12-24 17:12:39,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 195. [2023-12-24 17:12:39,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 164 states have (on average 1.353658536585366) internal successors, (222), 164 states have internal predecessors, (222), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-24 17:12:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 278 transitions. [2023-12-24 17:12:39,071 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 278 transitions. Word has length 116 [2023-12-24 17:12:39,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:12:39,071 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 278 transitions. [2023-12-24 17:12:39,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 278 transitions. [2023-12-24 17:12:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-24 17:12:39,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:39,073 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:39,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-24 17:12:39,296 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 17:12:39,296 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:39,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:39,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1249587293, now seen corresponding path program 1 times [2023-12-24 17:12:39,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:39,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188075655] [2023-12-24 17:12:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:39,297 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 17:12:39,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:39,298 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 17:12:39,313 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 17:12:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:39,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 17:12:39,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:39,586 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:12:39,586 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 17:12:39,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:39,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188075655] [2023-12-24 17:12:39,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188075655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 17:12:39,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 17:12:39,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 17:12:39,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966882385] [2023-12-24 17:12:39,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:12:39,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 17:12:39,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:12:39,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 17:12:39,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 17:12:39,588 INFO L87 Difference]: Start difference. First operand 195 states and 278 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:39,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:12:39,680 INFO L93 Difference]: Finished difference Result 365 states and 517 transitions. [2023-12-24 17:12:39,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 17:12:39,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-24 17:12:39,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:12:39,681 INFO L225 Difference]: With dead ends: 365 [2023-12-24 17:12:39,681 INFO L226 Difference]: Without dead ends: 253 [2023-12-24 17:12:39,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-24 17:12:39,685 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 86 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 17:12:39,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 582 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 17:12:39,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-12-24 17:12:39,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 197. [2023-12-24 17:12:39,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 166 states have (on average 1.3493975903614457) internal successors, (224), 166 states have internal predecessors, (224), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-24 17:12:39,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 280 transitions. [2023-12-24 17:12:39,699 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 280 transitions. Word has length 117 [2023-12-24 17:12:39,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:12:39,699 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 280 transitions. [2023-12-24 17:12:39,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:39,700 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 280 transitions. [2023-12-24 17:12:39,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-24 17:12:39,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:39,702 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:39,724 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 17:12:39,910 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 17:12:39,911 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:39,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:39,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1615892429, now seen corresponding path program 1 times [2023-12-24 17:12:39,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:39,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407628788] [2023-12-24 17:12:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:39,912 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 17:12:39,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:39,913 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 17:12:39,915 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 17:12:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:40,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 17:12:40,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:40,293 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:12:40,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 17:12:40,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:40,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407628788] [2023-12-24 17:12:40,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407628788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 17:12:40,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 17:12:40,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 17:12:40,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834773125] [2023-12-24 17:12:40,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:12:40,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 17:12:40,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:12:40,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 17:12:40,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 17:12:40,295 INFO L87 Difference]: Start difference. First operand 197 states and 280 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:40,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:12:40,416 INFO L93 Difference]: Finished difference Result 322 states and 457 transitions. [2023-12-24 17:12:40,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 17:12:40,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2023-12-24 17:12:40,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:12:40,418 INFO L225 Difference]: With dead ends: 322 [2023-12-24 17:12:40,418 INFO L226 Difference]: Without dead ends: 209 [2023-12-24 17:12:40,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 17:12:40,419 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 21 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 17:12:40,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 402 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 17:12:40,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-24 17:12:40,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 199. [2023-12-24 17:12:40,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 168 states have (on average 1.3452380952380953) internal successors, (226), 168 states have internal predecessors, (226), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-24 17:12:40,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 282 transitions. [2023-12-24 17:12:40,425 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 282 transitions. Word has length 118 [2023-12-24 17:12:40,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:12:40,425 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 282 transitions. [2023-12-24 17:12:40,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:40,425 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 282 transitions. [2023-12-24 17:12:40,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-24 17:12:40,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:40,426 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:40,435 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 (8)] Forceful destruction successful, exit code 0 [2023-12-24 17:12:40,626 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 17:12:40,627 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:40,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:40,627 INFO L85 PathProgramCache]: Analyzing trace with hash 806545803, now seen corresponding path program 1 times [2023-12-24 17:12:40,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:40,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414500162] [2023-12-24 17:12:40,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:40,628 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 17:12:40,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:40,629 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 17:12:40,645 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 17:12:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:40,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-24 17:12:40,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:40,915 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:12:40,915 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 17:12:40,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:40,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414500162] [2023-12-24 17:12:40,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414500162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 17:12:40,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 17:12:40,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-24 17:12:40,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620987754] [2023-12-24 17:12:40,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:12:40,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 17:12:40,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:12:40,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 17:12:40,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-24 17:12:40,940 INFO L87 Difference]: Start difference. First operand 199 states and 282 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:41,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:12:41,113 INFO L93 Difference]: Finished difference Result 327 states and 462 transitions. [2023-12-24 17:12:41,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 17:12:41,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2023-12-24 17:12:41,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:12:41,117 INFO L225 Difference]: With dead ends: 327 [2023-12-24 17:12:41,117 INFO L226 Difference]: Without dead ends: 212 [2023-12-24 17:12:41,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-24 17:12:41,118 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 24 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 17:12:41,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 531 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 17:12:41,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-12-24 17:12:41,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 201. [2023-12-24 17:12:41,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 170 states have internal predecessors, (228), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-24 17:12:41,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 284 transitions. [2023-12-24 17:12:41,127 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 284 transitions. Word has length 118 [2023-12-24 17:12:41,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:12:41,127 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 284 transitions. [2023-12-24 17:12:41,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:41,128 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 284 transitions. [2023-12-24 17:12:41,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-24 17:12:41,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:41,129 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:41,137 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 17:12:41,329 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 17:12:41,329 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:41,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:41,330 INFO L85 PathProgramCache]: Analyzing trace with hash 863804105, now seen corresponding path program 1 times [2023-12-24 17:12:41,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:41,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521619542] [2023-12-24 17:12:41,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:41,331 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 17:12:41,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:41,332 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 17:12:41,334 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 17:12:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:41,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 17:12:41,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:41,638 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:12:41,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 17:12:41,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:41,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521619542] [2023-12-24 17:12:41,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521619542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 17:12:41,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 17:12:41,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 17:12:41,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450245821] [2023-12-24 17:12:41,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:12:41,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 17:12:41,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:12:41,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 17:12:41,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-24 17:12:41,641 INFO L87 Difference]: Start difference. First operand 201 states and 284 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:41,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:12:41,831 INFO L93 Difference]: Finished difference Result 330 states and 463 transitions. [2023-12-24 17:12:41,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-24 17:12:41,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2023-12-24 17:12:41,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:12:41,834 INFO L225 Difference]: With dead ends: 330 [2023-12-24 17:12:41,834 INFO L226 Difference]: Without dead ends: 213 [2023-12-24 17:12:41,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-24 17:12:41,835 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 19 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 17:12:41,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 653 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 17:12:41,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-12-24 17:12:41,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 203. [2023-12-24 17:12:41,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 172 states have (on average 1.3372093023255813) internal successors, (230), 172 states have internal predecessors, (230), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-24 17:12:41,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 286 transitions. [2023-12-24 17:12:41,846 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 286 transitions. Word has length 118 [2023-12-24 17:12:41,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:12:41,847 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 286 transitions. [2023-12-24 17:12:41,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:41,847 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 286 transitions. [2023-12-24 17:12:41,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-24 17:12:41,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:41,848 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:41,856 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 17:12:42,055 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 17:12:42,056 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:42,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:42,056 INFO L85 PathProgramCache]: Analyzing trace with hash 863863687, now seen corresponding path program 1 times [2023-12-24 17:12:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:42,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1662045115] [2023-12-24 17:12:42,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:42,057 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 17:12:42,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:42,058 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 17:12:42,065 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 17:12:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:42,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-24 17:12:42,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:42,906 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 28 treesize of output 24 [2023-12-24 17:12:42,963 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 33 treesize of output 25 [2023-12-24 17:12:42,967 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 29 treesize of output 21 [2023-12-24 17:12:43,010 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 27 treesize of output 19 [2023-12-24 17:12:43,124 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-24 17:12:43,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:12:47,114 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:12:47,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:47,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1662045115] [2023-12-24 17:12:47,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1662045115] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 17:12:47,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 17:12:47,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 17 [2023-12-24 17:12:47,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504546998] [2023-12-24 17:12:47,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:12:47,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-24 17:12:47,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:12:47,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-24 17:12:47,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-24 17:12:47,116 INFO L87 Difference]: Start difference. First operand 203 states and 286 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:48,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:12:48,074 INFO L93 Difference]: Finished difference Result 444 states and 621 transitions. [2023-12-24 17:12:48,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-24 17:12:48,074 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2023-12-24 17:12:48,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:12:48,076 INFO L225 Difference]: With dead ends: 444 [2023-12-24 17:12:48,076 INFO L226 Difference]: Without dead ends: 325 [2023-12-24 17:12:48,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 218 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2023-12-24 17:12:48,077 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 285 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-24 17:12:48,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1355 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-24 17:12:48,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-24 17:12:48,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 301. [2023-12-24 17:12:48,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 263 states have (on average 1.349809885931559) internal successors, (355), 264 states have internal predecessors, (355), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-24 17:12:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 423 transitions. [2023-12-24 17:12:48,086 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 423 transitions. Word has length 118 [2023-12-24 17:12:48,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:12:48,086 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 423 transitions. [2023-12-24 17:12:48,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:48,086 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 423 transitions. [2023-12-24 17:12:48,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-24 17:12:48,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:48,087 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:48,108 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 17:12:48,296 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 17:12:48,296 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:48,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:48,297 INFO L85 PathProgramCache]: Analyzing trace with hash 310824816, now seen corresponding path program 1 times [2023-12-24 17:12:48,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:48,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503091617] [2023-12-24 17:12:48,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:48,297 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 17:12:48,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:48,298 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 17:12:48,301 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 17:12:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:48,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 17:12:48,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 88 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-24 17:12:48,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:12:48,863 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:12:48,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:48,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503091617] [2023-12-24 17:12:48,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503091617] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 17:12:48,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 17:12:48,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-12-24 17:12:48,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52657388] [2023-12-24 17:12:48,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:12:48,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 17:12:48,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:12:48,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 17:12:48,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-24 17:12:48,864 INFO L87 Difference]: Start difference. First operand 301 states and 423 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:48,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:12:48,941 INFO L93 Difference]: Finished difference Result 661 states and 906 transitions. [2023-12-24 17:12:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 17:12:48,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2023-12-24 17:12:48,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:12:48,944 INFO L225 Difference]: With dead ends: 661 [2023-12-24 17:12:48,944 INFO L226 Difference]: Without dead ends: 438 [2023-12-24 17:12:48,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-24 17:12:48,945 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 98 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 17:12:48,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 627 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 17:12:48,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-12-24 17:12:48,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 286. [2023-12-24 17:12:48,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 248 states have (on average 1.3346774193548387) internal successors, (331), 249 states have internal predecessors, (331), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-24 17:12:48,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 399 transitions. [2023-12-24 17:12:48,953 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 399 transitions. Word has length 119 [2023-12-24 17:12:48,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:12:48,953 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 399 transitions. [2023-12-24 17:12:48,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:12:48,953 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 399 transitions. [2023-12-24 17:12:48,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-24 17:12:48,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:12:48,954 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:48,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-24 17:12:49,161 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 17:12:49,161 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:12:49,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:12:49,161 INFO L85 PathProgramCache]: Analyzing trace with hash -537574160, now seen corresponding path program 1 times [2023-12-24 17:12:49,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:12:49,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818980482] [2023-12-24 17:12:49,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:49,162 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 17:12:49,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:12:49,164 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 17:12:49,165 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 [2023-12-24 17:12:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:12:49,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-24 17:12:49,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:12:50,776 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 18 treesize of output 19 [2023-12-24 17:12:55,056 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 17:12:55,056 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 156 treesize of output 86 [2023-12-24 17:12:55,060 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 167 treesize of output 107 [2023-12-24 17:12:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-24 17:12:55,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:12:59,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:12:59,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818980482] [2023-12-24 17:12:59,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818980482] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:12:59,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [273671174] [2023-12-24 17:12:59,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:12:59,968 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 17:12:59,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 17:13:00,013 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 17:13:00,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-24 17:13:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:13:00,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-24 17:13:00,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:13:01,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 17:13:04,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-24 17:13:11,516 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 17:13:11,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 86 [2023-12-24 17:13:11,520 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 167 treesize of output 107 [2023-12-24 17:13:11,744 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-24 17:13:11,744 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:13:20,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [273671174] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:13:20,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 17:13:20,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-12-24 17:13:20,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833048919] [2023-12-24 17:13:20,901 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 17:13:20,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-24 17:13:20,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:13:20,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-24 17:13:20,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2023-12-24 17:13:20,902 INFO L87 Difference]: Start difference. First operand 286 states and 399 transitions. Second operand has 16 states, 16 states have (on average 6.8125) internal successors, (109), 15 states have internal predecessors, (109), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-12-24 17:13:25,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:13:27,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:13:33,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:13:33,179 INFO L93 Difference]: Finished difference Result 573 states and 793 transitions. [2023-12-24 17:13:33,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-24 17:13:33,185 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.8125) internal successors, (109), 15 states have internal predecessors, (109), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 120 [2023-12-24 17:13:33,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:13:33,189 INFO L225 Difference]: With dead ends: 573 [2023-12-24 17:13:33,189 INFO L226 Difference]: Without dead ends: 571 [2023-12-24 17:13:33,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 276 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=153, Invalid=603, Unknown=0, NotChecked=0, Total=756 [2023-12-24 17:13:33,190 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 405 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-12-24 17:13:33,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 1055 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-12-24 17:13:33,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-24 17:13:33,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 553. [2023-12-24 17:13:33,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 478 states have (on average 1.3284518828451883) internal successors, (635), 482 states have internal predecessors, (635), 66 states have call successors, (66), 8 states have call predecessors, (66), 8 states have return successors, (66), 62 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-24 17:13:33,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 767 transitions. [2023-12-24 17:13:33,225 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 767 transitions. Word has length 120 [2023-12-24 17:13:33,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:13:33,225 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 767 transitions. [2023-12-24 17:13:33,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.8125) internal successors, (109), 15 states have internal predecessors, (109), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-12-24 17:13:33,226 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 767 transitions. [2023-12-24 17:13:33,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-24 17:13:33,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:13:33,227 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:13:33,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-12-24 17:13:33,441 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 0 [2023-12-24 17:13:33,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 17:13:33,635 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:13:33,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:13:33,636 INFO L85 PathProgramCache]: Analyzing trace with hash -537514578, now seen corresponding path program 1 times [2023-12-24 17:13:33,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:13:33,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544114651] [2023-12-24 17:13:33,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:13:33,636 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 17:13:33,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:13:33,637 INFO L229 MonitoredProcess]: Starting monitored process 15 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 17:13:33,639 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 (15)] Waiting until timeout for monitored process [2023-12-24 17:13:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:13:33,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-24 17:13:33,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:13:34,095 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 17 treesize of output 13 [2023-12-24 17:13:34,110 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 17 treesize of output 13 [2023-12-24 17:13:34,232 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 54 treesize of output 42 [2023-12-24 17:13:34,306 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 51 treesize of output 39 [2023-12-24 17:13:34,309 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 39 treesize of output 27 [2023-12-24 17:13:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-12-24 17:13:34,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:13:34,561 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:13:34,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:13:34,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544114651] [2023-12-24 17:13:34,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544114651] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 17:13:34,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 17:13:34,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2023-12-24 17:13:34,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621573510] [2023-12-24 17:13:34,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:13:34,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-24 17:13:34,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:13:34,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-24 17:13:34,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-12-24 17:13:34,563 INFO L87 Difference]: Start difference. First operand 553 states and 767 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:13:34,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:13:34,892 INFO L93 Difference]: Finished difference Result 987 states and 1348 transitions. [2023-12-24 17:13:34,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 17:13:34,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2023-12-24 17:13:34,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:13:34,894 INFO L225 Difference]: With dead ends: 987 [2023-12-24 17:13:34,894 INFO L226 Difference]: Without dead ends: 579 [2023-12-24 17:13:34,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-24 17:13:34,897 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 122 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 17:13:34,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 745 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 17:13:34,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-12-24 17:13:34,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 577. [2023-12-24 17:13:34,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 496 states have (on average 1.3084677419354838) internal successors, (649), 500 states have internal predecessors, (649), 66 states have call successors, (66), 14 states have call predecessors, (66), 14 states have return successors, (66), 62 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-24 17:13:34,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 781 transitions. [2023-12-24 17:13:34,931 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 781 transitions. Word has length 120 [2023-12-24 17:13:34,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:13:34,932 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 781 transitions. [2023-12-24 17:13:34,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:13:34,932 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 781 transitions. [2023-12-24 17:13:34,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-24 17:13:34,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:13:34,933 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:13:34,942 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 (15)] Ended with exit code 0 [2023-12-24 17:13:35,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 17:13:35,141 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:13:35,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:13:35,141 INFO L85 PathProgramCache]: Analyzing trace with hash -480256276, now seen corresponding path program 1 times [2023-12-24 17:13:35,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:13:35,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268067178] [2023-12-24 17:13:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:13:35,142 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 17:13:35,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:13:35,143 INFO L229 MonitoredProcess]: Starting monitored process 16 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 17:13:35,177 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 (16)] Waiting until timeout for monitored process [2023-12-24 17:13:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:13:35,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-24 17:13:35,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:13:36,908 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 18 treesize of output 19 [2023-12-24 17:13:40,660 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 17:13:40,660 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 156 treesize of output 86 [2023-12-24 17:13:40,675 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 167 treesize of output 107 [2023-12-24 17:13:40,991 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-24 17:13:40,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:13:46,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:13:46,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268067178] [2023-12-24 17:13:46,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268067178] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:13:46,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1017808229] [2023-12-24 17:13:46,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:13:46,195 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 17:13:46,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 17:13:46,196 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 17:13:46,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-24 17:13:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:13:46,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-24 17:13:46,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:13:48,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 17:13:50,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-24 17:13:54,785 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 17:13:54,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 86 [2023-12-24 17:13:54,789 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 167 treesize of output 107 [2023-12-24 17:13:55,082 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-24 17:13:55,082 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:13:59,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1017808229] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:13:59,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 17:13:59,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-12-24 17:13:59,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165148281] [2023-12-24 17:13:59,008 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 17:13:59,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-24 17:13:59,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:13:59,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-24 17:13:59,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2023-12-24 17:13:59,010 INFO L87 Difference]: Start difference. First operand 577 states and 781 transitions. Second operand has 16 states, 16 states have (on average 6.5625) internal successors, (105), 15 states have internal predecessors, (105), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-12-24 17:14:04,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:14:11,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:14:11,354 INFO L93 Difference]: Finished difference Result 1585 states and 2127 transitions. [2023-12-24 17:14:11,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-24 17:14:11,360 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.5625) internal successors, (105), 15 states have internal predecessors, (105), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 120 [2023-12-24 17:14:11,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:14:11,367 INFO L225 Difference]: With dead ends: 1585 [2023-12-24 17:14:11,367 INFO L226 Difference]: Without dead ends: 1161 [2023-12-24 17:14:11,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 279 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2023-12-24 17:14:11,372 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 601 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-24 17:14:11,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 1095 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-12-24 17:14:11,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2023-12-24 17:14:11,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1129. [2023-12-24 17:14:11,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 968 states have (on average 1.296487603305785) internal successors, (1255), 980 states have internal predecessors, (1255), 128 states have call successors, (128), 32 states have call predecessors, (128), 32 states have return successors, (128), 116 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-24 17:14:11,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1511 transitions. [2023-12-24 17:14:11,432 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1511 transitions. Word has length 120 [2023-12-24 17:14:11,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:14:11,432 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1511 transitions. [2023-12-24 17:14:11,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.5625) internal successors, (105), 15 states have internal predecessors, (105), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-12-24 17:14:11,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1511 transitions. [2023-12-24 17:14:11,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-24 17:14:11,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:14:11,434 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:14:11,452 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 (16)] Forceful destruction successful, exit code 0 [2023-12-24 17:14:11,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-12-24 17:14:11,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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=3,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 17:14:11,860 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:14:11,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:14:11,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1289602902, now seen corresponding path program 1 times [2023-12-24 17:14:11,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:14:11,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408787157] [2023-12-24 17:14:11,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:14:11,861 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 17:14:11,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:14:11,862 INFO L229 MonitoredProcess]: Starting monitored process 18 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 17:14:11,863 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 (18)] Waiting until timeout for monitored process [2023-12-24 17:14:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:14:12,175 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 17:14:12,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:14:12,344 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 17 treesize of output 13 [2023-12-24 17:14:12,399 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 54 treesize of output 42 [2023-12-24 17:14:12,404 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 42 treesize of output 30 [2023-12-24 17:14:12,442 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-12-24 17:14:12,442 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:14:12,552 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:14:12,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:14:12,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408787157] [2023-12-24 17:14:12,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408787157] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 17:14:12,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 17:14:12,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2023-12-24 17:14:12,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573106816] [2023-12-24 17:14:12,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:14:12,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 17:14:12,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:14:12,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 17:14:12,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-24 17:14:12,553 INFO L87 Difference]: Start difference. First operand 1129 states and 1511 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:14:13,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:14:13,023 INFO L93 Difference]: Finished difference Result 2619 states and 3419 transitions. [2023-12-24 17:14:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 17:14:13,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2023-12-24 17:14:13,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:14:13,041 INFO L225 Difference]: With dead ends: 2619 [2023-12-24 17:14:13,041 INFO L226 Difference]: Without dead ends: 1773 [2023-12-24 17:14:13,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-12-24 17:14:13,042 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 120 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-24 17:14:13,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 743 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-24 17:14:13,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2023-12-24 17:14:13,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1337. [2023-12-24 17:14:13,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1176 states have (on average 1.2746598639455782) internal successors, (1499), 1188 states have internal predecessors, (1499), 128 states have call successors, (128), 32 states have call predecessors, (128), 32 states have return successors, (128), 116 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-24 17:14:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1755 transitions. [2023-12-24 17:14:13,121 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1755 transitions. Word has length 120 [2023-12-24 17:14:13,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:14:13,122 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1755 transitions. [2023-12-24 17:14:13,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:14:13,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1755 transitions. [2023-12-24 17:14:13,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-24 17:14:13,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:14:13,123 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:14:13,132 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 (18)] Forceful destruction successful, exit code 0 [2023-12-24 17:14:13,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 17:14:13,332 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:14:13,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:14:13,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1120814830, now seen corresponding path program 1 times [2023-12-24 17:14:13,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:14:13,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327146207] [2023-12-24 17:14:13,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:14:13,333 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 17:14:13,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:14:13,334 INFO L229 MonitoredProcess]: Starting monitored process 19 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 17:14:13,335 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 (19)] Waiting until timeout for monitored process [2023-12-24 17:14:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:14:13,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 17:14:13,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:14:13,637 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-24 17:14:13,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 17:14:13,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:14:13,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327146207] [2023-12-24 17:14:13,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327146207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 17:14:13,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 17:14:13,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-24 17:14:13,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757216501] [2023-12-24 17:14:13,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:14:13,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 17:14:13,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:14:13,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 17:14:13,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-24 17:14:13,639 INFO L87 Difference]: Start difference. First operand 1337 states and 1755 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-24 17:14:13,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:14:13,768 INFO L93 Difference]: Finished difference Result 2523 states and 3308 transitions. [2023-12-24 17:14:13,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 17:14:13,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2023-12-24 17:14:13,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:14:13,772 INFO L225 Difference]: With dead ends: 2523 [2023-12-24 17:14:13,772 INFO L226 Difference]: Without dead ends: 1361 [2023-12-24 17:14:13,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-24 17:14:13,775 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 7 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 17:14:13,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 393 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 17:14:13,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2023-12-24 17:14:13,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1337. [2023-12-24 17:14:13,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1176 states have (on average 1.2695578231292517) internal successors, (1493), 1188 states have internal predecessors, (1493), 128 states have call successors, (128), 32 states have call predecessors, (128), 32 states have return successors, (128), 116 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-24 17:14:13,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1749 transitions. [2023-12-24 17:14:13,874 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1749 transitions. Word has length 120 [2023-12-24 17:14:13,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:14:13,875 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1749 transitions. [2023-12-24 17:14:13,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-24 17:14:13,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1749 transitions. [2023-12-24 17:14:13,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-24 17:14:13,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:14:13,877 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:14:13,885 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 (19)] Ended with exit code 0 [2023-12-24 17:14:14,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 17:14:14,085 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:14:14,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:14:14,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1530883224, now seen corresponding path program 1 times [2023-12-24 17:14:14,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:14:14,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833644758] [2023-12-24 17:14:14,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:14:14,086 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 17:14:14,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:14:14,087 INFO L229 MonitoredProcess]: Starting monitored process 20 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 17:14:14,095 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 (20)] Waiting until timeout for monitored process [2023-12-24 17:14:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:14:14,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 17:14:14,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:14:14,488 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 79 treesize of output 43 [2023-12-24 17:14:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 132 proven. 8 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-12-24 17:14:14,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:14:14,708 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 49 treesize of output 25 [2023-12-24 17:14:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-24 17:14:14,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:14:14,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833644758] [2023-12-24 17:14:14,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833644758] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-24 17:14:14,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 17:14:14,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2023-12-24 17:14:14,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746011967] [2023-12-24 17:14:14,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 17:14:14,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-24 17:14:14,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:14:14,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-24 17:14:14,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-24 17:14:14,716 INFO L87 Difference]: Start difference. First operand 1337 states and 1749 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2023-12-24 17:14:16,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 17:14:18,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:14:18,498 INFO L93 Difference]: Finished difference Result 2594 states and 3370 transitions. [2023-12-24 17:14:18,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-24 17:14:18,503 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) Word has length 122 [2023-12-24 17:14:18,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:14:18,507 INFO L225 Difference]: With dead ends: 2594 [2023-12-24 17:14:18,507 INFO L226 Difference]: Without dead ends: 1369 [2023-12-24 17:14:18,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2023-12-24 17:14:18,509 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 144 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-24 17:14:18,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 547 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-24 17:14:18,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2023-12-24 17:14:18,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1327. [2023-12-24 17:14:18,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1166 states have (on average 1.2632933104631219) internal successors, (1473), 1178 states have internal predecessors, (1473), 128 states have call successors, (128), 32 states have call predecessors, (128), 32 states have return successors, (128), 116 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-24 17:14:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1729 transitions. [2023-12-24 17:14:18,642 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1729 transitions. Word has length 122 [2023-12-24 17:14:18,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:14:18,643 INFO L495 AbstractCegarLoop]: Abstraction has 1327 states and 1729 transitions. [2023-12-24 17:14:18,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (27), 3 states have call predecessors, (27), 4 states have call successors, (27) [2023-12-24 17:14:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1729 transitions. [2023-12-24 17:14:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-24 17:14:18,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:14:18,644 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:14:18,654 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 (20)] Forceful destruction successful, exit code 0 [2023-12-24 17:14:18,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 17:14:18,845 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:14:18,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:14:18,845 INFO L85 PathProgramCache]: Analyzing trace with hash 120655474, now seen corresponding path program 1 times [2023-12-24 17:14:18,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:14:18,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197342720] [2023-12-24 17:14:18,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:14:18,846 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 17:14:18,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:14:18,847 INFO L229 MonitoredProcess]: Starting monitored process 21 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 17:14:18,882 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 (21)] Waiting until timeout for monitored process [2023-12-24 17:14:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:14:19,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-24 17:14:19,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:14:20,595 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 18 treesize of output 19 [2023-12-24 17:14:24,354 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 17:14:24,355 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 156 treesize of output 86 [2023-12-24 17:14:24,358 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 165 treesize of output 105 [2023-12-24 17:14:24,684 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 10 proven. 162 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-12-24 17:14:24,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:14:30,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:14:30,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197342720] [2023-12-24 17:14:30,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197342720] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:14:30,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1005237552] [2023-12-24 17:14:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:14:30,413 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 17:14:30,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 17:14:30,414 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 17:14:30,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-24 17:14:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:14:31,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-24 17:14:31,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:14:32,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 17:14:35,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-24 17:14:39,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 17:14:39,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 86 [2023-12-24 17:14:39,514 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 165 treesize of output 105 [2023-12-24 17:14:39,783 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 10 proven. 162 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-12-24 17:14:39,784 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:14:43,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1005237552] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:14:43,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 17:14:43,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2023-12-24 17:14:43,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178006660] [2023-12-24 17:14:43,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 17:14:43,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-24 17:14:43,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:14:43,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-24 17:14:43,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2023-12-24 17:14:43,894 INFO L87 Difference]: Start difference. First operand 1327 states and 1729 transitions. Second operand has 22 states, 20 states have (on average 5.75) internal successors, (115), 19 states have internal predecessors, (115), 6 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-12-24 17:14:49,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:14:51,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:15:00,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:15:01,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:15:01,787 INFO L93 Difference]: Finished difference Result 3021 states and 3905 transitions. [2023-12-24 17:15:01,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-24 17:15:01,787 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 5.75) internal successors, (115), 19 states have internal predecessors, (115), 6 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) Word has length 122 [2023-12-24 17:15:01,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:15:01,792 INFO L225 Difference]: With dead ends: 3021 [2023-12-24 17:15:01,793 INFO L226 Difference]: Without dead ends: 2011 [2023-12-24 17:15:01,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 277 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=334, Invalid=1226, Unknown=0, NotChecked=0, Total=1560 [2023-12-24 17:15:01,795 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 443 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-24 17:15:01,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 1296 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-12-24 17:15:01,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2023-12-24 17:15:01,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1341. [2023-12-24 17:15:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1178 states have (on average 1.2606112054329373) internal successors, (1485), 1190 states have internal predecessors, (1485), 128 states have call successors, (128), 34 states have call predecessors, (128), 34 states have return successors, (128), 116 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-24 17:15:01,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1741 transitions. [2023-12-24 17:15:01,866 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1741 transitions. Word has length 122 [2023-12-24 17:15:01,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:15:01,866 INFO L495 AbstractCegarLoop]: Abstraction has 1341 states and 1741 transitions. [2023-12-24 17:15:01,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 5.75) internal successors, (115), 19 states have internal predecessors, (115), 6 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-12-24 17:15:01,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1741 transitions. [2023-12-24 17:15:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-24 17:15:01,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:15:01,868 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:15:01,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-12-24 17:15:02,085 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 (21)] Forceful destruction successful, exit code 0 [2023-12-24 17:15:02,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,21 /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 17:15:02,283 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:15:02,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:15:02,283 INFO L85 PathProgramCache]: Analyzing trace with hash -936075728, now seen corresponding path program 1 times [2023-12-24 17:15:02,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:15:02,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645489263] [2023-12-24 17:15:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:15:02,284 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 17:15:02,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:15:02,293 INFO L229 MonitoredProcess]: Starting monitored process 23 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 17:15:02,295 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 (23)] Waiting until timeout for monitored process [2023-12-24 17:15:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:15:02,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-24 17:15:02,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:15:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-24 17:15:02,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 17:15:02,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:15:02,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645489263] [2023-12-24 17:15:02,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645489263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 17:15:02,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 17:15:02,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 17:15:02,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792437005] [2023-12-24 17:15:02,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:15:02,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 17:15:02,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:15:02,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 17:15:02,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-24 17:15:02,583 INFO L87 Difference]: Start difference. First operand 1341 states and 1741 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-24 17:15:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:15:02,806 INFO L93 Difference]: Finished difference Result 1917 states and 2466 transitions. [2023-12-24 17:15:02,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-24 17:15:02,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2023-12-24 17:15:02,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:15:02,809 INFO L225 Difference]: With dead ends: 1917 [2023-12-24 17:15:02,809 INFO L226 Difference]: Without dead ends: 733 [2023-12-24 17:15:02,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-24 17:15:02,811 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 7 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-24 17:15:02,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 531 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-24 17:15:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-12-24 17:15:02,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 711. [2023-12-24 17:15:02,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 624 states have (on average 1.248397435897436) internal successors, (779), 628 states have internal predecessors, (779), 66 states have call successors, (66), 20 states have call predecessors, (66), 20 states have return successors, (66), 62 states have call predecessors, (66), 66 states have call successors, (66) [2023-12-24 17:15:02,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 911 transitions. [2023-12-24 17:15:02,848 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 911 transitions. Word has length 122 [2023-12-24 17:15:02,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:15:02,848 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 911 transitions. [2023-12-24 17:15:02,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-24 17:15:02,849 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 911 transitions. [2023-12-24 17:15:02,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-24 17:15:02,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:15:02,849 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:15:02,856 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 (23)] Forceful destruction successful, exit code 0 [2023-12-24 17:15:03,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 17:15:03,056 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:15:03,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:15:03,057 INFO L85 PathProgramCache]: Analyzing trace with hash 442282154, now seen corresponding path program 1 times [2023-12-24 17:15:03,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:15:03,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928658271] [2023-12-24 17:15:03,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:15:03,057 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 17:15:03,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:15:03,058 INFO L229 MonitoredProcess]: Starting monitored process 24 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 17:15:03,060 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 (24)] Waiting until timeout for monitored process [2023-12-24 17:15:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:15:03,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-24 17:15:03,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:15:04,982 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 18 treesize of output 19 [2023-12-24 17:15:09,550 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 17:15:09,550 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 156 treesize of output 86 [2023-12-24 17:15:09,554 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 165 treesize of output 105 [2023-12-24 17:15:09,909 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 11 proven. 129 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-12-24 17:15:09,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:15:14,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:15:14,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928658271] [2023-12-24 17:15:14,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928658271] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:15:14,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [321317684] [2023-12-24 17:15:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:15:14,977 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 17:15:14,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 17:15:14,978 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 17:15:14,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-24 17:15:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:15:15,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-24 17:15:15,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:15:16,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 17:15:20,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-24 17:15:28,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 17:15:28,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 142 treesize of output 86 [2023-12-24 17:15:28,805 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 165 treesize of output 105 [2023-12-24 17:15:29,023 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 11 proven. 129 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-12-24 17:15:29,024 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:15:39,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [321317684] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:15:39,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 17:15:39,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2023-12-24 17:15:39,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901941898] [2023-12-24 17:15:39,015 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 17:15:39,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-24 17:15:39,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:15:39,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-24 17:15:39,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2023-12-24 17:15:39,016 INFO L87 Difference]: Start difference. First operand 711 states and 911 transitions. Second operand has 22 states, 20 states have (on average 5.95) internal successors, (119), 19 states have internal predecessors, (119), 6 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-12-24 17:15:46,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:15:54,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:15:56,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:15:57,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:15:57,682 INFO L93 Difference]: Finished difference Result 747 states and 944 transitions. [2023-12-24 17:15:57,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-24 17:15:57,683 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 5.95) internal successors, (119), 19 states have internal predecessors, (119), 6 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) Word has length 122 [2023-12-24 17:15:57,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:15:57,685 INFO L225 Difference]: With dead ends: 747 [2023-12-24 17:15:57,685 INFO L226 Difference]: Without dead ends: 745 [2023-12-24 17:15:57,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 273 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=358, Invalid=1448, Unknown=0, NotChecked=0, Total=1806 [2023-12-24 17:15:57,702 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 344 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-12-24 17:15:57,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1151 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-12-24 17:15:57,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-12-24 17:15:57,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 378. [2023-12-24 17:15:57,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 331 states have (on average 1.2386706948640482) internal successors, (410), 332 states have internal predecessors, (410), 34 states have call successors, (34), 12 states have call predecessors, (34), 12 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-24 17:15:57,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 478 transitions. [2023-12-24 17:15:57,729 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 478 transitions. Word has length 122 [2023-12-24 17:15:57,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:15:57,729 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 478 transitions. [2023-12-24 17:15:57,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 5.95) internal successors, (119), 19 states have internal predecessors, (119), 6 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2023-12-24 17:15:57,729 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 478 transitions. [2023-12-24 17:15:57,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-24 17:15:57,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:15:57,730 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:15:57,752 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 (24)] Forceful destruction successful, exit code 0 [2023-12-24 17:15:57,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-12-24 17:15:58,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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=3,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 17:15:58,145 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:15:58,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:15:58,146 INFO L85 PathProgramCache]: Analyzing trace with hash -937902212, now seen corresponding path program 1 times [2023-12-24 17:15:58,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:15:58,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668529365] [2023-12-24 17:15:58,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:15:58,146 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 17:15:58,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:15:58,147 INFO L229 MonitoredProcess]: Starting monitored process 26 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 17:15:58,149 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 (26)] Waiting until timeout for monitored process [2023-12-24 17:15:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:15:58,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 17:15:58,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:15:58,704 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 27 treesize of output 15 [2023-12-24 17:15:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 88 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-24 17:15:58,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:15:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-24 17:15:58,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:15:58,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668529365] [2023-12-24 17:15:58,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668529365] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 17:15:58,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 17:15:58,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-24 17:15:58,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901301830] [2023-12-24 17:15:58,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 17:15:58,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-24 17:15:58,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:15:58,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-24 17:15:58,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-24 17:15:58,834 INFO L87 Difference]: Start difference. First operand 378 states and 478 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:15:58,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:15:58,925 INFO L93 Difference]: Finished difference Result 779 states and 974 transitions. [2023-12-24 17:15:58,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-24 17:15:58,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 124 [2023-12-24 17:15:58,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:15:58,927 INFO L225 Difference]: With dead ends: 779 [2023-12-24 17:15:58,927 INFO L226 Difference]: Without dead ends: 496 [2023-12-24 17:15:58,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-24 17:15:58,929 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 102 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 17:15:58,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 366 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 17:15:58,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-12-24 17:15:58,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 378. [2023-12-24 17:15:58,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 331 states have (on average 1.229607250755287) internal successors, (407), 332 states have internal predecessors, (407), 34 states have call successors, (34), 12 states have call predecessors, (34), 12 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-24 17:15:58,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 475 transitions. [2023-12-24 17:15:58,954 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 475 transitions. Word has length 124 [2023-12-24 17:15:58,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:15:58,954 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 475 transitions. [2023-12-24 17:15:58,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-24 17:15:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 475 transitions. [2023-12-24 17:15:58,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-24 17:15:58,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:15:58,955 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:15:58,969 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 (26)] Forceful destruction successful, exit code 0 [2023-12-24 17:15:59,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 17:15:59,163 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:15:59,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:15:59,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1156756930, now seen corresponding path program 1 times [2023-12-24 17:15:59,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:15:59,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670584956] [2023-12-24 17:15:59,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:15:59,164 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 17:15:59,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:15:59,165 INFO L229 MonitoredProcess]: Starting monitored process 27 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 17:15:59,168 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 (27)] Waiting until timeout for monitored process [2023-12-24 17:15:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:15:59,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-24 17:15:59,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:16:01,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 46 [2023-12-24 17:16:06,552 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 47 treesize of output 23 [2023-12-24 17:16:11,327 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-24 17:16:11,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:16:28,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:16:28,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670584956] [2023-12-24 17:16:28,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670584956] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:16:28,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1530281834] [2023-12-24 17:16:28,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:16:28,588 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 17:16:28,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 17:16:28,605 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 17:16:28,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-24 17:16:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:16:29,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-24 17:16:29,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:16:32,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 17:16:41,046 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 112 treesize of output 64 [2023-12-24 17:16:44,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2023-12-24 17:16:47,985 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-24 17:16:47,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:17:12,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1530281834] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:17:12,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 17:17:12,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-24 17:17:12,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18308890] [2023-12-24 17:17:12,253 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 17:17:12,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-24 17:17:12,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:17:12,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-24 17:17:12,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=428, Unknown=1, NotChecked=0, Total=506 [2023-12-24 17:17:12,255 INFO L87 Difference]: Start difference. First operand 378 states and 475 transitions. Second operand has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 16 states have internal predecessors, (97), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-12-24 17:17:35,506 WARN L293 SmtUtils]: Spent 11.60s on a formula simplification. DAG size of input: 92 DAG size of output: 88 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 17:17:38,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-24 17:17:44,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 17:17:44,664 INFO L93 Difference]: Finished difference Result 1327 states and 1671 transitions. [2023-12-24 17:17:44,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-24 17:17:44,667 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 16 states have internal predecessors, (97), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 124 [2023-12-24 17:17:44,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 17:17:44,670 INFO L225 Difference]: With dead ends: 1327 [2023-12-24 17:17:44,670 INFO L226 Difference]: Without dead ends: 1038 [2023-12-24 17:17:44,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 290 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 72.9s TimeCoverageRelationStatistics Valid=171, Invalid=698, Unknown=1, NotChecked=0, Total=870 [2023-12-24 17:17:44,671 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 382 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-12-24 17:17:44,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1211 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2023-12-24 17:17:44,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2023-12-24 17:17:44,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 792. [2023-12-24 17:17:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 686 states have (on average 1.2317784256559767) internal successors, (845), 689 states have internal predecessors, (845), 79 states have call successors, (79), 26 states have call predecessors, (79), 26 states have return successors, (79), 76 states have call predecessors, (79), 79 states have call successors, (79) [2023-12-24 17:17:44,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1003 transitions. [2023-12-24 17:17:44,732 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1003 transitions. Word has length 124 [2023-12-24 17:17:44,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 17:17:44,732 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 1003 transitions. [2023-12-24 17:17:44,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 16 states have internal predecessors, (97), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-12-24 17:17:44,732 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1003 transitions. [2023-12-24 17:17:44,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-24 17:17:44,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 17:17:44,733 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:17:44,740 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 (27)] Forceful destruction successful, exit code 0 [2023-12-24 17:17:44,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-24 17:17:45,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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=3,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 17:17:45,141 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 17:17:45,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 17:17:45,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1016208320, now seen corresponding path program 1 times [2023-12-24 17:17:45,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 17:17:45,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067301323] [2023-12-24 17:17:45,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:17:45,142 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 17:17:45,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 17:17:45,143 INFO L229 MonitoredProcess]: Starting monitored process 29 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 17:17:45,171 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 (29)] Waiting until timeout for monitored process [2023-12-24 17:17:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:17:45,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-24 17:17:45,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:17:48,256 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 91 treesize of output 55 [2023-12-24 17:17:54,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2023-12-24 17:17:57,796 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-24 17:17:57,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:18:53,883 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-24 17:18:53,883 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 111 treesize of output 86 [2023-12-24 17:19:04,889 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (let ((.cse7 (select (select |c_#memory_int#1| c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7)))) (.cse3 (fp.neg ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (.cse5 (fp.neg ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))))) (let ((.cse0 (forall ((v_arrayElimCell_45 (_ BitVec 32))) (let ((.cse6 (fp ((_ extract 31 31) v_arrayElimCell_45) ((_ extract 30 23) v_arrayElimCell_45) ((_ extract 22 0) v_arrayElimCell_45)))) (or (not (fp.geq .cse6 .cse3)) (not (fp.leq .cse6 .cse5)))))) (.cse1 (forall ((v_arrayElimCell_44 (_ BitVec 32))) (fp.leq (fp.mul c_currentRoundingMode .cse4 (fp ((_ extract 31 31) v_arrayElimCell_44) ((_ extract 30 23) v_arrayElimCell_44) ((_ extract 22 0) v_arrayElimCell_44))) .cse4)))) (and (or .cse0 (= c_~var_1_3_Pointer~0.offset |c_~#var_1_3~0.offset|) .cse1) (or .cse0 (= |c_~#var_1_3~0.base| c_~var_1_3_Pointer~0.base) .cse1) (forall ((v_arrayElimCell_44 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) v_arrayElimCell_44) ((_ extract 30 23) v_arrayElimCell_44) ((_ extract 22 0) v_arrayElimCell_44)))) (or (not (fp.geq .cse2 .cse3)) (fp.leq (fp.mul c_currentRoundingMode .cse4 .cse2) .cse4) (not (fp.leq .cse2 .cse5)))))))) is different from false [2023-12-24 17:19:10,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 17:19:10,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067301323] [2023-12-24 17:19:10,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067301323] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:19:10,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1527277215] [2023-12-24 17:19:10,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 17:19:10,876 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 17:19:10,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 17:19:10,878 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 17:19:10,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-24 17:19:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 17:19:11,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-24 17:19:11,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 17:19:21,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-24 17:20:23,573 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 91 treesize of output 55 [2023-12-24 17:20:35,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 41 [2023-12-24 17:20:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-24 17:20:39,309 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 17:21:29,861 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 126 treesize of output 114 [2023-12-24 17:21:40,707 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (let ((.cse8 (select (select |c_#memory_int#1| c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset))) (fp ((_ extract 31 31) .cse8) ((_ extract 30 23) .cse8) ((_ extract 22 0) .cse8)))) (.cse0 (= |c_~#var_1_3~0.base| c_~var_1_3_Pointer~0.base)) (.cse1 (= c_~var_1_3_Pointer~0.offset |c_~#var_1_3~0.offset|))) (or (and (or (not .cse0) (not .cse1)) (forall ((v_arrayElimCell_48 (_ BitVec 32))) (fp.leq (fp.mul c_currentRoundingMode .cse2 (fp ((_ extract 31 31) v_arrayElimCell_48) ((_ extract 30 23) v_arrayElimCell_48) ((_ extract 22 0) v_arrayElimCell_48))) .cse2))) (let ((.cse4 (fp.neg ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (.cse5 (fp.neg ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))))) (let ((.cse6 (forall ((|v_skolemized_q#valueAsBitvector_138| (_ BitVec 32))) (let ((.cse7 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_138|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_138|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_138|)))) (or (not (fp.geq .cse7 .cse4)) (not (fp.leq .cse7 .cse5))))))) (and (forall ((|v_skolemized_q#valueAsBitvector_138| (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_138|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_138|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_138|)))) (or (not (fp.geq .cse3 .cse4)) (not (fp.leq .cse3 .cse5)) (fp.leq (fp.mul c_currentRoundingMode .cse2 .cse3) .cse2)))) (or .cse0 .cse6) (or .cse1 .cse6)))))) is different from false [2023-12-24 17:21:47,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1527277215] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 17:21:47,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 17:21:47,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-24 17:21:47,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029206971] [2023-12-24 17:21:47,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 17:21:47,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-24 17:21:47,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 17:21:47,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-24 17:21:47,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=347, Unknown=4, NotChecked=78, Total=506 [2023-12-24 17:21:47,583 INFO L87 Difference]: Start difference. First operand 792 states and 1003 transitions. Second operand has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 14 states have internal predecessors, (97), 4 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-12-24 17:21:54,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:21:58,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:22:03,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:22:08,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:22:19,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:22:26,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:22:30,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:22:35,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:22:40,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:22:52,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:22:57,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:02,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:06,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:11,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:15,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:20,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:25,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:30,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:35,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:40,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:44,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:49,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:54,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:23:58,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:03,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:08,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:12,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:17,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:22,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:27,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:31,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:36,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:40,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:45,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:50,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:24:55,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:00,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:04,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:09,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:14,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:19,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:24,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:28,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:33,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:39,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:44,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:49,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:54,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:25:59,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:04,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:09,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:13,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:18,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:23,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:28,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:33,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:38,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:42,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:47,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:52,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:26:57,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:27:01,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:27:06,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-24 17:27:12,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] Received shutdown request... [2023-12-24 17:27:12,530 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 (29)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 17:27:12,555 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (30)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 17:27:12,555 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 17:27:13,553 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 (29)] Forceful destruction successful, exit code 0 [2023-12-24 17:27:13,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2023-12-24 17:27:13,764 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-24 17:27:13,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 448 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 95.5s TimeCoverageRelationStatistics Valid=126, Invalid=478, Unknown=4, NotChecked=94, Total=702 [2023-12-24 17:27:13,922 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 81 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 34 mSolverCounterUnsat, 64 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 274.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 64 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 308.9s IncrementalHoareTripleChecker+Time [2023-12-24 17:27:13,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 264 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 304 Invalid, 64 Unknown, 0 Unchecked, 308.9s Time] [2023-12-24 17:27:13,923 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 17:27:13,923 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-24 17:27:13,926 INFO L445 BasicCegarLoop]: Path program histogram: [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 17:27:13,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-24 17:27:13,948 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 17:27:13,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 05:27:13 BoogieIcfgContainer [2023-12-24 17:27:13,952 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 17:27:13,952 INFO L158 Benchmark]: Toolchain (without parser) took 882260.91ms. Allocated memory was 332.4MB in the beginning and 487.6MB in the end (delta: 155.2MB). Free memory was 287.5MB in the beginning and 356.6MB in the end (delta: -69.1MB). Peak memory consumption was 288.9MB. Max. memory is 8.0GB. [2023-12-24 17:27:13,956 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 179.3MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 17:27:13,957 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.04ms. Allocated memory is still 332.4MB. Free memory was 287.5MB in the beginning and 271.8MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-24 17:27:13,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.91ms. Allocated memory is still 332.4MB. Free memory was 271.8MB in the beginning and 268.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-24 17:27:13,957 INFO L158 Benchmark]: Boogie Preprocessor took 78.83ms. Allocated memory is still 332.4MB. Free memory was 268.6MB in the beginning and 261.3MB in the end (delta: 7.4MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-24 17:27:13,957 INFO L158 Benchmark]: RCFGBuilder took 3050.94ms. Allocated memory is still 332.4MB. Free memory was 261.3MB in the beginning and 283.8MB in the end (delta: -22.6MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2023-12-24 17:27:13,957 INFO L158 Benchmark]: TraceAbstraction took 878774.30ms. Allocated memory was 332.4MB in the beginning and 487.6MB in the end (delta: 155.2MB). Free memory was 283.3MB in the beginning and 356.6MB in the end (delta: -73.3MB). Peak memory consumption was 283.7MB. Max. memory is 8.0GB. [2023-12-24 17:27:13,958 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 179.3MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 277.04ms. Allocated memory is still 332.4MB. Free memory was 287.5MB in the beginning and 271.8MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 73.91ms. Allocated memory is still 332.4MB. Free memory was 271.8MB in the beginning and 268.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 78.83ms. Allocated memory is still 332.4MB. Free memory was 268.6MB in the beginning and 261.3MB in the end (delta: 7.4MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 3050.94ms. Allocated memory is still 332.4MB. Free memory was 261.3MB in the beginning and 283.8MB in the end (delta: -22.6MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. * TraceAbstraction took 878774.30ms. Allocated memory was 332.4MB in the beginning and 487.6MB in the end (delta: 155.2MB). Free memory was 283.3MB in the beginning and 356.6MB in the end (delta: -73.3MB). Peak memory consumption was 283.7MB. 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 executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 878.7s, OverallIterations: 23, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 427.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 mSolverCounterUnknown, 3613 SdHoareTripleChecker+Valid, 367.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3595 mSDsluCounter, 15639 SdHoareTripleChecker+Invalid, 330.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12542 mSDsCounter, 397 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5373 IncrementalHoareTripleChecker+Invalid, 5835 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 397 mSolverCounterUnsat, 3097 mSDtfsCounter, 5373 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4910 GetRequests, 4565 SyntacticMatches, 18 SemanticMatches, 327 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 1545 ImplicationChecksByTransitivity, 237.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1341occurred in iteration=18, InterpolantAutomatonStates: 193, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 22 MinimizatonAttempts, 2358 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 6.7s SatisfiabilityAnalysisTime, 432.9s InterpolantComputationTime, 3472 NumberOfCodeBlocks, 3472 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 4275 ConstructedInterpolants, 149 QuantifiedInterpolants, 91377 SizeOfPredicates, 354 NumberOfNonLiveVariables, 9939 ConjunctsInSsa, 438 ConjunctsInUnsatCore, 36 InterpolantComputations, 16 PerfectInterpolantSequences, 10745/13104 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