/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:37:15,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:37:15,240 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:37:15,243 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:37:15,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:37:15,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:37:15,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:37:15,263 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:37:15,264 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:37:15,267 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:37:15,267 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:37:15,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:37:15,267 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:37:15,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:37:15,268 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:37:15,268 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:37:15,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:37:15,268 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:37:15,269 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:37:15,269 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:37:15,269 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:37:15,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:37:15,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:37:15,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:37:15,270 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:37:15,271 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:37:15,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:37:15,271 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:37:15,271 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:37:15,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:37:15,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:37:15,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:37:15,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:37:15,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:37:15,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:37:15,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:37:15,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:37:15,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:37:15,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:37:15,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:37:15,274 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:37:15,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:37:15,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:37:15,274 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:37:15,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:37:15,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:37:15,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:37:15,440 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:37:15,440 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:37:15,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i [2023-12-15 21:37:16,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:37:16,685 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:37:16,685 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i [2023-12-15 21:37:16,690 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a0d3969/81e863c4dc6e4b529974e9176c80a10f/FLAG6d756e8f7 [2023-12-15 21:37:17,058 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a0d3969/81e863c4dc6e4b529974e9176c80a10f [2023-12-15 21:37:17,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:37:17,061 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:37:17,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:37:17,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:37:17,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:37:17,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432b11f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17, skipping insertion in model container [2023-12-15 21:37:17,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,105 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:37:17,211 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-46.i[916,929] [2023-12-15 21:37:17,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:37:17,268 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:37:17,278 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-46.i[916,929] [2023-12-15 21:37:17,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:37:17,323 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:37:17,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17 WrapperNode [2023-12-15 21:37:17,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:37:17,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:37:17,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:37:17,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:37:17,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,361 INFO L138 Inliner]: procedures = 29, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 431 [2023-12-15 21:37:17,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:37:17,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:37:17,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:37:17,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:37:17,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,373 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,386 INFO L175 MemorySlicer]: Split 101 memory accesses to 12 slices as follows [2, 12, 8, 17, 8, 8, 3, 6, 6, 8, 17, 6]. 17 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 16 writes are split as follows [0, 5, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1]. [2023-12-15 21:37:17,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,396 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,406 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:37:17,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:37:17,406 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:37:17,406 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:37:17,407 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (1/1) ... [2023-12-15 21:37:17,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:37:17,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:17,429 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) [2023-12-15 21:37:17,431 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 [2023-12-15 21:37:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:37:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-15 21:37:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-15 21:37:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-12-15 21:37:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-12-15 21:37:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-15 21:37:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-12-15 21:37:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-15 21:37:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2023-12-15 21:37:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2023-12-15 21:37:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2023-12-15 21:37:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2023-12-15 21:37:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2023-12-15 21:37:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2023-12-15 21:37:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2023-12-15 21:37:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2023-12-15 21:37:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2023-12-15 21:37:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:37:17,452 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:37:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:37:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 21:37:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 21:37:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 21:37:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 21:37:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-15 21:37:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-15 21:37:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-15 21:37:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-15 21:37:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-15 21:37:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-15 21:37:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-15 21:37:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:37:17,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:37:17,580 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:37:17,582 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:37:17,836 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:37:17,859 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:37:17,860 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:37:17,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:37:17 BoogieIcfgContainer [2023-12-15 21:37:17,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:37:17,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:37:17,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:37:17,864 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:37:17,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:37:17" (1/3) ... [2023-12-15 21:37:17,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f60897f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:37:17, skipping insertion in model container [2023-12-15 21:37:17,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:37:17" (2/3) ... [2023-12-15 21:37:17,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f60897f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:37:17, skipping insertion in model container [2023-12-15 21:37:17,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:37:17" (3/3) ... [2023-12-15 21:37:17,865 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-46.i [2023-12-15 21:37:17,877 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:37:17,877 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:37:17,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:37:17,911 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;@7fdce489, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:37:17,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:37:17,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 75 states have (on average 1.4666666666666666) internal successors, (110), 76 states have internal predecessors, (110), 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) [2023-12-15 21:37:17,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 21:37:17,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:17,922 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] [2023-12-15 21:37:17,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:17,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:17,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1613036560, now seen corresponding path program 1 times [2023-12-15 21:37:17,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:17,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554101374] [2023-12-15 21:37:17,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:17,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:18,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:18,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554101374] [2023-12-15 21:37:18,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 21:37:18,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178665986] [2023-12-15 21:37:18,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:18,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:18,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:18,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:37:18,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:37:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:18,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 21:37:18,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:18,402 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-15 21:37:18,402 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:18,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178665986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:18,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:18,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:37:18,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700677841] [2023-12-15 21:37:18,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:18,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:37:18,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:18,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:37:18,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:37:18,425 INFO L87 Difference]: Start difference. First operand has 92 states, 75 states have (on average 1.4666666666666666) internal successors, (110), 76 states have internal predecessors, (110), 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 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 21:37:18,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:18,471 INFO L93 Difference]: Finished difference Result 181 states and 288 transitions. [2023-12-15 21:37:18,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:37:18,484 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2023-12-15 21:37:18,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:18,489 INFO L225 Difference]: With dead ends: 181 [2023-12-15 21:37:18,489 INFO L226 Difference]: Without dead ends: 90 [2023-12-15 21:37:18,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:37:18,493 INFO L413 NwaCegarLoop]: 129 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, 129 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 [2023-12-15 21:37:18,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:37:18,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-15 21:37:18,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-12-15 21:37:18,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 74 states have (on average 1.4189189189189189) internal successors, (105), 74 states have internal predecessors, (105), 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) [2023-12-15 21:37:18,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 133 transitions. [2023-12-15 21:37:18,545 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 133 transitions. Word has length 111 [2023-12-15 21:37:18,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:18,545 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 133 transitions. [2023-12-15 21:37:18,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 21:37:18,546 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 133 transitions. [2023-12-15 21:37:18,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 21:37:18,555 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:18,555 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] [2023-12-15 21:37:18,566 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 21:37:18,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 21:37:18,763 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:18,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:18,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1599398900, now seen corresponding path program 1 times [2023-12-15 21:37:18,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:18,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461423037] [2023-12-15 21:37:18,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:18,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:18,834 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:18,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [259488820] [2023-12-15 21:37:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:18,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:18,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:18,845 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:37:18,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 21:37:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:19,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 21:37:19,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:19,169 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 15 treesize of output 7 [2023-12-15 21:37:19,214 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 [2023-12-15 21:37:19,223 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-15 21:37:19,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:37:19,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:19,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461423037] [2023-12-15 21:37:19,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:19,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259488820] [2023-12-15 21:37:19,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259488820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:37:19,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:37:19,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 21:37:19,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221291098] [2023-12-15 21:37:19,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:19,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 21:37:19,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:19,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 21:37:19,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:37:19,226 INFO L87 Difference]: Start difference. First operand 90 states and 133 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2023-12-15 21:37:19,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:19,353 INFO L93 Difference]: Finished difference Result 228 states and 334 transitions. [2023-12-15 21:37:19,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:37:19,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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 111 [2023-12-15 21:37:19,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:19,358 INFO L225 Difference]: With dead ends: 228 [2023-12-15 21:37:19,358 INFO L226 Difference]: Without dead ends: 139 [2023-12-15 21:37:19,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-12-15 21:37:19,364 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 70 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:37:19,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 558 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:37:19,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-12-15 21:37:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2023-12-15 21:37:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 118 states have (on average 1.4322033898305084) internal successors, (169), 119 states have internal predecessors, (169), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-15 21:37:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 199 transitions. [2023-12-15 21:37:19,377 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 199 transitions. Word has length 111 [2023-12-15 21:37:19,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:19,378 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 199 transitions. [2023-12-15 21:37:19,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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) [2023-12-15 21:37:19,378 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 199 transitions. [2023-12-15 21:37:19,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 21:37:19,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:19,379 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] [2023-12-15 21:37:19,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 21:37:19,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 21:37:19,589 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:19,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:19,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1857564338, now seen corresponding path program 1 times [2023-12-15 21:37:19,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:19,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595419150] [2023-12-15 21:37:19,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:19,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:19,621 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:19,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1702827] [2023-12-15 21:37:19,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:19,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:19,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:19,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:37:19,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 21:37:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:19,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-15 21:37:19,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:19,896 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 11 treesize of output 7 [2023-12-15 21:37:19,929 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-15 21:37:19,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:37:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-15 21:37:20,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:20,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595419150] [2023-12-15 21:37:20,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:20,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702827] [2023-12-15 21:37:20,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702827] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:37:20,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:37:20,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-12-15 21:37:20,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380496914] [2023-12-15 21:37:20,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:37:20,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:37:20,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:37:20,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:37:20,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:37:20,012 INFO L87 Difference]: Start difference. First operand 136 states and 199 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2023-12-15 21:37:20,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:37:20,093 INFO L93 Difference]: Finished difference Result 442 states and 649 transitions. [2023-12-15 21:37:20,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:37:20,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 111 [2023-12-15 21:37:20,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:37:20,096 INFO L225 Difference]: With dead ends: 442 [2023-12-15 21:37:20,096 INFO L226 Difference]: Without dead ends: 307 [2023-12-15 21:37:20,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-15 21:37:20,097 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 176 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:37:20,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 540 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:37:20,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-12-15 21:37:20,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 155. [2023-12-15 21:37:20,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 137 states have (on average 1.4233576642335766) internal successors, (195), 138 states have internal predecessors, (195), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-15 21:37:20,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 225 transitions. [2023-12-15 21:37:20,110 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 225 transitions. Word has length 111 [2023-12-15 21:37:20,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:37:20,110 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 225 transitions. [2023-12-15 21:37:20,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2023-12-15 21:37:20,110 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 225 transitions. [2023-12-15 21:37:20,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-15 21:37:20,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:37:20,111 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] [2023-12-15 21:37:20,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-15 21:37:20,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:20,317 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:37:20,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:37:20,318 INFO L85 PathProgramCache]: Analyzing trace with hash 129695399, now seen corresponding path program 1 times [2023-12-15 21:37:20,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:37:20,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236391763] [2023-12-15 21:37:20,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:20,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:37:20,343 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:37:20,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918612701] [2023-12-15 21:37:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:37:20,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:20,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:37:20,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:37:20,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 21:37:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:37:20,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-15 21:37:20,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:37:21,178 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 45 [2023-12-15 21:37:28,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:37:28,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236391763] [2023-12-15 21:37:28,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:37:28,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918612701] [2023-12-15 21:37:28,096 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-12-15 21:37:28,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 139 [2023-12-15 21:37:28,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-15 21:37:28,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:37:28,298 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:950) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:789) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:377) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:579) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 44 more [2023-12-15 21:37:28,301 INFO L158 Benchmark]: Toolchain (without parser) took 11240.06ms. Allocated memory was 255.9MB in the beginning and 350.2MB in the end (delta: 94.4MB). Free memory was 216.9MB in the beginning and 261.8MB in the end (delta: -44.9MB). Peak memory consumption was 50.7MB. Max. memory is 8.0GB. [2023-12-15 21:37:28,301 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 166.7MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:37:28,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.27ms. Allocated memory is still 255.9MB. Free memory was 216.9MB in the beginning and 202.8MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-15 21:37:28,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.35ms. Allocated memory is still 255.9MB. Free memory was 202.8MB in the beginning and 199.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 21:37:28,302 INFO L158 Benchmark]: Boogie Preprocessor took 43.64ms. Allocated memory is still 255.9MB. Free memory was 199.6MB in the beginning and 194.9MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 21:37:28,302 INFO L158 Benchmark]: RCFGBuilder took 453.91ms. Allocated memory is still 255.9MB. Free memory was 194.9MB in the beginning and 158.7MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-15 21:37:28,302 INFO L158 Benchmark]: TraceAbstraction took 10439.08ms. Allocated memory was 255.9MB in the beginning and 350.2MB in the end (delta: 94.4MB). Free memory was 158.2MB in the beginning and 261.8MB in the end (delta: -103.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:37:28,303 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 166.7MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 262.27ms. Allocated memory is still 255.9MB. Free memory was 216.9MB in the beginning and 202.8MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.35ms. Allocated memory is still 255.9MB. Free memory was 202.8MB in the beginning and 199.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.64ms. Allocated memory is still 255.9MB. Free memory was 199.6MB in the beginning and 194.9MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 453.91ms. Allocated memory is still 255.9MB. Free memory was 194.9MB in the beginning and 158.7MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 10439.08ms. Allocated memory was 255.9MB in the beginning and 350.2MB in the end (delta: 94.4MB). Free memory was 158.2MB in the beginning and 261.8MB in the end (delta: -103.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...