/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 false -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 [2023-12-21 02:11:33,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 02:11:33,325 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 02:11:33,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 02:11:33,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 02:11:33,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 02:11:33,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 02:11:33,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 02:11:33,351 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 02:11:33,351 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 02:11:33,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 02:11:33,352 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 02:11:33,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 02:11:33,354 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 02:11:33,354 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 02:11:33,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 02:11:33,355 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 02:11:33,355 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 02:11:33,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 02:11:33,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 02:11:33,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 02:11:33,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 02:11:33,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 02:11:33,360 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 02:11:33,360 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 02:11:33,361 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 02:11:33,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 02:11:33,361 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 02:11:33,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 02:11:33,362 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 02:11:33,363 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 02:11:33,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 02:11:33,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:11:33,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 02:11:33,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 02:11:33,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 02:11:33,364 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 02:11:33,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 02:11:33,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 02:11:33,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 02:11:33,364 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 02:11:33,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 02:11:33,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 02:11:33,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 02:11:33,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 02:11:33,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 02:11:33,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 02:11:33,595 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 02:11:33,595 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 02:11:33,596 INFO L431 ainManager$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 [2023-12-21 02:11:34,766 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 02:11:34,949 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 02:11:34,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i [2023-12-21 02:11:34,957 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40cc39de5/d018344d1123403ea167e8e7875232e0/FLAG66e892dc4 [2023-12-21 02:11:34,967 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40cc39de5/d018344d1123403ea167e8e7875232e0 [2023-12-21 02:11:34,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 02:11:34,970 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 02:11:34,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 02:11:34,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 02:11:34,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 02:11:34,980 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:11:34" (1/1) ... [2023-12-21 02:11:34,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3464e047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:34, skipping insertion in model container [2023-12-21 02:11:34,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:11:34" (1/1) ... [2023-12-21 02:11:35,017 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 02:11:35,148 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] [2023-12-21 02:11:35,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:11:35,198 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 02:11:35,208 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] [2023-12-21 02:11:35,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:11:35,243 INFO L206 MainTranslator]: Completed translation [2023-12-21 02:11:35,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35 WrapperNode [2023-12-21 02:11:35,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 02:11:35,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 02:11:35,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 02:11:35,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 02:11:35,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,298 INFO L138 Inliner]: procedures = 29, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 415 [2023-12-21 02:11:35,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 02:11:35,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 02:11:35,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 02:11:35,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 02:11:35,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,359 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]. [2023-12-21 02:11:35,359 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,359 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 02:11:35,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 02:11:35,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 02:11:35,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 02:11:35,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (1/1) ... [2023-12-21 02:11:35,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:11:35,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:11:35,457 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) [2023-12-21 02:11:35,481 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 [2023-12-21 02:11:35,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 02:11:35,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-21 02:11:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-21 02:11:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-12-21 02:11:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-12-21 02:11:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-12-21 02:11:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-12-21 02:11:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-12-21 02:11:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-12-21 02:11:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-12-21 02:11:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2023-12-21 02:11:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2023-12-21 02:11:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2023-12-21 02:11:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 02:11:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 02:11:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 02:11:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 02:11:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 02:11:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 02:11:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-21 02:11:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-21 02:11:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-21 02:11:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-21 02:11:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-21 02:11:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-21 02:11:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-21 02:11:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-21 02:11:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-12-21 02:11:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-12-21 02:11:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-12-21 02:11:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-12-21 02:11:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2023-12-21 02:11:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2023-12-21 02:11:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2023-12-21 02:11:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2023-12-21 02:11:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2023-12-21 02:11:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2023-12-21 02:11:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 02:11:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 02:11:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 02:11:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 02:11:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 02:11:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 02:11:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-21 02:11:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-21 02:11:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-21 02:11:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-21 02:11:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-21 02:11:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-21 02:11:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-21 02:11:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-21 02:11:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2023-12-21 02:11:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2023-12-21 02:11:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2023-12-21 02:11:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2023-12-21 02:11:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2023-12-21 02:11:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2023-12-21 02:11:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2023-12-21 02:11:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2023-12-21 02:11:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2023-12-21 02:11:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2023-12-21 02:11:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 02:11:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 02:11:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 02:11:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 02:11:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 02:11:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 02:11:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 02:11:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 02:11:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 02:11:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 02:11:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 02:11:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 02:11:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 02:11:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 02:11:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 02:11:35,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 02:11:35,704 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 02:11:35,706 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 02:11:36,067 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 02:11:36,109 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 02:11:36,109 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 02:11:36,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:11:36 BoogieIcfgContainer [2023-12-21 02:11:36,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 02:11:36,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 02:11:36,112 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 02:11:36,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 02:11:36,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:11:34" (1/3) ... [2023-12-21 02:11:36,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676ab61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:11:36, skipping insertion in model container [2023-12-21 02:11:36,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:11:35" (2/3) ... [2023-12-21 02:11:36,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676ab61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:11:36, skipping insertion in model container [2023-12-21 02:11:36,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:11:36" (3/3) ... [2023-12-21 02:11:36,117 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-46.i [2023-12-21 02:11:36,133 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 02:11:36,133 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 02:11:36,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 02:11:36,183 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;@7dc0050b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 02:11:36,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 02:11:36,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 70 states have internal predecessors, (100), 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) [2023-12-21 02:11:36,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 02:11:36,197 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:11:36,198 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] [2023-12-21 02:11:36,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:11:36,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:11:36,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1897482861, now seen corresponding path program 1 times [2023-12-21 02:11:36,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:11:36,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154563916] [2023-12-21 02:11:36,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:11:36,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:11:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:11:36,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:11:36,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154563916] [2023-12-21 02:11:36,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-21 02:11:36,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653683006] [2023-12-21 02:11:36,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:11:36,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:11:36,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:11:36,475 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) [2023-12-21 02:11:36,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 02:11:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:11:36,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 02:11:36,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:11:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-21 02:11:36,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:11:36,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653683006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:11:36,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:11:36,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 02:11:36,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716233061] [2023-12-21 02:11:36,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:11:36,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 02:11:36,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:11:36,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 02:11:36,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:11:36,848 INFO L87 Difference]: Start difference. First operand has 86 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 70 states have internal predecessors, (100), 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 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2023-12-21 02:11:36,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:11:36,899 INFO L93 Difference]: Finished difference Result 169 states and 268 transitions. [2023-12-21 02:11:36,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 02:11:36,902 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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 109 [2023-12-21 02:11:36,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:11:36,909 INFO L225 Difference]: With dead ends: 169 [2023-12-21 02:11:36,909 INFO L226 Difference]: Without dead ends: 84 [2023-12-21 02:11:36,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:11:36,916 INFO L413 NwaCegarLoop]: 119 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, 119 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 [2023-12-21 02:11:36,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:11:36,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-21 02:11:36,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-12-21 02:11:36,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 68 states have internal predecessors, (95), 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) [2023-12-21 02:11:36,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 123 transitions. [2023-12-21 02:11:36,952 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 123 transitions. Word has length 109 [2023-12-21 02:11:36,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:11:36,952 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 123 transitions. [2023-12-21 02:11:36,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2023-12-21 02:11:36,953 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 123 transitions. [2023-12-21 02:11:36,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 02:11:36,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:11:36,955 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] [2023-12-21 02:11:36,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 02:11:37,164 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 [2023-12-21 02:11:37,164 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:11:37,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:11:37,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1915345745, now seen corresponding path program 1 times [2023-12-21 02:11:37,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:11:37,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741249163] [2023-12-21 02:11:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:11:37,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:11:37,257 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:11:37,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432312969] [2023-12-21 02:11:37,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:11:37,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:11:37,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:11:37,260 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) [2023-12-21 02:11:37,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 02:11:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:11:37,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 02:11:37,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:11:38,118 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 [2023-12-21 02:11:38,148 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 [2023-12-21 02:11:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:11:38,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:11:38,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:11:38,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741249163] [2023-12-21 02:11:38,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:11:38,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432312969] [2023-12-21 02:11:38,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432312969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:11:38,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:11:38,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:11:38,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419626491] [2023-12-21 02:11:38,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:11:38,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:11:38,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:11:38,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:11:38,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:11:38,163 INFO L87 Difference]: Start difference. First operand 84 states and 123 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-12-21 02:11:38,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:11:38,364 INFO L93 Difference]: Finished difference Result 303 states and 443 transitions. [2023-12-21 02:11:38,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:11:38,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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 109 [2023-12-21 02:11:38,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:11:38,372 INFO L225 Difference]: With dead ends: 303 [2023-12-21 02:11:38,372 INFO L226 Difference]: Without dead ends: 220 [2023-12-21 02:11:38,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:11:38,376 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 201 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:11:38,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 545 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:11:38,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-12-21 02:11:38,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 215. [2023-12-21 02:11:38,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 182 states have (on average 1.4230769230769231) internal successors, (259), 183 states have internal predecessors, (259), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-21 02:11:38,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 317 transitions. [2023-12-21 02:11:38,419 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 317 transitions. Word has length 109 [2023-12-21 02:11:38,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:11:38,421 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 317 transitions. [2023-12-21 02:11:38,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-12-21 02:11:38,421 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 317 transitions. [2023-12-21 02:11:38,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 02:11:38,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:11:38,428 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] [2023-12-21 02:11:38,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 02:11:38,635 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 [2023-12-21 02:11:38,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:11:38,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:11:38,637 INFO L85 PathProgramCache]: Analyzing trace with hash -2121456113, now seen corresponding path program 1 times [2023-12-21 02:11:38,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:11:38,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625790858] [2023-12-21 02:11:38,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:11:38,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:11:38,674 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:11:38,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225508132] [2023-12-21 02:11:38,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:11:38,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:11:38,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:11:38,676 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) [2023-12-21 02:11:38,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 02:11:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:11:38,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 02:11:38,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:11:38,908 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 11 treesize of output 7 [2023-12-21 02:11:38,934 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 02:11:38,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:11:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:11:39,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:11:39,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625790858] [2023-12-21 02:11:39,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:11:39,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225508132] [2023-12-21 02:11:39,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225508132] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:11:39,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:11:39,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-12-21 02:11:39,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625162619] [2023-12-21 02:11:39,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:11:39,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:11:39,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:11:39,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:11:39,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:11:39,003 INFO L87 Difference]: Start difference. First operand 215 states and 317 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-12-21 02:11:39,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:11:39,101 INFO L93 Difference]: Finished difference Result 688 states and 1015 transitions. [2023-12-21 02:11:39,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:11:39,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 109 [2023-12-21 02:11:39,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:11:39,105 INFO L225 Difference]: With dead ends: 688 [2023-12-21 02:11:39,105 INFO L226 Difference]: Without dead ends: 474 [2023-12-21 02:11:39,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:11:39,107 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 158 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:11:39,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 485 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:11:39,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-12-21 02:11:39,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 239. [2023-12-21 02:11:39,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 206 states have (on average 1.412621359223301) internal successors, (291), 207 states have internal predecessors, (291), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-21 02:11:39,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 349 transitions. [2023-12-21 02:11:39,129 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 349 transitions. Word has length 109 [2023-12-21 02:11:39,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:11:39,129 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 349 transitions. [2023-12-21 02:11:39,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-12-21 02:11:39,130 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 349 transitions. [2023-12-21 02:11:39,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 02:11:39,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:11:39,131 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] [2023-12-21 02:11:39,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 02:11:39,339 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 [2023-12-21 02:11:39,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:11:39,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:11:39,340 INFO L85 PathProgramCache]: Analyzing trace with hash -141480636, now seen corresponding path program 1 times [2023-12-21 02:11:39,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:11:39,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125587448] [2023-12-21 02:11:39,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:11:39,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:11:39,386 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:11:39,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873772374] [2023-12-21 02:11:39,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:11:39,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:11:39,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:11:39,392 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) [2023-12-21 02:11:39,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 02:11:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:11:39,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 02:11:39,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:11:40,189 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 149 treesize of output 105 [2023-12-21 02:11:52,456 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 37 treesize of output 21 [2023-12-21 02:11:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 02:11:52,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:11:52,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:11:52,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125587448] [2023-12-21 02:11:52,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:11:52,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873772374] [2023-12-21 02:11:52,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873772374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:11:52,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:11:52,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:11:52,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224397968] [2023-12-21 02:11:52,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:11:52,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:11:52,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:11:52,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:11:52,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=25, Unknown=3, NotChecked=0, Total=42 [2023-12-21 02:11:52,532 INFO L87 Difference]: Start difference. First operand 239 states and 349 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 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) [2023-12-21 02:11:56,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:00,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:04,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:08,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:12,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:16,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:21,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:25,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:29,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:33,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:37,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:41,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:45,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:49,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:53,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:12:57,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:13:01,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:13:05,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:13:09,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:13:13,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:13:18,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:13:22,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-21 02:13:22,321 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 [2023-12-21 02:13:22,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=14, Invalid=25, Unknown=3, NotChecked=0, Total=42 [2023-12-21 02:13:22,322 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.6s IncrementalHoareTripleChecker+Time [2023-12-21 02:13:22,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 98 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 22 Unknown, 0 Unchecked, 89.6s Time] [2023-12-21 02:13:22,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 02:13:22,523 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 [2023-12-21 02:13:22,524 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)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:365) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) 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: java.io.IOException: Broken pipe at java.base/java.io.FileOutputStream.writeBytes(Native Method) at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2023-12-21 02:13:22,527 INFO L158 Benchmark]: Toolchain (without parser) took 107557.72ms. Allocated memory was 264.2MB in the beginning and 335.5MB in the end (delta: 71.3MB). Free memory was 210.6MB in the beginning and 143.0MB in the end (delta: 67.6MB). Peak memory consumption was 139.9MB. Max. memory is 8.0GB. [2023-12-21 02:13:22,528 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:13:22,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.89ms. Allocated memory is still 264.2MB. Free memory was 210.1MB in the beginning and 196.3MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-21 02:13:22,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.68ms. Allocated memory is still 264.2MB. Free memory was 196.3MB in the beginning and 193.3MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 02:13:22,528 INFO L158 Benchmark]: Boogie Preprocessor took 112.27ms. Allocated memory is still 264.2MB. Free memory was 193.3MB in the beginning and 188.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 02:13:22,529 INFO L158 Benchmark]: RCFGBuilder took 698.02ms. Allocated memory is still 264.2MB. Free memory was 188.6MB in the beginning and 218.0MB in the end (delta: -29.3MB). Peak memory consumption was 33.0MB. Max. memory is 8.0GB. [2023-12-21 02:13:22,529 INFO L158 Benchmark]: TraceAbstraction took 106415.31ms. Allocated memory was 264.2MB in the beginning and 335.5MB in the end (delta: 71.3MB). Free memory was 217.5MB in the beginning and 143.0MB in the end (delta: 74.4MB). Peak memory consumption was 145.7MB. Max. memory is 8.0GB. [2023-12-21 02:13:22,530 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 271.89ms. Allocated memory is still 264.2MB. Free memory was 210.1MB in the beginning and 196.3MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.68ms. Allocated memory is still 264.2MB. Free memory was 196.3MB in the beginning and 193.3MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 112.27ms. Allocated memory is still 264.2MB. Free memory was 193.3MB in the beginning and 188.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 698.02ms. Allocated memory is still 264.2MB. Free memory was 188.6MB in the beginning and 218.0MB in the end (delta: -29.3MB). Peak memory consumption was 33.0MB. Max. memory is 8.0GB. * TraceAbstraction took 106415.31ms. Allocated memory was 264.2MB in the beginning and 335.5MB in the end (delta: 71.3MB). Free memory was 217.5MB in the beginning and 143.0MB in the end (delta: 74.4MB). Peak memory consumption was 145.7MB. 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)) Connection to SMT solver broken 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)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...