./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 14:05:51,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 14:05:51,640 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 14:05:51,646 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 14:05:51,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 14:05:51,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 14:05:51,679 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 14:05:51,679 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 14:05:51,680 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 14:05:51,680 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 14:05:51,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 14:05:51,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 14:05:51,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 14:05:51,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 14:05:51,687 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 14:05:51,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 14:05:51,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 14:05:51,689 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 14:05:51,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 14:05:51,689 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 14:05:51,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 14:05:51,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 14:05:51,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 14:05:51,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 14:05:51,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 14:05:51,692 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 14:05:51,693 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 14:05:51,693 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 14:05:51,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 14:05:51,693 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 14:05:51,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 14:05:51,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 14:05:51,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 14:05:51,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 14:05:51,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 14:05:51,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 14:05:51,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 14:05:51,696 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 14:05:51,696 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 14:05:51,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 14:05:51,697 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 14:05:51,697 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 14:05:51,697 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 14:05:51,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 14:05:51,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 [2024-10-13 14:05:51,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 14:05:51,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 14:05:51,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 14:05:51,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 14:05:51,992 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 14:05:51,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i [2024-10-13 14:05:53,465 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 14:05:53,727 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 14:05:53,728 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_peterson.i [2024-10-13 14:05:53,749 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045297ccc/e57462043e4d46ffa010704273763240/FLAG1089e0b5c [2024-10-13 14:05:53,763 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045297ccc/e57462043e4d46ffa010704273763240 [2024-10-13 14:05:53,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 14:05:53,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 14:05:53,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 14:05:53,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 14:05:53,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 14:05:53,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:05:53" (1/1) ... [2024-10-13 14:05:53,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1986644c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:53, skipping insertion in model container [2024-10-13 14:05:53,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:05:53" (1/1) ... [2024-10-13 14:05:53,816 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 14:05:54,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 14:05:54,256 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 14:05:54,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 14:05:54,398 INFO L204 MainTranslator]: Completed translation [2024-10-13 14:05:54,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54 WrapperNode [2024-10-13 14:05:54,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 14:05:54,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 14:05:54,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 14:05:54,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 14:05:54,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,513 INFO L138 Inliner]: procedures = 145, calls = 277, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 441 [2024-10-13 14:05:54,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 14:05:54,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 14:05:54,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 14:05:54,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 14:05:54,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,587 INFO L175 MemorySlicer]: Split 148 memory accesses to 17 slices as follows [2, 6, 8, 13, 8, 29, 21, 5, 7, 7, 7, 7, 0, 5, 5, 5, 13]. 20 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [2, 2, 3, 0, 3, 9, 9, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0]. The 37 writes are split as follows [0, 2, 2, 1, 2, 11, 6, 1, 2, 2, 2, 2, 0, 1, 1, 1, 1]. [2024-10-13 14:05:54,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 14:05:54,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 14:05:54,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 14:05:54,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 14:05:54,663 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (1/1) ... [2024-10-13 14:05:54,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 14:05:54,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:05:54,713 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) [2024-10-13 14:05:54,716 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 [2024-10-13 14:05:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 14:05:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 14:05:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 14:05:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 14:05:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 14:05:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 14:05:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-13 14:05:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-13 14:05:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-13 14:05:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-13 14:05:54,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-13 14:05:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-13 14:05:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-13 14:05:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-13 14:05:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-13 14:05:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-13 14:05:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-10-13 14:05:54,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 14:05:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 14:05:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 14:05:54,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 14:05:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 14:05:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 14:05:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-13 14:05:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-13 14:05:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-13 14:05:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-13 14:05:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-13 14:05:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-13 14:05:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-13 14:05:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-13 14:05:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-13 14:05:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-13 14:05:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-10-13 14:05:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 14:05:54,777 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 14:05:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 14:05:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 14:05:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 14:05:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 14:05:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 14:05:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 14:05:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 14:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-13 14:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-13 14:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-13 14:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-13 14:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-10-13 14:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-10-13 14:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-10-13 14:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-10-13 14:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-10-13 14:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-10-13 14:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-10-13 14:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-10-13 14:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-10-13 14:05:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-10-13 14:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 14:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 14:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 14:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 14:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 14:05:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-13 14:05:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-13 14:05:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-13 14:05:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-13 14:05:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-10-13 14:05:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-10-13 14:05:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-10-13 14:05:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-10-13 14:05:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-10-13 14:05:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-10-13 14:05:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-10-13 14:05:54,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-10-13 14:05:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-10-13 14:05:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-10-13 14:05:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-13 14:05:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-13 14:05:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 14:05:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 14:05:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 14:05:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 14:05:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-13 14:05:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-10-13 14:05:54,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-10-13 14:05:54,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-13 14:05:54,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-13 14:05:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-13 14:05:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-13 14:05:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 14:05:54,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 14:05:55,055 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 14:05:55,058 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 14:05:59,663 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-10-13 14:05:59,664 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 14:05:59,738 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 14:05:59,738 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 14:05:59,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:05:59 BoogieIcfgContainer [2024-10-13 14:05:59,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 14:05:59,742 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 14:05:59,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 14:05:59,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 14:05:59,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:05:53" (1/3) ... [2024-10-13 14:05:59,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683eb63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:05:59, skipping insertion in model container [2024-10-13 14:05:59,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:05:54" (2/3) ... [2024-10-13 14:05:59,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683eb63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:05:59, skipping insertion in model container [2024-10-13 14:05:59,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:05:59" (3/3) ... [2024-10-13 14:05:59,749 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_peterson.i [2024-10-13 14:05:59,767 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 14:05:59,767 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-13 14:05:59,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 14:05:59,846 INFO L333 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, 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;@cdd2348, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 14:05:59,846 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-13 14:05:59,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 74 states have (on average 1.4189189189189189) internal successors, (105), 82 states have internal predecessors, (105), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-13 14:05:59,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-13 14:05:59,858 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:05:59,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-13 14:05:59,860 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 14:05:59,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:05:59,867 INFO L85 PathProgramCache]: Analyzing trace with hash 10084627, now seen corresponding path program 1 times [2024-10-13 14:05:59,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:05:59,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345305260] [2024-10-13 14:05:59,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:05:59,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:00,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:06:00,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:00,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345305260] [2024-10-13 14:06:00,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345305260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:00,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 14:06:00,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 14:06:00,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823500843] [2024-10-13 14:06:00,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:00,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 14:06:00,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:00,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 14:06:00,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 14:06:00,409 INFO L87 Difference]: Start difference. First operand has 122 states, 74 states have (on average 1.4189189189189189) internal successors, (105), 82 states have internal predecessors, (105), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:00,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:00,543 INFO L93 Difference]: Finished difference Result 241 states and 383 transitions. [2024-10-13 14:06:00,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 14:06:00,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-13 14:06:00,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:00,553 INFO L225 Difference]: With dead ends: 241 [2024-10-13 14:06:00,553 INFO L226 Difference]: Without dead ends: 15 [2024-10-13 14:06:00,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 14:06:00,565 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 1 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:00,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 461 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 14:06:00,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-10-13 14:06:00,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-10-13 14:06:00,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:00,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2024-10-13 14:06:00,589 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 4 [2024-10-13 14:06:00,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:00,590 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2024-10-13 14:06:00,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:00,590 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2024-10-13 14:06:00,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 14:06:00,590 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:00,590 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-13 14:06:00,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 14:06:00,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 14:06:00,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:00,592 INFO L85 PathProgramCache]: Analyzing trace with hash -216439876, now seen corresponding path program 1 times [2024-10-13 14:06:00,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:00,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715547348] [2024-10-13 14:06:00,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:00,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:00,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:06:00,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:00,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715547348] [2024-10-13 14:06:00,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715547348] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:06:00,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219615656] [2024-10-13 14:06:00,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:00,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:00,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:06:00,879 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) [2024-10-13 14:06:00,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 14:06:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 14:06:01,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:06:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:06:01,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 14:06:01,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219615656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:01,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 14:06:01,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-13 14:06:01,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755784547] [2024-10-13 14:06:01,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:01,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 14:06:01,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:01,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 14:06:01,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 14:06:01,230 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:01,324 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2024-10-13 14:06:01,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 14:06:01,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-13 14:06:01,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:01,326 INFO L225 Difference]: With dead ends: 15 [2024-10-13 14:06:01,326 INFO L226 Difference]: Without dead ends: 14 [2024-10-13 14:06:01,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 14:06:01,327 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:01,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 28 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 14:06:01,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-10-13 14:06:01,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-10-13 14:06:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:01,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-10-13 14:06:01,331 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 7 [2024-10-13 14:06:01,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:01,331 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-10-13 14:06:01,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:01,331 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-10-13 14:06:01,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-13 14:06:01,332 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:01,332 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:01,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 14:06:01,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:01,533 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 14:06:01,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:01,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1880108493, now seen corresponding path program 1 times [2024-10-13 14:06:01,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:01,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655180633] [2024-10-13 14:06:01,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:01,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:06:01,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:01,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655180633] [2024-10-13 14:06:01,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655180633] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:06:01,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756405969] [2024-10-13 14:06:01,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:01,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:01,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:06:01,698 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) [2024-10-13 14:06:01,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 14:06:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 14:06:01,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:06:01,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:06:01,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:06:02,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:06:02,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756405969] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:06:02,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:06:02,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-13 14:06:02,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853450726] [2024-10-13 14:06:02,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:06:02,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 14:06:02,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:02,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 14:06:02,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-13 14:06:02,019 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:02,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:02,106 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2024-10-13 14:06:02,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 14:06:02,107 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-13 14:06:02,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:02,107 INFO L225 Difference]: With dead ends: 31 [2024-10-13 14:06:02,107 INFO L226 Difference]: Without dead ends: 18 [2024-10-13 14:06:02,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-13 14:06:02,109 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:02,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 14:06:02,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-10-13 14:06:02,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-10-13 14:06:02,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:02,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2024-10-13 14:06:02,113 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 8 [2024-10-13 14:06:02,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:02,113 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2024-10-13 14:06:02,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:02,114 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2024-10-13 14:06:02,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-13 14:06:02,114 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:02,114 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1] [2024-10-13 14:06:02,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 14:06:02,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 14:06:02,319 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 14:06:02,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:02,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1011817084, now seen corresponding path program 1 times [2024-10-13 14:06:02,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:02,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156202443] [2024-10-13 14:06:02,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:02,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:02,427 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 14:06:02,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:02,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156202443] [2024-10-13 14:06:02,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156202443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:02,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 14:06:02,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 14:06:02,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381428317] [2024-10-13 14:06:02,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:02,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 14:06:02,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:02,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 14:06:02,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 14:06:02,429 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:02,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:02,456 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-10-13 14:06:02,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 14:06:02,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-13 14:06:02,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:02,457 INFO L225 Difference]: With dead ends: 18 [2024-10-13 14:06:02,457 INFO L226 Difference]: Without dead ends: 17 [2024-10-13 14:06:02,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 14:06:02,458 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:02,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 14:06:02,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-13 14:06:02,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-13 14:06:02,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2024-10-13 14:06:02,463 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2024-10-13 14:06:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:02,464 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2024-10-13 14:06:02,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:02,464 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2024-10-13 14:06:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-13 14:06:02,465 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:02,465 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1] [2024-10-13 14:06:02,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 14:06:02,465 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 14:06:02,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:02,465 INFO L85 PathProgramCache]: Analyzing trace with hash 962400557, now seen corresponding path program 2 times [2024-10-13 14:06:02,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:02,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097546386] [2024-10-13 14:06:02,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:02,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:02,615 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 14:06:02,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:02,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097546386] [2024-10-13 14:06:02,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097546386] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:02,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 14:06:02,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 14:06:02,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99109610] [2024-10-13 14:06:02,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:02,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 14:06:02,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:02,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 14:06:02,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 14:06:02,619 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:02,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:02,681 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2024-10-13 14:06:02,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 14:06:02,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-13 14:06:02,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:02,683 INFO L225 Difference]: With dead ends: 33 [2024-10-13 14:06:02,683 INFO L226 Difference]: Without dead ends: 31 [2024-10-13 14:06:02,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 14:06:02,684 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:02,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 14:06:02,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-10-13 14:06:02,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-10-13 14:06:02,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2024-10-13 14:06:02,689 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 14 [2024-10-13 14:06:02,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:02,689 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2024-10-13 14:06:02,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:02,689 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2024-10-13 14:06:02,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-13 14:06:02,689 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:02,689 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1] [2024-10-13 14:06:02,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 14:06:02,690 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 14:06:02,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:02,693 INFO L85 PathProgramCache]: Analyzing trace with hash 873393905, now seen corresponding path program 1 times [2024-10-13 14:06:02,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:02,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351631212] [2024-10-13 14:06:02,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:02,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:02,952 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 14:06:02,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:02,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351631212] [2024-10-13 14:06:02,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351631212] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:06:02,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148058551] [2024-10-13 14:06:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:02,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:02,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:06:02,957 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) [2024-10-13 14:06:02,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 14:06:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:03,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 14:06:03,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:06:03,381 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 14:06:03,382 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 14:06:03,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148058551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:03,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 14:06:03,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-13 14:06:03,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335261492] [2024-10-13 14:06:03,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:03,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 14:06:03,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:03,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 14:06:03,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 14:06:03,386 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:03,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:03,468 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2024-10-13 14:06:03,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 14:06:03,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-10-13 14:06:03,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:03,469 INFO L225 Difference]: With dead ends: 31 [2024-10-13 14:06:03,470 INFO L226 Difference]: Without dead ends: 30 [2024-10-13 14:06:03,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 14:06:03,471 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:03,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 15 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 14:06:03,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-13 14:06:03,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-13 14:06:03,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.103448275862069) internal successors, (32), 29 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:03,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2024-10-13 14:06:03,476 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 28 [2024-10-13 14:06:03,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:03,478 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2024-10-13 14:06:03,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:03,478 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2024-10-13 14:06:03,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-13 14:06:03,479 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:03,479 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 1, 1, 1] [2024-10-13 14:06:03,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 14:06:03,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:03,680 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 14:06:03,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:03,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1305407430, now seen corresponding path program 1 times [2024-10-13 14:06:03,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:03,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709886159] [2024-10-13 14:06:03,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:03,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-13 14:06:03,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:03,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709886159] [2024-10-13 14:06:03,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709886159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:03,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 14:06:03,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 14:06:03,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890773722] [2024-10-13 14:06:03,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:03,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 14:06:03,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:03,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 14:06:03,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 14:06:03,841 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:03,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:03,886 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2024-10-13 14:06:03,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 14:06:03,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-10-13 14:06:03,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:03,886 INFO L225 Difference]: With dead ends: 30 [2024-10-13 14:06:03,886 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 14:06:03,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 14:06:03,887 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:03,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 14:06:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 14:06:03,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 14:06:03,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:03,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 14:06:03,888 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2024-10-13 14:06:03,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:03,888 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 14:06:03,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:03,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 14:06:03,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 14:06:03,894 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-10-13 14:06:03,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-10-13 14:06:03,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-10-13 14:06:03,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-10-13 14:06:03,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-10-13 14:06:03,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-10-13 14:06:03,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-10-13 14:06:03,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-10-13 14:06:03,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 14:06:03,899 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-10-13 14:06:03,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 14:06:04,022 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 14:06:04,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 02:06:04 BoogieIcfgContainer [2024-10-13 14:06:04,047 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 14:06:04,048 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 14:06:04,048 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 14:06:04,048 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 14:06:04,048 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:05:59" (3/4) ... [2024-10-13 14:06:04,050 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 14:06:04,054 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_join [2024-10-13 14:06:04,054 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-13 14:06:04,054 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_create [2024-10-13 14:06:04,054 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-13 14:06:04,055 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_cs [2024-10-13 14:06:04,069 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-13 14:06:04,070 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-13 14:06:04,071 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-13 14:06:04,072 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 14:06:04,072 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 14:06:04,214 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 14:06:04,215 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 14:06:04,215 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 14:06:04,215 INFO L158 Benchmark]: Toolchain (without parser) took 10449.39ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 103.3MB in the beginning and 86.5MB in the end (delta: 16.8MB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. [2024-10-13 14:06:04,216 INFO L158 Benchmark]: CDTParser took 0.88ms. Allocated memory is still 159.4MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 14:06:04,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 630.93ms. Allocated memory is still 159.4MB. Free memory was 103.1MB in the beginning and 73.8MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-13 14:06:04,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.34ms. Allocated memory is still 159.4MB. Free memory was 73.8MB in the beginning and 127.0MB in the end (delta: -53.2MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2024-10-13 14:06:04,217 INFO L158 Benchmark]: Boogie Preprocessor took 147.09ms. Allocated memory is still 159.4MB. Free memory was 127.0MB in the beginning and 119.4MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-13 14:06:04,217 INFO L158 Benchmark]: RCFGBuilder took 5076.83ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 119.4MB in the beginning and 153.8MB in the end (delta: -34.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-10-13 14:06:04,217 INFO L158 Benchmark]: TraceAbstraction took 4305.37ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 152.7MB in the beginning and 96.9MB in the end (delta: 55.8MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. [2024-10-13 14:06:04,218 INFO L158 Benchmark]: Witness Printer took 167.37ms. Allocated memory is still 234.9MB. Free memory was 96.9MB in the beginning and 86.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 14:06:04,220 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88ms. Allocated memory is still 159.4MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 630.93ms. Allocated memory is still 159.4MB. Free memory was 103.1MB in the beginning and 73.8MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.34ms. Allocated memory is still 159.4MB. Free memory was 73.8MB in the beginning and 127.0MB in the end (delta: -53.2MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 147.09ms. Allocated memory is still 159.4MB. Free memory was 127.0MB in the beginning and 119.4MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 5076.83ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 119.4MB in the beginning and 153.8MB in the end (delta: -34.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4305.37ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 152.7MB in the beginning and 96.9MB in the end (delta: 55.8MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. * Witness Printer took 167.37ms. Allocated memory is still 234.9MB. Free memory was 96.9MB in the beginning and 86.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 122 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 570 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 380 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 160 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 190 mSDtfsCounter, 160 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 353 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1418 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 170/212 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 775]: Loop Invariant Derived loop invariant: (((((i == 0) && (j == 0)) || ((i == 0) && (1 <= j))) || (((1 <= i) && (i <= 2)) && (j == 0))) || (((1 <= i) && (i <= 2)) && (1 <= j))) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) RESULT: Ultimate proved your program to be correct! [2024-10-13 14:06:04,259 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 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE