./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c Calling Ultimate with: /usr/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 ../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.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.graphml --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 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:31:51,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:31:51,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:31:51,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:31:51,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:31:51,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:31:51,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:31:51,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:31:51,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:31:51,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:31:51,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:31:51,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:31:51,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:31:51,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:31:51,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:31:51,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:31:51,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:31:51,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:31:51,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:31:51,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:31:51,908 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:31:51,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:31:51,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:31:51,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:31:51,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:31:51,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:31:51,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:31:51,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:31:51,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:31:51,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:31:51,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:31:51,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:31:51,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:31:51,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:31:51,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:31:51,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:31:51,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:31:51,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:31:51,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:31:51,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:31:51,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:31:51,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:31:51,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:31:51,951 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:31:51,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:31:51,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:31:51,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:31:51,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:31:51,953 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:31:51,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:31:51,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:31:51,954 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:31:51,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:31:51,954 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:31:51,954 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:31:51,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:31:51,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:31:51,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:31:51,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:31:51,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:31:51,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:31:51,956 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:31:51,956 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:31:51,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:31:51,956 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:31:51,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:31:51,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:31:51,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:31:51,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:31:51,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:31:51,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:31:51,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:31:51,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:31:51,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:31:51,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:31:51,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:31:51,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b8a2d8a35be535b4f8c573d98b12278b19043c6b0cec82927e2ac6d7dd36ebb [2022-07-13 02:31:52,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:31:52,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:31:52,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:31:52,182 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:31:52,182 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:31:52,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-07-13 02:31:52,258 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a7c7176/06a2eb0829ca4f90b21c36a457a6101f/FLAG40f06639e [2022-07-13 02:31:52,682 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:31:52,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-07-13 02:31:52,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a7c7176/06a2eb0829ca4f90b21c36a457a6101f/FLAG40f06639e [2022-07-13 02:31:53,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2a7c7176/06a2eb0829ca4f90b21c36a457a6101f [2022-07-13 02:31:53,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:31:53,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:31:53,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:31:53,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:31:53,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:31:53,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581dff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53, skipping insertion in model container [2022-07-13 02:31:53,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:31:53,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:31:53,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2022-07-13 02:31:53,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:31:53,517 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:31:53,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true.i[1107,1120] [2022-07-13 02:31:53,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:31:53,568 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:31:53,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53 WrapperNode [2022-07-13 02:31:53,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:31:53,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:31:53,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:31:53,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:31:53,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,599 INFO L137 Inliner]: procedures = 163, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 113 [2022-07-13 02:31:53,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:31:53,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:31:53,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:31:53,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:31:53,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:31:53,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:31:53,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:31:53,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:31:53,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53" (1/1) ... [2022-07-13 02:31:53,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:31:53,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:31:53,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 02:31:53,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 02:31:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:31:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:31:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:31:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:31:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 02:31:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 02:31:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:31:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:31:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:31:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:31:53,689 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 02:31:53,758 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:31:53,759 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:31:53,961 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:31:53,967 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:31:53,975 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 02:31:53,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:31:53 BoogieIcfgContainer [2022-07-13 02:31:53,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:31:53,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:31:53,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:31:53,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:31:53,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:31:53" (1/3) ... [2022-07-13 02:31:53,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322a0cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:31:53, skipping insertion in model container [2022-07-13 02:31:53,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:53" (2/3) ... [2022-07-13 02:31:53,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322a0cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:31:53, skipping insertion in model container [2022-07-13 02:31:53,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:31:53" (3/3) ... [2022-07-13 02:31:53,985 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true.i [2022-07-13 02:31:53,989 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:31:53,996 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:31:53,996 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-13 02:31:53,997 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:31:54,048 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-13 02:31:54,071 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:31:54,079 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 134 transitions, 273 flow [2022-07-13 02:31:54,081 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 134 transitions, 273 flow [2022-07-13 02:31:54,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 134 transitions, 273 flow [2022-07-13 02:31:54,147 INFO L129 PetriNetUnfolder]: 4/137 cut-off events. [2022-07-13 02:31:54,150 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 02:31:54,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 137 events. 4/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-07-13 02:31:54,158 INFO L116 LiptonReduction]: Number of co-enabled transitions 3364 [2022-07-13 02:31:57,935 INFO L131 LiptonReduction]: Checked pairs total: 9757 [2022-07-13 02:31:57,936 INFO L133 LiptonReduction]: Total number of compositions: 132 [2022-07-13 02:31:57,941 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 33 transitions, 71 flow [2022-07-13 02:31:57,957 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 170 states, 161 states have (on average 2.0559006211180124) internal successors, (331), 169 states have internal predecessors, (331), 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) [2022-07-13 02:31:57,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:31:57,973 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5fc2795, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f95dcae [2022-07-13 02:31:57,973 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-13 02:31:57,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 161 states have (on average 2.0559006211180124) internal successors, (331), 169 states have internal predecessors, (331), 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) [2022-07-13 02:31:57,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 02:31:57,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:31:57,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 02:31:57,978 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:31:57,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:31:57,982 INFO L85 PathProgramCache]: Analyzing trace with hash 15574927, now seen corresponding path program 1 times [2022-07-13 02:31:57,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:31:57,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557121180] [2022-07-13 02:31:57,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:31:57,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:31:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:31:58,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:31:58,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:31:58,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557121180] [2022-07-13 02:31:58,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557121180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:31:58,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:31:58,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:31:58,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248714396] [2022-07-13 02:31:58,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:31:58,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 02:31:58,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:31:58,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 02:31:58,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:31:58,104 INFO L87 Difference]: Start difference. First operand has 170 states, 161 states have (on average 2.0559006211180124) internal successors, (331), 169 states have internal predecessors, (331), 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) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-07-13 02:31:58,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:31:58,135 INFO L93 Difference]: Finished difference Result 170 states and 315 transitions. [2022-07-13 02:31:58,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 02:31:58,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2022-07-13 02:31:58,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:31:58,142 INFO L225 Difference]: With dead ends: 170 [2022-07-13 02:31:58,143 INFO L226 Difference]: Without dead ends: 160 [2022-07-13 02:31:58,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:31:58,145 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:31:58,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:31:58,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-13 02:31:58,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-07-13 02:31:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 152 states have (on average 1.9407894736842106) internal successors, (295), 159 states have internal predecessors, (295), 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) [2022-07-13 02:31:58,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 295 transitions. [2022-07-13 02:31:58,173 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 295 transitions. Word has length 4 [2022-07-13 02:31:58,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:31:58,173 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 295 transitions. [2022-07-13 02:31:58,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-07-13 02:31:58,174 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 295 transitions. [2022-07-13 02:31:58,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:31:58,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:31:58,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:31:58,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:31:58,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:31:58,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:31:58,175 INFO L85 PathProgramCache]: Analyzing trace with hash 2081054789, now seen corresponding path program 1 times [2022-07-13 02:31:58,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:31:58,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938279919] [2022-07-13 02:31:58,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:31:58,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:31:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:31:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:31:58,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:31:58,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938279919] [2022-07-13 02:31:58,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938279919] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:31:58,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:31:58,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:31:58,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177969990] [2022-07-13 02:31:58,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:31:58,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:31:58,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:31:58,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:31:58,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:31:58,220 INFO L87 Difference]: Start difference. First operand 160 states and 295 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-07-13 02:31:58,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:31:58,242 INFO L93 Difference]: Finished difference Result 147 states and 269 transitions. [2022-07-13 02:31:58,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:31:58,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-07-13 02:31:58,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:31:58,244 INFO L225 Difference]: With dead ends: 147 [2022-07-13 02:31:58,244 INFO L226 Difference]: Without dead ends: 147 [2022-07-13 02:31:58,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:31:58,245 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:31:58,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:31:58,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-07-13 02:31:58,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2022-07-13 02:31:58,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 142 states have (on average 1.8943661971830985) internal successors, (269), 146 states have internal predecessors, (269), 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) [2022-07-13 02:31:58,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 269 transitions. [2022-07-13 02:31:58,252 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 269 transitions. Word has length 6 [2022-07-13 02:31:58,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:31:58,253 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 269 transitions. [2022-07-13 02:31:58,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-07-13 02:31:58,253 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 269 transitions. [2022-07-13 02:31:58,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:31:58,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:31:58,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:31:58,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:31:58,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:31:58,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:31:58,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2081054814, now seen corresponding path program 1 times [2022-07-13 02:31:58,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:31:58,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820522749] [2022-07-13 02:31:58,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:31:58,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:31:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:31:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:31:58,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:31:58,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820522749] [2022-07-13 02:31:58,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820522749] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:31:58,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:31:58,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:31:58,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960519344] [2022-07-13 02:31:58,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:31:58,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:31:58,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:31:58,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:31:58,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:31:58,287 INFO L87 Difference]: Start difference. First operand 147 states and 269 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-07-13 02:31:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:31:58,306 INFO L93 Difference]: Finished difference Result 134 states and 243 transitions. [2022-07-13 02:31:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:31:58,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-07-13 02:31:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:31:58,307 INFO L225 Difference]: With dead ends: 134 [2022-07-13 02:31:58,307 INFO L226 Difference]: Without dead ends: 114 [2022-07-13 02:31:58,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:31:58,308 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:31:58,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:31:58,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-07-13 02:31:58,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-07-13 02:31:58,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.8214285714285714) internal successors, (204), 113 states have internal predecessors, (204), 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) [2022-07-13 02:31:58,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 204 transitions. [2022-07-13 02:31:58,314 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 204 transitions. Word has length 6 [2022-07-13 02:31:58,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:31:58,314 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 204 transitions. [2022-07-13 02:31:58,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-07-13 02:31:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 204 transitions. [2022-07-13 02:31:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 02:31:58,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:31:58,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:31:58,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:31:58,316 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:31:58,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:31:58,316 INFO L85 PathProgramCache]: Analyzing trace with hash -615938911, now seen corresponding path program 1 times [2022-07-13 02:31:58,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:31:58,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435191088] [2022-07-13 02:31:58,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:31:58,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:31:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:31:58,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:31:58,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:31:58,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435191088] [2022-07-13 02:31:58,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435191088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:31:58,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:31:58,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:31:58,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669652747] [2022-07-13 02:31:58,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:31:58,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:31:58,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:31:58,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:31:58,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:31:58,368 INFO L87 Difference]: Start difference. First operand 114 states and 204 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) [2022-07-13 02:31:58,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:31:58,403 INFO L93 Difference]: Finished difference Result 136 states and 235 transitions. [2022-07-13 02:31:58,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:31:58,404 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 8 [2022-07-13 02:31:58,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:31:58,404 INFO L225 Difference]: With dead ends: 136 [2022-07-13 02:31:58,404 INFO L226 Difference]: Without dead ends: 94 [2022-07-13 02:31:58,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:31:58,405 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:31:58,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 30 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:31:58,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-07-13 02:31:58,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-07-13 02:31:58,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 92 states have (on average 1.7826086956521738) internal successors, (164), 93 states have internal predecessors, (164), 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) [2022-07-13 02:31:58,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 164 transitions. [2022-07-13 02:31:58,410 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 164 transitions. Word has length 8 [2022-07-13 02:31:58,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:31:58,410 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 164 transitions. [2022-07-13 02:31:58,410 INFO L496 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) [2022-07-13 02:31:58,410 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 164 transitions. [2022-07-13 02:31:58,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 02:31:58,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:31:58,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:31:58,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:31:58,411 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:31:58,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:31:58,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2020474303, now seen corresponding path program 1 times [2022-07-13 02:31:58,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:31:58,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516854861] [2022-07-13 02:31:58,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:31:58,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:31:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:31:58,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:31:58,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:31:58,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516854861] [2022-07-13 02:31:58,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516854861] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:31:58,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:31:58,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:31:58,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247865041] [2022-07-13 02:31:58,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:31:58,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:31:58,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:31:58,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:31:58,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:31:58,463 INFO L87 Difference]: Start difference. First operand 94 states and 164 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-07-13 02:31:58,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:31:58,506 INFO L93 Difference]: Finished difference Result 74 states and 110 transitions. [2022-07-13 02:31:58,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:31:58,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-07-13 02:31:58,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:31:58,511 INFO L225 Difference]: With dead ends: 74 [2022-07-13 02:31:58,511 INFO L226 Difference]: Without dead ends: 72 [2022-07-13 02:31:58,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:31:58,513 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:31:58,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:31:58,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-07-13 02:31:58,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2022-07-13 02:31:58,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 62 states have (on average 1.6451612903225807) internal successors, (102), 65 states have internal predecessors, (102), 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) [2022-07-13 02:31:58,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 102 transitions. [2022-07-13 02:31:58,518 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 102 transitions. Word has length 12 [2022-07-13 02:31:58,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:31:58,518 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 102 transitions. [2022-07-13 02:31:58,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-07-13 02:31:58,518 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 102 transitions. [2022-07-13 02:31:58,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 02:31:58,519 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:31:58,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:31:58,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 02:31:58,520 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:31:58,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:31:58,521 INFO L85 PathProgramCache]: Analyzing trace with hash 553072016, now seen corresponding path program 1 times [2022-07-13 02:31:58,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:31:58,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711195651] [2022-07-13 02:31:58,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:31:58,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:31:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:31:58,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:31:58,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:31:58,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711195651] [2022-07-13 02:31:58,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711195651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:31:58,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:31:58,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:31:58,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148984595] [2022-07-13 02:31:58,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:31:58,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:31:58,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:31:58,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:31:58,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:31:58,578 INFO L87 Difference]: Start difference. First operand 66 states and 102 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-13 02:31:58,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:31:58,609 INFO L93 Difference]: Finished difference Result 61 states and 95 transitions. [2022-07-13 02:31:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:31:58,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 [2022-07-13 02:31:58,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:31:58,610 INFO L225 Difference]: With dead ends: 61 [2022-07-13 02:31:58,610 INFO L226 Difference]: Without dead ends: 58 [2022-07-13 02:31:58,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:31:58,611 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 19 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:31:58,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:31:58,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-07-13 02:31:58,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2022-07-13 02:31:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.6363636363636365) internal successors, (90), 56 states have internal predecessors, (90), 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) [2022-07-13 02:31:58,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 90 transitions. [2022-07-13 02:31:58,614 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 90 transitions. Word has length 14 [2022-07-13 02:31:58,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:31:58,614 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 90 transitions. [2022-07-13 02:31:58,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-13 02:31:58,614 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 90 transitions. [2022-07-13 02:31:58,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:31:58,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:31:58,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:31:58,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 02:31:58,615 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:31:58,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:31:58,616 INFO L85 PathProgramCache]: Analyzing trace with hash -243599943, now seen corresponding path program 1 times [2022-07-13 02:31:58,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:31:58,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033123675] [2022-07-13 02:31:58,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:31:58,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:31:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:31:58,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:31:58,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:31:58,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033123675] [2022-07-13 02:31:58,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033123675] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:31:58,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:31:58,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:31:58,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941158138] [2022-07-13 02:31:58,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:31:58,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:31:58,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:31:58,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:31:58,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:31:58,653 INFO L87 Difference]: Start difference. First operand 57 states and 90 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2022-07-13 02:31:58,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:31:58,678 INFO L93 Difference]: Finished difference Result 53 states and 83 transitions. [2022-07-13 02:31:58,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:31:58,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 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) Word has length 18 [2022-07-13 02:31:58,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:31:58,679 INFO L225 Difference]: With dead ends: 53 [2022-07-13 02:31:58,680 INFO L226 Difference]: Without dead ends: 53 [2022-07-13 02:31:58,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:31:58,680 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:31:58,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 10 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:31:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-07-13 02:31:58,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-07-13 02:31:58,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.5961538461538463) internal successors, (83), 52 states have internal predecessors, (83), 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) [2022-07-13 02:31:58,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 83 transitions. [2022-07-13 02:31:58,683 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 83 transitions. Word has length 18 [2022-07-13 02:31:58,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:31:58,683 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 83 transitions. [2022-07-13 02:31:58,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2022-07-13 02:31:58,683 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 83 transitions. [2022-07-13 02:31:58,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:31:58,684 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:31:58,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:31:58,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 02:31:58,684 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:31:58,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:31:58,685 INFO L85 PathProgramCache]: Analyzing trace with hash -243599997, now seen corresponding path program 1 times [2022-07-13 02:31:58,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:31:58,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398594240] [2022-07-13 02:31:58,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:31:58,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:31:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:31:58,701 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:31:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:31:58,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:31:58,726 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:31:58,727 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-07-13 02:31:58,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-07-13 02:31:58,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 7 remaining) [2022-07-13 02:31:58,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-07-13 02:31:58,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-07-13 02:31:58,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-07-13 02:31:58,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-07-13 02:31:58,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 02:31:58,731 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:31:58,734 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 02:31:58,734 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 02:31:58,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:31:58 BasicIcfg [2022-07-13 02:31:58,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 02:31:58,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 02:31:58,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 02:31:58,770 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 02:31:58,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:31:53" (3/4) ... [2022-07-13 02:31:58,771 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 02:31:58,808 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 02:31:58,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 02:31:58,809 INFO L158 Benchmark]: Toolchain (without parser) took 5600.81ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 57.4MB in the beginning and 43.2MB in the end (delta: 14.3MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2022-07-13 02:31:58,811 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 47.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:31:58,811 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.57ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 57.4MB in the end (delta: -139.9kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 02:31:58,811 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.01ms. Allocated memory is still 92.3MB. Free memory was 57.4MB in the beginning and 55.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:31:58,812 INFO L158 Benchmark]: Boogie Preprocessor took 29.22ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 53.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:31:58,812 INFO L158 Benchmark]: RCFGBuilder took 348.22ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 53.8MB in the beginning and 85.1MB in the end (delta: -31.3MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-07-13 02:31:58,812 INFO L158 Benchmark]: TraceAbstraction took 4790.84ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 84.6MB in the beginning and 47.4MB in the end (delta: 37.2MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-07-13 02:31:58,812 INFO L158 Benchmark]: Witness Printer took 38.67ms. Allocated memory is still 136.3MB. Free memory was 47.4MB in the beginning and 43.2MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:31:58,813 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 47.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.57ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 57.4MB in the end (delta: -139.9kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.01ms. Allocated memory is still 92.3MB. Free memory was 57.4MB in the beginning and 55.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.22ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 53.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 348.22ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 53.8MB in the beginning and 85.1MB in the end (delta: -31.3MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4790.84ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 84.6MB in the beginning and 47.4MB in the end (delta: 37.2MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 38.67ms. Allocated memory is still 136.3MB. Free memory was 47.4MB in the beginning and 43.2MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 133 PlacesBefore, 34 PlacesAfterwards, 134 TransitionsBefore, 33 TransitionsAfterwards, 3364 CoEnabledTransitionPairs, 8 FixpointIterations, 48 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 2 ChoiceCompositions, 132 TotalNumberOfCompositions, 9757 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4644, positive: 4274, positive conditional: 0, positive unconditional: 4274, negative: 370, negative conditional: 0, negative unconditional: 370, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2587, positive: 2475, positive conditional: 0, positive unconditional: 2475, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2587, positive: 2395, positive conditional: 0, positive unconditional: 2395, negative: 192, negative conditional: 0, negative unconditional: 192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 192, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 224, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 157, negative conditional: 0, negative unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4644, positive: 1799, positive conditional: 0, positive unconditional: 1799, negative: 258, negative conditional: 0, negative unconditional: 258, unknown: 2587, unknown conditional: 0, unknown unconditional: 2587] , Statistics on independence cache: Total cache size (in pairs): 197, Positive cache size: 161, Positive conditional cache size: 0, Positive unconditional cache size: 161, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36 - 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 - CounterExampleResult [Line: 701]: integer overflow possible integer overflow possible We found a FailurePath: [L682] 0 int g = 0; [L683] 0 int h = 0; [L684] 0 int i = 0; [L685] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L686] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_mutex_t C = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L710] 0 int x = __VERIFIER_nondet_int(); [L711] COND TRUE 0 x > -1000 [L712] 0 pthread_t id; [L713] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=0, id={6:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=2147483617] [L689] 1 int x = __VERIFIER_nondet_int(); [L690] 1 int y = __VERIFIER_nondet_int(); [L691] 1 int z = __VERIFIER_nondet_int(); [L692] COND TRUE 1 x < 1000 [L716] 0 i = 11 VAL [A={3:0}, B={4:0}, C={5:0}, g=0, h=0, i=11, id={6:0}, x=2147483617] [L717] 0 g = x [L718] EXPR 0 x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=0, i=11, id={6:0}, x=2147483617] [L718] 0 h = x - 17 VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483600, i=11, id={6:0}, x=2147483617] [L721] 0 h = x VAL [A={3:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, id={6:0}, x=2147483617] [L695] 1 x = g VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=0, z=0] [L696] 1 y = h [L697] CALL 1 __VERIFIER_assert(y <= x) [L19] COND FALSE 1 !(!(cond)) [L697] RET 1 __VERIFIER_assert(y <= x) [L699] CALL 1 __VERIFIER_assert(x == y) [L19] COND FALSE 1 !(!(cond)) [L699] RET 1 __VERIFIER_assert(x == y) [L701] 1 x + 31 VAL [A={3:0}, arg={0:0}, arg={0:0}, B={4:0}, C={5:0}, g=2147483617, h=2147483617, i=11, x=2147483617, y=2147483617, z=0] - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 186 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 265 IncrementalHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 38 mSDtfsCounter, 265 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=0, InterpolantAutomatonStates: 25, 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, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-13 02:31:58,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)