./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.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 7a262e05e4496d34901f24af4dfa792436c621eaf484a3e13626b3b224666ac4 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:45:54,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:45:54,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:45:54,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:45:54,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:45:54,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:45:54,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:45:54,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:45:54,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:45:54,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:45:54,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:45:54,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:45:54,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:45:54,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:45:54,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:45:54,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:45:54,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:45:54,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:45:54,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:45:54,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:45:54,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:45:54,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:45:54,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:45:54,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:45:54,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:45:54,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:45:54,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:45:54,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:45:54,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:45:54,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:45:54,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:45:54,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:45:54,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:45:54,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:45:54,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:45:54,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:45:54,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:45:54,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:45:54,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:45:54,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:45:54,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:45:54,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:45:54,905 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:45:54,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:45:54,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:45:54,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:45:54,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:45:54,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:45:54,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:45:54,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:45:54,909 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:45:54,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:45:54,910 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:45:54,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:45:54,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:45:54,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:45:54,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:45:54,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:45:54,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:45:54,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:45:54,912 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:45:54,912 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:45:54,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:45:54,912 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:45:54,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:45:54,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:45:54,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:45:54,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:45:54,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:45:54,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:45:54,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:45:54,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:45:54,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:45:54,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:45:54,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:45:54,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:45:54,915 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:45:54,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:45:54,915 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:45:54,915 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a262e05e4496d34901f24af4dfa792436c621eaf484a3e13626b3b224666ac4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:45:55,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:45:55,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:45:55,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:45:55,200 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:45:55,200 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:45:55,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i [2023-08-30 13:45:56,404 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:45:56,697 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:45:56,697 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i [2023-08-30 13:45:56,716 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9954b80f9/1aa79f81e26e44059ddd71ee1306ddfd/FLAG78782163e [2023-08-30 13:45:56,733 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9954b80f9/1aa79f81e26e44059ddd71ee1306ddfd [2023-08-30 13:45:56,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:45:56,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:45:56,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:45:56,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:45:56,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:45:56,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:45:56" (1/1) ... [2023-08-30 13:45:56,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664d5058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:56, skipping insertion in model container [2023-08-30 13:45:56,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:45:56" (1/1) ... [2023-08-30 13:45:56,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:45:56,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:45:57,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:45:57,193 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:45:57,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:45:57,307 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:45:57,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57 WrapperNode [2023-08-30 13:45:57,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:45:57,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:45:57,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:45:57,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:45:57,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (1/1) ... [2023-08-30 13:45:57,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (1/1) ... [2023-08-30 13:45:57,368 INFO L138 Inliner]: procedures = 266, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-08-30 13:45:57,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:45:57,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:45:57,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:45:57,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:45:57,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (1/1) ... [2023-08-30 13:45:57,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (1/1) ... [2023-08-30 13:45:57,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (1/1) ... [2023-08-30 13:45:57,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (1/1) ... [2023-08-30 13:45:57,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (1/1) ... [2023-08-30 13:45:57,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (1/1) ... [2023-08-30 13:45:57,403 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (1/1) ... [2023-08-30 13:45:57,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (1/1) ... [2023-08-30 13:45:57,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:45:57,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:45:57,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:45:57,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:45:57,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (1/1) ... [2023-08-30 13:45:57,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:45:57,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:45:57,444 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) [2023-08-30 13:45:57,465 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 [2023-08-30 13:45:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:45:57,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:45:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:45:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 13:45:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:45:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 13:45:57,481 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 13:45:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:45:57,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:45:57,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:45:57,483 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:45:57,678 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:45:57,679 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:45:57,807 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:45:57,813 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:45:57,813 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:45:57,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:45:57 BoogieIcfgContainer [2023-08-30 13:45:57,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:45:57,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:45:57,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:45:57,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:45:57,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:45:56" (1/3) ... [2023-08-30 13:45:57,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2632fa5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:45:57, skipping insertion in model container [2023-08-30 13:45:57,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:57" (2/3) ... [2023-08-30 13:45:57,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2632fa5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:45:57, skipping insertion in model container [2023-08-30 13:45:57,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:45:57" (3/3) ... [2023-08-30 13:45:57,822 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17a-ps_add1_nr.i [2023-08-30 13:45:57,828 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:45:57,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:45:57,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-30 13:45:57,837 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:45:57,880 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:45:57,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 80 transitions, 165 flow [2023-08-30 13:45:57,969 INFO L130 PetriNetUnfolder]: 3/79 cut-off events. [2023-08-30 13:45:57,974 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:45:57,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 3/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-08-30 13:45:57,979 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 80 transitions, 165 flow [2023-08-30 13:45:57,985 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 79 transitions, 161 flow [2023-08-30 13:45:57,989 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:45:58,001 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 79 transitions, 161 flow [2023-08-30 13:45:58,004 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 79 transitions, 161 flow [2023-08-30 13:45:58,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 79 transitions, 161 flow [2023-08-30 13:45:58,040 INFO L130 PetriNetUnfolder]: 3/79 cut-off events. [2023-08-30 13:45:58,040 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:45:58,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 3/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-08-30 13:45:58,042 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-30 13:46:00,282 INFO L134 LiptonReduction]: Checked pairs total: 2189 [2023-08-30 13:46:00,282 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-08-30 13:46:00,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:46:00,297 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e6a54bb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:46:00,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-30 13:46:00,300 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 13:46:00,300 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:46:00,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:46:00,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 13:46:00,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 13:46:00,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:46:00,305 INFO L85 PathProgramCache]: Analyzing trace with hash 299139, now seen corresponding path program 1 times [2023-08-30 13:46:00,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:46:00,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994605254] [2023-08-30 13:46:00,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:46:00,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:46:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:46:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:46:00,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:46:00,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994605254] [2023-08-30 13:46:00,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994605254] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:46:00,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:46:00,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:46:00,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343971043] [2023-08-30 13:46:00,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:46:00,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:46:00,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:46:00,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:46:00,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:46:00,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 170 [2023-08-30 13:46:00,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2023-08-30 13:46:00,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:46:00,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 170 [2023-08-30 13:46:00,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:46:00,637 INFO L130 PetriNetUnfolder]: 61/132 cut-off events. [2023-08-30 13:46:00,637 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:46:00,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 132 events. 61/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 503 event pairs, 54 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 260. Up to 132 conditions per place. [2023-08-30 13:46:00,639 INFO L137 encePairwiseOnDemand]: 166/170 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-30 13:46:00,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 75 flow [2023-08-30 13:46:00,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:46:00,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:46:00,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2023-08-30 13:46:00,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45294117647058824 [2023-08-30 13:46:00,652 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2023-08-30 13:46:00,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2023-08-30 13:46:00,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:46:00,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2023-08-30 13:46:00,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2023-08-30 13:46:00,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2023-08-30 13:46:00,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2023-08-30 13:46:00,664 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 45 flow. Second operand 3 states and 231 transitions. [2023-08-30 13:46:00,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 75 flow [2023-08-30 13:46:00,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:46:00,667 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 40 flow [2023-08-30 13:46:00,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-08-30 13:46:00,671 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2023-08-30 13:46:00,672 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 40 flow [2023-08-30 13:46:00,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2023-08-30 13:46:00,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:46:00,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 13:46:00,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:46:00,673 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 13:46:00,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:46:00,674 INFO L85 PathProgramCache]: Analyzing trace with hash 299141, now seen corresponding path program 1 times [2023-08-30 13:46:00,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:46:00,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902054514] [2023-08-30 13:46:00,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:46:00,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:46:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 13:46:00,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 13:46:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 13:46:00,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 13:46:00,714 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 13:46:00,716 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-08-30 13:46:00,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-08-30 13:46:00,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-08-30 13:46:00,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-08-30 13:46:00,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-08-30 13:46:00,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-08-30 13:46:00,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-08-30 13:46:00,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-08-30 13:46:00,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2023-08-30 13:46:00,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-08-30 13:46:00,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-08-30 13:46:00,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-08-30 13:46:00,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-08-30 13:46:00,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:46:00,720 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 13:46:00,726 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:46:00,726 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:46:00,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:46:00 BasicIcfg [2023-08-30 13:46:00,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:46:00,741 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:46:00,741 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:46:00,741 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:46:00,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:45:57" (3/4) ... [2023-08-30 13:46:00,743 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 13:46:00,772 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:46:00,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:46:00,773 INFO L158 Benchmark]: Toolchain (without parser) took 4035.71ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 49.7MB in the beginning and 44.6MB in the end (delta: 5.2MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-08-30 13:46:00,773 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:46:00,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 568.96ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 40.5MB in the end (delta: 9.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-08-30 13:46:00,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.72ms. Allocated memory is still 73.4MB. Free memory was 40.5MB in the beginning and 38.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:46:00,774 INFO L158 Benchmark]: Boogie Preprocessor took 43.60ms. Allocated memory is still 73.4MB. Free memory was 38.2MB in the beginning and 37.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:46:00,774 INFO L158 Benchmark]: RCFGBuilder took 401.04ms. Allocated memory is still 73.4MB. Free memory was 37.0MB in the beginning and 46.7MB in the end (delta: -9.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2023-08-30 13:46:00,775 INFO L158 Benchmark]: TraceAbstraction took 2924.07ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 45.9MB in the beginning and 46.7MB in the end (delta: -853.3kB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2023-08-30 13:46:00,775 INFO L158 Benchmark]: Witness Printer took 31.11ms. Allocated memory is still 88.1MB. Free memory was 46.7MB in the beginning and 44.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:46:00,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 568.96ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 40.5MB in the end (delta: 9.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.72ms. Allocated memory is still 73.4MB. Free memory was 40.5MB in the beginning and 38.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.60ms. Allocated memory is still 73.4MB. Free memory was 38.2MB in the beginning and 37.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 401.04ms. Allocated memory is still 73.4MB. Free memory was 37.0MB in the beginning and 46.7MB in the end (delta: -9.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2924.07ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 45.9MB in the beginning and 46.7MB in the end (delta: -853.3kB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 31.11ms. Allocated memory is still 88.1MB. Free memory was 46.7MB in the beginning and 44.6MB in the end (delta: 2.1MB). 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: 2.3s, 80 PlacesBefore, 24 PlacesAfterwards, 79 TransitionsBefore, 21 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 90 TotalNumberOfCompositions, 2189 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1281, independent: 1191, independent conditional: 0, independent unconditional: 1191, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 668, independent: 643, independent conditional: 0, independent unconditional: 643, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1281, independent: 548, independent conditional: 0, independent unconditional: 548, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 944]: integer overflow possible integer overflow possible We found a FailurePath: [L928] 0 int glob; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L937] 0 int i = __VERIFIER_nondet_int(); [L938] 0 pthread_t id; [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=2147483647, id={2:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L941] COND TRUE 0 \read(i) [L944] 0 i++ VAL [arg={0:0}, glob=0, i++=2147483647, i=2147483647, id={2:0}, m={1:0}] - UnprovableResult [Line: 944]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 939]: 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: 932]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 932]: 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, 93 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2023-08-30 13:46:00,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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)