/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:40:04,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:40:04,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:40:04,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:40:04,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:40:04,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:40:04,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:40:04,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:40:04,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:40:04,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:40:04,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:40:04,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:40:04,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:40:04,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:40:04,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:40:04,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:40:04,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:40:04,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:40:04,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:40:04,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:40:04,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:40:04,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:40:04,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:40:04,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:40:04,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:40:04,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:40:04,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:40:04,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:40:04,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:40:04,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:40:04,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:40:04,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:40:04,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:40:04,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:40:04,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:40:04,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:40:04,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:40:04,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:40:04,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:40:04,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:40:04,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:40:04,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:40:04,722 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:40:04,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:40:04,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:40:04,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:40:04,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:40:04,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:40:04,724 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:40:04,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:40:04,724 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:40:04,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:40:04,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:40:04,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:40:04,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:40:04,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:40:04,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:40:04,725 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:40:04,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:40:04,725 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:40:04,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:40:04,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:40:04,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:40:04,726 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:40:04,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:40:04,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:40:04,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:40:04,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:40:04,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:40:04,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:40:04,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:40:04,727 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:40:04,728 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:40:04,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:40:04,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:40:04,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:40:04,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:40:04,934 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:40:04,936 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:40:04,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.i [2022-09-16 11:40:05,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ad2699c/f8358636d56d4d589042f64b801c9f3d/FLAG03f32f4c6 [2022-09-16 11:40:05,357 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:40:05,358 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_28-base_nr.i [2022-09-16 11:40:05,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ad2699c/f8358636d56d4d589042f64b801c9f3d/FLAG03f32f4c6 [2022-09-16 11:40:05,717 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10ad2699c/f8358636d56d4d589042f64b801c9f3d [2022-09-16 11:40:05,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:40:05,730 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:40:05,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:40:05,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:40:05,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:40:05,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:40:05" (1/1) ... [2022-09-16 11:40:05,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a610fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:05, skipping insertion in model container [2022-09-16 11:40:05,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:40:05" (1/1) ... [2022-09-16 11:40:05,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:40:05,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:40:06,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:40:06,142 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:40:06,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:40:06,234 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:40:06,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06 WrapperNode [2022-09-16 11:40:06,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:40:06,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:40:06,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:40:06,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:40:06,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06" (1/1) ... [2022-09-16 11:40:06,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06" (1/1) ... [2022-09-16 11:40:06,281 INFO L138 Inliner]: procedures = 265, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-09-16 11:40:06,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:40:06,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:40:06,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:40:06,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:40:06,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06" (1/1) ... [2022-09-16 11:40:06,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06" (1/1) ... [2022-09-16 11:40:06,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06" (1/1) ... [2022-09-16 11:40:06,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06" (1/1) ... [2022-09-16 11:40:06,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06" (1/1) ... [2022-09-16 11:40:06,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06" (1/1) ... [2022-09-16 11:40:06,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06" (1/1) ... [2022-09-16 11:40:06,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:40:06,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:40:06,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:40:06,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:40:06,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06" (1/1) ... [2022-09-16 11:40:06,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:40:06,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:40:06,354 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) [2022-09-16 11:40:06,360 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 [2022-09-16 11:40:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:40:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:40:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:40:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:40:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:40:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-16 11:40:06,378 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-16 11:40:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:40:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:40:06,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:40:06,379 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:40:06,453 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:40:06,454 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:40:06,562 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:40:06,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:40:06,567 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:40:06,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:40:06 BoogieIcfgContainer [2022-09-16 11:40:06,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:40:06,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:40:06,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:40:06,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:40:06,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:40:05" (1/3) ... [2022-09-16 11:40:06,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5378ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:40:06, skipping insertion in model container [2022-09-16 11:40:06,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:40:06" (2/3) ... [2022-09-16 11:40:06,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5378ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:40:06, skipping insertion in model container [2022-09-16 11:40:06,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:40:06" (3/3) ... [2022-09-16 11:40:06,574 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_28-base_nr.i [2022-09-16 11:40:06,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:40:06,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-09-16 11:40:06,593 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:40:06,635 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:40:06,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 147 flow [2022-09-16 11:40:06,701 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2022-09-16 11:40:06,701 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:40:06,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 70 events. 0/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-09-16 11:40:06,708 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 71 transitions, 147 flow [2022-09-16 11:40:06,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 62 transitions, 127 flow [2022-09-16 11:40:06,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:40:06,727 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=false, 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;@19aab2bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:40:06,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-09-16 11:40:06,740 INFO L130 PetriNetUnfolder]: 0/58 cut-off events. [2022-09-16 11:40:06,740 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:40:06,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:40:06,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:40:06,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-09-16 11:40:06,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:40:06,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1188604902, now seen corresponding path program 1 times [2022-09-16 11:40:06,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:40:06,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976011437] [2022-09-16 11:40:06,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:40:06,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:40:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:40:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:40:07,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:40:07,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976011437] [2022-09-16 11:40:07,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976011437] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:40:07,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:40:07,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:40:07,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250921347] [2022-09-16 11:40:07,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:40:07,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:40:07,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:40:07,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:40:07,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:40:07,071 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 71 [2022-09-16 11:40:07,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 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) [2022-09-16 11:40:07,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:40:07,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 71 [2022-09-16 11:40:07,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:40:07,109 INFO L130 PetriNetUnfolder]: 0/60 cut-off events. [2022-09-16 11:40:07,109 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-16 11:40:07,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 0/60 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 27 event pairs, 0 based on Foata normal form. 1/61 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-09-16 11:40:07,110 INFO L137 encePairwiseOnDemand]: 67/71 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2022-09-16 11:40:07,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 60 transitions, 133 flow [2022-09-16 11:40:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:40:07,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:40:07,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2022-09-16 11:40:07,120 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8838028169014085 [2022-09-16 11:40:07,120 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 251 transitions. [2022-09-16 11:40:07,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 251 transitions. [2022-09-16 11:40:07,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:40:07,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 251 transitions. [2022-09-16 11:40:07,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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) [2022-09-16 11:40:07,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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) [2022-09-16 11:40:07,130 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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) [2022-09-16 11:40:07,131 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 127 flow. Second operand 4 states and 251 transitions. [2022-09-16 11:40:07,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 60 transitions, 133 flow [2022-09-16 11:40:07,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 60 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:40:07,135 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2022-09-16 11:40:07,136 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2022-09-16 11:40:07,139 INFO L287 CegarLoopForPetriNet]: 66 programPoint places, 0 predicate places. [2022-09-16 11:40:07,139 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2022-09-16 11:40:07,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 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) [2022-09-16 11:40:07,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2022-09-16 11:40:07,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2022-09-16 11:40:07,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2022-09-16 11:40:07,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2022-09-16 11:40:07,142 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 5 remaining) [2022-09-16 11:40:07,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:40:07,142 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-09-16 11:40:07,147 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:40:07,147 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:40:07,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:40:07 BasicIcfg [2022-09-16 11:40:07,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:40:07,152 INFO L158 Benchmark]: Toolchain (without parser) took 1422.14ms. Allocated memory was 224.4MB in the beginning and 269.5MB in the end (delta: 45.1MB). Free memory was 189.3MB in the beginning and 220.0MB in the end (delta: -30.7MB). Peak memory consumption was 14.2MB. Max. memory is 8.0GB. [2022-09-16 11:40:07,153 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 224.4MB. Free memory is still 180.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:40:07,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 502.34ms. Allocated memory is still 224.4MB. Free memory was 189.1MB in the beginning and 177.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. [2022-09-16 11:40:07,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.59ms. Allocated memory is still 224.4MB. Free memory was 177.4MB in the beginning and 175.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:40:07,154 INFO L158 Benchmark]: Boogie Preprocessor took 20.51ms. Allocated memory is still 224.4MB. Free memory was 175.1MB in the beginning and 173.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:40:07,154 INFO L158 Benchmark]: RCFGBuilder took 265.10ms. Allocated memory is still 224.4MB. Free memory was 173.6MB in the beginning and 161.7MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-09-16 11:40:07,155 INFO L158 Benchmark]: TraceAbstraction took 581.70ms. Allocated memory was 224.4MB in the beginning and 269.5MB in the end (delta: 45.1MB). Free memory was 161.1MB in the beginning and 220.0MB in the end (delta: -59.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:40:07,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 224.4MB. Free memory is still 180.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 502.34ms. Allocated memory is still 224.4MB. Free memory was 189.1MB in the beginning and 177.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.59ms. Allocated memory is still 224.4MB. Free memory was 177.4MB in the beginning and 175.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.51ms. Allocated memory is still 224.4MB. Free memory was 175.1MB in the beginning and 173.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 265.10ms. Allocated memory is still 224.4MB. Free memory was 173.6MB in the beginning and 161.7MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 581.70ms. Allocated memory was 224.4MB in the beginning and 269.5MB in the end (delta: 45.1MB). Free memory was 161.1MB in the beginning and 220.0MB in the end (delta: -59.0MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 924]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 98 locations, 5 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:40:07,183 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...