/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 18:29:55,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 18:29:55,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 18:29:55,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 18:29:55,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 18:29:55,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 18:29:55,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 18:29:55,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 18:29:55,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 18:29:55,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 18:29:55,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 18:29:55,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 18:29:55,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 18:29:55,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 18:29:55,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 18:29:55,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 18:29:55,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 18:29:55,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 18:29:55,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 18:29:55,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 18:29:55,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 18:29:55,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 18:29:55,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 18:29:55,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 18:29:55,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 18:29:55,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 18:29:55,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 18:29:55,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 18:29:55,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 18:29:55,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 18:29:55,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 18:29:55,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 18:29:55,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 18:29:55,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 18:29:55,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 18:29:55,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 18:29:55,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 18:29:55,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 18:29:55,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 18:29:55,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 18:29:55,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 18:29:55,766 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-SemanticLbe.epf [2022-12-12 18:29:55,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 18:29:55,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 18:29:55,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 18:29:55,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 18:29:55,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 18:29:55,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 18:29:55,793 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 18:29:55,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 18:29:55,793 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 18:29:55,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 18:29:55,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 18:29:55,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 18:29:55,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 18:29:55,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 18:29:55,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 18:29:55,794 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 18:29:55,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 18:29:55,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 18:29:55,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 18:29:55,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 18:29:55,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 18:29:55,795 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 18:29:55,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 18:29:55,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:29:55,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 18:29:55,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 18:29:55,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 18:29:55,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 18:29:55,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 18:29:55,796 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 18:29:55,796 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 18:29:56,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 18:29:56,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 18:29:56,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 18:29:56,074 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 18:29:56,075 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 18:29:56,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2022-12-12 18:29:57,098 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 18:29:57,323 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 18:29:57,323 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2022-12-12 18:29:57,338 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a88ef0f75/401d84dbbc5e4c2c81e75bd36e4865e9/FLAGc5579356f [2022-12-12 18:29:57,351 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a88ef0f75/401d84dbbc5e4c2c81e75bd36e4865e9 [2022-12-12 18:29:57,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 18:29:57,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 18:29:57,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 18:29:57,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 18:29:57,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 18:29:57,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bd0c724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57, skipping insertion in model container [2022-12-12 18:29:57,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 18:29:57,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 18:29:57,507 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 18:29:57,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2022-12-12 18:29:57,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:29:57,639 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 18:29:57,661 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-12 18:29:57,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,676 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,677 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2022-12-12 18:29:57,677 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,678 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,678 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 18:29:57,678 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 18:29:57,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 18:29:57,715 INFO L208 MainTranslator]: Completed translation [2022-12-12 18:29:57,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57 WrapperNode [2022-12-12 18:29:57,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 18:29:57,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 18:29:57,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 18:29:57,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 18:29:57,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,761 INFO L138 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78 [2022-12-12 18:29:57,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 18:29:57,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 18:29:57,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 18:29:57,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 18:29:57,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,788 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 18:29:57,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 18:29:57,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 18:29:57,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 18:29:57,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (1/1) ... [2022-12-12 18:29:57,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 18:29:57,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 18:29:57,828 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) [2022-12-12 18:29:57,858 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 [2022-12-12 18:29:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-12 18:29:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-12 18:29:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 18:29:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 18:29:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 18:29:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 18:29:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 18:29:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 18:29:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 18:29:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 18:29:57,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 18:29:57,874 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 18:29:58,016 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 18:29:58,018 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 18:29:58,115 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 18:29:58,144 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 18:29:58,144 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 18:29:58,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:29:58 BoogieIcfgContainer [2022-12-12 18:29:58,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 18:29:58,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 18:29:58,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 18:29:58,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 18:29:58,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 06:29:57" (1/3) ... [2022-12-12 18:29:58,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c45b187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:29:58, skipping insertion in model container [2022-12-12 18:29:58,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 06:29:57" (2/3) ... [2022-12-12 18:29:58,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c45b187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 06:29:58, skipping insertion in model container [2022-12-12 18:29:58,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 06:29:58" (3/3) ... [2022-12-12 18:29:58,156 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2022-12-12 18:29:58,169 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 18:29:58,169 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 18:29:58,170 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 18:29:58,207 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 18:29:58,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions, 107 flow [2022-12-12 18:29:58,255 INFO L130 PetriNetUnfolder]: 1/50 cut-off events. [2022-12-12 18:29:58,255 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:29:58,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-12-12 18:29:58,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 51 transitions, 107 flow [2022-12-12 18:29:58,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 37 transitions, 77 flow [2022-12-12 18:29:58,261 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 18:29:58,273 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 37 transitions, 77 flow [2022-12-12 18:29:58,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 37 transitions, 77 flow [2022-12-12 18:29:58,288 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-12-12 18:29:58,288 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:29:58,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 37 events. 0/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-12 18:29:58,295 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 37 transitions, 77 flow [2022-12-12 18:29:58,295 INFO L226 LiptonReduction]: Number of co-enabled transitions 156 [2022-12-12 18:29:59,902 INFO L241 LiptonReduction]: Total number of compositions: 31 [2022-12-12 18:29:59,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 18:29:59,917 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;@63c21074, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 18:29:59,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-12 18:29:59,920 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-12 18:29:59,920 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:29:59,920 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:29:59,920 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-12 18:29:59,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 18:29:59,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:29:59,924 INFO L85 PathProgramCache]: Analyzing trace with hash 225038601, now seen corresponding path program 1 times [2022-12-12 18:29:59,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:29:59,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211598037] [2022-12-12 18:29:59,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:29:59,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:30:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:30:00,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:30:00,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:30:00,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211598037] [2022-12-12 18:30:00,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211598037] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:30:00,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:30:00,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 18:30:00,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476007563] [2022-12-12 18:30:00,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:30:00,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 18:30:00,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:30:00,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 18:30:00,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 18:30:00,146 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 11 [2022-12-12 18:30:00,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 11 transitions, 25 flow. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:30:00,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:30:00,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 11 [2022-12-12 18:30:00,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:30:00,192 INFO L130 PetriNetUnfolder]: 6/34 cut-off events. [2022-12-12 18:30:00,192 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:30:00,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 34 events. 6/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 108 event pairs, 5 based on Foata normal form. 6/28 useless extension candidates. Maximal degree in co-relation 63. Up to 27 conditions per place. [2022-12-12 18:30:00,194 INFO L137 encePairwiseOnDemand]: 5/11 looper letters, 4 selfloop transitions, 5 changer transitions 7/16 dead transitions. [2022-12-12 18:30:00,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 16 transitions, 65 flow [2022-12-12 18:30:00,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 18:30:00,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 18:30:00,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2022-12-12 18:30:00,202 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2022-12-12 18:30:00,206 INFO L295 CegarLoopForPetriNet]: 15 programPoint places, 2 predicate places. [2022-12-12 18:30:00,207 INFO L82 GeneralOperation]: Start removeDead. Operand has 17 places, 16 transitions, 65 flow [2022-12-12 18:30:00,208 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 15 places, 9 transitions, 39 flow [2022-12-12 18:30:00,208 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 9 transitions, 39 flow [2022-12-12 18:30:00,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 18:30:00,209 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 18:30:00,209 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 18:30:00,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 18:30:00,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 18:30:00,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 18:30:00,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1613737009, now seen corresponding path program 1 times [2022-12-12 18:30:00,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 18:30:00,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926016549] [2022-12-12 18:30:00,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 18:30:00,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 18:30:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 18:30:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 18:30:00,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 18:30:00,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926016549] [2022-12-12 18:30:00,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926016549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 18:30:00,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 18:30:00,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 18:30:00,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41186158] [2022-12-12 18:30:00,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 18:30:00,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 18:30:00,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 18:30:00,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 18:30:00,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 18:30:00,366 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 11 [2022-12-12 18:30:00,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 9 transitions, 39 flow. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-12 18:30:00,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 18:30:00,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 11 [2022-12-12 18:30:00,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 18:30:00,375 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-12 18:30:00,375 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 18:30:00,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 4 events. 0/4 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/5 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-12-12 18:30:00,376 INFO L137 encePairwiseOnDemand]: 5/11 looper letters, 0 selfloop transitions, 0 changer transitions 4/4 dead transitions. [2022-12-12 18:30:00,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 4 transitions, 27 flow [2022-12-12 18:30:00,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 18:30:00,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 18:30:00,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-12-12 18:30:00,377 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.2727272727272727 [2022-12-12 18:30:00,377 INFO L295 CegarLoopForPetriNet]: 15 programPoint places, -2 predicate places. [2022-12-12 18:30:00,377 INFO L82 GeneralOperation]: Start removeDead. Operand has 13 places, 4 transitions, 27 flow [2022-12-12 18:30:00,378 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 18:30:00,378 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 18:30:00,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-12 18:30:00,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-12 18:30:00,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-12 18:30:00,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 18:30:00,381 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-12 18:30:00,385 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 18:30:00,385 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 18:30:00,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 06:30:00 BasicIcfg [2022-12-12 18:30:00,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 18:30:00,391 INFO L158 Benchmark]: Toolchain (without parser) took 3037.39ms. Allocated memory was 215.0MB in the beginning and 271.6MB in the end (delta: 56.6MB). Free memory was 189.4MB in the beginning and 107.1MB in the end (delta: 82.3MB). Peak memory consumption was 139.6MB. Max. memory is 8.0GB. [2022-12-12 18:30:00,391 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 215.0MB. Free memory is still 190.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 18:30:00,393 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.68ms. Allocated memory is still 215.0MB. Free memory was 189.4MB in the beginning and 167.5MB in the end (delta: 21.9MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-12 18:30:00,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.80ms. Allocated memory is still 215.0MB. Free memory was 167.5MB in the beginning and 165.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 18:30:00,395 INFO L158 Benchmark]: Boogie Preprocessor took 27.63ms. Allocated memory is still 215.0MB. Free memory was 165.4MB in the beginning and 164.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 18:30:00,395 INFO L158 Benchmark]: RCFGBuilder took 355.28ms. Allocated memory is still 215.0MB. Free memory was 164.4MB in the beginning and 149.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-12 18:30:00,395 INFO L158 Benchmark]: TraceAbstraction took 2240.99ms. Allocated memory was 215.0MB in the beginning and 271.6MB in the end (delta: 56.6MB). Free memory was 148.1MB in the beginning and 107.1MB in the end (delta: 41.1MB). Peak memory consumption was 98.7MB. Max. memory is 8.0GB. [2022-12-12 18:30:00,399 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 215.0MB. Free memory is still 190.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 361.68ms. Allocated memory is still 215.0MB. Free memory was 189.4MB in the beginning and 167.5MB in the end (delta: 21.9MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.80ms. Allocated memory is still 215.0MB. Free memory was 167.5MB in the beginning and 165.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.63ms. Allocated memory is still 215.0MB. Free memory was 165.4MB in the beginning and 164.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 355.28ms. Allocated memory is still 215.0MB. Free memory was 164.4MB in the beginning and 149.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2240.99ms. Allocated memory was 215.0MB in the beginning and 271.6MB in the end (delta: 56.6MB). Free memory was 148.1MB in the beginning and 107.1MB in the end (delta: 41.1MB). Peak memory consumption was 98.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 41 PlacesBefore, 15 PlacesAfterwards, 37 TransitionsBefore, 11 TransitionsAfterwards, 156 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 15 ConcurrentYvCompositions, 0 ChoiceCompositions, 31 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 160, independent: 146, independent conditional: 146, independent unconditional: 0, dependent: 14, dependent conditional: 14, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 160, independent: 146, independent conditional: 0, independent unconditional: 146, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 160, independent: 146, independent conditional: 0, independent unconditional: 146, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 160, independent: 146, independent conditional: 0, independent unconditional: 146, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 119, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 119, independent: 103, independent conditional: 0, independent unconditional: 103, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 160, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 119, unknown conditional: 0, unknown unconditional: 119] , Statistics on independence cache: Total cache size (in pairs): 253, Positive cache size: 240, Positive conditional cache size: 0, Positive unconditional cache size: 240, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 738]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 59 locations, 2 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: 2.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 53 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-12 18:30:00,415 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...