./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl/time-symm.wvr.c --full-output -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8c2bbc92 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl/time-symm.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e40189dbbea7a7990e10636914cc076a6011d346 -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf .................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-05 22:27:57,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-05 22:27:57,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-05 22:27:57,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-05 22:27:57,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-05 22:27:57,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-05 22:27:57,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-05 22:27:57,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-05 22:27:57,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-05 22:27:57,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-05 22:27:57,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-05 22:27:57,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-05 22:27:57,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-05 22:27:57,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-05 22:27:57,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-05 22:27:57,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-05 22:27:57,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-05 22:27:57,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-05 22:27:57,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-05 22:27:57,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-05 22:27:57,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-05 22:27:57,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-05 22:27:57,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-05 22:27:57,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-05 22:27:57,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-05 22:27:57,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-05 22:27:57,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-05 22:27:57,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-05 22:27:57,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-05 22:27:57,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-05 22:27:57,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-05 22:27:57,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-05 22:27:57,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-05 22:27:57,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-05 22:27:57,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-05 22:27:57,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-05 22:27:57,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-05 22:27:57,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-05 22:27:57,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-05 22:27:57,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-05 22:27:57,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-05 22:27:57,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-05 22:27:57,851 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-05 22:27:57,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-05 22:27:57,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-05 22:27:57,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-05 22:27:57,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-05 22:27:57,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-05 22:27:57,857 INFO L138 SettingsManager]: * Use SBE=true [2021-10-05 22:27:57,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-05 22:27:57,857 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-05 22:27:57,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-05 22:27:57,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-05 22:27:57,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-05 22:27:57,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-05 22:27:57,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-05 22:27:57,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-05 22:27:57,860 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-05 22:27:57,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-05 22:27:57,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-05 22:27:57,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-05 22:27:57,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-05 22:27:57,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-05 22:27:57,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-05 22:27:57,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:27:57,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-05 22:27:57,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-05 22:27:57,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-05 22:27:57,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-05 22:27:57,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-05 22:27:57,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-05 22:27:57,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-05 22:27:57,864 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-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e40189dbbea7a7990e10636914cc076a6011d346 [2021-10-05 22:27:58,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-05 22:27:58,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-05 22:27:58,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-05 22:27:58,311 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-05 22:27:58,312 INFO L275 PluginConnector]: CDTParser initialized [2021-10-05 22:27:58,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/time-symm.wvr.c [2021-10-05 22:27:58,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbad8c24e/c37c6692dd02470990ac09787adb521b/FLAG849e6dde4 [2021-10-05 22:27:58,989 INFO L306 CDTParser]: Found 1 translation units. [2021-10-05 22:27:58,990 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/time-symm.wvr.c [2021-10-05 22:27:59,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbad8c24e/c37c6692dd02470990ac09787adb521b/FLAG849e6dde4 [2021-10-05 22:27:59,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bbad8c24e/c37c6692dd02470990ac09787adb521b [2021-10-05 22:27:59,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-05 22:27:59,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-05 22:27:59,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-05 22:27:59,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-05 22:27:59,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-05 22:27:59,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@649366a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59, skipping insertion in model container [2021-10-05 22:27:59,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-05 22:27:59,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-05 22:27:59,674 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/time-symm.wvr.c[2412,2425] [2021-10-05 22:27:59,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:27:59,705 INFO L203 MainTranslator]: Completed pre-run [2021-10-05 22:27:59,731 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/time-symm.wvr.c[2412,2425] [2021-10-05 22:27:59,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:27:59,751 INFO L208 MainTranslator]: Completed translation [2021-10-05 22:27:59,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59 WrapperNode [2021-10-05 22:27:59,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-05 22:27:59,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-05 22:27:59,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-05 22:27:59,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-05 22:27:59,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-05 22:27:59,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-05 22:27:59,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-05 22:27:59,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-05 22:27:59,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-05 22:27:59,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-05 22:27:59,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-05 22:27:59,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-05 22:27:59,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59" (1/1) ... [2021-10-05 22:27:59,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:27:59,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:27:59,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-05 22:27:59,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-05 22:27:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-05 22:27:59,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-05 22:27:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-05 22:27:59,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-05 22:27:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-05 22:27:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-05 22:27:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-05 22:27:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-05 22:27:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-05 22:27:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-05 22:27:59,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-05 22:27:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-05 22:27:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-05 22:27:59,976 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-05 22:28:00,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-05 22:28:00,480 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-05 22:28:00,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:28:00 BoogieIcfgContainer [2021-10-05 22:28:00,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-05 22:28:00,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-05 22:28:00,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-05 22:28:00,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-05 22:28:00,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:27:59" (1/3) ... [2021-10-05 22:28:00,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5ea072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:28:00, skipping insertion in model container [2021-10-05 22:28:00,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:59" (2/3) ... [2021-10-05 22:28:00,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f5ea072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:28:00, skipping insertion in model container [2021-10-05 22:28:00,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:28:00" (3/3) ... [2021-10-05 22:28:00,493 INFO L111 eAbstractionObserver]: Analyzing ICFG time-symm.wvr.c [2021-10-05 22:28:00,499 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-05 22:28:00,500 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-05 22:28:00,500 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-05 22:28:00,500 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-05 22:28:00,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:28:00,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:28:00,531 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:28:00,532 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:28:00,535 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:28:00,536 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:28:00,536 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:28:00,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:28:00,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:28:00,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:28:00,552 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-05 22:28:00,606 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-05 22:28:00,614 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-05 22:28:00,614 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-05 22:28:00,631 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-05 22:28:00,644 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 91 transitions, 198 flow [2021-10-05 22:28:00,648 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 91 transitions, 198 flow [2021-10-05 22:28:00,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 91 transitions, 198 flow [2021-10-05 22:28:00,706 INFO L129 PetriNetUnfolder]: 5/89 cut-off events. [2021-10-05 22:28:00,706 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-05 22:28:00,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 89 events. 5/89 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2021-10-05 22:28:00,712 INFO L116 LiptonReduction]: Number of co-enabled transitions 68 [2021-10-05 22:28:05,806 INFO L131 LiptonReduction]: Checked pairs total: 143 [2021-10-05 22:28:05,806 INFO L133 LiptonReduction]: Total number of compositions: 89 [2021-10-05 22:28:05,817 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 14 transitions, 44 flow [2021-10-05 22:28:05,831 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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) [2021-10-05 22:28:05,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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) [2021-10-05 22:28:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-05 22:28:05,842 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:28:05,843 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:28:05,844 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:28:05,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:28:05,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1037237158, now seen corresponding path program 1 times [2021-10-05 22:28:05,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:28:05,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816700627] [2021-10-05 22:28:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:28:05,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:28:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:28:06,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-05 22:28:06,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:28:06,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816700627] [2021-10-05 22:28:06,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816700627] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:28:06,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:28:06,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 22:28:06,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221729743] [2021-10-05 22:28:06,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 22:28:06,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:28:06,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 22:28:06,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-05 22:28:06,422 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-05 22:28:06,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:28:06,490 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-10-05 22:28:06,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-05 22:28:06,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-05 22:28:06,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:28:06,502 INFO L225 Difference]: With dead ends: 25 [2021-10-05 22:28:06,502 INFO L226 Difference]: Without dead ends: 14 [2021-10-05 22:28:06,504 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:28:06,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-05 22:28:06,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-05 22:28:06,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-05 22:28:06,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-10-05 22:28:06,542 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2021-10-05 22:28:06,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:28:06,543 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-10-05 22:28:06,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-05 22:28:06,544 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-10-05 22:28:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-05 22:28:06,544 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:28:06,545 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:28:06,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-05 22:28:06,545 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:28:06,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:28:06,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1480524396, now seen corresponding path program 2 times [2021-10-05 22:28:06,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:28:06,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962320188] [2021-10-05 22:28:06,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:28:06,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:28:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:28:06,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-05 22:28:06,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:28:06,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962320188] [2021-10-05 22:28:06,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962320188] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:28:06,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:28:06,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 22:28:06,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093813504] [2021-10-05 22:28:06,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 22:28:06,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:28:06,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 22:28:06,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-05 22:28:06,746 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-05 22:28:06,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:28:06,780 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2021-10-05 22:28:06,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-05 22:28:06,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-05 22:28:06,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:28:06,781 INFO L225 Difference]: With dead ends: 13 [2021-10-05 22:28:06,782 INFO L226 Difference]: Without dead ends: 0 [2021-10-05 22:28:06,783 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:28:06,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-05 22:28:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-05 22:28:06,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-05 22:28:06,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-05 22:28:06,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-05 22:28:06,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:28:06,785 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-05 22:28:06,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-05 22:28:06,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-05 22:28:06,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-05 22:28:06,789 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-05 22:28:06,790 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-05 22:28:06,790 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-05 22:28:06,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-05 22:28:06,796 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-05 22:28:06,796 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-05 22:28:06,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:28:06 BasicIcfg [2021-10-05 22:28:06,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-05 22:28:06,800 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-05 22:28:06,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-05 22:28:06,801 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-05 22:28:06,801 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:28:00" (3/4) ... [2021-10-05 22:28:06,806 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-05 22:28:06,814 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-05 22:28:06,814 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-05 22:28:06,821 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-05 22:28:06,821 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-05 22:28:06,822 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-05 22:28:06,822 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-05 22:28:06,877 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-05 22:28:06,878 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-05 22:28:06,883 INFO L168 Benchmark]: Toolchain (without parser) took 7515.63 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.2 MB in the beginning and 40.2 MB in the end (delta: -9.0 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2021-10-05 22:28:06,884 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 54.5 MB. Free memory is still 36.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:28:06,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.28 ms. Allocated memory is still 54.5 MB. Free memory was 30.9 MB in the beginning and 37.9 MB in the end (delta: -7.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-10-05 22:28:06,885 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.66 ms. Allocated memory is still 54.5 MB. Free memory was 37.9 MB in the beginning and 36.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:28:06,886 INFO L168 Benchmark]: Boogie Preprocessor took 31.89 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 35.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-05 22:28:06,888 INFO L168 Benchmark]: RCFGBuilder took 648.68 ms. Allocated memory is still 54.5 MB. Free memory was 35.0 MB in the beginning and 36.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-10-05 22:28:06,889 INFO L168 Benchmark]: TraceAbstraction took 6314.65 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 35.6 MB in the beginning and 43.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2021-10-05 22:28:06,891 INFO L168 Benchmark]: Witness Printer took 77.82 ms. Allocated memory is still 67.1 MB. Free memory was 43.3 MB in the beginning and 40.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 22:28:06,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 54.5 MB. Free memory is still 36.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 380.28 ms. Allocated memory is still 54.5 MB. Free memory was 30.9 MB in the beginning and 37.9 MB in the end (delta: -7.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.66 ms. Allocated memory is still 54.5 MB. Free memory was 37.9 MB in the beginning and 36.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.89 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 35.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 648.68 ms. Allocated memory is still 54.5 MB. Free memory was 35.0 MB in the beginning and 36.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6314.65 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 35.6 MB in the beginning and 43.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Witness Printer took 77.82 ms. Allocated memory is still 67.1 MB. Free memory was 43.3 MB in the beginning and 40.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5158.8ms, 93 PlacesBefore, 21 PlacesAfterwards, 91 TransitionsBefore, 14 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 7 FixpointIterations, 68 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 0 ConcurrentYvCompositions, 5 ChoiceCompositions, 89 TotalNumberOfCompositions, 143 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 143, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 143, positive: 89, positive conditional: 0, positive unconditional: 89, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 54, unknown conditional: 0, unknown unconditional: 54] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 75]: 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 5 procedures, 95 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6191.3ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.6ms, AutomataDifference: 138.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5217.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 12 SDslu, 23 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 107.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 20.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.2ms SsaConstructionTime, 178.4ms SatisfiabilityAnalysisTime, 430.1ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 379 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! [2021-10-05 22:28:06,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...