./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 09:01:21,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:01:21,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:01:21,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:01:21,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:01:21,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:01:21,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:01:21,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:01:21,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:01:21,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:01:21,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:01:21,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:01:21,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:01:21,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:01:21,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:01:21,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:01:21,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:01:21,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:01:21,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:01:21,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:01:21,359 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:01:21,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:01:21,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:01:21,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:01:21,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:01:21,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:01:21,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:01:21,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:01:21,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:01:21,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:01:21,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:01:21,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:01:21,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:01:21,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:01:21,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:01:21,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:01:21,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:01:21,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:01:21,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:01:21,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:01:21,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:01:21,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:01:21,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 09:01:21,425 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:01:21,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:01:21,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:01:21,426 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:01:21,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:01:21,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:01:21,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:01:21,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:01:21,428 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:01:21,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:01:21,429 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 09:01:21,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:01:21,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 09:01:21,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:01:21,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:01:21,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:01:21,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:01:21,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 09:01:21,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:01:21,431 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:01:21,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:01:21,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:01:21,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:01:21,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:01:21,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:01:21,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:01:21,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:01:21,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:01:21,433 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:01:21,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:01:21,434 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:01:21,434 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:01:21,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:01:21,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e [2022-07-21 09:01:21,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:01:21,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:01:21,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:01:21,780 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:01:21,781 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:01:21,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2022-07-21 09:01:21,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5700d3769/d58d6dbcf9dd4a2e876f0c401550fb26/FLAG0073d68ce [2022-07-21 09:01:22,300 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:01:22,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2022-07-21 09:01:22,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5700d3769/d58d6dbcf9dd4a2e876f0c401550fb26/FLAG0073d68ce [2022-07-21 09:01:22,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5700d3769/d58d6dbcf9dd4a2e876f0c401550fb26 [2022-07-21 09:01:22,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:01:22,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:01:22,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:01:22,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:01:22,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:01:22,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:22,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a16ad7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22, skipping insertion in model container [2022-07-21 09:01:22,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:22,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:01:22,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:01:22,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-07-21 09:01:22,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:01:22,911 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:01:22,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-07-21 09:01:22,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:01:22,990 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:01:22,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22 WrapperNode [2022-07-21 09:01:22,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:01:22,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:01:22,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:01:22,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:01:22,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:23,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:23,042 INFO L137 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 119 [2022-07-21 09:01:23,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:01:23,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:01:23,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:01:23,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:01:23,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:23,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:23,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:23,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:23,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:23,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:23,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:23,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:01:23,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:01:23,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:01:23,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:01:23,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22" (1/1) ... [2022-07-21 09:01:23,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:01:23,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:01:23,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 09:01:23,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 09:01:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:01:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-21 09:01:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-21 09:01:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-21 09:01:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-21 09:01:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:01:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:01:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:01:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-21 09:01:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-21 09:01:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:01:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:01:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:01:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:01:23,169 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 09:01:23,261 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:01:23,263 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:01:23,484 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:01:23,556 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:01:23,558 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 09:01:23,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:01:23 BoogieIcfgContainer [2022-07-21 09:01:23,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:01:23,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:01:23,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:01:23,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:01:23,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:01:22" (1/3) ... [2022-07-21 09:01:23,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318750af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:01:23, skipping insertion in model container [2022-07-21 09:01:23,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:01:22" (2/3) ... [2022-07-21 09:01:23,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318750af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:01:23, skipping insertion in model container [2022-07-21 09:01:23,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:01:23" (3/3) ... [2022-07-21 09:01:23,569 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2022-07-21 09:01:23,574 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 09:01:23,583 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:01:23,583 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:01:23,583 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 09:01:23,647 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-21 09:01:23,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 139 transitions, 294 flow [2022-07-21 09:01:23,732 INFO L129 PetriNetUnfolder]: 9/137 cut-off events. [2022-07-21 09:01:23,733 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-21 09:01:23,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 137 events. 9/137 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2022-07-21 09:01:23,736 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 139 transitions, 294 flow [2022-07-21 09:01:23,740 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 128 transitions, 268 flow [2022-07-21 09:01:23,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:01:23,755 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6651c880, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f501acb [2022-07-21 09:01:23,755 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 09:01:23,794 INFO L129 PetriNetUnfolder]: 9/127 cut-off events. [2022-07-21 09:01:23,794 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-21 09:01:23,794 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:01:23,803 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:01:23,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-21 09:01:23,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:01:23,812 INFO L85 PathProgramCache]: Analyzing trace with hash -832133839, now seen corresponding path program 1 times [2022-07-21 09:01:23,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:01:23,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563495345] [2022-07-21 09:01:23,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:01:23,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:01:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:01:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:01:24,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:01:24,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563495345] [2022-07-21 09:01:24,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563495345] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:01:24,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:01:24,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 09:01:24,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772390551] [2022-07-21 09:01:24,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:01:24,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 09:01:24,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:01:24,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 09:01:24,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 09:01:24,330 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 139 [2022-07-21 09:01:24,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 128 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:24,336 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:01:24,336 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 139 [2022-07-21 09:01:24,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:01:24,571 INFO L129 PetriNetUnfolder]: 29/235 cut-off events. [2022-07-21 09:01:24,571 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-07-21 09:01:24,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 235 events. 29/235 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 590 event pairs, 4 based on Foata normal form. 8/221 useless extension candidates. Maximal degree in co-relation 179. Up to 38 conditions per place. [2022-07-21 09:01:24,575 INFO L132 encePairwiseOnDemand]: 120/139 looper letters, 43 selfloop transitions, 1 changer transitions 18/134 dead transitions. [2022-07-21 09:01:24,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 134 transitions, 413 flow [2022-07-21 09:01:24,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:01:24,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-21 09:01:24,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 727 transitions. [2022-07-21 09:01:24,600 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6537769784172662 [2022-07-21 09:01:24,601 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 727 transitions. [2022-07-21 09:01:24,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 727 transitions. [2022-07-21 09:01:24,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:01:24,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 727 transitions. [2022-07-21 09:01:24,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 90.875) internal successors, (727), 8 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:24,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 139.0) internal successors, (1251), 9 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:24,624 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 139.0) internal successors, (1251), 9 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:24,626 INFO L186 Difference]: Start difference. First operand has 126 places, 128 transitions, 268 flow. Second operand 8 states and 727 transitions. [2022-07-21 09:01:24,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 134 transitions, 413 flow [2022-07-21 09:01:24,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 134 transitions, 399 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-21 09:01:24,638 INFO L242 Difference]: Finished difference. Result has 133 places, 114 transitions, 243 flow [2022-07-21 09:01:24,640 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=243, PETRI_PLACES=133, PETRI_TRANSITIONS=114} [2022-07-21 09:01:24,646 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 7 predicate places. [2022-07-21 09:01:24,646 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 114 transitions, 243 flow [2022-07-21 09:01:24,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:24,648 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:01:24,648 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:01:24,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 09:01:24,648 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-21 09:01:24,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:01:24,650 INFO L85 PathProgramCache]: Analyzing trace with hash 2030228587, now seen corresponding path program 2 times [2022-07-21 09:01:24,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:01:24,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494718841] [2022-07-21 09:01:24,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:01:24,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:01:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:01:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:01:24,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:01:24,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494718841] [2022-07-21 09:01:24,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494718841] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:01:24,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:01:24,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 09:01:24,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144642016] [2022-07-21 09:01:24,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:01:24,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:01:24,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:01:24,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:01:24,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:01:24,821 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 139 [2022-07-21 09:01:24,822 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 114 transitions, 243 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:24,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:01:24,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 139 [2022-07-21 09:01:24,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:01:24,966 INFO L129 PetriNetUnfolder]: 22/206 cut-off events. [2022-07-21 09:01:24,966 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-07-21 09:01:24,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 206 events. 22/206 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 499 event pairs, 6 based on Foata normal form. 4/198 useless extension candidates. Maximal degree in co-relation 298. Up to 52 conditions per place. [2022-07-21 09:01:24,970 INFO L132 encePairwiseOnDemand]: 131/139 looper letters, 41 selfloop transitions, 7 changer transitions 0/121 dead transitions. [2022-07-21 09:01:24,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 121 transitions, 355 flow [2022-07-21 09:01:24,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:01:24,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-21 09:01:24,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 464 transitions. [2022-07-21 09:01:24,973 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6676258992805756 [2022-07-21 09:01:24,973 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 464 transitions. [2022-07-21 09:01:24,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 464 transitions. [2022-07-21 09:01:24,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:01:24,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 464 transitions. [2022-07-21 09:01:24,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:24,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:24,979 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:24,979 INFO L186 Difference]: Start difference. First operand has 133 places, 114 transitions, 243 flow. Second operand 5 states and 464 transitions. [2022-07-21 09:01:24,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 121 transitions, 355 flow [2022-07-21 09:01:24,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 121 transitions, 348 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-07-21 09:01:24,986 INFO L242 Difference]: Finished difference. Result has 122 places, 116 transitions, 265 flow [2022-07-21 09:01:24,987 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=265, PETRI_PLACES=122, PETRI_TRANSITIONS=116} [2022-07-21 09:01:24,987 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, -4 predicate places. [2022-07-21 09:01:24,988 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 116 transitions, 265 flow [2022-07-21 09:01:24,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:24,989 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:01:24,989 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:01:24,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 09:01:24,990 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-21 09:01:24,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:01:24,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1429576370, now seen corresponding path program 1 times [2022-07-21 09:01:24,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:01:24,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913503327] [2022-07-21 09:01:24,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:01:24,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:01:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:01:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:01:25,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:01:25,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913503327] [2022-07-21 09:01:25,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913503327] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:01:25,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:01:25,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 09:01:25,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4038767] [2022-07-21 09:01:25,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:01:25,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 09:01:25,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:01:25,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 09:01:25,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-21 09:01:25,374 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 139 [2022-07-21 09:01:25,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 116 transitions, 265 flow. Second operand has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:25,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:01:25,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 139 [2022-07-21 09:01:25,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:01:25,635 INFO L129 PetriNetUnfolder]: 38/270 cut-off events. [2022-07-21 09:01:25,635 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-07-21 09:01:25,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 270 events. 38/270 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 908 event pairs, 4 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 209. Up to 42 conditions per place. [2022-07-21 09:01:25,639 INFO L132 encePairwiseOnDemand]: 123/139 looper letters, 52 selfloop transitions, 18 changer transitions 1/141 dead transitions. [2022-07-21 09:01:25,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 141 transitions, 471 flow [2022-07-21 09:01:25,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 09:01:25,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-21 09:01:25,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1086 transitions. [2022-07-21 09:01:25,643 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6009961261759823 [2022-07-21 09:01:25,644 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1086 transitions. [2022-07-21 09:01:25,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1086 transitions. [2022-07-21 09:01:25,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:01:25,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1086 transitions. [2022-07-21 09:01:25,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 83.53846153846153) internal successors, (1086), 13 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:25,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:25,653 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:25,653 INFO L186 Difference]: Start difference. First operand has 122 places, 116 transitions, 265 flow. Second operand 13 states and 1086 transitions. [2022-07-21 09:01:25,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 141 transitions, 471 flow [2022-07-21 09:01:25,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 141 transitions, 462 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-07-21 09:01:25,661 INFO L242 Difference]: Finished difference. Result has 134 places, 121 transitions, 314 flow [2022-07-21 09:01:25,661 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=314, PETRI_PLACES=134, PETRI_TRANSITIONS=121} [2022-07-21 09:01:25,663 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 8 predicate places. [2022-07-21 09:01:25,664 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 121 transitions, 314 flow [2022-07-21 09:01:25,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:25,664 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 09:01:25,665 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:01:25,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 09:01:25,665 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-21 09:01:25,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:01:25,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1225799267, now seen corresponding path program 1 times [2022-07-21 09:01:25,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:01:25,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287001715] [2022-07-21 09:01:25,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:01:25,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:01:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:01:25,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:01:25,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:01:25,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287001715] [2022-07-21 09:01:25,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287001715] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:01:25,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:01:25,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:01:25,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328216727] [2022-07-21 09:01:25,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:01:25,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:01:25,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:01:25,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:01:25,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:01:25,922 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 139 [2022-07-21 09:01:25,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 121 transitions, 314 flow. Second operand has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:25,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 09:01:25,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 139 [2022-07-21 09:01:25,924 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 09:01:26,060 INFO L129 PetriNetUnfolder]: 20/203 cut-off events. [2022-07-21 09:01:26,061 INFO L130 PetriNetUnfolder]: For 40/45 co-relation queries the response was YES. [2022-07-21 09:01:26,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 203 events. 20/203 cut-off events. For 40/45 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 498 event pairs, 7 based on Foata normal form. 2/194 useless extension candidates. Maximal degree in co-relation 245. Up to 37 conditions per place. [2022-07-21 09:01:26,062 INFO L132 encePairwiseOnDemand]: 129/139 looper letters, 0 selfloop transitions, 0 changer transitions 121/121 dead transitions. [2022-07-21 09:01:26,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 121 transitions, 415 flow [2022-07-21 09:01:26,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 09:01:26,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-21 09:01:26,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 783 transitions. [2022-07-21 09:01:26,065 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6258992805755396 [2022-07-21 09:01:26,065 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 783 transitions. [2022-07-21 09:01:26,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 783 transitions. [2022-07-21 09:01:26,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 09:01:26,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 783 transitions. [2022-07-21 09:01:26,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.0) internal successors, (783), 9 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:26,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:26,076 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:26,077 INFO L186 Difference]: Start difference. First operand has 134 places, 121 transitions, 314 flow. Second operand 9 states and 783 transitions. [2022-07-21 09:01:26,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 121 transitions, 415 flow [2022-07-21 09:01:26,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 121 transitions, 398 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-07-21 09:01:26,082 INFO L242 Difference]: Finished difference. Result has 132 places, 0 transitions, 0 flow [2022-07-21 09:01:26,082 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=132, PETRI_TRANSITIONS=0} [2022-07-21 09:01:26,084 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 6 predicate places. [2022-07-21 09:01:26,084 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 0 transitions, 0 flow [2022-07-21 09:01:26,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.25) internal successors, (698), 8 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 09:01:26,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-07-21 09:01:26,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-07-21 09:01:26,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-07-21 09:01:26,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 09:01:26,095 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-07-21 09:01:26,098 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-21 09:01:26,099 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 09:01:26,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 09:01:26 BasicIcfg [2022-07-21 09:01:26,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 09:01:26,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 09:01:26,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 09:01:26,107 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 09:01:26,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:01:23" (3/4) ... [2022-07-21 09:01:26,110 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 09:01:26,115 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-07-21 09:01:26,115 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-07-21 09:01:26,121 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-21 09:01:26,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-21 09:01:26,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 09:01:26,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 09:01:26,173 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 09:01:26,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 09:01:26,174 INFO L158 Benchmark]: Toolchain (without parser) took 3468.18ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 53.0MB in the beginning and 43.3MB in the end (delta: 9.6MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-07-21 09:01:26,175 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 71.3MB. Free memory was 51.6MB in the beginning and 51.6MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:01:26,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.73ms. Allocated memory is still 71.3MB. Free memory was 52.7MB in the beginning and 53.9MB in the end (delta: -1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 09:01:26,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.41ms. Allocated memory is still 71.3MB. Free memory was 53.9MB in the beginning and 52.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 09:01:26,176 INFO L158 Benchmark]: Boogie Preprocessor took 45.11ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 50.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 09:01:26,177 INFO L158 Benchmark]: RCFGBuilder took 472.99ms. Allocated memory is still 71.3MB. Free memory was 50.6MB in the beginning and 35.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-21 09:01:26,177 INFO L158 Benchmark]: TraceAbstraction took 2540.78ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 34.8MB in the beginning and 46.3MB in the end (delta: -11.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-07-21 09:01:26,178 INFO L158 Benchmark]: Witness Printer took 66.05ms. Allocated memory is still 88.1MB. Free memory was 46.3MB in the beginning and 43.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 09:01:26,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 71.3MB. Free memory was 51.6MB in the beginning and 51.6MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.73ms. Allocated memory is still 71.3MB. Free memory was 52.7MB in the beginning and 53.9MB in the end (delta: -1.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.41ms. Allocated memory is still 71.3MB. Free memory was 53.9MB in the beginning and 52.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.11ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 50.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 472.99ms. Allocated memory is still 71.3MB. Free memory was 50.6MB in the beginning and 35.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2540.78ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 34.8MB in the beginning and 46.3MB in the end (delta: -11.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Witness Printer took 66.05ms. Allocated memory is still 88.1MB. Free memory was 46.3MB in the beginning and 43.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 115]: 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, 152 locations, 3 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: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 256 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 256 mSDsluCounter, 366 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 357 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 417 IncrementalHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 130 mSDtfsCounter, 417 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=3, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 442 NumberOfCodeBlocks, 442 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 438 ConstructedInterpolants, 0 QuantifiedInterpolants, 1725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2022-07-21 09:01:26,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE