./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl/simpl-str-trans.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/simpl-str-trans.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 edeb3d13c1d0e4bbe2a635e766fcdc59ef565bd1 -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 22:27:38,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-05 22:27:38,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-05 22:27:38,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-05 22:27:38,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-05 22:27:38,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-05 22:27:38,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-05 22:27:38,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-05 22:27:38,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-05 22:27:38,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-05 22:27:38,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-05 22:27:38,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-05 22:27:38,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-05 22:27:38,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-05 22:27:38,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-05 22:27:38,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-05 22:27:38,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-05 22:27:38,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-05 22:27:38,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-05 22:27:38,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-05 22:27:38,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-05 22:27:38,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-05 22:27:38,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-05 22:27:38,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-05 22:27:38,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-05 22:27:38,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-05 22:27:38,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-05 22:27:38,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-05 22:27:38,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-05 22:27:38,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-05 22:27:38,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-05 22:27:38,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-05 22:27:38,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-05 22:27:38,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-05 22:27:38,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-05 22:27:38,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-05 22:27:38,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-05 22:27:38,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-05 22:27:38,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-05 22:27:38,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-05 22:27:38,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-05 22:27:38,507 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 22:27:38,561 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-05 22:27:38,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-05 22:27:38,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-05 22:27:38,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-05 22:27:38,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-05 22:27:38,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-05 22:27:38,568 INFO L138 SettingsManager]: * Use SBE=true [2021-10-05 22:27:38,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-05 22:27:38,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-05 22:27:38,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-05 22:27:38,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-05 22:27:38,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-05 22:27:38,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-05 22:27:38,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-05 22:27:38,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-05 22:27:38,571 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-05 22:27:38,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-05 22:27:38,572 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-05 22:27:38,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-05 22:27:38,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-05 22:27:38,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-05 22:27:38,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-05 22:27:38,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:27:38,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-05 22:27:38,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-05 22:27:38,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-05 22:27:38,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-05 22:27:38,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-05 22:27:38,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-05 22:27:38,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-05 22:27:38,576 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edeb3d13c1d0e4bbe2a635e766fcdc59ef565bd1 [2021-10-05 22:27:38,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-05 22:27:39,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-05 22:27:39,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-05 22:27:39,010 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-05 22:27:39,013 INFO L275 PluginConnector]: CDTParser initialized [2021-10-05 22:27:39,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/simpl-str-trans.wvr.c [2021-10-05 22:27:39,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b89f76fb6/bd3b62745c1b48fe9c35d58b83f6efa3/FLAG740d29ebf [2021-10-05 22:27:39,769 INFO L306 CDTParser]: Found 1 translation units. [2021-10-05 22:27:39,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/simpl-str-trans.wvr.c [2021-10-05 22:27:39,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b89f76fb6/bd3b62745c1b48fe9c35d58b83f6efa3/FLAG740d29ebf [2021-10-05 22:27:40,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b89f76fb6/bd3b62745c1b48fe9c35d58b83f6efa3 [2021-10-05 22:27:40,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-05 22:27:40,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-05 22:27:40,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-05 22:27:40,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-05 22:27:40,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-05 22:27:40,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe5c743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40, skipping insertion in model container [2021-10-05 22:27:40,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-05 22:27:40,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-05 22:27:40,384 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/simpl-str-trans.wvr.c[2414,2427] [2021-10-05 22:27:40,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:27:40,398 INFO L203 MainTranslator]: Completed pre-run [2021-10-05 22:27:40,424 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/simpl-str-trans.wvr.c[2414,2427] [2021-10-05 22:27:40,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:27:40,441 INFO L208 MainTranslator]: Completed translation [2021-10-05 22:27:40,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40 WrapperNode [2021-10-05 22:27:40,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-05 22:27:40,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-05 22:27:40,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-05 22:27:40,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-05 22:27:40,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-05 22:27:40,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-05 22:27:40,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-05 22:27:40,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-05 22:27:40,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-05 22:27:40,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-05 22:27:40,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-05 22:27:40,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-05 22:27:40,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40" (1/1) ... [2021-10-05 22:27:40,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:27:40,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:27:40,593 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 22:27:40,595 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 22:27:40,647 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-05 22:27:40,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-05 22:27:40,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-05 22:27:40,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-05 22:27:40,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-05 22:27:40,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-05 22:27:40,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-05 22:27:40,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-05 22:27:40,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-05 22:27:40,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-05 22:27:40,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-05 22:27:40,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-05 22:27:40,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-05 22:27:40,658 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 22:27:41,111 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-05 22:27:41,112 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-05 22:27:41,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:27:41 BoogieIcfgContainer [2021-10-05 22:27:41,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-05 22:27:41,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-05 22:27:41,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-05 22:27:41,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-05 22:27:41,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:27:40" (1/3) ... [2021-10-05 22:27:41,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1375bdfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:27:41, skipping insertion in model container [2021-10-05 22:27:41,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:27:40" (2/3) ... [2021-10-05 22:27:41,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1375bdfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:27:41, skipping insertion in model container [2021-10-05 22:27:41,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:27:41" (3/3) ... [2021-10-05 22:27:41,127 INFO L111 eAbstractionObserver]: Analyzing ICFG simpl-str-trans.wvr.c [2021-10-05 22:27:41,135 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-05 22:27:41,135 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-05 22:27:41,136 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-05 22:27:41,136 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-05 22:27:41,213 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,215 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,216 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,216 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,216 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,217 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,217 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,217 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,218 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,218 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,218 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,219 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,219 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,220 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,220 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,221 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,221 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,221 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,223 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,223 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,224 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,224 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,224 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,224 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,225 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,226 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,226 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,226 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,227 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,228 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,228 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,228 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,228 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,229 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,229 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,230 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,230 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,230 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,230 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,231 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,232 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,233 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,234 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,234 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,235 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,235 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,235 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,235 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,236 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,237 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,237 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,237 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,238 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,238 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,238 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,238 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,240 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,240 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,241 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,242 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,243 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,243 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,243 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,248 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,248 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,249 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,250 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,250 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,256 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,256 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,256 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,257 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,257 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,262 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,263 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,263 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,263 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,264 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:27:41,286 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-05 22:27:41,356 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-05 22:27:41,376 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 22:27:41,379 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-05 22:27:41,414 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-05 22:27:41,435 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 134 transitions, 292 flow [2021-10-05 22:27:41,439 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 134 transitions, 292 flow [2021-10-05 22:27:41,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 134 transitions, 292 flow [2021-10-05 22:27:41,567 INFO L129 PetriNetUnfolder]: 10/131 cut-off events. [2021-10-05 22:27:41,568 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-05 22:27:41,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 131 events. 10/131 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 157 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2021-10-05 22:27:41,584 INFO L116 LiptonReduction]: Number of co-enabled transitions 2958 [2021-10-05 22:27:47,240 INFO L131 LiptonReduction]: Checked pairs total: 2840 [2021-10-05 22:27:47,240 INFO L133 LiptonReduction]: Total number of compositions: 136 [2021-10-05 22:27:47,250 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 64 flow [2021-10-05 22:27:47,262 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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 22:27:47,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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 22:27:47,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-05 22:27:47,272 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:27:47,273 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:27:47,274 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:27:47,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:27:47,280 INFO L82 PathProgramCache]: Analyzing trace with hash 427848100, now seen corresponding path program 1 times [2021-10-05 22:27:47,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:27:47,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920671080] [2021-10-05 22:27:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:27:47,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:27:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:27:47,819 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 22:27:47,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:27:47,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920671080] [2021-10-05 22:27:47,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920671080] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:27:47,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:27:47,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-05 22:27:47,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879783704] [2021-10-05 22:27:47,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-05 22:27:47,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:27:47,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-05 22:27:47,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:27:47,852 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:48,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:27:48,028 INFO L93 Difference]: Finished difference Result 71 states and 113 transitions. [2021-10-05 22:27:48,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-05 22:27:48,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-05 22:27:48,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:27:48,041 INFO L225 Difference]: With dead ends: 71 [2021-10-05 22:27:48,041 INFO L226 Difference]: Without dead ends: 56 [2021-10-05 22:27:48,043 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 164.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-05 22:27:48,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-05 22:27:48,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 44. [2021-10-05 22:27:48,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 43 states have internal predecessors, (76), 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 22:27:48,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 76 transitions. [2021-10-05 22:27:48,096 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 76 transitions. Word has length 16 [2021-10-05 22:27:48,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:27:48,096 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 76 transitions. [2021-10-05 22:27:48,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:48,097 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 76 transitions. [2021-10-05 22:27:48,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-05 22:27:48,098 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:27:48,099 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:27:48,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-05 22:27:48,099 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:27:48,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:27:48,100 INFO L82 PathProgramCache]: Analyzing trace with hash 2110220980, now seen corresponding path program 2 times [2021-10-05 22:27:48,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:27:48,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350481240] [2021-10-05 22:27:48,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:27:48,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:27:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:27:48,341 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 22:27:48,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:27:48,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350481240] [2021-10-05 22:27:48,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350481240] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:27:48,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:27:48,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-05 22:27:48,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326393954] [2021-10-05 22:27:48,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-05 22:27:48,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:27:48,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-05 22:27:48,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:27:48,346 INFO L87 Difference]: Start difference. First operand 44 states and 76 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:48,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:27:48,457 INFO L93 Difference]: Finished difference Result 61 states and 92 transitions. [2021-10-05 22:27:48,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-05 22:27:48,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-05 22:27:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:27:48,460 INFO L225 Difference]: With dead ends: 61 [2021-10-05 22:27:48,460 INFO L226 Difference]: Without dead ends: 48 [2021-10-05 22:27:48,461 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 109.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-05 22:27:48,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-05 22:27:48,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2021-10-05 22:27:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 39 states have internal predecessors, (67), 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 22:27:48,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 67 transitions. [2021-10-05 22:27:48,468 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 67 transitions. Word has length 16 [2021-10-05 22:27:48,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:27:48,468 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 67 transitions. [2021-10-05 22:27:48,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:48,469 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 67 transitions. [2021-10-05 22:27:48,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-05 22:27:48,470 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:27:48,470 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:27:48,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-05 22:27:48,471 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:27:48,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:27:48,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1652623496, now seen corresponding path program 3 times [2021-10-05 22:27:48,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:27:48,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583360838] [2021-10-05 22:27:48,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:27:48,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:27:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:27:48,675 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 22:27:48,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:27:48,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583360838] [2021-10-05 22:27:48,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583360838] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:27:48,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:27:48,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-05 22:27:48,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795351555] [2021-10-05 22:27:48,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-05 22:27:48,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:27:48,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-05 22:27:48,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:27:48,680 INFO L87 Difference]: Start difference. First operand 40 states and 67 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:48,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:27:48,781 INFO L93 Difference]: Finished difference Result 55 states and 80 transitions. [2021-10-05 22:27:48,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-05 22:27:48,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-05 22:27:48,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:27:48,782 INFO L225 Difference]: With dead ends: 55 [2021-10-05 22:27:48,783 INFO L226 Difference]: Without dead ends: 40 [2021-10-05 22:27:48,783 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 93.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-05 22:27:48,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-05 22:27:48,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2021-10-05 22:27:48,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 31 states have internal predecessors, (48), 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 22:27:48,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 48 transitions. [2021-10-05 22:27:48,788 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 48 transitions. Word has length 16 [2021-10-05 22:27:48,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:27:48,789 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 48 transitions. [2021-10-05 22:27:48,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:48,789 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2021-10-05 22:27:48,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-05 22:27:48,790 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:27:48,790 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:27:48,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-05 22:27:48,791 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:27:48,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:27:48,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1104496008, now seen corresponding path program 4 times [2021-10-05 22:27:48,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:27:48,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578702541] [2021-10-05 22:27:48,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:27:48,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:27:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:27:48,932 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 22:27:48,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:27:48,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578702541] [2021-10-05 22:27:48,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578702541] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:27:48,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:27:48,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-05 22:27:48,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570624295] [2021-10-05 22:27:48,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-05 22:27:48,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:27:48,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-05 22:27:48,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:27:48,936 INFO L87 Difference]: Start difference. First operand 32 states and 48 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:49,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:27:49,075 INFO L93 Difference]: Finished difference Result 43 states and 61 transitions. [2021-10-05 22:27:49,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-05 22:27:49,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-05 22:27:49,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:27:49,076 INFO L225 Difference]: With dead ends: 43 [2021-10-05 22:27:49,076 INFO L226 Difference]: Without dead ends: 24 [2021-10-05 22:27:49,077 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 142.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-05 22:27:49,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-05 22:27:49,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-05 22:27:49,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 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 22:27:49,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-10-05 22:27:49,080 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 16 [2021-10-05 22:27:49,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:27:49,080 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-05 22:27:49,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:49,081 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2021-10-05 22:27:49,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-05 22:27:49,081 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:27:49,082 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:27:49,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-05 22:27:49,082 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:27:49,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:27:49,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1681579684, now seen corresponding path program 5 times [2021-10-05 22:27:49,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:27:49,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568260557] [2021-10-05 22:27:49,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:27:49,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:27:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:27:49,230 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 22:27:49,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:27:49,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568260557] [2021-10-05 22:27:49,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568260557] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:27:49,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:27:49,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-05 22:27:49,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285234967] [2021-10-05 22:27:49,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-05 22:27:49,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:27:49,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-05 22:27:49,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:27:49,234 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:49,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:27:49,332 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2021-10-05 22:27:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-05 22:27:49,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-05 22:27:49,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:27:49,334 INFO L225 Difference]: With dead ends: 31 [2021-10-05 22:27:49,334 INFO L226 Difference]: Without dead ends: 22 [2021-10-05 22:27:49,334 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 105.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-05 22:27:49,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-05 22:27:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-05 22:27:49,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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 22:27:49,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-10-05 22:27:49,338 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 16 [2021-10-05 22:27:49,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:27:49,339 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-10-05 22:27:49,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:49,339 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-10-05 22:27:49,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-05 22:27:49,340 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:27:49,340 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:27:49,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-05 22:27:49,341 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-05 22:27:49,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:27:49,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1718447736, now seen corresponding path program 6 times [2021-10-05 22:27:49,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:27:49,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54049140] [2021-10-05 22:27:49,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:27:49,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:27:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:27:49,493 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 22:27:49,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:27:49,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54049140] [2021-10-05 22:27:49,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54049140] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:27:49,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:27:49,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-05 22:27:49,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180613801] [2021-10-05 22:27:49,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-05 22:27:49,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:27:49,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-05 22:27:49,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:27:49,502 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:49,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:27:49,613 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-10-05 22:27:49,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-05 22:27:49,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-10-05 22:27:49,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:27:49,613 INFO L225 Difference]: With dead ends: 21 [2021-10-05 22:27:49,613 INFO L226 Difference]: Without dead ends: 0 [2021-10-05 22:27:49,614 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 127.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:27:49,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-05 22:27:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-05 22:27:49,614 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 22:27:49,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-05 22:27:49,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-10-05 22:27:49,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:27:49,615 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-05 22:27:49,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 22:27:49,615 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-05 22:27:49,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-05 22:27:49,618 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-05 22:27:49,619 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-05 22:27:49,619 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-05 22:27:49,619 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-05 22:27:49,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-05 22:27:49,624 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-05 22:27:49,624 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-05 22:27:49,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:27:49 BasicIcfg [2021-10-05 22:27:49,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-05 22:27:49,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-05 22:27:49,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-05 22:27:49,628 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-05 22:27:49,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:27:41" (3/4) ... [2021-10-05 22:27:49,632 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-05 22:27:49,640 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-05 22:27:49,640 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-05 22:27:49,640 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-05 22:27:49,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-05 22:27:49,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-05 22:27:49,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-05 22:27:49,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-05 22:27:49,702 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-05 22:27:49,702 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-05 22:27:49,707 INFO L168 Benchmark]: Toolchain (without parser) took 9553.37 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 28.7 MB in the beginning and 42.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. [2021-10-05 22:27:49,708 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory was 19.1 MB in the beginning and 19.0 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:27:49,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.46 ms. Allocated memory is still 52.4 MB. Free memory was 28.3 MB in the beginning and 29.1 MB in the end (delta: -792.7 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-05 22:27:49,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.97 ms. Allocated memory is still 52.4 MB. Free memory was 29.0 MB in the beginning and 27.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:27:49,709 INFO L168 Benchmark]: Boogie Preprocessor took 56.48 ms. Allocated memory is still 52.4 MB. Free memory was 27.4 MB in the beginning and 26.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 22:27:49,711 INFO L168 Benchmark]: RCFGBuilder took 564.03 ms. Allocated memory is still 52.4 MB. Free memory was 26.1 MB in the beginning and 24.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2021-10-05 22:27:49,712 INFO L168 Benchmark]: TraceAbstraction took 8508.05 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 24.5 MB in the beginning and 46.9 MB in the end (delta: -22.4 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-05 22:27:49,712 INFO L168 Benchmark]: Witness Printer took 74.75 ms. Allocated memory is still 92.3 MB. Free memory was 46.9 MB in the beginning and 42.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-05 22:27:49,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 41.9 MB. Free memory was 19.1 MB in the beginning and 19.0 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 286.46 ms. Allocated memory is still 52.4 MB. Free memory was 28.3 MB in the beginning and 29.1 MB in the end (delta: -792.7 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.97 ms. Allocated memory is still 52.4 MB. Free memory was 29.0 MB in the beginning and 27.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.48 ms. Allocated memory is still 52.4 MB. Free memory was 27.4 MB in the beginning and 26.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 564.03 ms. Allocated memory is still 52.4 MB. Free memory was 26.1 MB in the beginning and 24.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8508.05 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 24.5 MB in the beginning and 46.9 MB in the end (delta: -22.4 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * Witness Printer took 74.75 ms. Allocated memory is still 92.3 MB. Free memory was 46.9 MB in the beginning and 42.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5801.9ms, 134 PlacesBefore, 30 PlacesAfterwards, 134 TransitionsBefore, 20 TransitionsAfterwards, 2958 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 10 ChoiceCompositions, 136 TotalNumberOfCompositions, 2840 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2840, positive: 2840, positive conditional: 0, positive unconditional: 2840, 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: 2195, positive: 2195, positive conditional: 0, positive unconditional: 2195, 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: 2195, positive: 2195, positive conditional: 0, positive unconditional: 2195, 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: 2840, positive: 645, positive conditional: 0, positive unconditional: 645, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2195, unknown conditional: 0, unknown unconditional: 2195] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, 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: 72]: 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 7 procedures, 173 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8269.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 14.6ms, AutomataDifference: 788.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5882.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 122 SDtfs, 202 SDslu, 157 SDs, 0 SdLazy, 77 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 126.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 743.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 56.2ms AutomataMinimizationTime, 6 MinimizatonAttempts, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.1ms SsaConstructionTime, 337.5ms SatisfiabilityAnalysisTime, 944.9ms InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 1491 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 22:27:49,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...