./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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/parallel/bluetooth.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 d5ef3f658ba17e6b7b992b9d7d7cee734b6c2281 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:02:16,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-05 21:02:16,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-05 21:02:16,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-05 21:02:16,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-05 21:02:16,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-05 21:02:16,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-05 21:02:16,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-05 21:02:16,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-05 21:02:16,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-05 21:02:16,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-05 21:02:16,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-05 21:02:16,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-05 21:02:16,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-05 21:02:16,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-05 21:02:16,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-05 21:02:16,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-05 21:02:16,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-05 21:02:16,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-05 21:02:16,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-05 21:02:16,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-05 21:02:16,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-05 21:02:16,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-05 21:02:16,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-05 21:02:16,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-05 21:02:16,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-05 21:02:16,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-05 21:02:16,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-05 21:02:16,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-05 21:02:16,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-05 21:02:16,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-05 21:02:16,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-05 21:02:16,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-05 21:02:16,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-05 21:02:16,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-05 21:02:16,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-05 21:02:16,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-05 21:02:16,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-05 21:02:16,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-05 21:02:16,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-05 21:02:16,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-05 21:02:16,592 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 21:02:16,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-05 21:02:16,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-05 21:02:16,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-05 21:02:16,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-05 21:02:16,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-05 21:02:16,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-05 21:02:16,650 INFO L138 SettingsManager]: * Use SBE=true [2021-10-05 21:02:16,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-05 21:02:16,650 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-05 21:02:16,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-05 21:02:16,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-05 21:02:16,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-05 21:02:16,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-05 21:02:16,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-05 21:02:16,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-05 21:02:16,652 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-05 21:02:16,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-05 21:02:16,653 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-05 21:02:16,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-05 21:02:16,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-05 21:02:16,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-05 21:02:16,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-05 21:02:16,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 21:02:16,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-05 21:02:16,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-05 21:02:16,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-05 21:02:16,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-05 21:02:16,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-05 21:02:16,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-05 21:02:16,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-05 21:02:16,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5ef3f658ba17e6b7b992b9d7d7cee734b6c2281 [2021-10-05 21:02:17,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-05 21:02:17,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-05 21:02:17,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-05 21:02:17,115 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-05 21:02:17,116 INFO L275 PluginConnector]: CDTParser initialized [2021-10-05 21:02:17,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c [2021-10-05 21:02:17,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d6b278b2/86cb2feb66fb4535a8156fe1d74a2d4e/FLAG5d899dd3b [2021-10-05 21:02:17,854 INFO L306 CDTParser]: Found 1 translation units. [2021-10-05 21:02:17,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/bluetooth.wvr.c [2021-10-05 21:02:17,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d6b278b2/86cb2feb66fb4535a8156fe1d74a2d4e/FLAG5d899dd3b [2021-10-05 21:02:18,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3d6b278b2/86cb2feb66fb4535a8156fe1d74a2d4e [2021-10-05 21:02:18,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-05 21:02:18,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-05 21:02:18,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-05 21:02:18,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-05 21:02:18,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-05 21:02:18,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d29d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18, skipping insertion in model container [2021-10-05 21:02:18,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-05 21:02:18,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-05 21:02:18,500 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/parallel/bluetooth.wvr.c[2494,2507] [2021-10-05 21:02:18,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 21:02:18,512 INFO L203 MainTranslator]: Completed pre-run [2021-10-05 21:02:18,535 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/parallel/bluetooth.wvr.c[2494,2507] [2021-10-05 21:02:18,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 21:02:18,553 INFO L208 MainTranslator]: Completed translation [2021-10-05 21:02:18,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18 WrapperNode [2021-10-05 21:02:18,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-05 21:02:18,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-05 21:02:18,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-05 21:02:18,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-05 21:02:18,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-05 21:02:18,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-05 21:02:18,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-05 21:02:18,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-05 21:02:18,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-05 21:02:18,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-05 21:02:18,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-05 21:02:18,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-05 21:02:18,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18" (1/1) ... [2021-10-05 21:02:18,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 21:02:18,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 21:02:18,674 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 21:02:18,680 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 21:02:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-05 21:02:18,728 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-05 21:02:18,728 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-05 21:02:18,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-05 21:02:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-05 21:02:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-05 21:02:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-05 21:02:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-05 21:02:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-05 21:02:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-05 21:02:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-05 21:02:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-05 21:02:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-05 21:02:18,732 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 21:02:19,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-05 21:02:19,219 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-05 21:02:19,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 09:02:19 BoogieIcfgContainer [2021-10-05 21:02:19,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-05 21:02:19,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-05 21:02:19,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-05 21:02:19,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-05 21:02:19,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 09:02:18" (1/3) ... [2021-10-05 21:02:19,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b82792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 09:02:19, skipping insertion in model container [2021-10-05 21:02:19,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 09:02:18" (2/3) ... [2021-10-05 21:02:19,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b82792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 09:02:19, skipping insertion in model container [2021-10-05 21:02:19,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 09:02:19" (3/3) ... [2021-10-05 21:02:19,236 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth.wvr.c [2021-10-05 21:02:19,243 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-05 21:02:19,243 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-05 21:02:19,244 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-05 21:02:19,244 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-05 21:02:19,292 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,293 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,294 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,295 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,295 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,295 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,296 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,300 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,300 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,301 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,301 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,301 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,303 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,303 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,304 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,304 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,305 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,305 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,306 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,306 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,306 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,306 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,307 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,307 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,308 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,308 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,308 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,309 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,309 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,310 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,310 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,310 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,311 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,311 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,319 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,320 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,321 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,321 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,321 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,325 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,326 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,326 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,326 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 21:02:19,339 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-05 21:02:19,406 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-05 21:02:19,419 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 21:02:19,420 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-05 21:02:19,446 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-05 21:02:19,460 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 124 transitions, 264 flow [2021-10-05 21:02:19,464 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 124 transitions, 264 flow [2021-10-05 21:02:19,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 124 transitions, 264 flow [2021-10-05 21:02:19,577 INFO L129 PetriNetUnfolder]: 10/122 cut-off events. [2021-10-05 21:02:19,578 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-05 21:02:19,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 122 events. 10/122 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2021-10-05 21:02:19,600 INFO L116 LiptonReduction]: Number of co-enabled transitions 642 [2021-10-05 21:02:24,523 INFO L131 LiptonReduction]: Checked pairs total: 2650 [2021-10-05 21:02:24,524 INFO L133 LiptonReduction]: Total number of compositions: 132 [2021-10-05 21:02:24,537 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 25 transitions, 66 flow [2021-10-05 21:02:24,557 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 114 states, 113 states have (on average 2.353982300884956) internal successors, (266), 113 states have internal predecessors, (266), 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 21:02:24,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 113 states have (on average 2.353982300884956) internal successors, (266), 113 states have internal predecessors, (266), 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 21:02:24,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-05 21:02:24,570 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 21:02:24,571 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 21:02:24,571 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 21:02:24,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 21:02:24,578 INFO L82 PathProgramCache]: Analyzing trace with hash 929607858, now seen corresponding path program 1 times [2021-10-05 21:02:24,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 21:02:24,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393434304] [2021-10-05 21:02:24,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 21:02:24,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 21:02:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 21:02:24,951 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 21:02:24,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 21:02:24,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393434304] [2021-10-05 21:02:24,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393434304] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 21:02:24,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 21:02:24,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 21:02:24,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174915116] [2021-10-05 21:02:24,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 21:02:24,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 21:02:24,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 21:02:24,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-05 21:02:24,989 INFO L87 Difference]: Start difference. First operand has 114 states, 113 states have (on average 2.353982300884956) internal successors, (266), 113 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 21:02:25,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 21:02:25,057 INFO L93 Difference]: Finished difference Result 187 states and 441 transitions. [2021-10-05 21:02:25,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-05 21:02:25,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2021-10-05 21:02:25,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 21:02:25,077 INFO L225 Difference]: With dead ends: 187 [2021-10-05 21:02:25,078 INFO L226 Difference]: Without dead ends: 102 [2021-10-05 21:02:25,082 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-05 21:02:25,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-05 21:02:25,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-10-05 21:02:25,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 2.3168316831683167) internal successors, (234), 101 states have internal predecessors, (234), 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 21:02:25,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 234 transitions. [2021-10-05 21:02:25,155 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 234 transitions. Word has length 18 [2021-10-05 21:02:25,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 21:02:25,157 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 234 transitions. [2021-10-05 21:02:25,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 21:02:25,162 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 234 transitions. [2021-10-05 21:02:25,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-05 21:02:25,165 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 21:02:25,165 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 21:02:25,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-05 21:02:25,166 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 21:02:25,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 21:02:25,167 INFO L82 PathProgramCache]: Analyzing trace with hash 722984696, now seen corresponding path program 2 times [2021-10-05 21:02:25,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 21:02:25,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377446874] [2021-10-05 21:02:25,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 21:02:25,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 21:02:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 21:02:25,328 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 21:02:25,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 21:02:25,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377446874] [2021-10-05 21:02:25,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377446874] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 21:02:25,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 21:02:25,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-05 21:02:25,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590864778] [2021-10-05 21:02:25,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-05 21:02:25,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 21:02:25,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-05 21:02:25,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-05 21:02:25,333 INFO L87 Difference]: Start difference. First operand 102 states and 234 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 21:02:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 21:02:25,401 INFO L93 Difference]: Finished difference Result 152 states and 338 transitions. [2021-10-05 21:02:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-05 21:02:25,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2021-10-05 21:02:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 21:02:25,404 INFO L225 Difference]: With dead ends: 152 [2021-10-05 21:02:25,404 INFO L226 Difference]: Without dead ends: 152 [2021-10-05 21:02:25,405 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.8ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-05 21:02:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-05 21:02:25,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 124. [2021-10-05 21:02:25,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 2.268292682926829) internal successors, (279), 123 states have internal predecessors, (279), 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 21:02:25,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 279 transitions. [2021-10-05 21:02:25,434 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 279 transitions. Word has length 18 [2021-10-05 21:02:25,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 21:02:25,435 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 279 transitions. [2021-10-05 21:02:25,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 21:02:25,436 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 279 transitions. [2021-10-05 21:02:25,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-05 21:02:25,437 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 21:02:25,438 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 21:02:25,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-05 21:02:25,438 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 21:02:25,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 21:02:25,439 INFO L82 PathProgramCache]: Analyzing trace with hash 61603512, now seen corresponding path program 3 times [2021-10-05 21:02:25,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 21:02:25,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055662219] [2021-10-05 21:02:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 21:02:25,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 21:02:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 21:02:25,482 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 21:02:25,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 21:02:25,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055662219] [2021-10-05 21:02:25,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055662219] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 21:02:25,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 21:02:25,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 21:02:25,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344280389] [2021-10-05 21:02:25,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-05 21:02:25,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 21:02:25,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-05 21:02:25,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 21:02:25,486 INFO L87 Difference]: Start difference. First operand 124 states and 279 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 21:02:25,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 21:02:25,505 INFO L93 Difference]: Finished difference Result 172 states and 361 transitions. [2021-10-05 21:02:25,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-05 21:02:25,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-10-05 21:02:25,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 21:02:25,508 INFO L225 Difference]: With dead ends: 172 [2021-10-05 21:02:25,508 INFO L226 Difference]: Without dead ends: 172 [2021-10-05 21:02:25,509 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 21:02:25,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-05 21:02:25,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 134. [2021-10-05 21:02:25,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 2.2481203007518795) internal successors, (299), 133 states have internal predecessors, (299), 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 21:02:25,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 299 transitions. [2021-10-05 21:02:25,521 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 299 transitions. Word has length 18 [2021-10-05 21:02:25,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 21:02:25,522 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 299 transitions. [2021-10-05 21:02:25,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 21:02:25,523 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 299 transitions. [2021-10-05 21:02:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-05 21:02:25,524 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 21:02:25,525 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 21:02:25,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-05 21:02:25,525 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 21:02:25,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 21:02:25,526 INFO L82 PathProgramCache]: Analyzing trace with hash -2072324644, now seen corresponding path program 4 times [2021-10-05 21:02:25,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 21:02:25,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876631127] [2021-10-05 21:02:25,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 21:02:25,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 21:02:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 21:02:25,570 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 21:02:25,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 21:02:25,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876631127] [2021-10-05 21:02:25,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876631127] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 21:02:25,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 21:02:25,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 21:02:25,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661113518] [2021-10-05 21:02:25,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-05 21:02:25,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 21:02:25,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-05 21:02:25,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 21:02:25,576 INFO L87 Difference]: Start difference. First operand 134 states and 299 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 21:02:25,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 21:02:25,605 INFO L93 Difference]: Finished difference Result 186 states and 388 transitions. [2021-10-05 21:02:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-05 21:02:25,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-10-05 21:02:25,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 21:02:25,608 INFO L225 Difference]: With dead ends: 186 [2021-10-05 21:02:25,608 INFO L226 Difference]: Without dead ends: 186 [2021-10-05 21:02:25,609 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-05 21:02:25,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-10-05 21:02:25,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 134. [2021-10-05 21:02:25,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 2.2481203007518795) internal successors, (299), 133 states have internal predecessors, (299), 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 21:02:25,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 299 transitions. [2021-10-05 21:02:25,633 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 299 transitions. Word has length 18 [2021-10-05 21:02:25,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 21:02:25,634 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 299 transitions. [2021-10-05 21:02:25,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 21:02:25,634 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 299 transitions. [2021-10-05 21:02:25,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-05 21:02:25,635 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 21:02:25,636 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 21:02:25,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-05 21:02:25,637 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 21:02:25,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 21:02:25,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1122870840, now seen corresponding path program 5 times [2021-10-05 21:02:25,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 21:02:25,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581906125] [2021-10-05 21:02:25,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 21:02:25,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 21:02:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 21:02:25,828 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 21:02:25,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 21:02:25,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581906125] [2021-10-05 21:02:25,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581906125] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 21:02:25,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 21:02:25,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-05 21:02:25,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983646111] [2021-10-05 21:02:25,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-05 21:02:25,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 21:02:25,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-05 21:02:25,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-05 21:02:25,832 INFO L87 Difference]: Start difference. First operand 134 states and 299 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 21:02:25,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 21:02:25,856 INFO L93 Difference]: Finished difference Result 133 states and 298 transitions. [2021-10-05 21:02:25,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-05 21:02:25,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-10-05 21:02:25,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 21:02:25,858 INFO L225 Difference]: With dead ends: 133 [2021-10-05 21:02:25,858 INFO L226 Difference]: Without dead ends: 0 [2021-10-05 21:02:25,858 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-05 21:02:25,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-05 21:02:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-05 21:02:25,859 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 21:02:25,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-05 21:02:25,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-10-05 21:02:25,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 21:02:25,860 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-05 21:02:25,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 21:02:25,860 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-05 21:02:25,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-05 21:02:25,863 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-05 21:02:25,864 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-05 21:02:25,864 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-05 21:02:25,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-05 21:02:25,869 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-05 21:02:25,869 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-05 21:02:25,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 09:02:25 BasicIcfg [2021-10-05 21:02:25,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-05 21:02:25,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-05 21:02:25,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-05 21:02:25,872 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-05 21:02:25,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 09:02:19" (3/4) ... [2021-10-05 21:02:25,876 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-05 21:02:25,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-05 21:02:25,883 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-05 21:02:25,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-05 21:02:25,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-05 21:02:25,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-05 21:02:25,890 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-05 21:02:25,937 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-05 21:02:25,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-05 21:02:25,939 INFO L168 Benchmark]: Toolchain (without parser) took 7770.91 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 34.3 MB in the beginning and 34.2 MB in the end (delta: 107.7 kB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2021-10-05 21:02:25,940 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 41.9 MB. Free memory is still 20.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 21:02:25,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.31 ms. Allocated memory is still 58.7 MB. Free memory was 34.0 MB in the beginning and 39.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-10-05 21:02:25,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.43 ms. Allocated memory is still 58.7 MB. Free memory was 39.0 MB in the beginning and 37.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 21:02:25,942 INFO L168 Benchmark]: Boogie Preprocessor took 26.19 ms. Allocated memory is still 58.7 MB. Free memory was 37.4 MB in the beginning and 36.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 21:02:25,942 INFO L168 Benchmark]: RCFGBuilder took 594.85 ms. Allocated memory is still 58.7 MB. Free memory was 36.1 MB in the beginning and 38.8 MB in the end (delta: -2.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-10-05 21:02:25,943 INFO L168 Benchmark]: TraceAbstraction took 6643.62 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 38.5 MB in the beginning and 37.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2021-10-05 21:02:25,943 INFO L168 Benchmark]: Witness Printer took 65.39 ms. Allocated memory is still 88.1 MB. Free memory was 37.2 MB in the beginning and 34.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 21:02:25,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 41.9 MB. Free memory is still 20.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 376.31 ms. Allocated memory is still 58.7 MB. Free memory was 34.0 MB in the beginning and 39.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.43 ms. Allocated memory is still 58.7 MB. Free memory was 39.0 MB in the beginning and 37.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.19 ms. Allocated memory is still 58.7 MB. Free memory was 37.4 MB in the beginning and 36.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 594.85 ms. Allocated memory is still 58.7 MB. Free memory was 36.1 MB in the beginning and 38.8 MB in the end (delta: -2.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6643.62 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 38.5 MB in the beginning and 37.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. * Witness Printer took 65.39 ms. Allocated memory is still 88.1 MB. Free memory was 37.2 MB in the beginning and 34.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5060.9ms, 121 PlacesBefore, 30 PlacesAfterwards, 124 TransitionsBefore, 25 TransitionsAfterwards, 642 CoEnabledTransitionPairs, 7 FixpointIterations, 77 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 7 ConcurrentYvCompositions, 8 ChoiceCompositions, 132 TotalNumberOfCompositions, 2650 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1838, positive: 1668, positive conditional: 0, positive unconditional: 1668, negative: 170, negative conditional: 0, negative unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 599, positive: 561, positive conditional: 0, positive unconditional: 561, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 599, positive: 556, positive conditional: 0, positive unconditional: 556, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1838, positive: 1107, positive conditional: 0, positive unconditional: 1107, negative: 132, negative conditional: 0, negative unconditional: 132, unknown: 599, unknown conditional: 0, unknown unconditional: 599] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 123, Positive conditional cache size: 0, Positive unconditional cache size: 123, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - 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: 93]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 141 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6464.8ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 19.7ms, AutomataDifference: 274.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5137.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 150 SDtfs, 116 SDslu, 151 SDs, 0 SdLazy, 89 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 86.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 60.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=3, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 123.6ms AutomataMinimizationTime, 5 MinimizatonAttempts, 118 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.4ms SsaConstructionTime, 243.8ms SatisfiabilityAnalysisTime, 429.8ms InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 389 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 21:02:26,001 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...