./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel/ticket-2.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/parallel/ticket-2.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 814ef6098e1c0e2eccf8361f8b958dec54e98c9c -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 22:39:51,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-05 22:39:51,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-05 22:39:51,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-05 22:39:51,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-05 22:39:51,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-05 22:39:51,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-05 22:39:51,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-05 22:39:51,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-05 22:39:51,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-05 22:39:51,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-05 22:39:51,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-05 22:39:51,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-05 22:39:51,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-05 22:39:51,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-05 22:39:51,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-05 22:39:51,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-05 22:39:51,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-05 22:39:51,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-05 22:39:51,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-05 22:39:51,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-05 22:39:51,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-05 22:39:51,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-05 22:39:51,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-05 22:39:51,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-05 22:39:51,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-05 22:39:51,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-05 22:39:51,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-05 22:39:51,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-05 22:39:51,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-05 22:39:51,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-05 22:39:51,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-05 22:39:51,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-05 22:39:51,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-05 22:39:51,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-05 22:39:51,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-05 22:39:51,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-05 22:39:51,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-05 22:39:51,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-05 22:39:51,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-05 22:39:51,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-05 22:39:51,443 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 22:39:51,491 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-05 22:39:51,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-05 22:39:51,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-05 22:39:51,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-05 22:39:51,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-05 22:39:51,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-05 22:39:51,497 INFO L138 SettingsManager]: * Use SBE=true [2021-10-05 22:39:51,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-05 22:39:51,497 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-05 22:39:51,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-05 22:39:51,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-05 22:39:51,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-05 22:39:51,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-05 22:39:51,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-05 22:39:51,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-05 22:39:51,500 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-05 22:39:51,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-05 22:39:51,501 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-05 22:39:51,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-05 22:39:51,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-05 22:39:51,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-05 22:39:51,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-05 22:39:51,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:39:51,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-05 22:39:51,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-05 22:39:51,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-05 22:39:51,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-05 22:39:51,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-05 22:39:51,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-05 22:39:51,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-05 22:39:51,505 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 814ef6098e1c0e2eccf8361f8b958dec54e98c9c [2021-10-05 22:39:51,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-05 22:39:51,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-05 22:39:51,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-05 22:39:51,969 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-05 22:39:51,969 INFO L275 PluginConnector]: CDTParser initialized [2021-10-05 22:39:51,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel/ticket-2.wvr.c [2021-10-05 22:39:52,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8038cddb/d29dc64187c4467489d09bb19cdf1208/FLAGee63d4fb3 [2021-10-05 22:39:52,771 INFO L306 CDTParser]: Found 1 translation units. [2021-10-05 22:39:52,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel/ticket-2.wvr.c [2021-10-05 22:39:52,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8038cddb/d29dc64187c4467489d09bb19cdf1208/FLAGee63d4fb3 [2021-10-05 22:39:53,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c8038cddb/d29dc64187c4467489d09bb19cdf1208 [2021-10-05 22:39:53,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-05 22:39:53,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-05 22:39:53,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-05 22:39:53,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-05 22:39:53,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-05 22:39:53,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341592d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53, skipping insertion in model container [2021-10-05 22:39:53,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-05 22:39:53,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-05 22:39:53,390 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/ticket-2.wvr.c[2232,2245] [2021-10-05 22:39:53,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:39:53,407 INFO L203 MainTranslator]: Completed pre-run [2021-10-05 22:39:53,433 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/ticket-2.wvr.c[2232,2245] [2021-10-05 22:39:53,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-05 22:39:53,453 INFO L208 MainTranslator]: Completed translation [2021-10-05 22:39:53,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53 WrapperNode [2021-10-05 22:39:53,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-05 22:39:53,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-05 22:39:53,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-05 22:39:53,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-05 22:39:53,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-05 22:39:53,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-05 22:39:53,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-05 22:39:53,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-05 22:39:53,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-05 22:39:53,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-05 22:39:53,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-05 22:39:53,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-05 22:39:53,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53" (1/1) ... [2021-10-05 22:39:53,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-05 22:39:53,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-05 22:39:53,593 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 22:39:53,610 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 22:39:53,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-05 22:39:53,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-05 22:39:53,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-05 22:39:53,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-05 22:39:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-05 22:39:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-05 22:39:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-05 22:39:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-05 22:39:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-05 22:39:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-05 22:39:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-05 22:39:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-05 22:39:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-05 22:39:53,684 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 22:39:54,293 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-05 22:39:54,296 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-05 22:39:54,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:39:54 BoogieIcfgContainer [2021-10-05 22:39:54,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-05 22:39:54,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-05 22:39:54,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-05 22:39:54,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-05 22:39:54,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:39:53" (1/3) ... [2021-10-05 22:39:54,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4de39e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:39:54, skipping insertion in model container [2021-10-05 22:39:54,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:39:53" (2/3) ... [2021-10-05 22:39:54,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4de39e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:39:54, skipping insertion in model container [2021-10-05 22:39:54,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:39:54" (3/3) ... [2021-10-05 22:39:54,315 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-2.wvr.c [2021-10-05 22:39:54,322 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-05 22:39:54,323 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-05 22:39:54,323 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-05 22:39:54,323 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-05 22:39:54,383 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,384 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,385 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,386 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,386 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,387 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,387 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,388 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,389 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,389 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,389 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,390 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,391 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,392 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,394 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,395 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,396 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,396 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,397 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,397 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,397 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,398 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,400 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,401 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,401 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,402 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,403 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,403 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,403 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,403 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,404 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,404 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,404 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,405 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,406 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,406 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,407 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,409 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,409 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,409 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,409 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,410 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,428 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,431 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,431 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,432 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,439 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,441 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,442 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,442 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,442 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,443 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-05 22:39:54,455 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-05 22:39:54,532 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-05 22:39:54,552 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 22:39:54,553 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-05 22:39:54,585 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-05 22:39:54,602 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 99 transitions, 214 flow [2021-10-05 22:39:54,606 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 99 transitions, 214 flow [2021-10-05 22:39:54,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 99 transitions, 214 flow [2021-10-05 22:39:54,710 INFO L129 PetriNetUnfolder]: 4/97 cut-off events. [2021-10-05 22:39:54,710 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-05 22:39:54,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 97 events. 4/97 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2021-10-05 22:39:54,724 INFO L116 LiptonReduction]: Number of co-enabled transitions 772 [2021-10-05 22:39:58,557 INFO L131 LiptonReduction]: Checked pairs total: 2111 [2021-10-05 22:39:58,557 INFO L133 LiptonReduction]: Total number of compositions: 88 [2021-10-05 22:39:58,569 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 24 transitions, 64 flow [2021-10-05 22:39:58,590 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 114 states, 113 states have (on average 2.230088495575221) internal successors, (252), 113 states have internal predecessors, (252), 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 22:39:58,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 113 states have (on average 2.230088495575221) internal successors, (252), 113 states have internal predecessors, (252), 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 22:39:58,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-05 22:39:58,603 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:39:58,604 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:39:58,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:39:58,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:39:58,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1708763395, now seen corresponding path program 1 times [2021-10-05 22:39:58,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:39:58,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239178939] [2021-10-05 22:39:58,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:39:58,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:39:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:39:58,833 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 22:39:58,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:39:58,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239178939] [2021-10-05 22:39:58,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239178939] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:39:58,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:39:58,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-05 22:39:58,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361404357] [2021-10-05 22:39:58,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-05 22:39:58,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:39:58,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-05 22:39:58,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-05 22:39:58,865 INFO L87 Difference]: Start difference. First operand has 114 states, 113 states have (on average 2.230088495575221) internal successors, (252), 113 states have internal predecessors, (252), 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 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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 22:39:58,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:39:58,886 INFO L93 Difference]: Finished difference Result 114 states and 236 transitions. [2021-10-05 22:39:58,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-05 22:39:58,888 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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 22:39:58,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:39:58,900 INFO L225 Difference]: With dead ends: 114 [2021-10-05 22:39:58,901 INFO L226 Difference]: Without dead ends: 114 [2021-10-05 22:39:58,902 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-05 22:39:58,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-05 22:39:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-10-05 22:39:58,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 2.088495575221239) internal successors, (236), 113 states have internal predecessors, (236), 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 22:39:58,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 236 transitions. [2021-10-05 22:39:58,956 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 236 transitions. Word has length 16 [2021-10-05 22:39:58,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:39:58,957 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 236 transitions. [2021-10-05 22:39:58,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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 22:39:58,957 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 236 transitions. [2021-10-05 22:39:58,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-05 22:39:58,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:39:58,960 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:39:58,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-05 22:39:58,961 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:39:58,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:39:58,962 INFO L82 PathProgramCache]: Analyzing trace with hash -382762808, now seen corresponding path program 1 times [2021-10-05 22:39:58,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:39:58,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594963169] [2021-10-05 22:39:58,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:39:58,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:39:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:39:59,268 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 22:39:59,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:39:59,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594963169] [2021-10-05 22:39:59,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594963169] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:39:59,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:39:59,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-05 22:39:59,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364265687] [2021-10-05 22:39:59,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-05 22:39:59,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:39:59,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-05 22:39:59,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-05 22:39:59,276 INFO L87 Difference]: Start difference. First operand 114 states and 236 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 22:39:59,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:39:59,320 INFO L93 Difference]: Finished difference Result 145 states and 293 transitions. [2021-10-05 22:39:59,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-05 22:39:59,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2021-10-05 22:39:59,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:39:59,322 INFO L225 Difference]: With dead ends: 145 [2021-10-05 22:39:59,322 INFO L226 Difference]: Without dead ends: 66 [2021-10-05 22:39:59,323 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.6ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-05 22:39:59,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-05 22:39:59,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-05 22:39:59,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.876923076923077) internal successors, (122), 65 states have internal predecessors, (122), 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 22:39:59,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 122 transitions. [2021-10-05 22:39:59,332 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 122 transitions. Word has length 20 [2021-10-05 22:39:59,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:39:59,332 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 122 transitions. [2021-10-05 22:39:59,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 22:39:59,333 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 122 transitions. [2021-10-05 22:39:59,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-05 22:39:59,334 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:39:59,334 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:39:59,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-05 22:39:59,335 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:39:59,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:39:59,336 INFO L82 PathProgramCache]: Analyzing trace with hash 555910208, now seen corresponding path program 2 times [2021-10-05 22:39:59,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:39:59,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007085845] [2021-10-05 22:39:59,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:39:59,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:39:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:39:59,470 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 22:39:59,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:39:59,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007085845] [2021-10-05 22:39:59,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007085845] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:39:59,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:39:59,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-05 22:39:59,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284821025] [2021-10-05 22:39:59,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-05 22:39:59,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:39:59,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-05 22:39:59,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-05 22:39:59,475 INFO L87 Difference]: Start difference. First operand 66 states and 122 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 22:39:59,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:39:59,534 INFO L93 Difference]: Finished difference Result 72 states and 129 transitions. [2021-10-05 22:39:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-05 22:39:59,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2021-10-05 22:39:59,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:39:59,536 INFO L225 Difference]: With dead ends: 72 [2021-10-05 22:39:59,536 INFO L226 Difference]: Without dead ends: 54 [2021-10-05 22:39:59,537 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 27.3ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-05 22:39:59,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-05 22:39:59,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-10-05 22:39:59,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.7924528301886793) internal successors, (95), 53 states have internal predecessors, (95), 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 22:39:59,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 95 transitions. [2021-10-05 22:39:59,543 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 95 transitions. Word has length 20 [2021-10-05 22:39:59,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:39:59,544 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 95 transitions. [2021-10-05 22:39:59,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 22:39:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 95 transitions. [2021-10-05 22:39:59,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-05 22:39:59,545 INFO L504 BasicCegarLoop]: Found error trace [2021-10-05 22:39:59,546 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-05 22:39:59,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-05 22:39:59,546 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-05 22:39:59,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-05 22:39:59,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1440704898, now seen corresponding path program 3 times [2021-10-05 22:39:59,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-05 22:39:59,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229814732] [2021-10-05 22:39:59,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-05 22:39:59,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-05 22:39:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-05 22:39:59,672 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 22:39:59,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-05 22:39:59,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229814732] [2021-10-05 22:39:59,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229814732] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-05 22:39:59,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-05 22:39:59,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-05 22:39:59,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475228035] [2021-10-05 22:39:59,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-05 22:39:59,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-05 22:39:59,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-05 22:39:59,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-05 22:39:59,676 INFO L87 Difference]: Start difference. First operand 54 states and 95 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 22:39:59,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-05 22:39:59,726 INFO L93 Difference]: Finished difference Result 18 states and 27 transitions. [2021-10-05 22:39:59,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-05 22:39:59,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2021-10-05 22:39:59,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-05 22:39:59,734 INFO L225 Difference]: With dead ends: 18 [2021-10-05 22:39:59,734 INFO L226 Difference]: Without dead ends: 0 [2021-10-05 22:39:59,734 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.8ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-05 22:39:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-05 22:39:59,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-05 22:39:59,735 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 22:39:59,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-05 22:39:59,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-10-05 22:39:59,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-05 22:39:59,736 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-05 22:39:59,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 22:39:59,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-05 22:39:59,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-05 22:39:59,740 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-05 22:39:59,741 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-05 22:39:59,741 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-05 22:39:59,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-05 22:39:59,746 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-05 22:39:59,746 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-05 22:39:59,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:39:59 BasicIcfg [2021-10-05 22:39:59,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-05 22:39:59,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-05 22:39:59,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-05 22:39:59,751 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-05 22:39:59,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:39:54" (3/4) ... [2021-10-05 22:39:59,756 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-05 22:39:59,763 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-05 22:39:59,764 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-05 22:39:59,772 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-05 22:39:59,772 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-05 22:39:59,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-05 22:39:59,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-05 22:39:59,819 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-10-05 22:39:59,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-05 22:39:59,824 INFO L168 Benchmark]: Toolchain (without parser) took 6704.39 ms. Allocated memory was 52.4 MB in the beginning and 88.1 MB in the end (delta: 35.7 MB). Free memory was 27.8 MB in the beginning and 51.8 MB in the end (delta: -24.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2021-10-05 22:39:59,827 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 52.4 MB. Free memory is still 36.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:39:59,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.66 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 27.6 MB in the beginning and 51.5 MB in the end (delta: -23.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-05 22:39:59,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.26 ms. Allocated memory is still 73.4 MB. Free memory was 51.5 MB in the beginning and 49.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-05 22:39:59,829 INFO L168 Benchmark]: Boogie Preprocessor took 30.15 ms. Allocated memory is still 73.4 MB. Free memory was 49.7 MB in the beginning and 48.7 MB in the end (delta: 955.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-05 22:39:59,832 INFO L168 Benchmark]: RCFGBuilder took 755.89 ms. Allocated memory is still 73.4 MB. Free memory was 48.5 MB in the beginning and 54.5 MB in the end (delta: -6.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-05 22:39:59,833 INFO L168 Benchmark]: TraceAbstraction took 5446.42 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 54.2 MB in the beginning and 55.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-10-05 22:39:59,834 INFO L168 Benchmark]: Witness Printer took 70.95 ms. Allocated memory is still 88.1 MB. Free memory was 55.3 MB in the beginning and 51.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-05 22:39:59,840 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 52.4 MB. Free memory is still 36.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 327.66 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 27.6 MB in the beginning and 51.5 MB in the end (delta: -23.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.26 ms. Allocated memory is still 73.4 MB. Free memory was 51.5 MB in the beginning and 49.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.15 ms. Allocated memory is still 73.4 MB. Free memory was 49.7 MB in the beginning and 48.7 MB in the end (delta: 955.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 755.89 ms. Allocated memory is still 73.4 MB. Free memory was 48.5 MB in the beginning and 54.5 MB in the end (delta: -6.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5446.42 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 54.2 MB in the beginning and 55.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Witness Printer took 70.95 ms. Allocated memory is still 88.1 MB. Free memory was 55.3 MB in the beginning and 51.8 MB in the end (delta: 3.5 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: 3951.2ms, 102 PlacesBefore, 30 PlacesAfterwards, 99 TransitionsBefore, 24 TransitionsAfterwards, 772 CoEnabledTransitionPairs, 6 FixpointIterations, 53 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 88 TotalNumberOfCompositions, 2111 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1426, positive: 1311, positive conditional: 0, positive unconditional: 1311, negative: 115, negative conditional: 0, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 652, positive: 621, positive conditional: 0, positive unconditional: 621, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 652, positive: 619, positive conditional: 0, positive unconditional: 619, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 81, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1426, positive: 690, positive conditional: 0, positive unconditional: 690, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 652, unknown conditional: 0, unknown unconditional: 652] , Statistics on independence cache: Total cache size (in pairs): 104, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - 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: 88]: 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, 125 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5216.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 17.8ms, AutomataDifference: 230.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4037.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 75 SDtfs, 61 SDslu, 96 SDs, 0 SdLazy, 71 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 90.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 51.4ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.3ms SsaConstructionTime, 210.2ms SatisfiabilityAnalysisTime, 452.0ms InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 290 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-05 22:39:59,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...