./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin001_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin001_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt --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 0423b510ae14fe4ff95bc44a0894c8d2c826fc30 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:40:06,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:40:06,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:40:06,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:40:06,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:40:06,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:40:06,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:40:06,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:40:06,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:40:06,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:40:06,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:40:06,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:40:06,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:40:06,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:40:06,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:40:06,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:40:06,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:40:06,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:40:06,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:40:06,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:40:06,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:40:06,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:40:06,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:40:06,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:40:06,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:40:06,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:40:06,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:40:06,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:40:06,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:40:06,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:40:06,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:40:06,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:40:06,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:40:06,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:40:06,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:40:06,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:40:06,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:40:06,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:40:06,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:40:06,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:40:06,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:40:06,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:40:06,426 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:40:06,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:40:06,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:40:06,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:40:06,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:40:06,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:40:06,429 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:40:06,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:40:06,430 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:40:06,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:40:06,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:40:06,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:40:06,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:40:06,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:40:06,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:40:06,432 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:40:06,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:40:06,433 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:40:06,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:40:06,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:40:06,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:40:06,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:40:06,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:40:06,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:40:06,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:40:06,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:40:06,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:40:06,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:40:06,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:40:06,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:40:06,437 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0423b510ae14fe4ff95bc44a0894c8d2c826fc30 [2021-10-13 00:40:06,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:40:06,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:40:06,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:40:06,828 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:40:06,829 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:40:06,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/pthread-wmm/thin001_rmo.oepc.i [2021-10-13 00:40:06,927 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/data/13c878417/bba3ca8fd55c4567ad6c9db9d1f539a7/FLAG97aecc473 [2021-10-13 00:40:07,631 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:40:07,631 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/sv-benchmarks/c/pthread-wmm/thin001_rmo.oepc.i [2021-10-13 00:40:07,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/data/13c878417/bba3ca8fd55c4567ad6c9db9d1f539a7/FLAG97aecc473 [2021-10-13 00:40:07,871 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/data/13c878417/bba3ca8fd55c4567ad6c9db9d1f539a7 [2021-10-13 00:40:07,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:40:07,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:40:07,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:40:07,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:40:07,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:40:07,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:40:07" (1/1) ... [2021-10-13 00:40:07,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2afc51aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:07, skipping insertion in model container [2021-10-13 00:40:07,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:40:07" (1/1) ... [2021-10-13 00:40:07,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:40:07,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:40:08,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/sv-benchmarks/c/pthread-wmm/thin001_rmo.oepc.i[993,1006] [2021-10-13 00:40:08,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:40:08,449 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:40:08,465 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/sv-benchmarks/c/pthread-wmm/thin001_rmo.oepc.i[993,1006] [2021-10-13 00:40:08,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:40:08,577 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:40:08,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08 WrapperNode [2021-10-13 00:40:08,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:40:08,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:40:08,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:40:08,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:40:08,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08" (1/1) ... [2021-10-13 00:40:08,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08" (1/1) ... [2021-10-13 00:40:08,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:40:08,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:40:08,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:40:08,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:40:08,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08" (1/1) ... [2021-10-13 00:40:08,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08" (1/1) ... [2021-10-13 00:40:08,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08" (1/1) ... [2021-10-13 00:40:08,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08" (1/1) ... [2021-10-13 00:40:08,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08" (1/1) ... [2021-10-13 00:40:08,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08" (1/1) ... [2021-10-13 00:40:08,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08" (1/1) ... [2021-10-13 00:40:08,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:40:08,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:40:08,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:40:08,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:40:08,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08" (1/1) ... [2021-10-13 00:40:08,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:40:08,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:08,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:40:08,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:40:08,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:40:08,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:40:08,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 00:40:08,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:40:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:40:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-13 00:40:08,842 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-13 00:40:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-13 00:40:08,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-13 00:40:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-13 00:40:08,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-13 00:40:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:40:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 00:40:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:40:08,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:40:08,846 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 00:40:11,277 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:40:11,278 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-13 00:40:11,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:40:11 BoogieIcfgContainer [2021-10-13 00:40:11,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:40:11,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:40:11,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:40:11,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:40:11,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:40:07" (1/3) ... [2021-10-13 00:40:11,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45675b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:40:11, skipping insertion in model container [2021-10-13 00:40:11,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:08" (2/3) ... [2021-10-13 00:40:11,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45675b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:40:11, skipping insertion in model container [2021-10-13 00:40:11,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:40:11" (3/3) ... [2021-10-13 00:40:11,300 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_rmo.oepc.i [2021-10-13 00:40:11,312 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 00:40:11,312 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:40:11,313 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:40:11,313 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 00:40:11,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,372 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,372 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,373 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,375 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,377 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,377 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,377 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,383 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,383 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,383 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,383 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,383 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,386 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,389 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,390 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,390 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,390 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,391 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,391 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,391 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,391 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,391 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,392 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,392 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,392 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,392 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,393 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,394 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,395 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,395 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,395 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,399 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,400 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,404 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,406 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,407 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,409 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,419 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,421 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,421 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,421 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,422 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,422 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,422 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,422 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,422 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,422 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,423 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,423 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,423 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,423 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,424 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,426 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,427 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,428 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,429 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,437 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,437 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,438 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,438 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,438 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,438 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,438 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,439 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,439 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,439 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,439 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,439 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,440 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,446 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,446 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,446 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,447 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,448 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,449 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,450 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:40:11,452 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-13 00:40:11,518 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:40:11,530 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 [2021-10-13 00:40:11,530 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-13 00:40:11,571 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 00:40:11,582 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 123 transitions, 261 flow [2021-10-13 00:40:11,585 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 123 transitions, 261 flow [2021-10-13 00:40:11,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 131 places, 123 transitions, 261 flow [2021-10-13 00:40:11,651 INFO L129 PetriNetUnfolder]: 2/120 cut-off events. [2021-10-13 00:40:11,652 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-13 00:40:11,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 120 events. 2/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2021-10-13 00:40:11,661 INFO L116 LiptonReduction]: Number of co-enabled transitions 1556 [2021-10-13 00:40:38,317 INFO L131 LiptonReduction]: Checked pairs total: 3774 [2021-10-13 00:40:38,317 INFO L133 LiptonReduction]: Total number of compositions: 112 [2021-10-13 00:40:38,327 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 24 transitions, 63 flow [2021-10-13 00:40:38,374 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 362 states, 361 states have (on average 2.9695290858725762) internal successors, (1072), 361 states have internal predecessors, (1072), 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) [2021-10-13 00:40:38,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 361 states have (on average 2.9695290858725762) internal successors, (1072), 361 states have internal predecessors, (1072), 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) [2021-10-13 00:40:38,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 00:40:38,387 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:38,388 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:38,389 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:40:38,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:38,395 INFO L82 PathProgramCache]: Analyzing trace with hash 262295326, now seen corresponding path program 1 times [2021-10-13 00:40:38,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:38,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115513405] [2021-10-13 00:40:38,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:38,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:38,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:38,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:38,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115513405] [2021-10-13 00:40:38,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115513405] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:38,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:38,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 00:40:38,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362661271] [2021-10-13 00:40:38,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:40:38,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:38,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:40:38,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:38,855 INFO L87 Difference]: Start difference. First operand has 362 states, 361 states have (on average 2.9695290858725762) internal successors, (1072), 361 states have internal predecessors, (1072), 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 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-13 00:40:38,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:38,921 INFO L93 Difference]: Finished difference Result 342 states and 1001 transitions. [2021-10-13 00:40:38,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:38,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-10-13 00:40:38,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:38,952 INFO L225 Difference]: With dead ends: 342 [2021-10-13 00:40:38,953 INFO L226 Difference]: Without dead ends: 342 [2021-10-13 00:40:38,954 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:38,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-10-13 00:40:39,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-10-13 00:40:39,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 341 states have (on average 2.935483870967742) internal successors, (1001), 341 states have internal predecessors, (1001), 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) [2021-10-13 00:40:39,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 1001 transitions. [2021-10-13 00:40:39,043 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 1001 transitions. Word has length 9 [2021-10-13 00:40:39,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:39,045 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 1001 transitions. [2021-10-13 00:40:39,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-13 00:40:39,045 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 1001 transitions. [2021-10-13 00:40:39,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 00:40:39,047 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:39,047 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:39,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:40:39,048 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:40:39,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:39,048 INFO L82 PathProgramCache]: Analyzing trace with hash -461242709, now seen corresponding path program 1 times [2021-10-13 00:40:39,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:39,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278490031] [2021-10-13 00:40:39,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:39,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:39,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:39,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:39,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278490031] [2021-10-13 00:40:39,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278490031] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:39,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:39,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:40:39,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208648171] [2021-10-13 00:40:39,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:40:39,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:39,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:40:39,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:40:39,230 INFO L87 Difference]: Start difference. First operand 342 states and 1001 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-13 00:40:39,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:39,278 INFO L93 Difference]: Finished difference Result 414 states and 1160 transitions. [2021-10-13 00:40:39,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:40:39,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-10-13 00:40:39,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:39,287 INFO L225 Difference]: With dead ends: 414 [2021-10-13 00:40:39,287 INFO L226 Difference]: Without dead ends: 210 [2021-10-13 00:40:39,288 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:40:39,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-10-13 00:40:39,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-10-13 00:40:39,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 2.626794258373206) internal successors, (549), 209 states have internal predecessors, (549), 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) [2021-10-13 00:40:39,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 549 transitions. [2021-10-13 00:40:39,341 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 549 transitions. Word has length 10 [2021-10-13 00:40:39,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:39,342 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 549 transitions. [2021-10-13 00:40:39,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-13 00:40:39,342 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 549 transitions. [2021-10-13 00:40:39,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 00:40:39,344 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:39,344 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:39,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:40:39,345 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:40:39,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:39,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1494117431, now seen corresponding path program 1 times [2021-10-13 00:40:39,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:39,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720453993] [2021-10-13 00:40:39,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:39,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:39,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:39,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:39,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720453993] [2021-10-13 00:40:39,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720453993] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:39,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:39,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:40:39,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842748232] [2021-10-13 00:40:39,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:40:39,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:39,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:40:39,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:40:39,651 INFO L87 Difference]: Start difference. First operand 210 states and 549 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-10-13 00:40:39,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:39,670 INFO L93 Difference]: Finished difference Result 204 states and 530 transitions. [2021-10-13 00:40:39,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:39,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2021-10-13 00:40:39,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:39,673 INFO L225 Difference]: With dead ends: 204 [2021-10-13 00:40:39,674 INFO L226 Difference]: Without dead ends: 204 [2021-10-13 00:40:39,674 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:40:39,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-10-13 00:40:39,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2021-10-13 00:40:39,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 203 states have (on average 2.6108374384236455) internal successors, (530), 203 states have internal predecessors, (530), 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) [2021-10-13 00:40:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 530 transitions. [2021-10-13 00:40:39,705 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 530 transitions. Word has length 12 [2021-10-13 00:40:39,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:39,706 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 530 transitions. [2021-10-13 00:40:39,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-10-13 00:40:39,706 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 530 transitions. [2021-10-13 00:40:39,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 00:40:39,710 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:39,710 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:39,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:40:39,711 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:40:39,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:39,712 INFO L82 PathProgramCache]: Analyzing trace with hash -927000230, now seen corresponding path program 1 times [2021-10-13 00:40:39,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:39,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243824484] [2021-10-13 00:40:39,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:39,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:39,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:39,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:39,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243824484] [2021-10-13 00:40:39,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243824484] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:39,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:39,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:40:39,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517545049] [2021-10-13 00:40:39,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:40:39,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:39,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:40:39,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:40:39,910 INFO L87 Difference]: Start difference. First operand 204 states and 530 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-10-13 00:40:39,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:39,938 INFO L93 Difference]: Finished difference Result 244 states and 620 transitions. [2021-10-13 00:40:39,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:40:39,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2021-10-13 00:40:39,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:39,941 INFO L225 Difference]: With dead ends: 244 [2021-10-13 00:40:39,941 INFO L226 Difference]: Without dead ends: 124 [2021-10-13 00:40:39,942 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:40:39,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-13 00:40:39,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-10-13 00:40:39,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 2.341463414634146) internal successors, (288), 123 states have internal predecessors, (288), 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) [2021-10-13 00:40:39,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 288 transitions. [2021-10-13 00:40:39,949 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 288 transitions. Word has length 13 [2021-10-13 00:40:39,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:39,950 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 288 transitions. [2021-10-13 00:40:39,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-10-13 00:40:39,950 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 288 transitions. [2021-10-13 00:40:39,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 00:40:39,952 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:39,952 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:39,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:40:39,953 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:40:39,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:39,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1327704986, now seen corresponding path program 1 times [2021-10-13 00:40:39,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:39,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666586614] [2021-10-13 00:40:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:39,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:40,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:40,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:40,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666586614] [2021-10-13 00:40:40,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666586614] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:40,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:40,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:40:40,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924958889] [2021-10-13 00:40:40,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:40:40,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:40,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:40:40,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:40:40,277 INFO L87 Difference]: Start difference. First operand 124 states and 288 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-10-13 00:40:40,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:40,362 INFO L93 Difference]: Finished difference Result 184 states and 428 transitions. [2021-10-13 00:40:40,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:40:40,363 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2021-10-13 00:40:40,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:40,366 INFO L225 Difference]: With dead ends: 184 [2021-10-13 00:40:40,366 INFO L226 Difference]: Without dead ends: 184 [2021-10-13 00:40:40,366 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 72.4ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:40:40,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-10-13 00:40:40,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 172. [2021-10-13 00:40:40,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 2.3567251461988303) internal successors, (403), 171 states have internal predecessors, (403), 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) [2021-10-13 00:40:40,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 403 transitions. [2021-10-13 00:40:40,376 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 403 transitions. Word has length 14 [2021-10-13 00:40:40,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:40,377 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 403 transitions. [2021-10-13 00:40:40,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-10-13 00:40:40,378 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 403 transitions. [2021-10-13 00:40:40,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 00:40:40,379 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:40,379 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:40,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:40:40,380 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:40:40,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:40,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1565888132, now seen corresponding path program 2 times [2021-10-13 00:40:40,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:40,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772425397] [2021-10-13 00:40:40,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:40,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:40,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:40,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772425397] [2021-10-13 00:40:40,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772425397] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:40,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:40,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:40:40,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115009854] [2021-10-13 00:40:40,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:40:40,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:40,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:40:40,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:40:40,636 INFO L87 Difference]: Start difference. First operand 172 states and 403 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-10-13 00:40:40,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:40,724 INFO L93 Difference]: Finished difference Result 168 states and 391 transitions. [2021-10-13 00:40:40,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:40:40,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2021-10-13 00:40:40,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:40,727 INFO L225 Difference]: With dead ends: 168 [2021-10-13 00:40:40,727 INFO L226 Difference]: Without dead ends: 168 [2021-10-13 00:40:40,728 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 77.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:40:40,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-10-13 00:40:40,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 120. [2021-10-13 00:40:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 2.319327731092437) internal successors, (276), 119 states have internal predecessors, (276), 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) [2021-10-13 00:40:40,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 276 transitions. [2021-10-13 00:40:40,756 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 276 transitions. Word has length 14 [2021-10-13 00:40:40,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:40,757 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 276 transitions. [2021-10-13 00:40:40,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2021-10-13 00:40:40,757 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 276 transitions. [2021-10-13 00:40:40,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 00:40:40,758 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:40,758 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:40,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:40:40,759 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:40:40,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:40,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1790820434, now seen corresponding path program 1 times [2021-10-13 00:40:40,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:40,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119140859] [2021-10-13 00:40:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:40,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:40,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:40,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:40,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119140859] [2021-10-13 00:40:40,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119140859] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:40,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:40,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:40:40,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886382063] [2021-10-13 00:40:40,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:40:40,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:40,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:40:40,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:40:40,877 INFO L87 Difference]: Start difference. First operand 120 states and 276 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:40,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:40,910 INFO L93 Difference]: Finished difference Result 128 states and 268 transitions. [2021-10-13 00:40:40,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:40:40,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 00:40:40,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:40,913 INFO L225 Difference]: With dead ends: 128 [2021-10-13 00:40:40,913 INFO L226 Difference]: Without dead ends: 102 [2021-10-13 00:40:40,913 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:40:40,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-13 00:40:40,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-10-13 00:40:40,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 2.1386138613861387) internal successors, (216), 101 states have internal predecessors, (216), 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) [2021-10-13 00:40:40,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 216 transitions. [2021-10-13 00:40:40,919 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 216 transitions. Word has length 15 [2021-10-13 00:40:40,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:40,919 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 216 transitions. [2021-10-13 00:40:40,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:40,920 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 216 transitions. [2021-10-13 00:40:40,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 00:40:40,920 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:40,921 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:40,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:40:40,921 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:40:40,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:40,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1348514716, now seen corresponding path program 1 times [2021-10-13 00:40:40,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:40,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053830157] [2021-10-13 00:40:40,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:40,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:41,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:41,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:41,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053830157] [2021-10-13 00:40:41,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053830157] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:41,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:41,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:40:41,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726980457] [2021-10-13 00:40:41,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:40:41,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:41,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:40:41,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:40:41,044 INFO L87 Difference]: Start difference. First operand 102 states and 216 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2021-10-13 00:40:41,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:41,085 INFO L93 Difference]: Finished difference Result 93 states and 176 transitions. [2021-10-13 00:40:41,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:40:41,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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 [2021-10-13 00:40:41,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:41,087 INFO L225 Difference]: With dead ends: 93 [2021-10-13 00:40:41,087 INFO L226 Difference]: Without dead ends: 75 [2021-10-13 00:40:41,087 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.1ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:40:41,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-13 00:40:41,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-10-13 00:40:41,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.8783783783783783) internal successors, (139), 74 states have internal predecessors, (139), 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) [2021-10-13 00:40:41,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 139 transitions. [2021-10-13 00:40:41,091 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 139 transitions. Word has length 16 [2021-10-13 00:40:41,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:41,092 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 139 transitions. [2021-10-13 00:40:41,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2021-10-13 00:40:41,092 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 139 transitions. [2021-10-13 00:40:41,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:40:41,093 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:41,093 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:41,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:40:41,094 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:40:41,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:41,095 INFO L82 PathProgramCache]: Analyzing trace with hash -2138302069, now seen corresponding path program 1 times [2021-10-13 00:40:41,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:41,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781863389] [2021-10-13 00:40:41,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:41,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:41,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:41,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:41,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781863389] [2021-10-13 00:40:41,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781863389] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:41,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:41,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:40:41,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614502610] [2021-10-13 00:40:41,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:40:41,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:41,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:40:41,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:40:41,202 INFO L87 Difference]: Start difference. First operand 75 states and 139 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-13 00:40:41,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:41,250 INFO L93 Difference]: Finished difference Result 66 states and 119 transitions. [2021-10-13 00:40:41,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:40:41,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 17 [2021-10-13 00:40:41,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:41,252 INFO L225 Difference]: With dead ends: 66 [2021-10-13 00:40:41,252 INFO L226 Difference]: Without dead ends: 59 [2021-10-13 00:40:41,253 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.2ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:40:41,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-13 00:40:41,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-10-13 00:40:41,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.8448275862068966) internal successors, (107), 58 states have internal predecessors, (107), 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) [2021-10-13 00:40:41,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 107 transitions. [2021-10-13 00:40:41,256 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 107 transitions. Word has length 17 [2021-10-13 00:40:41,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:41,257 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 107 transitions. [2021-10-13 00:40:41,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-13 00:40:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 107 transitions. [2021-10-13 00:40:41,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:40:41,258 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:41,258 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:41,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 00:40:41,259 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:40:41,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:41,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1554559878, now seen corresponding path program 1 times [2021-10-13 00:40:41,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:41,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387941498] [2021-10-13 00:40:41,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:41,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:41,327 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:40:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:41,435 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:40:41,435 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:40:41,436 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:40:41,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 00:40:41,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 00:40:41,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 00:40:41,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 00:40:41,447 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 00:40:41,447 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:40:41,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:40:41 BasicIcfg [2021-10-13 00:40:41,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:40:41,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:40:41,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:40:41,661 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:40:41,661 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:40:11" (3/4) ... [2021-10-13 00:40:41,663 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 00:40:41,834 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:40:41,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:40:41,836 INFO L168 Benchmark]: Toolchain (without parser) took 33954.14 ms. Allocated memory was 117.4 MB in the beginning and 190.8 MB in the end (delta: 73.4 MB). Free memory was 77.7 MB in the beginning and 135.4 MB in the end (delta: -57.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,836 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 117.4 MB. Free memory is still 96.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:40:41,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.92 ms. Allocated memory is still 117.4 MB. Free memory was 77.5 MB in the beginning and 80.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.63 ms. Allocated memory is still 117.4 MB. Free memory was 80.9 MB in the beginning and 78.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,838 INFO L168 Benchmark]: Boogie Preprocessor took 72.06 ms. Allocated memory is still 117.4 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,838 INFO L168 Benchmark]: RCFGBuilder took 2559.50 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 76.4 MB in the beginning and 114.8 MB in the end (delta: -38.4 MB). Peak memory consumption was 56.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,839 INFO L168 Benchmark]: TraceAbstraction took 30371.54 ms. Allocated memory was 148.9 MB in the beginning and 190.8 MB in the end (delta: 41.9 MB). Free memory was 114.8 MB in the beginning and 155.4 MB in the end (delta: -40.6 MB). Peak memory consumption was 108.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,839 INFO L168 Benchmark]: Witness Printer took 173.79 ms. Allocated memory is still 190.8 MB. Free memory was 155.4 MB in the beginning and 135.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:40:41,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 117.4 MB. Free memory is still 96.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 695.92 ms. Allocated memory is still 117.4 MB. Free memory was 77.5 MB in the beginning and 80.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.63 ms. Allocated memory is still 117.4 MB. Free memory was 80.9 MB in the beginning and 78.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.06 ms. Allocated memory is still 117.4 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2559.50 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 76.4 MB in the beginning and 114.8 MB in the end (delta: -38.4 MB). Peak memory consumption was 56.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30371.54 ms. Allocated memory was 148.9 MB in the beginning and 190.8 MB in the end (delta: 41.9 MB). Free memory was 114.8 MB in the beginning and 155.4 MB in the end (delta: -40.6 MB). Peak memory consumption was 108.3 MB. Max. memory is 16.1 GB. * Witness Printer took 173.79 ms. Allocated memory is still 190.8 MB. Free memory was 155.4 MB in the beginning and 135.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26732.5ms, 131 PlacesBefore, 33 PlacesAfterwards, 123 TransitionsBefore, 24 TransitionsAfterwards, 1556 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 112 TotalNumberOfCompositions, 3774 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2477, positive: 2300, positive conditional: 0, positive unconditional: 2300, negative: 177, negative conditional: 0, negative unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1228, positive: 1177, positive conditional: 0, positive unconditional: 1177, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1228, positive: 1159, positive conditional: 0, positive unconditional: 1159, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 69, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11521, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 445, negative conditional: 0, negative unconditional: 445, unknown: 11022, unknown conditional: 0, unknown unconditional: 11022] ], Cache Queries: [ total: 2477, positive: 1123, positive conditional: 0, positive unconditional: 1123, negative: 126, negative conditional: 0, negative unconditional: 126, unknown: 1228, unknown conditional: 0, unknown unconditional: 1228] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 115, Positive conditional cache size: 0, Positive unconditional cache size: 115, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L713] 0 _Bool __unbuffered_p0_EAX$flush_delayed; [L714] 0 int __unbuffered_p0_EAX$mem_tmp; [L715] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd0; [L716] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd1; [L717] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd2; [L718] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd3; [L719] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd0; [L720] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd1; [L721] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd2; [L722] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd3; [L723] 0 _Bool __unbuffered_p0_EAX$read_delayed; [L724] 0 int *__unbuffered_p0_EAX$read_delayed_var; [L725] 0 int __unbuffered_p0_EAX$w_buff0; [L726] 0 _Bool __unbuffered_p0_EAX$w_buff0_used; [L727] 0 int __unbuffered_p0_EAX$w_buff1; [L728] 0 _Bool __unbuffered_p0_EAX$w_buff1_used; [L730] 0 int __unbuffered_p1_EAX = 0; [L732] 0 int __unbuffered_p2_EAX = 0; [L733] 0 _Bool main$tmp_guard0; [L734] 0 _Bool main$tmp_guard1; [L736] 0 int x = 0; [L738] 0 int y = 0; [L740] 0 int z = 0; [L741] 0 _Bool z$flush_delayed; [L742] 0 int z$mem_tmp; [L743] 0 _Bool z$r_buff0_thd0; [L744] 0 _Bool z$r_buff0_thd1; [L745] 0 _Bool z$r_buff0_thd2; [L746] 0 _Bool z$r_buff0_thd3; [L747] 0 _Bool z$r_buff1_thd0; [L748] 0 _Bool z$r_buff1_thd1; [L749] 0 _Bool z$r_buff1_thd2; [L750] 0 _Bool z$r_buff1_thd3; [L751] 0 _Bool z$read_delayed; [L752] 0 int *z$read_delayed_var; [L753] 0 int z$w_buff0; [L754] 0 _Bool z$w_buff0_used; [L755] 0 int z$w_buff1; [L756] 0 _Bool z$w_buff1_used; [L757] 0 _Bool weak$$choice0; [L758] 0 _Bool weak$$choice1; [L759] 0 _Bool weak$$choice2; [L836] 0 pthread_t t2693; [L837] FCALL, FORK 0 pthread_create(&t2693, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z={6:0}, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t2694; [L839] FCALL, FORK 0 pthread_create(&t2694, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z={6:0}, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t2695; [L841] FCALL, FORK 0 pthread_create(&t2695, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z={6:0}, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L763] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L764] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L765] 1 z$flush_delayed = weak$$choice2 [L766] EXPR 1 \read(z) [L766] 1 z$mem_tmp = z [L767] EXPR 1 !z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : z$w_buff1) [L767] EXPR 1 \read(z) [L767] EXPR 1 !z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : z$w_buff1) [L767] 1 z = !z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : z$w_buff1) [L768] EXPR 1 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : z$w_buff0)) [L768] EXPR 1 !z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : z$w_buff0) [L768] EXPR 1 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : z$w_buff0)) [L768] 1 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : z$w_buff0)) [L769] EXPR 1 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff1 : z$w_buff1)) [L769] EXPR 1 !z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff1 : z$w_buff1) [L769] EXPR 1 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff1 : z$w_buff1)) [L769] 1 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff1 : z$w_buff1)) [L770] EXPR 1 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used)) [L770] EXPR 1 !z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used) [L770] EXPR 1 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used)) [L770] 1 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used)) [L771] EXPR 1 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L771] EXPR 1 !z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L771] EXPR 1 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L771] 1 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L772] EXPR 1 weak$$choice2 ? z$r_buff0_thd1 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$r_buff0_thd1 : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1)) [L772] EXPR 1 !z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$r_buff0_thd1 : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1) [L772] EXPR 1 weak$$choice2 ? z$r_buff0_thd1 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$r_buff0_thd1 : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1)) [L772] 1 z$r_buff0_thd1 = weak$$choice2 ? z$r_buff0_thd1 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$r_buff0_thd1 : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1)) [L773] EXPR 1 weak$$choice2 ? z$r_buff1_thd1 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$r_buff1_thd1 : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L773] EXPR 1 !z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$r_buff1_thd1 : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L773] EXPR 1 weak$$choice2 ? z$r_buff1_thd1 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$r_buff1_thd1 : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L773] 1 z$r_buff1_thd1 = weak$$choice2 ? z$r_buff1_thd1 : (!z$w_buff0_used || !z$r_buff0_thd1 && !z$w_buff1_used || !z$r_buff0_thd1 && !z$r_buff1_thd1 ? z$r_buff1_thd1 : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L774] 1 __unbuffered_p0_EAX$read_delayed = (_Bool)1 [L775] 1 __unbuffered_p0_EAX$read_delayed_var = &z [L776] EXPR 1 \read(z) [L776] 1 __unbuffered_p0_EAX = z [L777] EXPR 1 z$flush_delayed ? z$mem_tmp : z [L777] EXPR 1 \read(z) [L777] EXPR 1 z$flush_delayed ? z$mem_tmp : z [L777] 1 z = z$flush_delayed ? z$mem_tmp : z [L778] 1 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=51, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z={6:0}, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L781] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=51, weak$$choice1=0, weak$$choice2=0, x=1, y=0, z={6:0}, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L786] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L788] 1 return 0; [L793] 2 __unbuffered_p1_EAX = x VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=51, weak$$choice1=0, weak$$choice2=0, x=1, y=0, z={6:0}, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L796] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=51, weak$$choice1=0, weak$$choice2=0, x=1, y=1, z={6:0}, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L801] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L803] 2 return 0; [L808] 3 __unbuffered_p2_EAX = y VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=51, weak$$choice1=0, weak$$choice2=0, x=1, y=1, z={6:0}, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L811] 3 z = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=51, weak$$choice1=0, weak$$choice2=0, x=1, y=1, z={6:0}, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L814] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L814] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L814] EXPR 3 \read(z) [L814] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L814] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L814] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L815] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L815] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L816] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L816] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L817] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L817] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L818] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L818] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L821] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L823] 3 return 0; [L843] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L4] COND FALSE 0 !(!cond) [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L847] EXPR 0 \read(z) [L847] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L848] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L849] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L850] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L851] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L851] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L854] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L855] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L855] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L855] EXPR 0 \read(*__unbuffered_p0_EAX$read_delayed_var) [L855] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L855] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L855] 0 __unbuffered_p0_EAX = __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L856] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p1_EAX == 1 && __unbuffered_p2_EAX == 1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=51, weak$$choice1=255, weak$$choice2=0, x=1, y=1, z={6:0}, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 839]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 841]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 29927.7ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 26.2ms, AutomataDifference: 554.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 26844.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 167 SDtfs, 230 SDslu, 209 SDs, 0 SdLazy, 137 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 226.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 239.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 214.4ms AutomataMinimizationTime, 9 MinimizatonAttempts, 60 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 59.0ms SsaConstructionTime, 785.0ms SatisfiabilityAnalysisTime, 1040.7ms InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 849 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:40:41,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_358dbea8-c501-47d0-88ca-69527baa5a52/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...